CN105357516B - Inter-vehicle information system testboard bay image comparison method and system - Google Patents
Inter-vehicle information system testboard bay image comparison method and system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/02—Diagnosis, testing or measuring for television systems or their details for colour television signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
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Abstract
The invention discloses a kind of inter-vehicle information system testboard bay image comparison method and systems, provide high-precision image comparison function, reduce probability of miscarriage of justice.Its technical solution is：Pass through vision signal splitter, obtain the vision signal of display screen, pixel is directly carried out to design original image to compare one by one (it is poor that corresponding rgb value make), it is shown by software set difference threshold size and discrepancy color, so as to efficiently accomplish the comparison function of image, discrepancy is intuitively shown.
Description
Technical field
The present invention relates to a kind of inter-vehicle information system image measurement technologies, more particularly, to inter-vehicle information system testboard
The special image Compare System and method of frame.
Background technology
At present, for the new model that automobile vendor is coordinated constantly to release, meet user demand, inter-vehicle information system gradually to
Multi-functional, highly integrated development.The resolution ratio of display screen image is higher and higher, man-machine interface rich and varied, image color
It is increasingly abundanter, cause also increasing to the difficulty of test of image display correctness.
The test method being currently known is to take display image using the bat of high-precision camera, then by costly
Algorithm carry out image identification and reach contrastive test purpose.
Existing test system there are the shortcomings that：
1st, artificial visual comparison chart picture increases labor intensity, and each pixel can not be compared one by one, and
And the aberration due to human eye in itself, the result for causing different testers are different.
2nd, comparison of taking pictures is carried out to display screen by means of high-precision industrial camera, photo optical distortion increases image identification
Difficulty, image recognition software is expensive, and ambient brightness and the different more sensitivity of display screen color significant difference itself to test, holds
Easily cause erroneous judgement.
3rd, the disturbing factor of ambient is larger.It needs measured piece being placed on the black box that particular encapsulated disturbs without ambient light
Interior progress, so prevents the interference of ambient light, therefore more demanding to test environment.
Therefore, how efficiently to pinpoint the problems, orientation problem, problem analysis, validation problem are emphasis, a difficult point.
The content of the invention
A brief summary of one or more aspects is given below to provide to the basic comprehension in terms of these.This general introduction is not
The extensive overview of all aspects contemplated, and be both not intended to identify critical or decisive element in all aspects also non-
Attempt to define the scope in terms of any or all.Its unique purpose is to provide the one of one or more aspects in simplified form
A little concepts are with the sequence for more detailed description given later.
It is an object of the invention to solve the above problems, provide a kind of inter-vehicle information system testboard bay image and compare other side
Method and system provide high-precision image comparison function, reduce probability of miscarriage of justice.
The technical scheme is that：Present invention is disclosed a kind of inter-vehicle information system testboard bay image Compare System,
Including：
Vision signal splitter receives vision signal from the navigation host of inter-vehicle information system；
Signal resolution module, the parsing that rgb value is carried out to the image of vision signal operate, and obtain R value matrixs, G value matrixs
And B value matrixs；
Matrix value makees poor comparison module, by the R value matrixs parsed, G value matrixs and B the value matrixs R with design drawing respectively
It is poor that value matrix, G value matrixs and B value matrixs are made, and the threshold value for making difference and setting is compared；
Comparison result display module, the comparative result based on threshold value show the image of vision signal and the comparison knot of design drawing
Fruit.
One embodiment of inter-vehicle information system testboard bay image Compare System according to the present invention, shows in comparison result
In module, if R value matrixs, G value matrixs and B value matrixs are respectively less than corresponding threshold value as difference, image comparison result is qualified, no
Then comparison result fails.
One embodiment of inter-vehicle information system testboard bay image Compare System according to the present invention, further includes parameter adjustment
Module, the deviation of given threshold in the parameter adjustment module.
One embodiment of inter-vehicle information system testboard bay image Compare System according to the present invention, shows in comparison result
In module, actual threshold is obtained after given threshold to be subtracted to the deviation of threshold value, if R value matrixs, G value matrixs and B value matrixs are made
Difference is respectively less than corresponding actual threshold, then image comparison result is qualified, and otherwise comparison result fails.
One embodiment of inter-vehicle information system testboard bay image Compare System according to the present invention, comparison result show mould
Block also shows in the case of comparison result failure and overflows a little.
One embodiment of inter-vehicle information system testboard bay image Compare System according to the present invention, further includes parameter adjustment
Module can also set the display color to overflow a little in the parameter adjustment module.
One embodiment of inter-vehicle information system testboard bay image Compare System according to the present invention, signal resolution module are
Each pixel in the image of vision signal is parsed one by one.
Present invention further teaches a kind of inter-vehicle information system testboard bay image comparison method, including：
Vision signal is received from the navigation host of inter-vehicle information system；
The parsing that rgb value is carried out to the image of vision signal operates, and obtains R value matrixs, G value matrixs and B value matrixs；
By the R value matrixs parsed, G value matrixs and B value matrixs the R value matrixs, G value matrixs and B values with design drawing respectively
It is poor that matrix is made, and the threshold value for making difference and setting is compared；
Comparative result based on threshold value shows the image of vision signal and the comparison result of design drawing.
One embodiment of inter-vehicle information system testboard bay image comparison method according to the present invention, in comparison process,
If R value matrixs, G value matrixs and B value matrixs are respectively less than corresponding threshold value as difference, image comparison result is qualified, otherwise compares
As a result fail.
One embodiment of inter-vehicle information system testboard bay image comparison method according to the present invention, further includes to threshold value
The setting procedure of deviation.
One embodiment of inter-vehicle information system testboard bay image comparison method according to the present invention, in display comparison result
The step of in, actual threshold is obtained after the threshold value of setting is subtracted the deviation of threshold value, if R value matrixs, G value matrixs and B value squares
Battle array is respectively less than corresponding actual threshold as difference, then image comparison result is qualified, and otherwise comparison result fails.
One embodiment of inter-vehicle information system testboard bay image comparison method according to the present invention fails in comparison result
In the case of show and overflow a little.
One embodiment of inter-vehicle information system testboard bay image comparison method according to the present invention, the display face to overflow a little
Color can be set.
One embodiment of inter-vehicle information system testboard bay image comparison method according to the present invention, one by one to vision signal
Image in each pixel parsed.
The present invention comparison prior art has following advantageous effect：The scheme of the invention is by vision signal splitter,
The vision signal of display screen is obtained, pixel is directly carried out to design original image and compares (it is poor that corresponding rgb value make) one by one, is led to
It crosses software set difference threshold size and discrepancy color is shown, so as to efficiently accomplish the comparison function of image, display directly perceived is poor
Dissimilarity.
Compared to traditional technology, the present invention has the following advantages：
1st, hand labor intensity and probability of miscarriage of justice are reduced；
2nd, each pixel of image is compared one by one；
3rd, ambient brightness is excluded, the interference that lens optical distorts to test；
4th, the great number development cost of image recognition software is saved；
5th, discrepancy (discrepancy threshold and difference color adjustable) is intuitively and effectively shown.
Description of the drawings
Fig. 1 shows the flow of the first embodiment of the inter-vehicle information system testboard bay image comparison method of the present invention
Figure.
Fig. 2 shows the flow of the second embodiment of the inter-vehicle information system testboard bay image comparison method of the present invention
Figure.
Fig. 3 shows the principle of the first embodiment of the inter-vehicle information system testboard bay image Compare System of the present invention
Figure.
Fig. 4 shows the principle of the second embodiment of the inter-vehicle information system testboard bay image Compare System of the present invention
Figure.
Fig. 5 shows the comparison principle schematic of the present invention.
Specific embodiment
After the detailed description of embodiment of the disclosure is read in conjunction with the following drawings, it better understood when the present invention's
Features described above and advantage.In the accompanying drawings, each component is not necessarily drawn to scale, and with similar correlation properties or feature
Component may have same or similar reference numeral.
The first embodiment of inter-vehicle information system testboard bay image comparison method
Fig. 1 shows the flow of the first embodiment of the inter-vehicle information system testboard bay image comparison method of the present invention.
Fig. 1 is referred to, details are as follows for the detailed step of the method for the present embodiment.
Step S11：Vision signal is received from the navigation host of inter-vehicle information system.
Step S12：The parsing that rgb value is carried out to the image of vision signal operates, and obtains R value matrixs, G value matrixs and B
Value matrix.Each pixel in the image of vision signal is parsed.
Step S13：By the R value matrixs parsed, G value matrixs and B value matrixs respectively with the R value matrixs of design drawing, G value squares
It is poor that battle array and B value matrixs are made, and the threshold value for making difference and setting is compared.
Step S14：Comparative result based on threshold value shows the image of vision signal and the comparison result of design drawing.
In comparison process, if R value matrixs, G value matrixs and B value matrixs are respectively less than corresponding threshold value, image as difference
Comparison result is qualified, and otherwise comparison result fails.
Preferably, in the case of comparison result failure, display overflows a little.The display color to overflow a little is can to set
, it is readily identified to form apparent differentiation with original image color.
Fig. 5 shows that the image of the present invention compares principle.Adjustable parameter includes in comparison process：To consider to believe
The allowed band of the RGB differences of number distortion factors of itself and to form significant difference and easy to identify with original image color
The color that shows of different differences.Effect of the invention is that：First, image is compared using RGB difference arithmetics；Second is that
It is directly sampled from picture signal source, external interference factor is avoided to influence, while does not influence the display of display screen.
The second embodiment of inter-vehicle information system testboard bay image comparison method
Fig. 2 shows the flow of the second embodiment of the inter-vehicle information system testboard bay image comparison method of the present invention.
Fig. 2 is referred to, details are as follows for the detailed step of the method for the present embodiment.
Step S21：Vision signal is received from the navigation host of inter-vehicle information system.
Step S22：The parsing that rgb value is carried out to the image of vision signal operates, and obtains R value matrixs, G value matrixs and B
Value matrix.Each pixel in the image of vision signal is parsed.
Step S23：By the R value matrixs parsed, G value matrixs and B value matrixs respectively with the R value matrixs of design drawing, G value squares
It is poor that battle array and B value matrixs are made, while obtains actual threshold after the threshold value of setting is subtracted the deviation of threshold value, and will make difference and reality
Border threshold value is compared.
The deviation of threshold value is also that can set.
The step S13 of this step and first embodiment is different, this is because the presence of signal distortion factors itself, has
When certain departure can be caused to exist, so being sometimes also required to set certain deviation to eliminate these distortion factors.
Step S24：Comparative result based on threshold value shows the image of vision signal and the comparison result of design drawing.
In comparison process, if R value matrixs, G value matrixs and B value matrixs are respectively less than corresponding actual threshold as difference,
Image comparison result is qualified, and otherwise comparison result fails.
Preferably, in the case of comparison result failure, display overflows a little.The display color to overflow a little is can to set
, it is readily identified to form apparent differentiation with original image color.
Fig. 5 shows that the image of the present invention compares principle.Adjustable parameter includes in comparison process：To consider to believe
The allowed band of the RGB differences of number distortion factors of itself and to form significant difference and easy to identify with original image color
The color that shows of different differences.Effect of the invention is that：First, image is compared using RGB difference arithmetics；Second is that
It is directly sampled from picture signal source, external interference factor is avoided to influence, while does not influence the display of display screen.
The first embodiment of inter-vehicle information system testboard bay image Compare System
Fig. 3 shows the principle of the first embodiment of the inter-vehicle information system testboard bay image Compare System of the present invention.
Fig. 3 is referred to, the system of the present embodiment includes：Vision signal splitter 11, signal resolution module 12, matrix value make difference relatively mould
Block 13, comparison result display module 14.The output terminal connection signal resolution module 12 of vision signal splitter 11, signal resolution mould
The output terminal connection matrix value of block 12 makees poor comparison module 13, and matrix value makees the output terminal connection comparison result of poor comparison module 13
Display module 14.
Vision signal splitter 11 receives vision signal from the navigation host of inter-vehicle information system.Signal resolution module 12
The parsing that rgb value is carried out to the image of vision signal operates, and obtains R value matrixs, G value matrixs and B value matrixs.In the present embodiment
In be that each pixel in image to vision signal parses.
Matrix value make poor comparison module 13 by the R value matrixs parsed, G value matrixs and B value matrixs respectively with design drawing
It is poor that R value matrixs, G value matrixs and the B value matrixs of image are made, and the threshold value for making difference and setting is compared.
Comparative result of the comparison result display module 14 based on threshold value shows the comparison of the image and design drawing of vision signal
As a result.In comparison process, if R value matrixs, G value matrixs and B value matrixs are respectively less than corresponding threshold value as difference, image compares
As a result qualified, otherwise comparison result fails.Preferably, in the case of comparison result failure, display overflows a little.
Fig. 5 shows that the image of the present invention compares principle.Adjustable parameter includes in comparison process：To consider to believe
The allowed band of the RGB differences of number distortion factors of itself and to form significant difference and easy to identify with original image color
The color that shows of different differences.Effect of the invention is that：First, image is compared using RGB difference arithmetics；Second is that
It is directly sampled from picture signal source, external interference factor is avoided to influence, while does not influence the display of display screen.
The second embodiment of inter-vehicle information system testboard bay image Compare System
Fig. 4 shows the principle of the second embodiment of the inter-vehicle information system testboard bay image Compare System of the present invention.
Fig. 4 is referred to, the system of the present embodiment includes：Vision signal splitter 21, signal resolution module 22, matrix value make difference relatively mould
Block 23, comparison result display module 24 and parameter adjustment module 25.The output terminal connection signal solution of vision signal splitter 21
Module 22 is analysed, the output terminal connection matrix value of signal resolution module 22 makees poor comparison module 23, and matrix value makees poor comparison module 23
Output terminal connection comparison result display module 24, the output terminal connection matrix value of parameter adjustment module 25 makees poor comparison module
23。
Vision signal splitter 21 receives vision signal from the navigation host of inter-vehicle information system.Signal resolution module 22
The parsing that rgb value is carried out to the image of vision signal operates, and obtains R value matrixs, G value matrixs and B value matrixs.In the present embodiment
In be that each pixel in image to vision signal parses.
Parameter adjustment module 25 is used for the deviation of given threshold.The purpose for setting deviation is due to signal distortion itself
The presence of factor sometimes results in certain departure and exists, so being sometimes also required to set certain deviation to eliminate this
A little distortion factors.
Matrix value make poor comparison module 23 by the R value matrixs parsed, G value matrixs and B value matrixs respectively with design drawing
It is poor that R value matrixs, G value matrixs and the B value matrixs of image are made, while obtains reality after the threshold value of setting is subtracted the deviation of threshold value
Threshold value.
Comparative result of the comparison result display module 24 based on threshold value shows the comparison of the image and design drawing of vision signal
As a result.In comparison process, if R value matrixs, G value matrixs and B value matrixs are respectively less than corresponding actual threshold, image as difference
Comparison result is qualified, and otherwise comparison result fails.Preferably, in the case of comparison result failure, display overflows a little.Preferably
, the display color to overflow a little can be set in parameter adjustment module 25, set the display color that overflows a little be to
Apparent differentiation is formed with original image color, it is readily identified.
Fig. 5 shows that the image of the present invention compares principle.Adjustable parameter includes in comparison process：To consider to believe
The allowed band of the RGB differences of number distortion factors of itself and to form significant difference and easy to identify with original image color
The color that shows of different differences.Effect of the invention is that：First, image is compared using RGB difference arithmetics；Second is that
It is directly sampled from picture signal source, external interference factor is avoided to influence, while does not influence the display of display screen.
Although for explanation is simplified to illustrate the above method and is described as a series of actions, it should be understood that and understand,
These methods are limited from the order of action, because according to one or more embodiments, some actions can occur in different order
And/or with from it is depicted and described herein or herein it is not shown and describe but it will be appreciated by those skilled in the art that other
Action concomitantly occurs.
Those skilled in the art will further appreciate that, the various illustratives described with reference to the embodiments described herein
Logic plate, module, circuit and algorithm steps can be realized as electronic hardware, computer software or combination of the two.To be clear
Explain to Chu this interchangeability of hardware and software, various illustrative components, frame, module, circuit and step be above with
Its functional form makees generalization description.Such functionality be implemented as hardware or software depend on concrete application and
It is applied to the design constraint of total system.Technical staff can be realized described for each specific application with different modes
Functionality, but such realization decision-making should not be interpreted to cause departing from the scope of the present invention.
General place can be used with reference to various illustrative logic plates, module and the circuit that presently disclosed embodiment describes
Reason device, digital signal processor (DSP), application-specific integrated circuit (ASIC), field programmable gate array (FPGA) other are compiled
Journey logical device, discrete door or transistor logic, discrete nextport hardware component NextPort or its be designed to carry out function described herein
Any combinations are realized or performed.General processor can be microprocessor, but in alternative, which can appoint
What conventional processor, controller, microcontroller or state machine.Processor is also implemented as the combination of computing device, example
As the combination of DSP and microprocessor, multi-microprocessor, the one or more microprocessors to cooperate with DSP core or it is any its
His such configuration.
It can be embodied directly in hardware, in by processor with reference to the step of method or algorithm that embodiment disclosed herein describes
It is embodied in the software module of execution or in combination of the two.Software module can reside in RAM memory, flash memory, ROM and deposit
Reservoir, eprom memory, eeprom memory, register, hard disk, removable disk, CD-ROM or known in the art appoint
In the storage medium of what other forms.Exemplary storage medium is coupled to processor so that the processor can be from/to the storage
Medium is read and write-in information.In alternative, storage medium can be integrated into processor.Pocessor and storage media can
It resides in ASIC.ASIC can reside in user terminal.In alternative, pocessor and storage media can be used as discrete sets
Part is resident in the user terminal.
In one or more exemplary embodiments, described function can be in hardware, software, firmware, or any combination thereof
Middle realization.If being embodied as computer program product in software, each function can be used as the instruction of one or more items or generation
Code may be stored on the computer-readable medium or is transmitted by it.Computer-readable medium includes computer storage media and communication
Both media, including any medium that computer program is facilitated to shift from one place to another.Storage medium can be can quilt
Any usable medium that computer accesses.It is non-limiting as example, such computer-readable medium may include RAM, ROM,
EEPROM, CD-ROM or other optical disc storage, disk storage or other magnetic storage apparatus can be used to carrying or store instruction
Or data structure form desirable program code and any other medium that can be accessed by a computer.Any connection is also by by rights
Referred to as computer-readable medium.For example, if software is using coaxial cable, fiber optic cables, twisted-pair feeder, digital subscriber line
(DSL) or the wireless technology of such as infrared, radio and microwave etc is passed from web site, server or other remote sources
It send, then the coaxial cable, fiber optic cables, twisted-pair feeder, DSL or such as infrared, radio and microwave etc is wireless
Technology is just included among the definition of medium.Disk (disk) and dish (disc) as used herein include compression dish
(CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and blu-ray disc, which disk (disk) are often reproduced in a manner of magnetic
Data, and dish (disc) with laser reproduce data optically.Combinations of the above should also be included in computer-readable medium
In the range of.
Offer is for so that any person skilled in the art all can make or use this public affairs to the previous description of the disclosure
It opens.The various modifications of the disclosure all will be apparent for a person skilled in the art, and it is as defined herein general
Suitable principle can be applied to spirit or scope of other variants without departing from the disclosure.The disclosure is not intended to be limited as a result,
Due to example described herein and design, but should be awarded and principle disclosed herein and novel features phase one
The widest scope of cause.
Claims (8)
1. a kind of inter-vehicle information system testboard bay image Compare System, including：
Vision signal splitter receives vision signal from the navigation host of inter-vehicle information system；
Signal resolution module, the parsing that rgb value is carried out to the image of vision signal operate, and obtain R value matrixs, G value matrixs and B
Value matrix；
Matrix value makees poor comparison module, by the R value matrixs parsed, G value matrixs and B value matrixs R value squares with design drawing respectively
It is poor that battle array, G value matrixs and B value matrixs are made, and the threshold value for making difference and setting is compared；
Comparison result display module, the comparative result based on threshold value show the image of vision signal and the comparison result of design drawing,
If R value matrixs, G value matrixs and B value matrixs are respectively less than corresponding threshold value as difference, image comparison result is qualified, otherwise compares
As a result fail, show and overflowed a little in the case of comparison result failure, the display color to overflow a little can be set.
2. inter-vehicle information system testboard bay image Compare System according to claim 1, which is characterized in that further include ginseng
Number adjustment module, the deviation of given threshold and the display color to overflow a little in the parameter adjustment module.
3. inter-vehicle information system testboard bay image Compare System according to claim 2, which is characterized in that tied comparing
In fruit display module, actual threshold is obtained after given threshold to be subtracted to the deviation of threshold value, if R value matrixs, G value matrixs and B values
Matrix is respectively less than corresponding actual threshold as difference, then image comparison result is qualified, and otherwise comparison result fails.
4. inter-vehicle information system testboard bay image Compare System according to claim 1, which is characterized in that signal resolution
Module is that each pixel in the image of vision signal is parsed one by one.
5. a kind of inter-vehicle information system testboard bay image comparison method, including：
Vision signal is received from the navigation host of inter-vehicle information system；
The parsing that rgb value is carried out to the image of vision signal operates, and obtains R value matrixs, G value matrixs and B value matrixs；
By the R value matrixs parsed, G value matrixs and B value matrixs the R value matrixs, G value matrixs and B value matrixs with design drawing respectively
It is poor to make, and the threshold value for making difference and setting is compared；
Comparative result based on threshold value shows the image of vision signal and the comparison result of design drawing, if R value matrixs, G value matrixs
Corresponding threshold value is respectively less than as difference with B value matrixs, then image comparison result is qualified, and otherwise comparison result fails, and is tied comparing
It shows and is overflowed a little in the case of fruit failure, and the display color to overflow a little can be set.
6. inter-vehicle information system testboard bay image comparison method according to claim 5, which is characterized in that further include pair
The setting procedure of the deviation of threshold value.
7. inter-vehicle information system testboard bay image comparison method according to claim 6, which is characterized in that in display ratio
To in the step of result, actual threshold is obtained after the threshold value of setting is subtracted the deviation of threshold value, if R value matrixs, G value matrixs and
B value matrixs are respectively less than corresponding actual threshold as difference, then image comparison result is qualified, and otherwise comparison result fails.
8. inter-vehicle information system testboard bay image comparison method according to claim 5, which is characterized in that one by one to regarding
Each pixel in the image of frequency signal is parsed.
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| CN108156134A (en) * | 2017-11-29 | 2018-06-12 | 北京京航计算通讯研究所 | A kind of Spice protocol analysis systems based on FPGA |
| CN114758350A (en) * | 2022-03-25 | 2022-07-15 | 北京尽微致广信息技术有限公司 | Method and device for detecting difference points between design drawings and electronic equipment |
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| CN101505372A (en) * | 2008-02-06 | 2009-08-12 | 凹凸电子（武汉）有限公司 | System and method for optimizing camera settings |
| CN102479321A (en) * | 2010-11-26 | 2012-05-30 | 鸿富锦精密工业（深圳）有限公司 | Automatic identification system and method of difference image |
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