CN107566784A - Image processing method - Google Patents
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- CN107566784A CN107566784A CN201710586765.1A CN201710586765A CN107566784A CN 107566784 A CN107566784 A CN 107566784A CN 201710586765 A CN201710586765 A CN 201710586765A CN 107566784 A CN107566784 A CN 107566784A
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Abstract
The present invention relates to a kind of image processing method, including：Receive acquisition instructions；Image capture device is controlled to carry out IMAQ to obtain source images according to the acquisition instructions；Receive transmission instruction；The source images are transmitted to terminal according to the transmission instruction control described image collecting device；Receive play instruction；The source images according to the play instruction controls the terminal plays.The invention provides a kind of image processing method, needs to play from front end IMAQ to back-end image according to user to be reduced to three IMAQ, image transmitting and image player parts, the operation during greatly simplify.
Description
Technical field
The invention belongs to IMAQ field, more particularly to a kind of image processing method.
Background technology
Image capturing system passes through years development, and very important ground is obtained in fields such as military affairs, medical treatment, industry
Position.With the continuous improvement of footprint, image capturing system is just towards high-resolution, high frame per second, high integration, Gao Ke
Develop by the direction of property.
However, with the further investigation and extensive use of image processing and analyzing technology, computer is relied solely on to complete to scheme
The scene of more sophisticated is not suitable for as gathering, such as camouflage is tactics composition portion indispensable in modern war
Point, effectively camouflaged target can be identified using multispectral imaging.In order to ensure military equipment and armament equipment test
Validity, it is necessary to carry out field test under the different scene such as hill, hills and it is necessary to which the image of field scene is entered
Row collection, preserve, display.
Image capturing system based on high-performance computer comes across the eighties of last century sixties, and acquisition system at that time is big
Mostly special image acquisition processing system, application are narrower.Image capturing system progressively develops to generalization at present, such
Image capturing system utilizes the general high-performance interface of computer, designs the capture card of distinct interface form, then by computer
Powerful disposal ability realizes the collection of view data.In addition, according to different collection Card Types, capture card design manufacturer is simultaneously
Develop different types of driving and respective image processing software.Common computer based capture card mainly has three kinds,
PCI-e capture cards, USB capture cards and Ethernet capture card.
But above-mentioned several image capturing system, its host computer software function is complicated, is required to multiple collection buttons
Adapt to the IMAQ of different resolution, operation ease extreme difference.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of image processing method, this method to include：
Receive acquisition instructions；
Image capture device is controlled to carry out IMAQ to obtain source image data waiting for transmission according to the acquisition instructions；
Receive transmission instruction；
The source image data waiting for transmission was transmitted to end according to the transmission instruction control described image collecting device
End；
Receive play instruction；
The source images according to the play instruction controls the terminal plays.
In one embodiment of the invention, before acquisition instructions are obtained, in addition to：
Network connection is established so that host computer is controlled to the collecting device.
In one embodiment of the invention, according to the acquisition instructions control image capture device carry out IMAQ with
Source image data waiting for transmission is obtained, including：
Image capture device is controlled to carry out IMAQ to obtain the first image according to the acquisition instructions；
Described first image is subjected to processing and forms the source image data waiting for transmission.
In one embodiment of the invention, described first image is subjected to processing and forms the source images number waiting for transmission
According to, including：
Described first image is converted into the first data signal；
First data signal is converted into the second data signal；Wherein, second data signal includes row signal
With field signal；
The data block that processing forms particular size is carried out to second data signal；
Reduction treatment is carried out to the data block and forms the source image data waiting for transmission.
In one embodiment of the invention, the data that processing forms particular size are carried out to second data signal
Block, including：
View data is obtained from second data signal；
Header is obtained according to second data signal；
Integrated by the data image and the header according to setting rule of combination and according to the particular size with life
Into the data block.
In one embodiment of the invention, header is obtained according to second data signal, including：
The frame number of image has been sent by statistics to obtain the CSI frame number informations of described first image；
In the field signal valid period, by counting number that the row signal draws high to obtain described first image
Row resolution information；
In the row signal valid period, first figure is obtained by counting the number of the field signal valid data
The field resolution information of picture；
Obtain picture element position information of first valid pixel of each data frame in described first image；
The frame per second information of described first image is obtained by counting the effective degree of the field signal in certain time；
Obtain the locating depth information of described first image；
Described first image is obtained by comparing current pixel value and the current pixel maximum of described first image
Pixel maximum information；
Described first image is obtained by comparing current pixel value and the current pixel minimum value of described first image
Pixel minimum information；
By the CSI frame number informations, the row resolution information, the field resolution information, the picture element position information,
The frame per second information, the locating depth information, the pixel maximum information and the pixel minimum information are according to the setting
Rule of combination is combined to form the header..
In one embodiment of the invention, reduction treatment is carried out to the data block, including：
Believed according to the CSI frame number informations, the row resolution information, the field resolution information and the location of pixels
Breath parses the data block to form the source image data waiting for transmission.
In one embodiment of the invention, will be described to be passed according to the transmission instruction control described image collecting device
Defeated source image data is transmitted to terminal, including：
Control the collecting device to open multithreading according to the transmission instruction and establish Socket, formed with the terminal
Transmission channel；
The source image data waiting for transmission is transmitted to the terminal by the transmission channel.
In one embodiment of the invention, the source images according to the play instruction controls the terminal plays, bag
Include：
The CSI frame number informations, the frame are extracted from the source image data waiting for transmission according to the play instruction
Rate information, the locating depth information, the pixel maximum information and the pixel minimum information；
The source images are played according to the CSI frame number informations frame by frame；
The broadcasting frame number of the source images in special time is controlled according to the frame per second information；
The source images are controlled according to the locating depth information, the pixel maximum information and the pixel minimum information
Result of broadcast.
Compared with prior art, the invention has the advantages that：
The invention provides a kind of image processing method, needs to broadcast from front end IMAQ to back-end image according to user
Put and be reduced to three IMAQ, image transmitting and image player parts, the operation during greatly simplify.
Brief description of the drawings
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in detail.
Fig. 1 is a kind of flow chart of image processing method provided in an embodiment of the present invention；
Fig. 2 is a kind of operation interface schematic diagram of more Function Data Collect System software provided in an embodiment of the present invention；
Fig. 3 is a kind of structural representation of capture card provided in an embodiment of the present invention；
Fig. 4 is the attachment structure schematic diagram of another ARM chips provided in an embodiment of the present invention and fpga chip；
Fig. 5 is a kind of structural representation for data block that implementation column of the present invention provides；
Fig. 6 is a kind of working timing figure of the CSI interface provided in an embodiment of the present invention in Gated Mode；
Fig. 7 is a kind of working timing figure of the CSI interface provided in an embodiment of the present invention in Non-Gated Mode.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The present invention is described in further details below in conjunction with the accompanying drawings.
Embodiment one
Fig. 1 is referred to, Fig. 1 is a kind of flow chart of image processing method provided in an embodiment of the present invention.This method includes：
Receive acquisition instructions；
Image capture device is controlled to carry out IMAQ to obtain source image data waiting for transmission according to the acquisition instructions；
Receive transmission instruction；
The source image data waiting for transmission was transmitted to end according to the transmission instruction control described image collecting device
End；
Receive play instruction；
The source images according to the play instruction controls the terminal plays.
Further, on the basis of above-described embodiment, before acquisition instructions are obtained, in addition to：
Network connection is established so that host computer is controlled to the collecting device.
Further, on the basis of above-described embodiment, image capture device is controlled to carry out figure according to the acquisition instructions
Picture is gathered to obtain source image data waiting for transmission, including：
Image capture device is controlled to carry out IMAQ to obtain the first image according to the acquisition instructions；
Described first image is subjected to processing and forms the source image data waiting for transmission.
Further, on the basis of above-described embodiment, by described first image carry out processing formed it is described waiting for transmission
Source image data, including：
Described first image is converted into the first data signal；
First data signal is converted into the second data signal；Wherein, second data signal includes row signal
With field signal；
The data block that processing forms particular size is carried out to second data signal；
Reduction treatment is carried out to the data block and forms the source image data waiting for transmission.
Further, on the basis of above-described embodiment, first data signal, second data signal are TTL
Signal；Second data signal, first data signal are Low Voltage Differential Signal.
Further, on the basis of above-described embodiment, processing is carried out to second data signal and forms particular size
Data block, including：
View data is obtained from second data signal；
Header is obtained according to second data signal；
Integrated by the data image and the header according to setting rule of combination and according to the particular size with life
Into the data block.
Further, on the basis of above-described embodiment, header is obtained according to second data signal, including：
The frame number of image has been sent by statistics to obtain the CSI frame number informations of described first image；
In the field signal valid period, by counting number that the row signal draws high to obtain described first image
Row resolution information；
In the row signal valid period, first figure is obtained by counting the number of the field signal valid data
The field resolution information of picture；
Obtain picture element position information of first valid pixel of each data frame in described first image；
The frame per second information of described first image is obtained by counting the effective degree of the field signal in certain time；
Obtain the locating depth information of described first image；
Described first image is obtained by comparing current pixel value and the current pixel maximum of described first image
Pixel maximum information；
Described first image is obtained by comparing current pixel value and the current pixel minimum value of described first image
Pixel minimum information；
By the CSI frame number informations, the row resolution information, the field resolution information, the picture element position information,
The frame per second information, the locating depth information, the pixel maximum information and the pixel minimum information are according to the setting
Rule of combination is combined to form the header.
Further, on the basis of above-described embodiment, reduction treatment is carried out to the data block, including：
Believed according to the CSI frame number informations, the row resolution information, the field resolution information and the location of pixels
Breath parses the data block to form the source image data waiting for transmission.
Further, will according to the transmission instruction control described image collecting device on the basis of above-described embodiment
The source image data waiting for transmission is transmitted to terminal, including：
Control the collecting device to open multithreading according to the transmission instruction and establish Socket, formed with the terminal
Transmission channel；
The source image data waiting for transmission is transmitted to the terminal by the transmission channel.
Further, if occur powering off in source images transmitting procedure or other interrupt transmitting procedures situation, can
By resuming function, to continue to transmit the remainder of source image data waiting for transmission.
Further, on the basis of above-described embodiment, the source according to the play instruction controls the terminal plays
Image, including：
The CSI frame number informations, the frame are extracted from the source image data waiting for transmission according to the play instruction
Rate information, the locating depth information, the pixel maximum information and the pixel minimum information；
The source images are played according to the CSI frame number informations frame by frame；
The broadcasting frame number of the source images in special time is controlled according to the frame per second information；
The source images are controlled according to the locating depth information, the pixel maximum information and the pixel minimum information
Result of broadcast.
The present embodiment, the image player from the IMAQ of front end to rear end is reduced to image according to user's needs and adopted
Three collection, image transmitting and image player parts, the operation during greatly simplify.
Embodiment two
The present embodiment is on the basis of embodiment one, with camera, capture card, host computer and more work(on host computer
Above-mentioned image processing method is illustrated exemplified by energy Data Collection Software and by auxiliary of Fig. 2~Fig. 7.
Wherein, Fig. 2 is that a kind of operation interface of more Function Data Collect System software provided in an embodiment of the present invention is illustrated
Figure；Fig. 3 is a kind of structural representation of capture card provided in an embodiment of the present invention；Fig. 4 is provided in an embodiment of the present invention another
The attachment structure schematic diagram of kind ARM chips and fpga chip；Fig. 5 is that a kind of structure for data block that implementation column of the present invention provides is shown
It is intended to；Fig. 6 is a kind of working timing figure of the CSI interface provided in an embodiment of the present invention in Gated Mode；Fig. 7 is the present invention
A kind of working timing figure of the CSI interface that embodiment provides in Non-Gated Mode.
Further, the software is used for the function of realizing the above method, and camera and capture card have under the control of the software
Body performs source images collecting work, and capture card transmits source image data to host computer under the control of the software, by the software
The source image data is transferred on host computer and is played out, so that user checks.
Specifically, can include referring again to Fig. 2, the software interface：Gather button, transmission button, broadcast button and
Help button；Wherein, gather button to be used to send acquisition instructions, the acquisition instructions are used to control image capture device to carry out image
Gather to obtain source images；Transmission button is used to send transmission instruction, and the transmission is instructed for controlling described image collecting device
Source images are transmitted into host computer from the memory in image capture device；Broadcast button is used to send play instruction, should
Play instruction is used to control host computer to play transmitted source images；Help button is used to recall software document document, with side
User is helped to solve the problems, such as to encounter during the practical software.
Specific work process and principle are described in detail as follows：
First, after it is the IP by setting collector to carry out network connection, and collector establishes network connection, resistance is employed
The data structure for filling in queue waits the instruction to be sent, and is sent to server when there is data just to take out data in queue, at this
In individual module heartbeat mechanism has been normally added for guarantee connection.
Acquisition instructions are sent by the more Function Data Collect System software in host computer, specifically, when user clicks on
After gathering button, then host computer sends acquisition instructions to capture card, after the ARM chips in capture card receive acquisition instructions, then
CSI interface is opened, to receive the data block of FPGA transmissions by CSI interface.Further, referring again to Fig. 3, fpga chip
Also configuration-direct is sent to DS90LV019 chips, DS90LV019 chips by serial ports and turns the acquisition instructions by TTL signal
It is changed to Low Voltage Differential Signal and is sent by CameraLink interfaces to camera；Wherein, when the configuration-direct includes camera exposure
Between etc. parameter.
After camera receives configuration-direct, IMAQ is carried out according to the relevant parameter of configuration-direct to obtain source images number
According to, and the source image data is transmitted to DS90CR288A chips by CameraLink interfaces；CameraLink interfaces use
Low Voltage Differential Signal is transmitted, and according to CameraLink standard agreements, interface signal is mainly by 4 pairs of data wires, 1 pair of clock
Line, 2 pairs of null modem cables and 4 pairs of camera control line compositions.
After DS90CR288A chips receive the Low Voltage Differential Signal transmitted by CameraLink interfaces, by therein 4
The TTL signal of 28 parallel-by-bits is converted to data wire and 1 pair of clock line, including 24 data-signals, 1 row signal
HSYNC, 1 potential field signal VSYNC, 1 data valid signal and 1 Bits Expanding signal；After converting, DS90CR288A chips will
TTL signal is transmitted to fpga chip.
After the TTL signal that fpga chip receives the transmission of DS90CR288A chips, 24 data-signals therein are entered
Row is encoded to form view data；Obtain positional information of first valid pixel of each data frame in the source images；
The CSI frame number informations of the source images are obtained by counting the number of the data block sent；Have in the field signal
During effect, by counting number that the row signal draws high to obtain the row resolution information of the source images；Believe in the row
Number valid period；The field resolution information of the source images is obtained by counting the number of the field signal valid data；It is logical
The effective degree for counting the field signal in certain time is crossed to obtain the frame per second information of the source images；Pass through the source
The current pixel value of image is with current pixel maximum to obtain the pixel maximum information of the source images；By described in comparison
The current pixel values of source images is with current pixel minimum value to obtain the pixel minimum information of the source images；
Further, since ARM chips are also connected to fpga chip by 3 GPIO interfaces, specifically referring again to Fig. 4；
Fpga chip judges that the sample bits of present image deeply convince breath by detecting 3 GPIO interfaces, wherein, when 3 GPIO interfaces
When state is 000, the sampling locating depth for representing present image is 8, when the state of 3 GPIO interfaces is 001, represents current figure
The sampling locating depth of picture is 10, and when the state of 3 GPIO interfaces is 010, the sampling locating depth for representing present image is 12, when
When the state of 3 GPIO interfaces is 100, the sampling locating depth for representing present image is 14, when the state of 3 GPIO interfaces is
When 101, the sampling locating depth for representing present image is 16, when the state of 3 GPIO interfaces is 110, represents present image
It is 8 to sample locating depth, and when the state of 3 GPIO interfaces is 111, the sampling locating depth for representing present image is 8, if sample bits
Depth is 8, then behind valid data single byte be a pixel data, if it is other to sample locating depth, double-byte representation one
Individual pixel data；
After above- mentioned information is obtained, fpga chip is integrally formed data using above- mentioned information as header and with view data
Block, the data block is the packet of the fixed size defined according to rear end transmission port, if a two field picture is not enough to filling one
During packet, then it is filled with the front portion view data of latter two field picture, by that analogy.
Specifically, referring again to Fig. 5, wherein, first module is frame originating point information, is the h01 of fixed value 36 ', for representing
The beginning of the first row；Second unit is CSI frame number informations, for representing the arrangement sequence number of the data frame；Third unit is frame per second
Information, the playback rate for rear end control source images；Unit the 4th is row resolution information, Unit the 5th is a resolution ratio letter
Breath, is parsed for rear end to be restored to source images；Unit the 6th is that sample bits deeply convince that breath, Unit the 7th are pixel maximum
Information, Unit the 8th are pixel minimum information, for characterizing display effect when rear end shows source images；Unit the 9th is position
Confidence is ceased, and characterizes positional information of first valid pixel of each data frame in the source images, and number is parsed as rear end
According to original position during block；Unit the tenth is view data；Wherein, second unit to Unit the 9th is header part.
Fpga chip is by CSI interface by transmission of data blocks to ARM chips；Wherein, CSI interface is mainly comprising five letters
Number：Clock, Data_en, Vsync, Hsync, Data；CSI interface has two kinds of mode of operations：Gated Mode, Non-Gated
Mode；When CSI interface is operated in Gated Mode, its work schedule referring again to Fig. 6, wherein, Vsync is used to indicating every
One frame originates, and Hsync is used to indicate each start of line, and data are sampled in Clock trailing edge；When CSI interface works
In Non-Gated Mode, its work schedule is referring again to Fig. 7.In an embodiment of the present invention, using CSI interface
Gated Mode mode of operations.
After ARM chips receive the data block that fpga chip transmits by CSI interface, according to the first of each data frame
Positional information, the CSI frame number information of source images, the row resolution information of source images and source images of the valid pixel in source images
Field resolution information, be independent each two field picture by image data analyzing, and stored or transmitted in order；FPGA
Chip will inform ARM chips present frame is which frame that CSI interface receives when transmitting data, and have per frame data first
Position of the pixel in original image is imitated, even if loss of data, also original image can be gone out according to the Information recovering of data head；This
Outside, ARM chips deeply convince the pixel minimum information of breath, the pixel maximum information of source images and source images always according to sample bits,
So that the display effect of source images reaches optimal.
After user clicks on transmission button, then transmission instruction is sent to collecting device by host computer, by ARM chip solutions
Data frame after analysis is transmitted into host computer frame by frame, and the data frame can be obtained data frame after real time parsing, or
ARM chips are stored in the data frame in SSD after having parsed；In transmitting procedure, after transmission order is sent to collecting device, adopt
Server in collection equipment opens multithreading and establishes the transmission that Socket carries out file with host computer, when the data that host computer receives
The number of frame is equal to the number for the data frame that collecting device is sent, then deletes the initial data in collecting device；In addition, transmitting
During be also added into powering off (or Transmission caused by other reasonses) and resume function, remembered by writing property file
The current number for downloading file of record, continue to download file by reading attributes file when continuing to download.
Similarly, after user clicks on broadcast button, then host computer is controlled to play source images frame by frame by acquisition order, its
In, the pixel minimum information source of breath, the pixel maximum information of source images and source images can be deeply convinced by sample bits
The result of broadcast of image reaches optimal.
In summary, specific case used herein is set forth to the structure and embodiment of the present invention, the above
The explanation of embodiment is only intended to help the method and its core concept for understanding the present invention；Meanwhile for the general skill of this area
Art personnel, according to the thought of the present invention, there will be changes in specific embodiments and applications, to sum up, this explanation
Book content be should not be construed as limiting the invention, and protection scope of the present invention should be defined by appended claim.
Claims (9)
- A kind of 1. image processing method, it is characterised in that including：Receive acquisition instructions；Image capture device is controlled to carry out IMAQ to obtain source image data waiting for transmission according to the acquisition instructions；Receive transmission instruction；The source image data waiting for transmission is transmitted to terminal according to the transmission instruction control described image collecting device；Receive play instruction；The source images according to the play instruction controls the terminal plays.
- 2. according to the method for claim 1, it is characterised in that before acquisition instructions are obtained, in addition to：Network connection is established so that host computer is controlled to the collecting device.
- 3. according to the method for claim 1, it is characterised in that control image capture device to carry out according to the acquisition instructions IMAQ to obtain source image data waiting for transmission, including：Image capture device is controlled to carry out IMAQ to obtain the first image according to the acquisition instructions；Described first image is subjected to processing and forms the source image data waiting for transmission.
- 4. according to the method for claim 3, it is characterised in that by described first image carry out processing formed it is described to be transmitted Source image data, including：Described first image is converted into the first data signal；First data signal is converted into the second data signal；Wherein, second data signal includes row signal and field Signal；The data block that processing forms particular size is carried out to second data signal；Reduction treatment is carried out to the data block and forms the source image data waiting for transmission.
- 5. according to the method for claim 4, it is characterised in that second data signal is carried out processing formed it is specific big Small data block, including：View data is obtained from second data signal；Header is obtained according to second data signal；Integrated by the data image and the header according to setting rule of combination and according to the particular size to generate State data block.
- 6. according to the method for claim 5, it is characterised in that header is obtained according to second data signal, including：The frame number of image has been sent by statistics to obtain the CSI frame number informations of described first image；In the field signal valid period, the number drawn high by counting the row signal is divided with obtaining the row of described first image Resolution information；In the row signal valid period, described first image is obtained by counting the number of the field signal valid data Field resolution information；Obtain picture element position information of first valid pixel of each data frame in described first image；The frame per second information of described first image is obtained by counting the effective degree of the field signal in certain time；Obtain the locating depth information of described first image；The pixel of described first image is obtained by comparing current pixel value and the current pixel maximum of described first image Maximum value information；The pixel of described first image is obtained by comparing current pixel value and the current pixel minimum value of described first image Minimum value information；By CSI frame number informations, the row resolution information, the field resolution information, the picture element position information, described Frame per second information, the locating depth information, the pixel maximum information and the pixel minimum information combine according to the setting Rule is combined to form the header.
- 7. according to the method for claim 6, it is characterised in that reduction treatment is carried out to the data block, including：According to the CSI frame number informations, the row resolution information, the field resolution information and the picture element position information solution The data block is analysed to form the source image data waiting for transmission.
- 8. according to the method for claim 7, it is characterised in that according to the transmission instruction control described image collecting device The source image data waiting for transmission is transmitted to terminal, including：Control the collecting device to open multithreading according to the transmission instruction and establish Socket, formed and transmitted with the terminal Passage；The source image data waiting for transmission is transmitted to the terminal by the transmission channel.
- 9. according to the method for claim 8, it is characterised in that according to the play instruction controls the terminal plays Source images, including：The CSI frame number informations, frame per second letter are extracted from the source image data waiting for transmission according to the play instruction Breath, the locating depth information, the pixel maximum information and the pixel minimum information；The source images are played according to the CSI frame number informations frame by frame；The broadcasting frame number of the source images in special time is controlled according to the frame per second information；Broadcasting for the source images is controlled according to the locating depth information, the pixel maximum information and the pixel minimum information Put effect.
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