CN214954998U - Palm print image acquisition equipment - Google Patents
Palm print image acquisition equipment Download PDFInfo
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- CN214954998U CN214954998U CN202120335532.6U CN202120335532U CN214954998U CN 214954998 U CN214954998 U CN 214954998U CN 202120335532 U CN202120335532 U CN 202120335532U CN 214954998 U CN214954998 U CN 214954998U
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Abstract
The utility model discloses a palm print image acquisition equipment, include: the box, control display screen, light source board electric telescopic handle, over-and-under type light source board, light source lamp, camera electric telescopic handle, camera, over-and-under type light source board are provided with first distance sensor on the bottom, are provided with second distance sensor on the camera electric telescopic handle, and first distance sensor and second distance sensor all are connected with the control display screen electricity. The first distance sensor and the second distance sensor respectively detect the moving distance parameters of the lifting light source plate and the camera, and display the parameters on the control display screen in real time without manual adjustment and manual reading, so that the accuracy of experimental parameters is improved; and because every light source lamp is connected with the control display screen electricity respectively, the switch and the luminance of every light source lamp are adjusted respectively to accessible control display screen, are convenient for carry out the experiment to the light source of different types, different colours, different quantity, different positions, have improved the flexibility of equipment.
Description
Technical Field
The utility model relates to an optical image takes pictures and acquires equipment technical field, and more specifically the utility model relates to a palm print image acquisition equipment that says so.
Background
At present, biological feature recognition is one of the most promising and high-level international technologies as a new identity authentication technology, and belongs to the international frontier topic, and palm print recognition is an important branch of biological feature recognition technology.
In a palm print recognition system for identity authentication, acquisition of a palm print image is an important aspect, and directly influences the difficulty of subsequent processing and the effect of a processing result, thereby influencing the recognition rate, robustness and performance of the system. A key problem in palm print recognition is the study of palm print image acquisition methods, including the design of the acquisition equipment and ancillary software, where there is no satisfactory solution to the optical photography-based palm print image acquisition method so far, and many factors affecting the performance of the image acquisition equipment, including light sources (type, color, light intensity distribution), imaging systems and palm positioning devices, remain to be further studied.
In order to facilitate the research of the palm print image acquisition method of optical photography, namely research on the influence of different design factors of the acquisition equipment on the equipment performance, the conventional palm print image acquisition equipment can dynamically adjust the positions of a camera and a light source, for example, the relative positions of the camera and a palm are manually adjusted from top to bottom, so that images of different areas and different ranges of the palm are obtained; the relative position of the light source and the palm can be adjusted manually up and down, so that different influences of different light source positions on the palm when the camera photographs the palm can be compared, and a palm image meeting requirements can be obtained.
However, the relative positions of the camera and the light source with respect to the palm are achieved by manually adjusting two sliding blocks slidably connected to the positioning rod, and the moving parameters of the camera and the light source need to be manually recorded by manually reading scales on the positioning rod, which inevitably causes a problem of human error during parameter adjustment and reading, and reduces the accuracy of the experiment.
Therefore, the technical staff in the field needs to solve the problem of how to provide a palm print image acquisition device which can automatically adjust the positions of a camera and a light source, automatically acquire and record the position parameters of the camera and the light source, improve the accuracy of adjustment and extraction of experimental parameters, and provide favorable experimental data for the research of the palm print image acquisition device.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a but automatically regulated camera and light source position, and can automatic acquisition and the two position parameter of record, improve the accuracy nature that experimental parameter adjusted and draw, provide the palm print image acquisition equipment of favourable experimental data for the research of palm print image acquisition equipment.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a palm print image pickup apparatus comprising:
the device comprises a box body, a control display screen is arranged on one side of the box body, and a palm stretching opening is formed in the top of a front side plate of the box body;
the palm placing plate is fixed inside the box body and is positioned below the palm extending port, and a palm center hole is formed in the palm placing plate;
the two light source plate electric telescopic rods are fixed at the bottom end of the inner side of the box body at intervals and are electrically connected with the control display screen;
the lifting type light source plate is characterized in that two sides of the lifting type light source plate are in sliding contact with two inner side walls of the box body respectively, the bottom end of the lifting type light source plate is fixedly connected with the telescopic end of the electric telescopic rod of the light source plate, a camera shooting window corresponding to the position of the palm hole is formed in the lifting type light source plate, a plurality of light source lamps are uniformly distributed at the top end of the lifting type light source plate on the periphery side of the camera shooting window, and each light source lamp is electrically connected with the control display screen respectively;
the camera electric telescopic rod is fixed at the bottom end of the inner side of the box body, a camera is fixed at the telescopic end of the camera electric telescopic rod, the lens of the camera corresponds to the position of the camera shooting window, and the camera electric telescopic rod and the camera are both electrically connected with the control display screen;
the camera electric telescopic rod is provided with a first distance sensor, the camera electric telescopic rod is provided with a second distance sensor, and the first distance sensor and the second distance sensor are electrically connected with the control display screen.
According to the technical scheme, compared with the prior art, the utility model discloses a palm print image acquisition equipment, the action of light source board electric telescopic link and camera electric telescopic link can be controlled respectively through the control display screen, the lifting light source board and the camera are driven to move up and down, simultaneously, the first distance sensor and the second distance sensor respectively detect the distance parameters of the movement of the lifting light source board and the camera, and the parameters are displayed on the control display screen in real time, manual adjustment and manual reading are not needed, and the accuracy of experimental parameters is improved; and because every light source lamp is connected with the control display screen electricity respectively, the switch and the luminance of every light source lamp are adjusted respectively to accessible control display screen, are convenient for carry out the experiment to the light source of different types, different colours, different quantity, different positions, have improved the flexibility of equipment.
Furthermore, rectangular shape direction spout has all been seted up on two inside walls of box, over-and-under type light source board both sides respectively with two rectangular shape direction spout one-to-one and sliding contact.
The beneficial effect who adopts above-mentioned technical scheme to produce is, improves the stability of over-and-under type light source board motion.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of a structure of a palm print image acquiring device according to the present invention.
Fig. 2 is a schematic view of the internal structure of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the embodiment of the utility model discloses a palm print image acquisition equipment, include:
the device comprises a box body 1, wherein a control display screen 2 is arranged on one side of the box body 1, and a palm extending port 101 is formed in the top of a front side plate of the box body 1;
the palm placing plate 3 is fixed inside the box body 1 and is positioned below the palm extending port 101, and a palm center hole 301 is formed in the palm placing plate 3;
the two light source plate electric telescopic rods 4 are fixed at the bottom end of the inner side of the box body 1 at intervals and are electrically connected with the control display screen 2;
the lifting type light source plate 5 is characterized in that two sides of the lifting type light source plate 5 are in sliding contact with two inner side walls of the box body 1 respectively, the bottom end of the lifting type light source plate 5 is fixedly connected with a telescopic end of an electric telescopic rod 4 of the light source plate, a camera window 501 corresponding to the palm center hole 301 is formed in the lifting type light source plate 5, a plurality of light source lamps 6 are uniformly distributed at the top end of the lifting type light source plate 5, located on the outer peripheral side of the camera window 501, and each light source lamp 6 is electrically connected with the control display screen 2 respectively;
the camera electric telescopic rod 7 is fixed at the bottom end of the inner side of the box body 1, the camera 8 is fixed at the telescopic end of the camera electric telescopic rod 7, the lens of the camera 8 corresponds to the position of the camera shooting window 501, and the camera electric telescopic rod 7 and the camera 8 are both electrically connected with the control display screen 2;
wherein, be provided with first distance sensor 9 on the over-and-under type light source board 5 bottom, be provided with second distance sensor 10 on the camera electric telescopic handle 7, first distance sensor 9 and second distance sensor 10 all are connected with control display screen 2 electricity.
The two inner side walls of the box body 1 are provided with strip-shaped guide sliding grooves 102, and two sides of the lifting light source plate 5 are in one-to-one correspondence and sliding contact with the two strip-shaped guide sliding grooves 102.
The utility model discloses a palm print image acquisition equipment, accessible control display screen controls light source board electric telescopic link and camera electric telescopic link action respectively, drives over-and-under type light source board and camera and reciprocates, simultaneously, first distance sensor and second distance sensor detect the distance parameter that over-and-under type light source board and camera moved respectively to show its parameter on the control display screen in real time, need not artifical regulation and artifical reading, improved the precision of experimental parameters; and because of every light source lamp is connected with the control display screen electricity respectively, the switch and the luminance of every light source lamp are adjusted respectively to accessible control display screen, are convenient for carry out the experiment to the light source of different types, different colours, different quantity, different positions, have improved the practical flexibility of equipment.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (2)
1. A palm print image pickup apparatus characterized by comprising:
the device comprises a box body (1), wherein a control display screen (2) is arranged on one side of the box body (1), and a palm stretching inlet (101) is formed in the top of a front side plate of the box body (1);
the palm placing plate (3) is fixed inside the box body (1) and is positioned below the palm extending opening (101), and a palm center hole (301) is formed in the palm placing plate (3);
the two light source plate electric telescopic rods (4) are fixed at the bottom end of the inner side of the box body (1) at intervals and are electrically connected with the control display screen (2);
the lifting type light source plate (5), two sides of the lifting type light source plate (5) are respectively in sliding contact with two inner side walls of the box body (1), the bottom end of the lifting type light source plate (5) is fixedly connected with the telescopic end of the light source plate electric telescopic rod (4), a camera window (501) corresponding to the palm center hole (301) is formed in the lifting type light source plate (5), a plurality of light source lamps (6) are uniformly distributed on the top end of the lifting type light source plate (5) and located on the outer peripheral side of the camera window (501), and each light source lamp (6) is electrically connected with the control display screen (2) respectively;
the camera electric telescopic rod (7) is fixed at the bottom end of the inner side of the box body (1), a camera (8) is fixed at the telescopic end of the camera electric telescopic rod (7), the position of a lens of the camera (8) corresponds to that of the camera shooting window (501), and the camera electric telescopic rod (7) and the camera (8) are both electrically connected with the control display screen (2);
the camera is characterized in that a first distance sensor (9) is arranged at the bottom end of the lifting light source plate (5), a second distance sensor (10) is arranged on the camera electric telescopic rod (7), and the first distance sensor (9) and the second distance sensor (10) are electrically connected with the control display screen (2).
2. The palm print image acquisition device according to claim 1, wherein the box body (1) is provided with elongated guide chutes (102) on both inner side walls, and both sides of the lifting light source plate (5) are in one-to-one correspondence and sliding contact with the two elongated guide chutes (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120335532.6U CN214954998U (en) | 2021-02-05 | 2021-02-05 | Palm print image acquisition equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120335532.6U CN214954998U (en) | 2021-02-05 | 2021-02-05 | Palm print image acquisition equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214954998U true CN214954998U (en) | 2021-11-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120335532.6U Active CN214954998U (en) | 2021-02-05 | 2021-02-05 | Palm print image acquisition equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214954998U (en) |
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2021
- 2021-02-05 CN CN202120335532.6U patent/CN214954998U/en active Active
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