CN105357516A - Vehicle-mounted information system test table image comparison method and system - Google Patents
Vehicle-mounted information system test table 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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Abstract
The invention discloses a vehicle-mounted information system test table image comparison method and system which can provide a high-precision image comparison function and reduces misjudgment probability. The technical scheme lies in that a video signal of a display screen is obtained through a video signal splitter, pixel points of a video signal image are directly compared with pixel points of an original design image one by one (differences between corresponding RGB values are calculated), and difference threshold values and differential point color display are set through software, so that image comparison is effectively completed and differential points are displayed intuitively.
Description
Technical field
The present invention relates to a kind of inter-vehicle information system image measurement technology, particularly relate to the special image Compare System for inter-vehicle information system testboard bay and method.
Background technology
At present, the new model constantly released to coordinate automobile vendor, meets consumers' demand, and inter-vehicle information system is gradually to multi-functional, highly integrated development.The resolution of displaying screen images is more and more higher, man-machine interface rich and varied, image color is more and more abundanter, cause to image display correctness difficulty of test also increasing.
Method of testing known at present adopts high-precision camera to clap to get display image, then carries out image recognition by algorithm costly and reach contrastive test object.
The shortcoming that existing test macro exists:
1, artificial visual comparison chart picture, increases labour intensity, and cannot carry out comparison one by one to each pixel, and, due to the aberration of human eye itself, cause the result of different tester different.
2, to take pictures comparison to display screen by means of high accuracy industrial camera, photo optical distortion strengthens the difficulty of image recognition, image recognition software cost intensive, and to the ambient brightness of test and display screen look significant difference own different comparatively responsive, easily cause erroneous judgement.
3, the disturbing factor of extraneous light is larger.Need measured piece to be placed in black box that particular encapsulated disturbs without ambient light and carry out, prevent the interference of ambient light like this, therefore require higher to test environment.
Therefore, how efficiently to pinpoint the problems, orientation problem, problem analysis, validation problem be emphasis, a difficult point.
Summary of the invention
Below provide the brief overview of one or more aspect to provide the basic comprehension to these aspects.Detailed the combining of this not all aspect contemplated of general introduction is look at, and both not intended to be pointed out out the scope of key or decisive any or all aspect of elements nor delineate of all aspects.Its unique object is the sequence that some concepts that will provide one or more aspect in simplified form think the more detailed description provided after a while.
The object of the invention is to solve the problem, provide a kind of inter-vehicle information system testboard bay image comparison method and system, high-precision image comparison function is provided, reduces probability of miscarriage of justice.
Technical scheme of the present invention is: present invention is disclosed a kind of inter-vehicle information system testboard bay image Compare System, comprising:
Vision signal splitter, receiving video signals from the navigation host of inter-vehicle information system;
Signal resolution module, carries out the parse operation of rgb value to the image of vision signal, obtain R value matrix, G value matrix and B value matrix;
Matrix value makes difference comparison module, and the R value matrix, G value matrix and the B value matrix that parse is poor with the R value matrix of design drawing, G value matrix and B value matrix respectively, and the threshold value making difference and setting is compared;
Comparison result display module, based on the image of comparative result display video signal and the comparison result of design drawing of threshold value.
According to an embodiment of inter-vehicle information system testboard bay image Compare System of the present invention, in comparison result display module, if R value matrix, G value matrix and B value matrix make difference be all less than corresponding threshold value, then image comparison result is qualified, otherwise comparison result failure.
According to an embodiment of inter-vehicle information system testboard bay image Compare System of the present invention, also comprise parameter adjustment module, the deviate of setting threshold in described parameter adjustment module.
According to an embodiment of inter-vehicle information system testboard bay image Compare System of the present invention, in comparison result display module, actual threshold is obtained after setting threshold being deducted the deviate of threshold value, if R value matrix, G value matrix and B value matrix make difference be all less than corresponding actual threshold, then image comparison result is qualified, otherwise comparison result failure.
According to an embodiment of inter-vehicle information system testboard bay image Compare System of the present invention, comparison result display module also shows when comparison result failure and overflows a little.
According to an embodiment of inter-vehicle information system testboard bay image Compare System of the present invention, also comprise parameter adjustment module, in described parameter adjustment module, also can set the Show Color overflowed a little.
According to an embodiment of inter-vehicle information system testboard bay image Compare System of the present invention, signal resolution module is resolved each pixel in the image of vision signal one by one.
Present invention further teaches a kind of inter-vehicle information system testboard bay image comparison method, comprising:
Receiving video signals from the navigation host of inter-vehicle information system;
The image of vision signal is carried out to the parse operation of rgb value, obtain R value matrix, G value matrix and B value matrix;
The R value matrix, G value matrix and the B value matrix that parse is poor with the R value matrix of design drawing, G value matrix and B value matrix respectively, and the threshold value making difference and setting is compared;
Based on the image of comparative result display video signal and the comparison result of design drawing of threshold value.
According to an embodiment of inter-vehicle information system testboard bay image comparison method of the present invention, in comparison process, if R value matrix, G value matrix and B value matrix make difference be all less than corresponding threshold value, then image comparison result is qualified, otherwise comparison result failure.
According to an embodiment of inter-vehicle information system testboard bay image comparison method of the present invention, also comprise the setting procedure of the deviate to threshold value.
According to an embodiment of inter-vehicle information system testboard bay image comparison method of the present invention, in the step of display comparison result, actual threshold is obtained after the threshold value of setting being deducted the deviate of threshold value, if R value matrix, G value matrix and B value matrix make difference be all less than corresponding actual threshold, then image comparison result is qualified, otherwise comparison result failure.
According to an embodiment of inter-vehicle information system testboard bay image comparison method of the present invention, show when comparison result failure and overflow a little.
According to an embodiment of inter-vehicle information system testboard bay image comparison method of the present invention, the Show Color overflowed a little can set.
According to an embodiment of inter-vehicle information system testboard bay image comparison method of the present invention, one by one each pixel in the image of vision signal is resolved.
The present invention contrasts prior art following beneficial effect: the solution of the present invention is by vision signal splitter, obtain the vision signal of display screen, directly carry out pixel comparison one by one (it is poor that corresponding rgb value carries out) to design original image, by software set difference threshold size and the display of discrepancy color, thus effectively complete the comparison function of image, intuitively show discrepancy.
Compared to conventional art, the present invention has the following advantages:
1, hand labor intensity and probability of miscarriage of justice is reduced;
2, one by one each pixel of image is compared;
3, ambient brightness, lens optical distortion is got rid of to the interference of test;
4, the great number development cost of image recognition software is saved;
5, discrepancy (discrepancy threshold and difference color adjustable) is intuitively effectively shown.
Accompanying drawing explanation
Fig. 1 shows the flow chart of the first embodiment of inter-vehicle information system testboard bay image comparison method of the present invention.
Fig. 2 shows the flow chart of the second embodiment of inter-vehicle information system testboard bay image comparison method of the present invention.
Fig. 3 shows the schematic diagram of the first embodiment of inter-vehicle information system testboard bay image Compare System of the present invention.
Fig. 4 shows the schematic diagram of the second embodiment of inter-vehicle information system testboard bay image Compare System of the present invention.
Fig. 5 shows comparison principle schematic of the present invention.
Embodiment
After the detailed description of reading embodiment of the present disclosure in conjunction with the following drawings, above-mentioned feature and advantage of the present invention can be understood better.In the accompanying drawings, each assembly is not necessarily drawn in proportion, and the assembly with similar correlation properties or feature may have identical or close Reference numeral.
First embodiment of inter-vehicle information system testboard bay image comparison method
Fig. 1 shows the flow process of the first embodiment of inter-vehicle information system testboard bay image comparison method of the present invention.Refer to Fig. 1, details are as follows for the detailed step of the method for the present embodiment.
Step S11: receiving video signals from the navigation host of inter-vehicle information system.
Step S12: the parse operation of the image of vision signal being carried out to rgb value, obtains R value matrix, G value matrix and B value matrix.Each pixel in the image of vision signal is resolved.
Step S13: the R value matrix, G value matrix and the B value matrix that parse is poor with the R value matrix of design drawing, G value matrix and B value matrix respectively, and the threshold value making difference and setting is compared.
Step S14: based on the image of comparative result display video signal and the comparison result of design drawing of threshold value.
In comparison process, if R value matrix, G value matrix and B value matrix make difference be all less than corresponding threshold value, then image comparison result is qualified, otherwise comparison result failure.
Preferably, when comparison result failure, display overflows a little.The Show Color overflowed a little can set, and in order to form obvious differentiation with original image color, is easy to identify.
Fig. 5 shows image ratio of the present invention to principle.In comparison process, adjustable parameter comprises: in order to consider the RGB difference of the distortion factors of signal itself allowed band and in order to form the color of obviously difference and different differences displays easy to identify with original image color.Effect of the present invention is: one is utilize RGB difference arithmetic to compare to image; Two is directly from the sampling of picture signal source, avoids external interference factor to affect, does not affect the display of display screen simultaneously.
Second embodiment of inter-vehicle information system testboard bay image comparison method
Fig. 2 shows the flow process of the second embodiment of inter-vehicle information system testboard bay image comparison method of the present invention.Refer to Fig. 2, details are as follows for the detailed step of the method for the present embodiment.
Step S21: receiving video signals from the navigation host of inter-vehicle information system.
Step S22: the parse operation of the image of vision signal being carried out to rgb value, obtains R value matrix, G value matrix and B value matrix.Each pixel in the image of vision signal is resolved.
Step S23: the R value matrix, G value matrix and the B value matrix that parse is poor with the R value matrix of design drawing, G value matrix and B value matrix respectively, obtain actual threshold after the threshold value of setting being deducted the deviate of threshold value simultaneously, and will difference be made and actual threshold compares.
The deviate of threshold value also can set.
The step S13 of this step and the first embodiment is different, and this is the existence due to the distortion factors of signal own, causes certain departure to exist, so sometimes also need to set certain deviate to eliminate these distortion factors sometimes.
Step S24: based on the image of comparative result display video signal and the comparison result of design drawing of threshold value.
In comparison process, if R value matrix, G value matrix and B value matrix make difference be all less than corresponding actual threshold, then image comparison result is qualified, otherwise comparison result failure.
Preferably, when comparison result failure, display overflows a little.The Show Color overflowed a little can set, and in order to form obvious differentiation with original image color, is easy to identify.
Fig. 5 shows image ratio of the present invention to principle.In comparison process, adjustable parameter comprises: in order to consider the RGB difference of the distortion factors of signal itself allowed band and in order to form the color of obviously difference and different differences displays easy to identify with original image color.Effect of the present invention is: one is utilize RGB difference arithmetic to compare to image; Two is directly from the sampling of picture signal source, avoids external interference factor to affect, does not affect the display of display screen simultaneously.
First embodiment of inter-vehicle information system testboard bay image Compare System
Fig. 3 shows the principle of the first embodiment of inter-vehicle information system testboard bay image Compare System of the present invention.Refer to Fig. 3, the system of the present embodiment comprises: vision signal splitter 11, signal resolution module 12, matrix value make difference comparison module 13, comparison result display module 14.The output connection signal parsing module 12 of vision signal splitter 11, the output connection matrix value of signal resolution module 12 makes difference comparison module 13, and the output that matrix value makes difference comparison module 13 connects comparison result display module 14.
Vision signal splitter 11 is receiving video signals from the navigation host of inter-vehicle information system.The image of signal resolution module 12 pairs of vision signals carries out the parse operation of rgb value, obtains R value matrix, G value matrix and B value matrix.That each pixel in the image of vision signal is resolved in the present embodiment.
Matrix value makes difference comparison module 13, and the R value matrix, G value matrix and the B value matrix that parse is poor with the R value matrix of the image of design drawing, G value matrix and B value matrix respectively, and the threshold value making difference and setting is compared.
Comparison result display module 14 is based on the image of comparative result display video signal of threshold value and the comparison result of design drawing.In comparison process, if R value matrix, G value matrix and B value matrix make difference be all less than corresponding threshold value, then image comparison result is qualified, otherwise comparison result failure.Preferably, when comparison result failure, display overflows a little.
Fig. 5 shows image ratio of the present invention to principle.In comparison process, adjustable parameter comprises: in order to consider the RGB difference of the distortion factors of signal itself allowed band and in order to form the color of obviously difference and different differences displays easy to identify with original image color.Effect of the present invention is: one is utilize RGB difference arithmetic to compare to image; Two is directly from the sampling of picture signal source, avoids external interference factor to affect, does not affect the display of display screen simultaneously.
Second embodiment of inter-vehicle information system testboard bay image Compare System
Fig. 4 shows the principle of the second embodiment of inter-vehicle information system testboard bay image Compare System of the present invention.Refer to Fig. 4, the system of the present embodiment comprises: vision signal splitter 21, signal resolution module 22, matrix value make difference comparison module 23, comparison result display module 24 and parameter adjustment module 25.The output connection signal parsing module 22 of vision signal splitter 21, the output connection matrix value of signal resolution module 22 makes difference comparison module 23, the output that matrix value makes difference comparison module 23 connects comparison result display module 24, and the output connection matrix value of parameter adjustment module 25 makes difference comparison module 23.
Vision signal splitter 21 is receiving video signals from the navigation host of inter-vehicle information system.The image of signal resolution module 22 pairs of vision signals carries out the parse operation of rgb value, obtains R value matrix, G value matrix and B value matrix.That each pixel in the image of vision signal is resolved in the present embodiment.
Parameter adjustment module 25 is for the deviate of setting threshold.The object arranging deviate is the existence due to the distortion factors of signal own, causes certain departure to exist, so sometimes also need to set certain deviate to eliminate these distortion factors sometimes.
Matrix value makes difference comparison module 23, and the R value matrix, G value matrix and the B value matrix that parse is poor with the R value matrix of the image of design drawing, G value matrix and B value matrix respectively, obtains actual threshold after the threshold value of setting being deducted the deviate of threshold value simultaneously.
Comparison result display module 24 is based on the image of comparative result display video signal of threshold value and the comparison result of design drawing.In comparison process, if R value matrix, G value matrix and B value matrix make difference be all less than corresponding actual threshold, then image comparison result is qualified, otherwise comparison result failure.Preferably, when comparison result failure, display overflows a little.Preferably, the Show Color overflowed a little can set in parameter adjustment module 25, and the setting Show Color overflowed a little is in order to form obvious differentiation with original image color, is easy to identify.
Fig. 5 shows image ratio of the present invention to principle.In comparison process, adjustable parameter comprises: in order to consider the RGB difference of the distortion factors of signal itself allowed band and in order to form the color of obviously difference and different differences displays easy to identify with original image color.Effect of the present invention is: one is utilize RGB difference arithmetic to compare to image; Two is directly from the sampling of picture signal source, avoids external interference factor to affect, does not affect the display of display screen simultaneously.
Said method illustrated although simplify for making explanation and is described as a series of actions, it should be understood that and understand, these methods not limit by the order of action, because according to one or more embodiment, some actions can occur by different order and/or with from illustrating herein and describe or not shown and to describe but other actions that it will be appreciated by those skilled in the art that occur concomitantly herein.
Those skilled in the art will understand further, and the various illustrative logic plates, module, circuit and the algorithm steps that describe in conjunction with embodiment disclosed herein can be embodied as electronic hardware, computer software or the combination of both.For clearly explaining orally this interchangeability of hardware and software, various illustrative components, frame, module, circuit and step are done vague generalization above with its functional form and are described.This type of is functional is implemented as hardware or software depends on embody rule and puts on the design constraint of total system.Technical staff can realize described functional by different modes for often kind of application-specific, but such realize decision-making and should not be interpreted to and cause having departed from scope of the present invention.
The various illustrative logic plates, module and the circuit that describe in conjunction with embodiment disclosed herein can realize with general processor, digital signal processor (DSP), application-specific integrated circuit (ASIC) (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete door or transistor logic, discrete nextport hardware component NextPort or its any combination being designed to perform function described herein or perform.General processor can be microprocessor, but in alternative, and this processor can be the processor of any routine, controller, microcontroller or state machine.Processor can also be implemented as the combination of computing equipment, the combination of such as DSP and microprocessor, multi-microprocessor, with one or more microprocessor of DSP central cooperation or any other this type of configure.
The method described in conjunction with embodiment disclosed herein or the step of algorithm can be embodied directly in hardware, in the software module performed by processor or in the combination of both and embody.Software module can reside in the storage medium of RAM memory, flash memory, ROM memory, eprom memory, eeprom memory, register, hard disk, removable dish, CD-ROM or any other form known in the art.Exemplary storage medium is coupled to processor and can reads and written information from/to this storage medium to make this processor.In alternative, storage medium can be integrated into processor.Processor and storage medium can reside in ASIC.ASIC can be in the user terminal resident.In alternative, it is in the user terminal resident that processor and storage medium can be used as discrete assembly.
In one or more exemplary embodiment, described function can realize in hardware, software, firmware or its any combination.If be embodied as computer program in software, then each function can as one or more bar instruction or code storage on a computer-readable medium or mat its transmit.Computer-readable medium comprises computer-readable storage medium and communication media, and it comprises facilitates computer program from a ground to any medium that another ground shifts.Storage medium can be can by any usable medium of computer access.Exemplarily non-limiting, such computer-readable medium can comprise RAM, ROM, EEPROM, CD-ROM or other optical disc storage, disk storage or other magnetic storage apparatus, maybe can be used to carry or store instruction or data structure form desirable program code and can by other medium any of computer access.Any connection is also properly termed a computer-readable medium.Such as, if software be use coaxial cable, fiber optic cables, twisted-pair feeder, digital subscribe lines (DSL) or such as infrared, radio and microwave and so on wireless technology from web site, server or other remote source transmission, then this coaxial cable, fiber optic cables, twisted-pair feeder, DSL or such as infrared, radio and microwave and so on wireless technology are just included among the definition of medium.Dish as used herein (disk) and dish (disc) comprise compact disc (CD), laser dish, laser disc, digital versatile dish (DVD), floppy disk and blu-ray disc, its mid-game (disk) is often with the mode rendering data of magnetic, and dish (disc) laser rendering data to be optically.Above-mentioned combination also should be included in the scope of computer-readable medium.
Thering is provided previous description of the present disclosure is for making any person skilled in the art all can make or use the disclosure.To be all apparent for a person skilled in the art to various amendment of the present disclosure, and generic principles as defined herein can be applied to other variants and can not depart from spirit or scope of the present disclosure.Thus, the disclosure not intended to be is defined to example described herein and design, but the widest scope consistent with principle disclosed herein and novel features should be awarded.
Claims (14)
1. an inter-vehicle information system testboard bay image Compare System, comprising:
Vision signal splitter, receiving video signals from the navigation host of inter-vehicle information system;
Signal resolution module, carries out the parse operation of rgb value to the image of vision signal, obtain R value matrix, G value matrix and B value matrix;
Matrix value makes difference comparison module, and the R value matrix, G value matrix and the B value matrix that parse is poor with the R value matrix of design drawing, G value matrix and B value matrix respectively, and the threshold value making difference and setting is compared;
Comparison result display module, based on the image of comparative result display video signal and the comparison result of design drawing of threshold value.
2. inter-vehicle information system testboard bay image Compare System according to claim 1, it is characterized in that, in comparison result display module, if R value matrix, G value matrix and B value matrix make difference be all less than corresponding threshold value, then image comparison result is qualified, otherwise comparison result failure.
3. inter-vehicle information system testboard bay image Compare System according to claim 1, is characterized in that, also comprise parameter adjustment module, the deviate of setting threshold in described parameter adjustment module.
4. inter-vehicle information system testboard bay image Compare System according to claim 3, it is characterized in that, in comparison result display module, actual threshold is obtained after setting threshold being deducted the deviate of threshold value, if R value matrix, G value matrix and B value matrix make difference be all less than corresponding actual threshold, then image comparison result is qualified, otherwise comparison result failure.
5. according to described inter-vehicle information system testboard bay image Compare System arbitrary in claim 2 or 4, it is characterized in that, comparison result display module also shows when comparison result failure and overflows a little.
6. inter-vehicle information system testboard bay image Compare System according to claim 5, is characterized in that, also comprise parameter adjustment module, also can set the Show Color overflowed a little in described parameter adjustment module.
7. inter-vehicle information system testboard bay image Compare System according to claim 1, is characterized in that, signal resolution module is resolved each pixel in the image of vision signal one by one.
8. an inter-vehicle information system testboard bay image comparison method, comprising:
Receiving video signals from the navigation host of inter-vehicle information system;
The image of vision signal is carried out to the parse operation of rgb value, obtain R value matrix, G value matrix and B value matrix;
The R value matrix, G value matrix and the B value matrix that parse is poor with the R value matrix of design drawing, G value matrix and B value matrix respectively, and the threshold value making difference and setting is compared;
Based on the image of comparative result display video signal and the comparison result of design drawing of threshold value.
9. inter-vehicle information system testboard bay image comparison method according to claim 8, it is characterized in that, in comparison process, if R value matrix, G value matrix and B value matrix make difference be all less than corresponding threshold value, then image comparison result is qualified, otherwise comparison result failure.
10. inter-vehicle information system testboard bay image comparison method according to claim 8, is characterized in that, also comprise the setting procedure of the deviate to threshold value.
11. inter-vehicle information system testboard bay image comparison methods according to claim 10, it is characterized in that, in the step of display comparison result, actual threshold is obtained after the threshold value of setting being deducted the deviate of threshold value, if R value matrix, G value matrix and B value matrix make difference be all less than corresponding actual threshold, then image comparison result is qualified, otherwise comparison result failure.
12. inter-vehicle information system testboard bay image comparison methods according to any one of claim 9 or 11, is characterized in that, show overflow a little when comparison result failure.
13. inter-vehicle information system testboard bay image comparison methods according to claim 12, it is characterized in that, the Show Color overflowed a little can set.
14. inter-vehicle information system testboard bay image comparison methods according to claim 8, is characterized in that, resolve one by one to each pixel in the image of vision signal.
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| CN105357516B (en) | 2018-05-22 |
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