CN111510714B - Reproduction rate determination method, reproduction rate determination device, terminal and storage medium - Google Patents
Reproduction rate determination method, reproduction rate determination device, terminal and storage medium Download PDFInfo
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Abstract
The invention discloses a reproduction rate determination method, a reproduction rate determination device, a terminal and a storage medium. The method comprises the following steps: acquiring an image signal to be detected fed back by display equipment to be detected, obtaining an image to be detected, and obtaining a resample image for resampling the image to be detected; acquiring a pre-stored reference image corresponding to the image to be detected, and determining an overlapping area image of each re-sampling image from the reference image; and determining the reproduction rate of the display equipment to be tested according to the similarity of each resampled image and the corresponding overlapping area image. The method realizes the automatic determination of the reproduction rate, and effectively solves the problems of low efficiency and poor precision caused by manually determining the reproduction rate.
Description
Technical Field
The embodiment of the invention relates to the technical field of image testing, in particular to a reproduction rate determination method, a reproduction rate determination device, a reproduction rate determination terminal and a storage medium.
Background
The reproduction ratio is an important index for television image test, and is the ratio of the image displayed on the television screen to the image transmitted by the television station, including the vertical reproduction ratio and the horizontal reproduction ratio.
Because different television signals require different reproduction rates for display and the television also has different reproduction rate requirements, the test and debugging reproduction rate becomes a frequent work with high repetition rate. In the prior art, an image with a specific scale mark is mainly input into a television, and the scale on a fixed picture of a screen is manually read to determine the reproduction rate. This method not only takes a lot of time and effort, but also is inefficient and less accurate.
Disclosure of Invention
The embodiment of the invention provides a reproduction rate determination method, a reproduction rate determination device, a terminal and a storage medium, and solves the problems of low efficiency and poor precision caused by manual determination of the reproduction rate in the prior art.
In a first aspect, an embodiment of the present invention provides a method for determining a reproduction ratio, including:
acquiring an image signal to be detected fed back by display equipment to be detected, obtaining an image to be detected, and obtaining a resample image for resampling the image to be detected;
acquiring a pre-stored reference image corresponding to the image to be detected, and determining an overlapping area image of each re-sampling image from the reference image;
and determining the reproduction rate of the display equipment to be tested according to the similarity of each resampled image and the corresponding overlapping area image.
In a second aspect, an embodiment of the present invention further provides a reproduction ratio determining apparatus, including:
the resampling image determining module is used for acquiring an image signal to be detected fed back by the display equipment to be detected, obtaining an image to be detected and obtaining a resampling image for resampling the image to be detected;
the overlapping area image determining module is used for acquiring a pre-stored reference image corresponding to the image to be detected and determining an overlapping area image of each re-sampling image from the reference image;
and the reproduction rate determining module is used for determining the reproduction rate of the display equipment to be tested according to the similarity of each resampled image and the corresponding overlapping area image.
In a third aspect, an embodiment of the present invention further provides a terminal, including:
one or more processors;
a memory for storing one or more programs;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the reproduction rate determination method as described in the first aspect.
In a fourth aspect, an embodiment of the present invention further provides a storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the reproduction rate determination method according to the first aspect.
The embodiment of the invention provides a method, a device, a terminal and a storage medium for determining a reproduction rate, wherein an image to be detected is obtained by collecting an image signal to be detected fed back by a display device to be detected, and a resample image for resampling the image to be detected is obtained; acquiring a pre-stored reference image corresponding to the image to be detected, and determining an overlapping area image of each re-sampling image from the reference image; and determining the reproduction rate of the display equipment to be tested according to the similarity of each resampled image and the corresponding overlapping area image. According to the technical scheme, the resampled image is obtained through the image to be detected, the overlapping area image of the resampled image is obtained according to the reference image and the resampled image, the reproduction rate of the display equipment to be detected is determined according to the similarity of the resampled image and the corresponding overlapping area image, the automatic determination of the reproduction rate is achieved, and the problems of low efficiency and poor precision caused by the fact that the reproduction rate is determined manually are effectively solved.
Drawings
Fig. 1 is a flowchart of a method for determining a reproduction ratio according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating an image of an overlap area according to an embodiment of the present invention;
FIG. 3 is a flowchart of a reproduction rate determination method according to a second embodiment of the present invention;
fig. 4 is a structural diagram of a reproduction ratio determining apparatus according to a third embodiment of the present invention;
fig. 5 is a structural diagram of a terminal according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. In addition, the embodiments and features of the embodiments in the present invention may be combined with each other without conflict.
Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like. In addition, the embodiments and features of the embodiments in the present invention may be combined with each other without conflict.
Example one
Fig. 1 is a flowchart of a method for determining a reproduction ratio according to an embodiment of the present invention, where the method is applicable to determining a reproduction ratio of a display device, where the display device may be a device with an image display function, such as a television, a computer, or the like. The method may be performed by a reproduction ratio determination apparatus, which may be implemented by software and/or hardware, and may be integrated in a terminal. The terminal can be a device with a control function, such as a desktop computer, a notebook computer, an intelligent interactive tablet and the like. Referring to fig. 1, the method may include the steps of:
s110, collecting an image signal to be detected fed back by the display equipment to be detected, obtaining an image to be detected, and obtaining a resampling image for resampling the image to be detected.
The display device to be tested can be a device with an image display function, such as a television, a computer and the like. The image signal to be detected is an image signal for generating an image to be detected, and can be obtained by processing the received reference image signal by the display device to be detected. The reference image signal is an image signal corresponding to a reference image, and the reference image is a standard image or a reference image of the image to be measured. The reference image signal may be generated by a signal source generator from a pre-configured reference image and then transmitted to the display device under test. Or the signal source generator can be used for generating the signal source according to the control of a computer, an intelligent interactive panel and other terminals and then sending the signal source to the display equipment to be tested. The image signal to be detected is collected before the image signal to be detected is displayed on the display screen by the display equipment to be detected, the image to be detected is generated through the image generation instruction, and compared with the image displayed on the display screen which is directly obtained and used as the image to be detected, the image to be detected is effectively prevented from being influenced by the display screen, and the precision of the image to be detected is improved.
The resample image is an image obtained by performing a series of resampling on an image to be detected. For example, the image to be measured may be resampled according to a certain scaling ratio to obtain a resampled image. The amount of scaling and the step size can be customized, for example, the scaling can be increased from 93% to 100%, and the step size is 1%. The resolution of the image to be measured can also be changed to obtain a resampled image.
S120, obtaining a pre-stored reference image corresponding to the image to be detected, and determining an overlapping area image of each re-sampling image from the reference image.
The overlap region image is a portion of the reference image that overlaps the resampled image region. Before determining the image of the overlapping area, a reference point can be preset, and the overlapping area of the reference image and the resample image is obtained by taking the reference point as a reference, so that the image of the overlapping area is obtained. The reference point may be selected from the reference image or the resampled image. For example, the center of the reference image may be set as the reference point, the center of the reference image may be coincident with the center of the resampled image, and the region of the reference image that is coincident with the resampled image may be set as the overlap region image. The overlap region image and the corresponding resampled image are the same size. The overlap region images corresponding to different resampled images are different.
Exemplarily, referring to fig. 2, fig. 2 is a schematic diagram illustrating an image of an overlap area according to an embodiment of the present invention, where an image a is a reference image, an image B is a resample image corresponding to an image to be measured, a point O is a center of the reference image and the resample image, and a shadow portion is an image of the overlap area.
S130, determining the reproduction rate of the display equipment to be tested according to the similarity of each resampled image and the corresponding overlapping area image.
The similarity of the images is generally the degree of similarity between the two images, and the higher the similarity, the closer the two images are. In this step, the similarity between the resampled image and the corresponding image in the overlap area is the similarity between the resampled image and the corresponding image in the overlap area. The Similarity of the resampled image and the corresponding overlap area image may be determined by Similarity algorithms including, but not limited to, perceptual hash algorithms, Structural Similarity Index (SSIM) algorithms, cosine Similarity algorithms, and histogram algorithms.
The reproduction ratio is the ratio of the image displayed by the display device to be tested to the reference image, and comprises a horizontal reproduction ratio and a vertical reproduction ratio. Optionally, the horizontal reproduction rate of the display device to be tested may be determined according to a ratio of the number of standard pixels actually displayed horizontally by the display device to be tested to the total number of horizontal standard pixels. For example, if the total number of the horizontal standard image pixel points is 720, and the standard image pixel points actually displayed by the display device to be tested are 680, the horizontal reproduction rate is 680/720, and this method needs to rely on the standard image. The reproduction ratio of the corresponding direction can also be determined according to the boundary base color value of the image to be measured, the mode is related to the selected base color, and the process is complex.
The step determines the reproduction rate of the display equipment to be tested according to the similarity of the resampled image and the corresponding image in the overlapping area without depending on a standard image and a base color, thereby improving the determination efficiency and accuracy of the reproduction rate. Optionally, a scaling corresponding to the resampled image with the largest similarity may be determined, and the reproduction rate of the display device to be tested is determined according to the scaling.
The embodiment of the invention provides a method for determining a reproduction rate, which comprises the steps of acquiring an image signal to be detected fed back by a display device to be detected, obtaining an image to be detected, and obtaining a resample image for resampling the image to be detected; acquiring a pre-stored reference image corresponding to the image to be detected, and determining an overlapping area image of each re-sampling image from the reference image; and determining the reproduction rate of the display equipment to be tested according to the similarity of each resampled image and the corresponding overlapping area image. By the method, the automatic test of the reproduction rate is realized, and the problems of low efficiency and poor precision caused by manually determining the reproduction rate are effectively solved.
Example two
Fig. 3 is a flowchart of a reproduction ratio determination method according to a second embodiment of the present invention, which is embodied on the basis of the second embodiment. In this embodiment, the obtaining of the resampled image for resampling the image to be measured is embodied as: and resampling is carried out on the image to be detected according to at least one preset scaling ratio, and resampling images corresponding to the preset scaling ratios are obtained. Meanwhile, the embodiment further determines each of the images of the resampled image overlap areas from the reference image, and the determination is implemented as follows: for each resampled image, determining an overlapping area of the resampled image from the reference image by taking the center of the reference image as a reference; and recording the overlapping area as an overlapping area image of the resampled image. In addition, in this embodiment, the rate of reproduction of the display device to be detected is determined according to the similarity between each resampled image and the corresponding image in the overlap area, and is specifically: determining a similarity value between each of the resampled images and the corresponding overlapping area image; and determining the scaling corresponding to the resampled image with the maximum similarity value as the reproduction rate of the display equipment to be tested.
As shown in fig. 3, a second embodiment of the present invention provides a reproduction ratio determining method, including the following steps:
s210, collecting an image signal to be detected fed back by the display equipment to be detected to obtain an image to be detected.
S220, resampling is carried out on the image to be detected according to at least one preset scaling ratio, and resampling images corresponding to the preset scaling ratios are obtained.
The resampling of the image to be measured is to perform scaling processing on the image to be measured according to a preset scaling ratio, so as to obtain a scaled image, which is used as a resample image, where the size and the number of the preset scaling ratio may be set according to a situation, and in this embodiment, 93% to 100% and the step length is 1% are taken as examples. In one example, the width and height of the image under test may be scaled simultaneously and equally, for example, the width and height of the image under test may be simultaneously enlarged from 93% to 100%, resulting in 8 resampled images. In another example, one side may be controlled to be fixed by a constant ratio, and the other side is controlled to be scaled according to a preset ratio until reaching a preset maximum ratio, and then one side continues to cycle the next ratio in turn until the one side also reaches the preset maximum ratio. For example, the width of the image to be detected may be kept unchanged at 93%, then the height is amplified according to the length of 1% from 93% to 100%, when the height of the image to be detected is amplified to 100%, the width of the image to be detected is increased gradually, the width of the image to be detected is kept unchanged at 94%, then the height of the image to be detected is sequentially amplified, and so on, until the width and the height of the image to be detected both reach 100%, and in this case, 64 resample images can be obtained. Compared with the simultaneous and proportional scaling of the width and height of the image to be measured, the method can improve the accuracy of the reproduction rate.
And S230, acquiring a pre-stored reference image corresponding to the image to be detected.
And S240, determining an overlapping area of the resampled images from the reference image by taking the center of the reference image as a reference for each resampled image.
The overlap region is a portion where the reference image and the resampled image region overlap. In one example, this step selects the center of the reference image as a reference, and determines the overlapping area of the resampled images in the reference image.
And S250, recording the overlapping area as an overlapping area image of the resampled image.
For example, the center of the resampled image and the center of the reference image may be aligned, and the overlapping area of the reference image and the resampled image may be used as the overlapping area image of the resampled image. Each resampled image corresponds to a unique overlap area image and the resampled images and the corresponding overlap area images are the same size.
And S260, determining the similarity value of each resampled image and the corresponding overlapping area image.
The similarity value between the resampled image and the corresponding image in the overlap area may be determined based on a similarity algorithm, which is not limited in this embodiment. Optionally, after determining the similarity value between each resampled image and the corresponding overlap area image based on the similarity algorithm, the similarity value and the scaling of the width and the height of the corresponding resampled image may be stored in the similarity array in an associated manner, so as to facilitate searching for the scaling of the corresponding resampled image based on the similarity value at a later stage.
And S270, determining the scaling corresponding to the resampled image with the maximum similarity value as the reproduction rate of the display equipment to be tested.
The higher the similarity between the resampled image and the corresponding image in the overlap area is, the higher the accuracy is when determining the reproduction rate of the display device to be tested based on the scaling of the resampled image, and therefore, the reproduction rate of the display device to be tested can be determined based on the scaling corresponding to the resampled image with the largest similarity value. For example, the similarity array may be searched, the scaling ratios of the width and the height of the resampled image when the similarity value is maximum are obtained, and the reproduction rate of the display device to be tested is determined according to the scaling ratios of the width and the height.
The second embodiment of the invention provides a reproduction rate determination method, which embodies the determination process of the resampled image and the image in the overlapping area and the determination process of the reproduction rate based on the resampled image and the image in the corresponding overlapping area, reduces the calculation amount and improves the determination efficiency and the accuracy of the reproduction rate.
Further, the determining a scaling corresponding to the resampled image with the largest similarity value as the reproduction rate of the display device to be tested includes:
taking the transverse scaling corresponding to the resampled image with the maximum similarity value as the horizontal reproduction rate of the display equipment to be detected;
and taking the longitudinal scaling corresponding to the resampled image with the maximum similarity value as the vertical reproduction rate of the display equipment to be tested.
The rendition rate includes a horizontal rendition rate that may be determined based on a horizontal scaling of the resampled image and a vertical rendition rate that may be determined based on a vertical scaling of the resampled image. In this embodiment, the horizontal scaling of the resampled image with the largest similarity value is determined as the horizontal reproduction rate of the display device to be tested, and the vertical scaling of the resampled image with the largest similarity value is determined as the vertical reproduction rate of the display device to be tested. For example, if the horizontal scaling of the resampled image with the largest similarity value is 95% and the vertical scaling is 97%, the horizontal reproduction rate of the display device under test is 95% and the vertical reproduction rate is 97%.
Further, the display device to be tested comprises a television.
The display device to be tested in this embodiment is exemplified by a television, and may be, for example, a digital television, an analog television, a liquid crystal television, or the like, and may also be other devices with an image display function, such as a computer.
Further, before acquiring an image signal to be detected fed back by the display device to be detected and obtaining an image to be detected, the method further comprises:
and controlling a signal source generator to send a reference image signal to the display equipment to be detected so that the display equipment to be detected generates the image signal to be detected according to the reference image signal.
The signal source generator may be a device having a signal generation function, and in this embodiment, the signal source generator generates a reference image signal and displays the reference image signal by the display device to be tested, where the signal source generator may generate a corresponding reference image signal based on a pre-stored reference image, or may generate the reference image signal according to a signal generation instruction sent by another terminal. In this embodiment, the reference image signal is sent to the display device to be tested by the other terminal control signal source generator as an example. The display equipment to be tested processes the received reference image signal to obtain an image signal to be tested, and feeds the image signal to other terminals, so that the other terminals can automatically determine the reproduction rate of the display equipment to be tested based on the received image signal to be tested. The other terminal may be a device with control functions, such as a computer.
EXAMPLE III
Fig. 4 is a structural diagram of a reproduction ratio determining apparatus according to a third embodiment of the present invention, which can be applied to determine a reproduction ratio of a display device, and solve the problems of low efficiency and poor accuracy caused by manually determining the reproduction ratio in the prior art. The device can be realized by software and/or hardware, and can be integrated in a computer, an intelligent interactive tablet and other terminals.
As shown in fig. 4, the apparatus includes: the resampling image determining module 31 is configured to acquire an image signal to be detected fed back by a display device to be detected, obtain an image to be detected, and obtain a resampling image obtained by resampling the image to be detected; an overlap region image determining module 32, configured to obtain a reference image that is pre-stored and corresponds to the image to be detected, and determine an overlap region image of each resampled image from the reference image; and a reproduction ratio determining module 33, configured to determine a reproduction ratio of the display device to be tested according to the similarity between each resampled image and the corresponding image in the overlap area.
The device for determining the reproduction rate acquires an image signal to be detected fed back by a display device to be detected through a resampling image determining module, obtains an image to be detected, acquires a resampling image for resampling the image to be detected, acquires a pre-stored reference image corresponding to the image to be detected through an overlapping area image determining module, determines each overlapping area image of the resampling image in the reference image, determines the reproduction rate of the display device to be detected through a reproduction rate determining module according to the similarity of each resampling image and the corresponding overlapping area image, realizes automatic determination of the reproduction rate, and effectively solves the problems of low efficiency and poor precision caused by manual determination of the reproduction rate.
On the basis of the foregoing embodiment, the resampled image determining module 31 is specifically configured to:
and resampling is carried out on the image to be detected according to at least one preset scaling ratio, and resampling images corresponding to the preset scaling ratios are obtained.
On the basis of the foregoing embodiment, the overlap area image determining module 32 is specifically configured to:
for each resampled image, determining an overlapping area of the resampled image from the reference image by taking the center of the reference image as a reference;
and recording the overlapping area as an overlapping area image of the resampled image.
On the basis of the above embodiment, the reproduction ratio determining module 33 includes:
a similarity value determination unit for determining a similarity value between each of the resampled images and the corresponding overlap area image;
and the reproduction rate determining unit is used for determining the scaling corresponding to the resampled image with the maximum similarity value as the reproduction rate of the display equipment to be tested.
On the basis of the foregoing embodiment, the reproduction ratio determining unit is specifically configured to:
taking the transverse scaling corresponding to the resampled image with the maximum similarity value as the horizontal reproduction rate of the display equipment to be detected;
and taking the longitudinal scaling corresponding to the resampled image with the maximum similarity value as the vertical reproduction rate of the display equipment to be tested.
On the basis of the above embodiment, the display device to be tested includes a television.
On the basis of the above embodiment, the apparatus further includes a control module, configured to control the signal source generator to send a reference image signal to the display device to be detected before acquiring the image signal to be detected fed back by the display device to be detected to obtain the image to be detected, so that the display device to be detected generates the image signal to be detected according to the reference image signal.
The reproduction ratio determining apparatus provided by this embodiment may be used to execute the reproduction ratio determining method provided by the foregoing embodiment, and has corresponding functions and advantages.
Example four
Fig. 5 is a structural diagram of a terminal according to a fourth embodiment of the present invention, as shown in fig. 5, the terminal according to the fourth embodiment of the present invention includes one or more processors 41 and a memory 42, where the processor 41 in the terminal may be one or more, and fig. 5 illustrates one processor 41 as an example; the memory 42 is used to store one or more programs; the one or more programs are executed by the one or more processors 41 to cause the one or more processors 41 to implement the reproduction ratio determination method according to any one of the embodiments of the present invention.
The processor 41 and the memory 42 in the terminal may be connected by a bus or other means, and the connection by the bus is exemplified in fig. 5.
The memory 42 in the terminal serves as a computer-readable storage medium for storing one or more programs, which may be software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the reproduction rate determination method provided in one or both of the embodiments of the present invention (for example, the modules in the reproduction rate determination apparatus shown in fig. 4, including the resampled image determination module 31, the overlap area image determination module 32, and the reproduction rate determination module 33). The processor 41 executes various functional applications of the terminal and data processing by running software programs, instructions, and modules stored in the memory 42, that is, implements the reproduction ratio determination method in the above-described method embodiment.
The memory 42 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 42 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
And, when the one or more programs included in the above-mentioned terminal are executed by the one or more processors 41, the programs perform the following operations:
acquiring an image signal to be detected fed back by display equipment to be detected, obtaining an image to be detected, and obtaining a resample image for resampling the image to be detected;
acquiring a pre-stored reference image corresponding to the image to be detected, and determining an overlapping area image of each re-sampling image from the reference image;
and determining the reproduction rate of the display equipment to be tested according to the similarity of each resampled image and the corresponding overlapping area image.
EXAMPLE five
An embodiment of the present invention provides a storage medium, on which a computer program is stored, where the computer program is used to execute a reproduction rate determination method when executed by a processor, and the method includes:
acquiring an image signal to be detected fed back by display equipment to be detected, obtaining an image to be detected, and obtaining a resample image for resampling the image to be detected;
acquiring a pre-stored reference image corresponding to the image to be detected, and determining an overlapping area image of each re-sampling image from the reference image;
and determining the reproduction rate of the display equipment to be tested according to the similarity of each resampled image and the corresponding overlapping area image.
Optionally, the program, when executed by the processor, may be further configured to perform a reproduction rate determination method provided in any of the embodiments of the present invention.
Storage media for embodiments of the present invention may take the form of any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may include, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read Only Memory (ROM), an Erasable Programmable Read Only Memory (EPROM), a flash Memory, an optical fiber, a portable CD-ROM, an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. A computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take a variety of forms, including, but not limited to: an electromagnetic signal, an optical signal, or any suitable combination of the foregoing. A computer readable signal medium may be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, Radio Frequency (RF), etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in some detail by the above embodiments, the invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the invention, and the scope of the invention is determined by the scope of the appended claims.
Claims (9)
1. A reproduction ratio determination method, comprising:
acquiring an image signal to be detected fed back by display equipment to be detected, obtaining an image to be detected, and obtaining a resample image for resampling the image to be detected;
acquiring a pre-stored reference image corresponding to the image to be detected, and determining an overlapping area image of each resampled image from the reference image, wherein the overlapping area image is a part of the reference image which is overlapped with a resampled image area;
and determining the scaling corresponding to the resampled image with the maximum similarity as the reproduction rate of the display equipment to be tested according to the similarity of each resampled image and the corresponding image in the overlapping area.
2. The method of claim 1, wherein obtaining a resampled image that resamples the image to be tested comprises:
and resampling is carried out on the image to be detected according to at least one preset scaling ratio, and resampling images corresponding to the preset scaling ratios are obtained.
3. The method of claim 1, wherein said determining each of said resampled image overlap area images from said reference image comprises:
for each resampled image, determining an overlapping area of the resampled image from the reference image by taking the center of the reference image as a reference;
and recording the overlapping area as an overlapping area image of the resampled image.
4. The method according to claim 1, wherein the determining the scaling corresponding to the resampled image with the largest similarity value as the reproduction rate of the display device under test comprises:
taking the transverse scaling corresponding to the resampled image with the maximum similarity as the horizontal reproduction rate of the display equipment to be detected;
and taking the longitudinal scaling corresponding to the resampled image with the maximum similarity as the vertical reproduction rate of the display equipment to be tested.
5. The method of any of claims 1-4, wherein the display device under test comprises a television.
6. The method according to any one of claims 1 to 4, wherein before acquiring the image signal to be tested fed back by the display device to be tested to obtain the image to be tested, the method further comprises:
and controlling a signal source generator to send a reference image signal to the display equipment to be detected so that the display equipment to be detected generates the image signal to be detected according to the reference image signal.
7. A reproduction ratio determination apparatus, comprising:
the resampling image determining module is used for acquiring an image signal to be detected fed back by the display equipment to be detected, obtaining an image to be detected and obtaining a resampling image for resampling the image to be detected;
the overlapping area image determining module is used for acquiring a pre-stored reference image corresponding to the image to be detected and determining an overlapping area image of each resampled image from the reference image, wherein the overlapping area image is a part of the reference image, which is overlapped with a resampled image area;
and the reproduction rate determining module is used for determining the scaling corresponding to the resampled image with the maximum similarity as the reproduction rate of the display equipment to be tested according to the similarity of each resampled image and the corresponding overlapping area image.
8. A terminal, comprising:
one or more processors;
a memory for storing one or more programs;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the reproduction rate determination method of any of claims 1-6.
9. A storage medium on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the reproduction rate determination method according to any one of claims 1 to 6.
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| CN103037241A (en) * | 2012-12-20 | 2013-04-10 | 广州视源电子科技股份有限公司 | Automatic test system of reproduction rate |
| CN106792084A (en) * | 2016-12-09 | 2017-05-31 | 广州视源电子科技股份有限公司 | Television signal display parameter adjusting method and device and television signal display method |
| CN110602490A (en) * | 2019-08-30 | 2019-12-20 | 深圳Tcl新技术有限公司 | Method and device for automatically testing reproduction rate and readable storage medium |
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| KR101443654B1 (en) * | 2013-06-14 | 2014-09-26 | (주)이즈미디어 | Focus adjusting device of camera module and Focus adjusting methods using the same |
| US9697595B2 (en) * | 2014-11-26 | 2017-07-04 | Adobe Systems Incorporated | Content aware fill based on similar images |
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| CN103037241A (en) * | 2012-12-20 | 2013-04-10 | 广州视源电子科技股份有限公司 | Automatic test system of reproduction rate |
| CN106792084A (en) * | 2016-12-09 | 2017-05-31 | 广州视源电子科技股份有限公司 | Television signal display parameter adjusting method and device and television signal display method |
| CN110602490A (en) * | 2019-08-30 | 2019-12-20 | 深圳Tcl新技术有限公司 | Method and device for automatically testing reproduction rate and readable storage medium |
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