CN114390275A - Method, device and system for testing image acquisition function of zero terminal - Google Patents
Method, device and system for testing image acquisition function of zero terminal Download PDFInfo
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Abstract
The application discloses a method, a device and a system for testing an image acquisition function of a zero terminal. Wherein, the method comprises the following steps: acquiring a test source image, and adding identification information in the test source image; acquiring a target image, wherein the target image is an image output after a test source image added with identification information is acquired through a zero terminal; comparing the test source image with the target image; and testing the image acquisition function of the zero terminal according to the comparison result. The method and the device solve the technical problems that the existing zero-terminal single-board function test system can only compare red, green and blue pure-color images, so that the quality of the collected images is tested, the test mode is single, and the test efficiency is low.
Description
Technical Field
The application relates to the field of zero terminals, in particular to a method, a device and a system for testing an image acquisition function of a zero terminal.
Background
The acquisition function in the single board function test system of the zero terminal hard S (transmitting end) is that three pure color screens of red, green and blue are alternately displayed on a tester according to a specific sequence and acquired by the hard S, and then the acquisition result is obtained by comparing the acquisition result with expected data. There are several problems:
1. because the whole testing system framework is open-loop, only pure color comparison can be carried out, otherwise, the information of the source can not be sensed, so that the acquisition result can not be compared (what content is displayed by the current source, and the current acquisition object is red through text interaction, for example, instruction transmission red, S knows that the current acquisition object is red, and pixel-by-pixel point comparison with RGB (255,0,0) can be directly carried out after acquisition to generate a result).
2. The information that the characters can express is quite limited, image source comparison of more types cannot be carried out (the result cannot be directly generated because no source end data exists inside the S side), and the testing machine cannot rapidly switch images and can only mechanically wait for proper time to switch images.
3. When meeting many equipment and testing simultaneously, at first need rob a test channel of token, submit present display content to wait S and accomplish the collection (latency is 2 ~ 5 seconds), this waste in time that causes:
(1) each test channel is displayed according to the sequence time of red, green and blue, and in the process of robbing a token, the content displayed last time is possibly the same as the content displayed in the current application, so that the efficiency is reduced;
(2) the token is a mechanism for avoiding synchronization of S-end acquisition and test machine display in a multipath parallel state, but each hard S is an independent individual and can be completely concurrent, and the token is wasted.
Aiming at the fact that a single-board function test system of the current zero terminal can only compare red, green and blue pure color images, the quality of the collected images is further tested, and the test mode is single; and the problem of low test efficiency, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the application provides a method, a device and a system for testing an image acquisition function of a zero terminal, and at least solves the technical problems that the existing single-board function test system of the zero terminal can only compare red, green and blue pure color images, so that the quality of the acquired images can be tested, the test mode is single, and the test efficiency is low.
According to an aspect of the embodiments of the present application, there is provided a method for testing an image capturing function of a zero terminal, including: acquiring a test source image, and adding identification information in the test source image; acquiring a target image, wherein the target image is an image output after a test source image added with identification information is acquired through a zero terminal; comparing the test source image with the target image; and testing the image acquisition function of the zero terminal according to the comparison result.
Optionally, the identification information corresponding to different test source images is different.
Optionally, adding identification information in the test source image, including: binary digits with preset digits are added to the test source image as identification information.
Optionally, a first digit of the preset-digit binary digits is used to represent a number of an acquisition channel for acquiring the test source image, a second digit of the preset-digit binary digits is used to represent a frame number of the test source image, and a sum of the first digit and the second digit is equal to the preset digit.
Optionally, before comparing the test source image with the target image, the method further includes: determining an acquisition channel corresponding to the target image according to the binary digits of the first digit; and determining a zero terminal corresponding to the acquisition channel.
Optionally, the testing the image capturing function of the zero terminal according to the comparison result includes: and determining the performance of the zero terminal acquisition image corresponding to the acquisition channel according to the comparison result.
Optionally, comparing the test source image with the target image further comprises obtaining at least one of the following comparison results: peak signal-to-noise ratio and structural similarity.
According to another aspect of the embodiments of the present application, there is also provided a device for testing an image capturing function of a zero terminal, including: the acquisition module is used for acquiring a test source image and adding identification information in the test source image; the acquisition module is used for acquiring a target image, wherein the target image is an image which is output after a test source image added with identification information is acquired through a zero terminal; the comparison module is used for comparing the test source image with the target image; and the test module is used for testing the image acquisition function of the zero terminal according to the comparison result.
According to another aspect of the embodiments of the present application, there is also provided a system for testing an image capturing function of a zero terminal, including: the system comprises host equipment, a plurality of zero terminals and a multi-path acquisition card, wherein the host equipment is used for outputting a plurality of paths of same test source images through a plurality of paths of display cards, and the multi-path display cards are display cards comprising a plurality of output ports; each zero terminal in the plurality of zero terminals is respectively connected with one output port in the multi-path display card and is used for collecting one path of test source images and outputting corresponding target images; the multi-path acquisition card is connected with the plurality of zero terminals and used for acquiring the target image output by each zero terminal and sending the target image to the host equipment; the host equipment is also used for executing the test method of the image acquisition function of the zero terminal.
According to another aspect of the embodiments of the present application, there is also provided a non-volatile storage medium, where the non-volatile storage medium includes a stored program, and when the program runs, the device in which the non-volatile storage medium is located is controlled to execute the above test method for the image capturing function of the zero terminal.
According to still another aspect of the embodiments of the present application, there is provided a processor configured to run a program stored in a memory, where the program performs the above method for testing the image capturing function of the zero terminal when running.
In the embodiment of the application, a test source image is obtained, and identification information is added in the test source image; acquiring a target image, wherein the target image is an image output after a test source image added with identification information is acquired through a zero terminal; comparing the test source image with the target image; according to the method for testing the image acquisition function of the zero terminal according to the comparison result, identification information is added in the test source image, the acquisition picture of the acquisition channel is screened according to the channel information marked in the identification information, so that the difference between the test source image and the acquired image is further compared, and the purpose of modifying the test source image from the original red, green and blue pure color image into an arbitrary test sequence image added with the identification information is achieved, thereby realizing the test mode of the single-board function test system added with the zero terminal and improving the technical effect of the test efficiency, further solving the technical problems that the existing single-board function test system of the zero terminal can only compare the red, green and blue pure color images, further testing the quality of the acquired image, and the test mode is single and the test efficiency is low.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a flow chart of a method for testing image capture function of a zero terminal according to an embodiment of the application;
FIG. 2 is a schematic diagram of a test source image according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a structure and implementation of a zero-terminal hard S multi-channel acquisition function evaluation system according to an embodiment of the present application;
FIG. 4 is a block diagram of a device for testing image capture function of a zero terminal according to an embodiment of the present application;
fig. 5 is a block diagram of a system for testing an image capturing function of a zero terminal according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
First, some terms or terms appearing in the description of the embodiments of the present application are applicable to the following explanations:
a zero terminal, a network computer without a CPU, a memory and a hard disk, can be used as a mini PC to independently operate and browse a webpage, and can also be used for constructing a shared computing network to develop a business operation network with innovative cost advantage.
In accordance with an embodiment of the present application, there is provided an embodiment of a method for testing image capture functionality of a terminal, it is noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions, and that while a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than here.
Fig. 1 is a flowchart of a method for testing an image capturing function of a zero terminal according to an embodiment of the present application, and as shown in fig. 1, the method includes the following steps:
step S102, obtaining a test source image, and adding identification information in the test source image;
as an alternative embodiment, in step S102, each frame of the test source image is watermarked according to the test requirements.
Step S104, collecting a target image, wherein the target image is an image which is output after the test source image added with the identification information is collected through a zero terminal;
in step S104, the zero terminal collects the test source images in parallel, and the collected images are looped back and output inside the zero terminal. And controlling a multi-path acquisition card to acquire a loopback output picture of the zero terminal.
Step S106, comparing the test source image with the target image;
and S108, testing the image acquisition function of the zero terminal according to the comparison result.
In this step, the difference between the test source image and the loopback output image of the acquisition zero terminal is compared, and then the image acquisition function of the zero terminal is determined.
Through the steps, the identification information is added in the test source image, and the acquisition picture of the acquisition channel is screened according to the channel information marked in the identification information, so that the difference between the test source image and the acquisition image is further compared, the aim of modifying the original red, green and blue pure color image into any test sequence image added with the identification information is fulfilled, the test mode of the single-board function test system with the zero terminal is realized, and the technical effect of improving the test efficiency is achieved.
According to an alternative embodiment of the present application, the identification information corresponding to different test source images is different.
According to another alternative embodiment of the present application, the step S102 of adding identification information in the test source image is performed by: binary digits with preset digits are added to the test source image as identification information.
As an alternative embodiment, a first binary digit of the binary digits of the preset number of digits is used to represent the number of the acquisition channel for acquiring the test source image, a second binary digit of the binary digits of the preset number of digits is used to represent the frame number of the test source image, and the sum of the first digit and the second digit is equal to the preset number of digits.
Fig. 2 is a schematic diagram of a test source image according to an embodiment of the present application, as shown in fig. 2,
in order to identify a frame of data, each frame of picture may be numbered (i.e., the above-mentioned identification information), and a frame may be identified from ID number 0, and accumulated step by step, ensuring that the ID number of each frame of picture is different from each other.
The ID number is identified in binary form by 8 blocks of 16 x 16 sized pixels (hereinafter referred to as small information blocks), each pixel block representing one bit, where the first two blocks represent the channel number and the last five blocks represent the frame number.
The first two blocks of pixels are represented in three primary colors and have 3 squares, i.e., 9 combinations, as a whole for representing channel information. Pixel blocks can be added if more channels are supported (hardware condition support); the latter 6 pixel blocks represent bit 0 and 1 respectively according to black and white, namely RGB (255 ) and RGB (0,0,0), the total 6 bits can represent 64 pictures, the bit bits can be increased arbitrarily according to the actual test requirement, and the 6 bits can be used enough considering the actual test efficiency.
The arithmetic mean value of all the pixel points in each 16-by-16 pixel block is greater than or less than half, namely, the arithmetic mean value represents the corresponding bit information 1 or 0 respectively. Such as: assuming the average value is RGB (254, 0, 1), 254 is greater than 128, then the value is 255, and 1 is less than 128 and 0.
In some optional embodiments of the present application, before the step S106 is executed to compare the test source image with the target image, an acquisition channel corresponding to the target image is determined according to the binary digits of the first digit; and determining a zero terminal corresponding to the acquisition channel.
In other optional embodiments of the present application, the image capturing function of the zero terminal is tested according to the comparison result, and the testing is implemented by: and determining the performance of the zero terminal acquisition image corresponding to the acquisition channel according to the comparison result.
As an alternative embodiment of the present application, comparing the test source image with the target image further comprises obtaining at least one of the following comparison results: peak signal-to-noise ratio and structural similarity.
Fig. 3 is a schematic diagram of a structure and an implementation of a zero-terminal hard S multi-channel acquisition function evaluation system according to an embodiment of the present application, and as shown in fig. 3, the system includes an evaluation host and a plurality of S-side devices (hard S) connected to a plurality of image output ports of the evaluation host, each S-side device includes an HDMI acquisition input port and an HDMI loopback output port, and a multi-channel acquisition card.
The evaluation host comprises a multi-path display card, wherein the multi-path display card is a display card with a plurality of output ports, generally comprises two paths, four paths, eight paths and the like, and is used for outputting multi-path same coded images, and each path of coded image is collected through a hard S and then directly returned through a loopback output port to be connected with a multi-path collection card.
Each acquisition channel is used for acquiring an image output by the S end loop, and the acquired image is used for comparing with a source image to obtain comparison results such as peak signal to noise ratio (PSNR), Structural Similarity (SSIM) and the like.
It should be noted that the peak signal-to-noise ratio (PSNR) and the Structural Similarity (SSIM) are used to evaluate the performance of zero-terminal acquired images.
The zero-terminal S multi-channel acquisition function evaluation method provided by the application at least has the following advantages:
and in the closed loop, the scheme that only red, green and blue pure color comparison can be performed and introduced in the original open loop mode is improved into the scheme that any complex image can be compared, so that not only is simple image quality comparison performed, but also indexes such as acquisition efficiency and the like can be compared.
The method has the advantages that the method is high in efficiency, the Token is removed, each testing channel does not use the Token to perform multi-channel mutual exclusion any more, and a complete broadcasting mode is adopted, so that the testing channels simultaneously acquire the same content, the channels are distinguished by acquiring the content, and the testing efficiency is improved.
Fig. 4 is a block diagram of a testing apparatus for testing an image capturing function of a terminal according to an embodiment of the present application, and as shown in fig. 4, the apparatus includes:
the acquisition module 40 is used for acquiring a test source image and adding identification information in the test source image;
the acquisition module 42 is configured to acquire a target image, where the target image is an image output after the test source image added with the identification information is acquired through a zero terminal;
a comparison module 44 for comparing the test source image with the target image;
and the test module 46 is used for testing the image acquisition function of the zero terminal according to the comparison result.
It should be noted that, reference may be made to the description related to the embodiment shown in fig. 1 for a preferred implementation of the embodiment shown in fig. 4, and details are not described here again.
Fig. 5 is a block diagram of a system for testing an image capturing function of a zero terminal according to an embodiment of the present application, and as shown in fig. 5, the system includes: a host device 50, a plurality of zero terminals 52, and a multiple-way acquisition card 54, wherein,
the host device 50 is configured to output multiple paths of identical test source images through multiple paths of graphics cards, where the multiple paths of graphics cards are graphics cards including multiple output ports;
each of the plurality of zero terminals 52 is connected to one output port of the multi-channel graphics card, and is configured to collect one channel of test source images and output a corresponding target image;
the multi-path acquisition card 54 is connected with the plurality of zero terminals 52 and is used for acquiring the target images output by the zero terminals 52 and sending the target images to the host device 50;
the host device 50 is also configured to execute the above method for testing the image capturing function of the zero terminal.
The system comprises an evaluation host and a plurality of S-end devices (hard S) connected with a plurality of image output ports of the evaluation host, wherein each S-end device comprises an HDMI acquisition input port, an HDMI loopback output port and a multi-path acquisition card.
The evaluation host comprises a multi-path display card, wherein the multi-path display card is a display card with a plurality of output ports, generally comprises two paths, four paths, eight paths and the like, and is used for outputting multi-path same coded images, and each path of coded image is collected through a hard S and then directly returned through a loopback output port to be connected with a multi-path collection card.
Each acquisition channel is used for acquiring an image output by the S end loop, and the acquired image is used for comparing with a source image to obtain comparison results such as peak signal to noise ratio (PSNR), Structural Similarity (SSIM) and the like.
The embodiment of the application also provides a nonvolatile storage medium, wherein the nonvolatile storage medium comprises a stored program, and when the program runs, the device where the nonvolatile storage medium is located is controlled to execute the above test method for the image acquisition function of the zero terminal.
The nonvolatile storage medium stores a program for executing the following functions: acquiring a test source image, and adding identification information in the test source image; acquiring a target image, wherein the target image is an image output after a test source image added with identification information is acquired through a zero terminal; comparing the test source image with the target image; and testing the image acquisition function of the zero terminal according to the comparison result.
The embodiment of the application also provides a processor, wherein the processor is used for running the program stored in the memory, and the program is used for executing the above method for testing the image acquisition function of the zero terminal during running.
The processor is used for running a program for executing the following functions: acquiring a test source image, and adding identification information in the test source image; acquiring a target image, wherein the target image is an image output after a test source image added with identification information is acquired through a zero terminal; comparing the test source image with the target image; and testing the image acquisition function of the zero terminal according to the comparison result.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (10)
1. A method for testing an image acquisition function of a zero terminal is characterized by comprising the following steps:
acquiring a test source image, and adding identification information in the test source image;
acquiring a target image, wherein the target image is an image output after the test source image added with the identification information is acquired through a zero terminal;
comparing the test source image with the target image;
and testing the image acquisition function of the zero terminal according to the comparison result.
2. The method according to claim 1, characterized in that the identification information for different ones of the test source images is different.
3. The method of claim 1, wherein adding identification information in the test source image comprises:
and adding binary digits with preset digits as the identification information into the test source image.
4. The method according to claim 3, characterized in that a first binary digit of the binary digits of the preset number of digits is used for representing the number of an acquisition channel for acquiring the test source image, a second binary digit of the binary digits of the preset number of digits is used for representing the frame number of the test source image, and the sum of the first digit and the second digit is equal to the preset number of digits.
5. The method of claim 4, wherein prior to comparing the test source image to the target image, the method further comprises:
determining an acquisition channel corresponding to the target image according to the binary digits of the first digit;
and determining a zero terminal corresponding to the acquisition channel.
6. The method of claim 5, wherein testing the image capture function of the zero terminal according to the comparison comprises:
and determining the performance of the zero terminal acquisition image corresponding to the acquisition channel according to the comparison result.
7. The method of any one of claims 1 to 6, wherein comparing the test source image to the target image further comprises obtaining a comparison result of at least one of: peak signal-to-noise ratio and structural similarity.
8. The utility model provides a test device of image acquisition function of zero terminal which characterized in that includes:
the acquisition module is used for acquiring a test source image and adding identification information in the test source image;
the acquisition module is used for acquiring a target image, wherein the target image is an image which is output after the test source image added with the identification information is acquired through a zero terminal;
a comparison module for comparing the test source image with the target image;
and the test module is used for testing the image acquisition function of the zero terminal according to the comparison result.
9. A test system for image capture functionality of a terminal, comprising: a host device, a plurality of zero terminals and a multi-path acquisition card, wherein,
the host equipment is used for outputting a plurality of paths of same test source images through a plurality of paths of display cards, and the plurality of paths of display cards are display cards comprising a plurality of output ports;
each zero terminal in the plurality of zero terminals is respectively connected with one output port in the multi-path display card and is used for collecting one path of the test source image and outputting a corresponding target image;
the multi-path acquisition card is connected with the plurality of zero terminals and is used for acquiring the target image output by each zero terminal and sending the target image to the host equipment;
the host device is further configured to execute the method for testing the image capturing function of the zero terminal according to any one of claims 1 to 7.
10. A non-volatile storage medium, characterized in that the non-volatile storage medium comprises a stored program, wherein when the program runs, a device where the non-volatile storage medium is located is controlled to execute the method for testing the image capturing function of the zero terminal according to any one of claims 1 to 7.
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| CN111464809A (en) * | 2020-04-08 | 2020-07-28 | 昆山丘钛微电子科技有限公司 | Data stability test circuit and test method of image acquisition card |
| CN112422956A (en) * | 2020-10-30 | 2021-02-26 | 西安万像电子科技有限公司 | Data testing system and method |
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