CN109854906B - Multi-dimensional adjusting rack, image recognition testing system and testing method for multi-dimensional adjusting rack - Google Patents

Abstract

The invention provides a multi-dimensional adjusting rack, an image recognition testing system and a method for testing the same, and relates to the technical field of image recognition; the multi-dimensional adjusting rack comprises a rack body, a tray arranged on the rack body and a plurality of holders arranged on the tray at intervals; each cradle head comprises a cradle head bearing seat and a cradle head base, the cradle head bearing seat and the cradle head base of each cradle head are hinged, and the cradle head bearing seat can swing around a hinge axis relative to the cradle head base so as to adjust the pitch angle of the cradle head bearing seat. The invention relieves the technical problem that the test rack in the prior art can not independently adjust the posture of the single image acquisition equipment and can not meet the working requirements.

Description

Multi-dimensional adjusting rack, image recognition testing system and testing method for multi-dimensional adjusting rack

Technical Field

The invention relates to the technical field of image recognition, in particular to a multi-dimensional adjusting rack, an image recognition test system and a method for testing the image recognition test system.

Background

Image recognition refers to a technique of processing, analyzing, and understanding an image with a computer to recognize objects and objects of various modes. Image recognition systems employing image recognition technology typically require testing prior to operation. When in testing, a plurality of image acquisition devices are required to be connected with an image recognition system, the image acquisition devices input shot image data into the image recognition system, the image recognition system processes the image data, and the running state of the image recognition system is judged according to the processing result.

For simultaneous input of a plurality of image acquisition apparatuses, a test stand for fixing the image acquisition apparatuses needs to be set up. The existing test rack cannot independently adjust the posture of a single image acquisition device on the premise that scenes of a plurality of image acquisition devices are consistent, and obviously cannot meet the working requirements.

Disclosure of Invention

The invention aims to provide a multi-dimensional adjusting rack, an image recognition testing system and a method for testing the image recognition testing system, so as to solve the technical problem that the independent adjustment of the posture of a single image acquisition device cannot be realized on the premise that the scenes of a plurality of image acquisition devices are consistent in the prior art, and the working requirements cannot be met.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the first aspect of the invention provides a multi-dimensional adjusting rack, which comprises a rack body, a tray arranged on the rack body and a plurality of holders arranged on the tray at intervals; each cradle head comprises a cradle head bearing seat and a cradle head base, the cradle head bearing seat and the cradle head base of each cradle head are hinged, and the cradle head bearing seat can swing around a hinge axis relative to the cradle head base so as to adjust the pitch angle of the cradle head bearing seat.

Further, a first bolt connected between the cradle head bearing seat and the cradle head base is arranged at the hinge axis, and the pitch angle of the cradle head bearing seat is fixed through the first bolt.

Further, the cradle head base is a concave plate, and the cradle head bearing seat is an inverted concave plate; the cradle head bearing seat is buckled on the cradle head base and forms a cavity for the cradle head bearing seat to swing with the cradle head base.

Further, the cradle head base of the concave plate is provided with two opposite first side walls; wherein, at least one first side wall is provided with an arc through hole along the extending direction of the hinge axis, and the arc center of the arc through hole is positioned on the hinge axis; the cradle head bearing seat is provided with two opposite second side walls, wherein a sliding piece is arranged on the second side wall corresponding to the first side wall provided with the arc-shaped through hole, and the sliding piece is in sliding connection with the arc-shaped through hole;

or alternatively, the first and second heat exchangers may be,

the cradle head bearing seat is provided with two opposite second side walls, at least one second side wall is provided with an arc-shaped through hole along the extending direction of the hinge axis, and the arc center of the arc-shaped through hole is positioned on the hinge axis; the cradle head base of the concave plate is provided with two opposite first side walls; the first side wall corresponding to the second side wall provided with the arc-shaped through hole is provided with a sliding piece, and the sliding piece is in sliding connection with the arc-shaped through hole.

Further, the sliding piece is a second bolt connected between the cradle head bearing seat and the cradle head base, and the cradle head bearing seat fixes the pitch angle through the second bolt.

Further, the tripod head base of each tripod head is provided with a rotating shaft connecting part connected with the tray, and the tripod head adjusts the yaw angle relative to the tray through the rotating shaft connecting part.

Further, the multidimensional adjusting rack further comprises a third bolt connected between the tray and the holder base, the connecting part of the rotating shaft is a bolt hole formed in the vertical direction, and the yaw angle of the holder is fixed through the third bolt.

Further, the rotating shaft connecting part arranged on the cradle head base is provided with a plurality of bolt holes, and the cradle head is connected with the tray through selecting different bolt holes, so that the position movement of the cradle head relative to the frame body is realized.

Further, at least three holes are sequentially formed in the top of the holder carrying seat, and the distance between two adjacent holes is matched with the butt joint position of the target equipment.

Further, the tray is a telescopic tray.

Further, the frame body is provided with a plurality of holes for installing the tray at intervals along the vertical direction, and the size of the holes is matched with the size of the holes at the corresponding positions of the tray.

Further, the tray is a plurality of and along vertical direction interval distribution, all is equipped with a plurality of cloud platforms on every tray.

Further, universal wheels are arranged on the support legs of the frame body.

Further, the rack also comprises a supporting plate which is connected to the rack body and used for bearing auxiliary accessories.

A second aspect of the present invention provides an image recognition test system comprising: the power transformer is used for providing electric energy for the image acquisition equipment, and the network switch is used for providing network connection for the image acquisition equipment arranged on the cradle head.

A third aspect of the present invention provides a method for testing an image recognition system using the image recognition test system described above, comprising the steps of:

a plurality of image acquisition devices are arranged on a cradle head in a multi-dimensional adjusting rack, and the image acquisition devices are connected with a power transformer and are in signal connection with an image recognition system through a network switch;

the positions and angles of the tray, the cradle head and the image acquisition equipment are adjusted so that the image acquisition equipment and the target image have proper distances, pitch angles and yaw angles;

starting a test, if the test is a live-action test, arranging the object to be tested to pass through the picture in sequence, and if the test is a flip test, playing a flip video;

after the test is finished, the image recognition system processes the received data transmitted by each image acquisition device and generates result data;

and comparing the result data to judge the operation conditions of the image acquisition equipment and the image recognition system.

The invention provides a multi-dimensional adjusting rack which comprises a rack body, a tray arranged on the rack body and a plurality of holders arranged on the tray at intervals; each cradle head comprises a cradle head bearing seat and a cradle head base, the cradle head bearing seat and the cradle head base of each cradle head are hinged, and the cradle head bearing seat can swing around a hinge axis relative to the cradle head base so as to adjust the pitch angle of the cradle head bearing seat. Because the plurality of the holders on the tray are arranged at intervals, each holder can independently adjust the pitch angle of the holder bearing seat, namely, the pitch angle posture of the image acquisition equipment arranged on the holder bearing seat can be independently adjusted, and the normal working requirements are met.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is an isometric view of a holder in a multi-dimensional adjustment rack provided by an embodiment of the present invention;

fig. 2 is a left side view of the pan-tilt head shown in fig. 1 according to an embodiment of the present invention;

fig. 3 is a front view of the pan-tilt head shown in fig. 1 according to an embodiment of the present invention;

FIG. 4 is an isometric view of a multi-dimensional adjustment frame provided by an embodiment of the present invention;

FIG. 5 is a right side view of the multi-dimensional adjustment frame of FIG. 4, provided in accordance with an embodiment of the present invention;

FIG. 6 is a front view of the multi-dimensional adjustment frame of FIG. 4 provided in accordance with an embodiment of the present invention;

FIG. 7 is a schematic diagram of the installation of an image acquisition device on a tray in a multi-dimensional adjustment housing provided by an embodiment of the present invention;

fig. 8 is a schematic diagram of connection between a tray and a pan-tilt in a multi-dimensional adjustment rack according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a tray in a multi-dimensional adjustment frame according to an embodiment of the present invention.

Icon: 100-cradle head; 110-a cradle head base; 111-a first sidewall; 112-arc-shaped through holes; 113-bolt holes; 120-a cradle head bearing seat; 121-a second sidewall; 122-inclined line; 123-arc chamfering; 124-a first hole; 125-a second hole; 126-third hole; 130-a first bolt; 140-a second bolt; 200-a frame body; 210-mounting holes; 220-reinforcing bars; 230-universal wheels; 300-tray; 310-a holder mounting through hole; 320-wiring grooves; 400-guide rail; 500-supporting plates; 600-image acquisition device.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.

The image recognition system is operated by adopting an image recognition technology, and before the image recognition system is operated, in order to ensure that the system can accurately and stably operate, equipment test is usually required to be carried out on the image recognition system. When testing, the light, angle and recognition distance of a plurality of image acquisition devices are generally required to be consistent, so that the fairness of the testing is ensured. The process of equipment testing is as follows: when a plurality of image capturing apparatuses simultaneously input the same image, if the images/results obtained after processing by the processing system are different, the image capturing apparatus or the processing system is considered to have a problem.

In order to perform simultaneous input of a plurality of image capturing apparatuses, a technician needs to build a test rack for fixing the image capturing apparatuses. Many test frames in some technologies are tripod or fixed support, and independent adjustment of a single image acquisition device in the presence of multiple image acquisition devices cannot be achieved, which obviously cannot meet the requirements.

The inventor has studied a multidimensional adjusting rack to alleviate the above problems, and the pitch angle adjustment of the cradle head bearing seat of a single cradle head is realized through the swinging of the cradle head bearing seat of the single cradle head relative to the cradle head base.

First, referring to fig. 1 to fig. 4, fig. 1 is an isometric view of a pan-tilt in a multi-dimensional adjustment rack according to an embodiment of the present invention; fig. 2 is a left side view of the pan-tilt head shown in fig. 1 according to an embodiment of the present invention; fig. 3 is a front view of the pan-tilt head shown in fig. 1 according to an embodiment of the present invention; FIG. 4 is an isometric view of a multi-dimensional adjustment frame provided by an embodiment of the present invention; the embodiment provides a multi-dimensional adjustment frame, including: the rack comprises a rack body 200, a tray 300 arranged on the rack body 200 and a plurality of holders 100 arranged on the tray 300 at intervals; each pan-tilt 100 includes a pan-tilt carrier 120 and a pan-tilt base 110; the pan-tilt bearing seat 120 of each pan-tilt 100 is hinged to the pan-tilt base 110, and the pan-tilt bearing seat 120 can swing around a hinge axis relative to the pan-tilt base 110 to adjust a pitch angle of the pan-tilt bearing seat 120.

As shown in fig. 7, the image capturing device is mounted on the pan-tilt carrier 120, since the pan-tilt 100 in this embodiment is multiple and arranged at intervals, each pan-tilt 100 can independently adjust the pitch angle of the pan-tilt carrier 120, that is, can independently adjust the pitch angle posture of the image capturing device mounted on the pan-tilt carrier 120, and can meet the normal working requirements.

After adjusting the pitch angle of the pan/tilt head carrier 120 to the desired pitch angle, the pan/tilt head carrier 120 needs to be fixed to be maintained in a fixed position. In order to facilitate adjustment and fixation of the pitch angle of the pan-tilt bearing seat 120, a first bolt 130 connected between the pan-tilt bearing seat 120 and the pan-tilt base 110 is disposed at the hinge axis, and the pitch angle of the pan-tilt bearing seat 120 is fixed by the first bolt 130. The hinge axis of the pan-tilt bearing 120 swinging relative to the pan-tilt base 110 is the axis of the first bolt 130.

Specifically, referring to fig. 3, a threaded hole is formed at the hinge axis of the pan-tilt-holder carrier 120, a through hole is formed at the hinge axis of the pan-tilt-holder base 110, the first bolt 130 includes a stud and a butterfly nut, one end of the stud passes through the through hole and is in threaded connection with the threaded hole, the other end of the stud is exposed at one side of the through hole facing away from the threaded hole, and the butterfly nut is connected to the other end of the stud. When the butterfly nut is screwed down, the holder base 110 is tightly propped against the holder bearing seat 120, and the pitch angle of the holder bearing seat 120 is fixed; when the butterfly nut is unscrewed, the space of the pan-tilt base 110 along the hinge axis direction is increased, the pan-tilt carrier 120 is separated from the pan-tilt base 110, and the pitch angle of the pan-tilt carrier 120 can be adjusted.

The inventors have found that when the pan/tilt head carrier 120 swings relative to the pan/tilt head base 110 to adjust the pitch angle, there are many factors that affect the adjustment range of the pitch angle. One of these factors is that the position of the hinge axis affects the swing amplitude of the pan/tilt head carrier 120, i.e., affects the adjustment amplitude of the pitch angle. In order to increase the swing amplitude of the pan-tilt carrier 120 and achieve symmetrical adjustment of the pitch angle of the pan-tilt carrier 120, the hinge axis is disposed at the center of the pan-tilt carrier 120. For example, when the pitch angle is adjusted along the front-rear direction, the hinge axis is at the center of the front-rear direction, which increases the swing amplitude of the front end of the pan-tilt carrier 120 and the swing amplitude of the rear end of the pan-tilt carrier 120, and the adjusting range is wider.

Another factor affecting the pitch angle adjustment range is the distance between pan-tilt mount 120 and pan-tilt mount 110 in the swing direction. In order to further increase the adjustment range of the pitch angle of the pan-tilt carrier 120, the pan-tilt base 110 is set to be a concave plate, and the pan-tilt carrier 120 is set to be an inverted concave plate; the pan-tilt bearing seat 120 is fastened on the pan-tilt base 110 and forms a cavity with the pan-tilt base 110 for the pan-tilt bearing seat 120 to swing. The cradle head bearing seat 120 is not easy to collide with the cradle head base 110 when in swinging, so that the cradle head bearing seat 120 can drive the image acquisition equipment to swing in a larger pitch angle range, and the shooting angle of the image acquisition equipment can be adjusted more conveniently. When the pitch angle is adjusted in the front-rear direction and the hinge axis is disposed at the center of the pan-tilt-head holder 120, the distance between the pan-tilt-head holder 120 and the pan-tilt-head base 110 is less than half the length of the pan-tilt-head holder 120, so that the pan-tilt-head holder 120 swings instead of 360 degrees.

As an optimization of the above structure, the pan and tilt head base 110 of the concave plate has two opposite first side walls 111, the pan and tilt head carrier 120 has two opposite second side walls 121, and the second side walls 121 may be located inside or outside the first side walls 111. The two end corners of the second side wall 121 are provided with arc chamfer angles 123, as shown in fig. 1 and 2, the arc middle part of the arc chamfer angles 123 is provided with inclined lines 122, so that when the pan-tilt bearing seat 120 rotates, the end corners of the second side wall 121 can avoid the pan-tilt base 110, and the scraping and the collision are avoided, so that the adjustment range of the pitch angle is further enlarged.

The first side wall 111 and the second side wall 121 extend along the vertical direction, which is favorable for improving the bearing capacity of the cradle head base 110 and the cradle head bearing seat 120 to the pressure in the vertical direction, and improves the bearing stability to the image acquisition equipment. Moreover, the first side wall 111 is attached to the second side wall 121, which plays a role in guiding the swing of the pan-tilt carrier 120 relative to the pan-tilt base 110, so as to prevent the pan-tilt carrier 120 from deflecting left and right relative to the pan-tilt base 110, and thus, the deflection angle is adjusted.

In the application process, due to the problems of manufacturing batch or materials of the cradle head bearing seat, the cradle head bearing seat may swing to deviate from the correct track. To alleviate the above problem, the inventor optimizes the structure between the pan-tilt bearing seat 120 and the pan-tilt base 110: when the second side wall 121 is located inside the first side wall 111, at least one first side wall 111 of the pan-tilt base 110 is provided with an arc-shaped through hole 112 along the extending direction of the hinge axis, and the arc center of the arc-shaped through hole 112 is located at the hinge axis; a sliding piece is arranged on a second side wall 121 of the holder bearing seat 120, which corresponds to the first side wall 111 provided with the arc-shaped through hole 112, and is in sliding connection with the arc-shaped through hole 112; when the second side wall 121 is located at the outer side of the first side wall 111 (not shown in the figure), the holder carrier has two opposite second side walls, at least one second side wall is provided with an arc-shaped through hole along the extending direction of the hinge axis, and the arc center of the arc-shaped through hole is located at the hinge axis; the cradle head base of the concave plate is provided with two opposite first side walls; the first side wall corresponding to the second side wall provided with the arc-shaped through hole is provided with a sliding piece, and the sliding piece is in sliding connection with the arc-shaped through hole. In this embodiment, the first sidewall 111 is provided with an arc-shaped through hole, and the second sidewall 121 is provided with a sliding member. When the cradle head bearing seat 120 swings, the sliding part is driven to slide along the arc-shaped through hole 112, and the sliding part is matched with the arc-shaped through hole 112 to guide the swing track of the cradle head bearing seat 120, so that the adjustment of the pitch angle is smoother.

The above multi-dimensional adjusting frame adopts the first bolt 130 disposed at the hinge axis to realize the fixed locking of the pitch angle of the pan-tilt bearing seat 120, and sometimes the locking mode may be too frequently used to gradually lose the locking function. In order to make the locked position of the pan-tilt carrier 120 more stable, the sliding member is configured as a second bolt 140 connected between the pan-tilt carrier 120 and the pan-tilt base 110, and the pan-tilt carrier 120 fixes the pitch angle by the second bolt 140. With continued reference to fig. 1 and 2, the second sidewall 121 is provided with a threaded hole or nut, the second bolt 130 includes a stud and a butterfly nut, and the second bolt 140 is disposed through the arc-shaped through hole 112 and is in threaded engagement with the threaded hole or nut. When the second bolt 140 is unscrewed, the second bolt 140 can slide in the arc-shaped through hole 112; when the second bolt 140 is screwed down, the first side wall 111 of the holder carrier 120 and the second side wall 121 of the holder base 110 can be squeezed and locked, so that the pitch angle is fixed, the holder carrier 120 is prevented from deflecting when being subjected to vibration or external force, and the position of the image acquisition device is more stable.

In the process of acquisition by the image acquisition device, the yaw angle of the image acquisition device also needs to be adjusted. In order to achieve that the yaw angle of the image capturing apparatus mounted on each pan-tilt head 100 can be individually adjusted, the pan-tilt head base 110 of each pan-tilt head 100 is provided with a rotation shaft connection portion connected with the tray 300, and the pan-tilt head 100 adjusts the yaw angle with respect to the tray 300 through the rotation shaft connection portion. Specifically, the rotation shaft connection part may be a rotation shaft hole or the like, and the cradle head 100 is rotated about the rotation axis of the rotation shaft connection part to achieve adjustment of the yaw angle of the tray 300.

When the yaw angle of the pan/tilt head is adjusted to a target set angle, the yaw angle needs to be fixed. To achieve the above object, as shown in fig. 1, a rotary shaft connecting portion is provided as a bolt hole 113 opened in a vertical direction; the multi-dimensional adjustment stand further includes a third bolt connected between the tray 300 and the holder base 110, and a yaw angle of the holder 100 is fixed by the third bolt. The rotation axis of the yaw angle is the axis of the bolt hole 113.

Specifically, as shown in fig. 9, a holder mounting through hole 310 that mates with the bolt hole 113 is provided in the tray 300, and a third bolt is threaded through the holder mounting through hole 310 from bottom to top and mates with the bolt hole 113. When the third bolt is unscrewed, the pan-tilt 100 can rotate around the axis of the third bolt to adjust the yaw angle; when the third bolt is screwed down, the cradle head 100 can be locked on the tray 300 to fix the yaw angle, so that the yaw angle can be adjusted more conveniently.

When the image capturing apparatus 600 captures an image, it may sometimes be necessary to approach or depart from the target image to obtain a better capturing result. In order to facilitate adjustment of the distance between the image capturing device 600 and the target image, the rotating shaft connecting portion of the pan-tilt base 110 is provided with a plurality of bolt holes 113, and the pan-tilt 100 is moved relative to the frame body 200 by selecting different bolt holes 113 to be connected with the tray 300. For example, when it is necessary to shorten the distance between the image capturing apparatus 600 and the target image, the first bolt hole provided from front to rear is selected to be connected to the tray 300. When the target image is required to be far away, the third bolt of the first bolt hole is unscrewed, the holder 100 is moved to the position of the second bolt hole and the holder mounting through hole 310 of the tray 300, and the third bolt penetrates through the second bolt hole and the holder mounting through hole 310 to be screwed and fixed.

There are other forms of implementation in which the image acquisition device 600 is closer to or farther from the target image. For example, as shown in fig. 1, at least three holes are sequentially formed on the top of the pan/tilt head carrier 120, and the distance between two adjacent holes is adapted to the butt joint of the target device (image capturing device 600). Specifically, the top of the holder carrier 120 is sequentially provided with the first hole 124, the second hole 125 and the third hole 126 along the front-back direction, and the positions between two adjacent holes are matched with the mounting butt joint position of the image acquisition device 600, so that the front-back position of the image acquisition device 600 is adjusted by selecting different two adjacent holes, and the adjustment range of the distance between the image acquisition device 600 and the target image is further enlarged.

In order to increase the adaptability of the cradle head and the image capturing device, the second hole 125 is set to be a circular hole, and the first hole 124 and the third hole 126 are elongated holes extending along the front-rear direction, so that the two threaded holes at the mounting butt joint position of the image capturing device 600 are matched with each other, and the adaptability of the image capturing device 600 with different models and specifications is improved.

The specific structure of the multi-dimensional adjusting frame that each image capturing device can achieve individual adjustment when there are a plurality of image capturing devices in the multi-dimensional adjusting frame has been described above. The inventors have found that when a plurality of image capturing apparatuses are present at the same time and are divided into a plurality of groups, the overall adjustment of the image capturing apparatuses of each group is also difficult to achieve.

To achieve the overall adjustment of the image capturing apparatuses of each group, the inventors have improved the structure of the tray 300: as shown in fig. 4 and 5, a plurality of trays are arranged at intervals along the vertical direction, and each tray 300 is provided with a plurality of holders 100. The image capture devices carried on each tray 300 are in a group. Each tray 300 is a flexible tray. The tray 300 is installed in the rack body 200 through the guide rail 400, the guide rail 400 is arranged on the rack body 200 along the front-back direction, the tray 300 can slide along the guide rail 400, so that a plurality of holders 100 on each group of trays 300 can move back and forth along with the tray 300, the distance between the image acquisition equipment 600 and a target image can be uniformly adjusted, the adjustment of a test scene is facilitated, and the test efficiency is improved.

The overall movement of the image capturing device on each set of trays is not only back and forth, but also up and down. In order to uniformly adjust the vertical positions of the plurality of holders 100 disposed on the tray 300, as shown in fig. 4 and 8, a plurality of mounting holes 210 are provided on the rack body 200 at intervals in the vertical direction, and the tray 300 is vertically moved by being selectively connected and fixed to different mounting holes 210. Specifically, the guide rail 400 is provided with locking screw holes, and bolts are inserted through the mounting holes 210 of the rack body 200 and are screw-engaged with the locking screw holes to lock the guide rail 400 and the tray 300 to the rack body 200. Through the up-and-down movement of the tray 300 on the frame body 200, the plurality of holders 100 arranged on the tray 300 drive the image acquisition device 600 to uniformly adjust the vertical position together, so that the target image shot by the image acquisition device 600 can be conveniently and uniformly adjusted.

Since the image capturing apparatus 600 has many cables to be connected, a cable deployment layout is required. As shown in fig. 9, a wiring groove 320 is provided on the tray 300, and the wiring groove 320 is provided at the rear side of the tray 300 to avoid interference with photographing of the image pickup device 600.

The testing of the image recognition system is required to be performed in different testing scenes so as to improve the accuracy of testing results, a plurality of image acquisition devices are mounted on the rack body through the cradle head, and all the image acquisition devices can be switched between different testing scenes, however, the inventor finds that the overall size of the rack body is larger due to the fact that the number of the image acquisition devices borne by the rack body is larger, so that the rotation of the rack body is more difficult in the moving process, inconvenience is brought to the switching between the testing scenes, and therefore, in order to facilitate the multi-dimensional adjustment rack to move and switch between the different testing scenes, universal wheels 230 are arranged on supporting legs of the rack body 200, and the flexibility of the rack body 200 in ground movement and steering is improved.

The rack body 200 is more in components and parts, uneven weight distribution is easy to occur, and the rack body 200 is easy to deform when moving due to external factors such as uneven ground, so that the mounting positions of the cradle head and the image acquisition equipment are offset. The inventor has further improved the frame body 200 in order to alleviate the above problems: as shown in fig. 6, a reinforcing rod 220 is connected to the rear side of the frame body 200, and two ends of the reinforcing rod 220 are connected to two upright posts of the frame body 200, so as to improve the strength of the frame body 200 and the stability of the overall structure, avoid deformation of the frame body 200 during the overall movement, and make the positions of the cradle head 100 and the image acquisition device on the frame body 200 more stable.

In order to facilitate the rack to carry the auxiliary fittings for testing, the rack further comprises a supporting plate 500 connected to the rack body 200, the auxiliary fittings are placed on the supporting plate 500, and the auxiliary fittings can be moved together by a random rack, so that convenience is provided for testing.

The specific structure of the multi-dimensional adjustment frame has been described above, and the image recognition test system is described next.

In the testing process, it is necessary to provide a power supply for the image capturing device 600 and transmit the data generated by capturing by the image capturing device 600 to the image recognition system, in order to improve the stability of power supply and data transmission, so as to smoothly and efficiently implement the test, the embodiment further provides an image recognition testing system, which includes: the power transformer, the network switch and the multi-dimensional adjusting rack are connected with the image acquisition equipment 600 installed on the multi-dimensional adjusting rack through cables, the power transformer is used for providing electric energy for the image acquisition equipment 600, and the network switch is used for providing network connection for the image acquisition equipment 600 so that the image acquisition equipment 600 can stably operate and testing can be ensured to be smoothly carried out.

When the image recognition test system is used for testing the image recognition system, the method comprises the following steps:

step S100, a plurality of image acquisition devices 600 are installed on a cradle head 100 in a multi-dimensional adjusting rack, the image acquisition devices 600 are connected with a power transformer and are in signal connection with an image recognition system through a network switch;

step S200, adjusting positions and angles of the tray 300, the cradle head 100, and the image capturing apparatus 600 so that the image capturing apparatus 600 has a proper distance, pitch angle, and yaw angle from the target image;

step S300, starting a test, if the test is a live-action test, arranging a target to be tested to pass through the picture in sequence, and if the test is a flip test, playing a flip video;

step S400, after the test is finished, the image recognition system processes the received data transmitted by each image acquisition device 600, and generates result data.

Step S500, by comparing the result data, determines the operation conditions of the image capturing apparatus 600 and the image recognition system.

The comparison result data in step S500 refers to result data corresponding to each image capturing device 600 after the comparison image recognition system processes the data transmitted by the different image capturing devices 600. If there is a difference in the result data, it is considered that there is a problem with the image recognition system or the image capturing apparatus 600.

The image recognition system for testing can be a background algorithm platform for recognizing the human face.

The image capturing device 600 mounted on the multi-dimensional adjustment frame may be a camera or an image recognition machine. The image recognition machine can perform shooting and recognition; when the image acquisition device 600 is an image recognition machine, the image recognition machine can be connected with a background algorithm platform, and the background algorithm platform can be omitted; when the image capturing device 600 is an image recognition machine and is connected to the background algorithm platform, the comparison result data in step S500 includes both the result data corresponding to each image recognition machine generated by the background algorithm platform and the result data generated by each image recognition machine.

Finally, it should be noted that: in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are only required to be seen with each other; the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; embodiments and features of embodiments in this application may be combined with each other without conflict. Such modifications, substitutions and combinations do not depart from the spirit of the invention.

Claims (15)

1. The multi-dimensional adjusting rack is characterized by comprising a rack body, a tray arranged on the rack body and a plurality of cloud platforms arranged on the tray at intervals;

each cradle head comprises a cradle head bearing seat and a cradle head base, the cradle head bearing seat and the cradle head base of each cradle head are hinged, and the cradle head bearing seat can swing around a hinge axis relative to the cradle head base so as to adjust the pitch angle of the cradle head bearing seat;

the cradle head base is a concave plate, and the cradle head bearing seat is an inverted concave plate;

the cradle head bearing seat is buckled on the cradle head base and a cavity for the cradle head bearing seat to swing is formed between the cradle head bearing seat and the cradle head base.

2. The multi-dimensional adjusting frame according to claim 1, wherein a first bolt connected between the pan-tilt-head carrier and the pan-tilt-head base is provided at the hinge axis, and a pitch angle of the pan-tilt-head carrier is fixed by the first bolt.

3. The multi-dimensional adjustment frame of claim 1, wherein the pan-tilt base of the concave plate has two opposing first side walls; at least one first side wall is provided with an arc through hole along the extending direction of the hinging axis, and the arc center of the arc through hole is positioned on the hinging axis;

the cradle head bearing seat is provided with two opposite second side walls, wherein a sliding piece is arranged on the second side wall corresponding to the first side wall provided with the arc-shaped through hole, and the sliding piece is in sliding connection with the arc-shaped through hole;

or alternatively, the first and second heat exchangers may be,

the cradle head bearing seat is provided with two opposite second side walls, at least one second side wall is provided with an arc-shaped through hole along the extending direction of the hinge axis, and the arc center of the arc-shaped through hole is positioned on the hinge axis;

the cradle head base of the concave plate is provided with two opposite first side walls; the first side wall corresponding to the second side wall provided with the arc-shaped through hole is provided with a sliding piece, and the sliding piece is in sliding connection with the arc-shaped through hole.

4. A multi-dimensional adjusting frame according to claim 3, wherein the slider is a second bolt connected between the pan-tilt mount and pan-tilt base, the pan-tilt mount securing the pitch angle via the second bolt.

5. The multi-dimensional adjustment frame of claim 1, wherein the pan-tilt mount of each pan-tilt is provided with a pivot connection to the tray, through which the pan-tilt adjusts a yaw angle relative to the tray.

6. The multi-dimensional adjusting frame according to claim 5, further comprising a third bolt connected between the tray and the pan-tilt base, wherein the rotating shaft connecting portion is a bolt hole opened in a vertical direction, and a yaw angle of the pan-tilt is fixed by the third bolt.

7. The multi-dimensional adjusting rack of claim 6, wherein the rotating shaft connecting part of the holder base is a plurality of bolt holes, and the holder is moved relative to the rack body by selecting different bolt holes to connect with the tray.

8. The multi-dimensional adjusting rack according to claim 1, wherein at least three holes are sequentially formed in the top of the holder, and the distance between two adjacent holes is adapted to the butt joint of the target device.

9. The multi-dimensional adjustment frame of claim 1, wherein the tray is a telescoping tray.

10. The multi-dimensional adjusting rack according to claim 1, wherein the rack body is provided with a plurality of holes for mounting the tray at intervals along a vertical direction, and the sizes of the holes are adapted to the sizes of the holes at the corresponding positions of the tray.

11. The multi-dimensional adjusting rack according to claim 1, wherein a plurality of trays are arranged at intervals in the vertical direction, and a plurality of holders are arranged on each tray.

12. The multi-dimensional adjusting frame according to claim 1, wherein universal wheels are provided on the legs of the frame body.

13. The multi-dimensional adjustment frame of claim 1, further comprising a pallet coupled to the frame body for carrying auxiliary accessories.

14. An image recognition testing system, comprising: a power transformer for providing electrical power to an image acquisition device, a network switch for providing network connectivity to an image acquisition device mounted on the cradle head, and a multi-dimensional adjustment stand according to any one of claims 1-13.

15. A method of testing an image recognition system using the image recognition test system of claim 14, comprising the steps of:

a plurality of image acquisition devices are arranged on a cradle head in a multi-dimensional adjusting rack, and the image acquisition devices are connected with a power transformer and are in signal connection with an image recognition system through a network switch;

the positions and angles of the tray, the cradle head and the image acquisition equipment are adjusted so that the image acquisition equipment and the target image have proper distances, pitch angles and yaw angles;

starting a test, if the test is a live-action test, arranging the object to be tested to pass through the picture in sequence, and if the test is a flip test, playing a flip video;

after the test is finished, the image recognition system processes the received data transmitted by each image acquisition device and generates result data;

and comparing the result data to judge the operation conditions of the image acquisition equipment and the image recognition system.