CN113873232A - Video jamming detection method, device, system and storage medium - Google Patents
Video jamming detection method, device, system and storage medium Download PDFInfo
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Abstract
The invention relates to a video stuck detection method, which comprises the following steps: acquiring image information of target equipment in a detection time period, wherein the termination time of the detection time period is the current time; obtaining a neighbor similarity value by using a structural similarity algorithm (SSIM) and image information respectively acquired at the current moment and the previous moment; obtaining an average similarity value of the acquired images in a detection time period by using the SSIM and the image information; and judging whether the target equipment is blocked by the video within the detection time period according to the neighbor similarity value, the average similarity value, the neighbor similarity threshold and the average similarity threshold. According to the invention, by monitoring the video picture of the screen of the target device in the detection time period and utilizing the structural similarity algorithm, whether video jamming occurs or not is automatically judged, the testing efficiency is improved, and the labor cost is saved. The invention also relates to a video blockage detection device, a video blockage detection system and a storage medium.
Description
Technical Field
The present invention relates to the field of electronic technologies, and in particular, to a method, an apparatus, a system, and a storage medium for detecting video stuck.
Background
When a video is watched on the intelligent device, sometimes, a video pause phenomenon occurs due to reasons such as insufficient network bandwidth or poor hardware performance, and the like, and the user experience is influenced by the video pause phenomenon. Currently, when a technician is optimizing video checkpoints, the optimization effect of video checkpoints is evaluated by a special tester watching videos for a long time and counting the times and time points of video checkpoints, but the evaluation mode is inefficient and consumes huge manpower cost.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a method, a device, a system and a storage medium for detecting video jamming.
The technical scheme for solving the technical problems is as follows:
a method of video stuck detection, the method comprising:
acquiring image information of target equipment in a detection time period, wherein the termination time of the detection time period is the current time;
obtaining a neighbor similarity value by using a structural similarity algorithm (SSIM) and image information respectively acquired at the current moment and the previous moment;
obtaining an average similarity value of the acquired images in the detection time period by using the SSIM and the image information;
and judging whether the target equipment is subjected to video blockage within the detection time period according to the neighbor similarity value, the average similarity value, a neighbor similarity threshold value and an average similarity threshold value.
The invention has the beneficial effects that: the method comprises the steps of obtaining a neighbor similarity value and a mean similarity value through the obtained image information of the target device in a detection time period and a structural similarity calculation method, and judging whether video jamming occurs in the target device in the detection time period according to the neighbor similarity value, the mean similarity value, a neighbor similarity threshold value and the mean similarity threshold value.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the obtaining of the average similarity of the images acquired in the detection time period by using the structural similarity algorithm and the image information specifically includes:
obtaining a detection point every time a preset step length is pushed backwards from the current moment, and obtaining a plurality of detection points in the detection time period, wherein the detection time period comprises a preset number of sampling time points, and the preset step length is the duration of one or more sampling time points;
calculating the structural similarity value of the image information acquired by each detection point and the image information acquired at the current moment by using a structural similarity algorithm;
and obtaining the average similarity value of the collected images in the detection time period according to all the structure similarity values.
The beneficial effect of adopting the further scheme is that: the average similarity value of the images acquired in the detection time period is more accurate to judge whether the video pause phenomenon occurs.
Further, the determining, according to the neighbor similarity, the average similarity, a neighbor similarity threshold, and an average similarity threshold, whether the target device is video stuck within the detection time period specifically includes:
when the neighbor similarity is greater than the neighbor similarity threshold and the average similarity is greater than the average similarity threshold, determining that video jamming occurs in the target device within the detection time period;
otherwise, judging that the target equipment does not have video jamming in the detection time period.
The beneficial effect of adopting the further scheme is that: the method for judging whether the target equipment is blocked by the video within the detection time period through the neighbor similarity, the average similarity, the neighbor similarity threshold and the average similarity threshold is more accurate in judging the video blockage phenomenon, and the missing judgment and the erroneous judgment are reduced.
Another technical solution of the present invention for solving the above technical problems is as follows:
a video stuck detection apparatus, the apparatus comprising:
the device comprises an acquisition module, a detection module and a processing module, wherein the acquisition module is used for acquiring the acquired image information of target equipment in a detection time period, the detection time period comprises a preset number of sampling moments, and the termination moment of the detection time period is the current moment;
the calculation module is used for obtaining a neighbor similarity value by utilizing a structural similarity algorithm (SSIM) and the image information respectively acquired at the current moment and the previous moment;
obtaining the average similarity of the collected images in the detection time period by using a structural similarity algorithm and the image information;
and the judging module is used for judging whether the target equipment is blocked by the video within the detection time period according to the neighbor similarity, the average similarity, the neighbor similarity threshold and the average similarity threshold.
The invention has the beneficial effects that: the video stuck detection device comprises an acquisition module, a calculation module and a judgment module, wherein a neighbor similarity value and a mean similarity value are obtained according to acquired image information of target equipment in a detection time period and a structural similarity calculation method, whether video stuck occurs to the target equipment in the detection time period is judged according to the neighbor similarity value, the mean similarity value, a neighbor similarity threshold value and the mean similarity threshold value, a video picture of a screen of the target equipment in the detection time period is monitored, and the structural similarity calculation method is utilized, so that whether video stuck occurs is automatically judged, the test efficiency is improved, and the labor cost is saved.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the calculation module is specifically configured to obtain a detection point every time a preset step length is pushed backward from the current time, and obtain a plurality of detection points in the detection time period, where the detection time period includes a preset number of sampling time points, and the preset step length is a duration of one or more sampling time points;
calculating the structural similarity value of the image information acquired at each detection point and the image information acquired at the current moment by using a structural similarity algorithm, wherein the preset time step is the duration of one or more sampling moments;
and obtaining the average similarity value of the collected images in the detection time period according to all the structure similarity values.
The beneficial effect of adopting the further scheme is that: the calculation module calculates the average similarity value of the images acquired in the detection time period, so that whether the video pause phenomenon occurs is judged more accurately.
Further, the determining module is specifically configured to determine that the target device is video stuck within the detection time period when the neighbor similarity value is greater than the neighbor similarity threshold and the average similarity value is greater than the average similarity threshold;
otherwise, judging that the target equipment is not subjected to video blockage in the detection time period.
The beneficial effect of adopting the further scheme is that: the judgment module judges whether the target equipment is blocked by the video within the detection time period through the neighbor similarity, the average similarity, the neighbor similarity threshold and the average similarity threshold, so that the video blocking phenomenon is more accurately judged, and the missing judgment and the erroneous judgment are reduced.
In addition, the invention provides a video stuck detection system, which comprises a camera device and a video stuck detection device according to any one of the above technical schemes;
the camera shooting equipment is connected with the video blockage detection device;
the camera shooting device is used for collecting image information of the target device in a detection time period.
The present invention also provides a computer-readable storage medium, comprising instructions which, when run on a computer, cause the computer to perform the steps of the video stuck detection method according to any one of the above technical solutions.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or in the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a video stuck detection method according to an embodiment of the present invention;
fig. 2 is a block diagram of a video stuck detection apparatus according to another embodiment of the present invention;
fig. 3 is a system structural diagram of a video stuck detection system according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
As shown in fig. 1, a schematic flow chart of a video stuck detection method according to an embodiment of the present invention is shown, where the video stuck detection method includes the following steps:
110. and acquiring image information of the target equipment in a detection time period.
It should be understood that the detection period includes a preset number of sampling time points, and the end time of the detection period is the current time.
120. And obtaining a neighbor similarity value by using a structural similarity algorithm (SSIM) and image information respectively acquired at the current moment and the previous moment.
130. And obtaining the average similarity of the acquired images in the detection time period by using the SSIM and the image information.
140. And judging whether the target equipment is blocked by the video within the detection time period according to the neighbor similarity, the average similarity, the neighbor similarity threshold and the average similarity threshold.
Based on the method for detecting video stuck in the embodiment, a neighbor similarity value and a mean similarity value are obtained through the obtained image information of the target device in a detection time period and a structural similarity calculation method, and whether video stuck occurs in the target device in the detection time period is judged according to the neighbor similarity value, the mean similarity value, a neighbor similarity threshold value and the mean similarity threshold value.
Further, step 130 specifically includes:
131. and obtaining a detection point every time a preset step length is pushed backwards from the current moment, and obtaining a plurality of detection points in a detection time period, wherein the detection time period comprises a preset number of sampling time points, and the preset step length is the duration of one or more sampling time points.
132. And calculating the structural similarity value of the image information acquired at each detection point and the image information acquired at the current moment by using a structural similarity calculation method.
133. And obtaining the average similarity value of the collected images in the detection time period according to all the structure similarity values.
Further, step 140 specifically includes:
141. when the neighbor similarity value is larger than the neighbor similarity threshold value and the average similarity value is larger than the average similarity threshold value, judging that the target equipment is blocked by the video within a detection time period;
142. otherwise, the target device is judged not to have video pause in the detection time period.
It should be understood that the structural Similarity ssim (structural Similarity index) is an index for measuring the Similarity between two images, and has been widely used in the field of image quality evaluation.
Specifically, for example, if the image information of the target device acquired at the current time T is x and the image information acquired at the previous time T-T is y, the neighboring similarity values S of the images acquired at the current time and the previous time are obtainedCur(Pt) Can be obtained according to the following formula:
wherein muxIs the average value of x, μyIs the average value of y and is,
is the variance of x and is,
is the variance of y, σxyIs the covariance of x and y, C1=(k1L)2 C2=(k2L)2Is a constant for maintaining stability, L is the dynamic range of pixel values, k1=0.01,k2=0.03, the value range of the neighbor similarity value is [0, 1%]When x and y are the same, the value of SSIM is 1.
Specifically, the image information of the target device acquired at the current time t is set to be Pt。
The length of the detection segment is defined as N, wherein N is a positive integer and is more than or equal to 2.
Mean similarity value Savg(Pt) Image information P acquired for the current time ttAnd t-kT (k is E [1, N ]]) Structural similarity averages between captured images at the moment, i.e.
When S isCur(Pt) > neighbor similarity threshold and Savg(Pt) When the average similarity threshold is higher than the average similarity threshold, the image acquired at the current moment is considered to be not only the same as the image acquired at the previous moment in subjective perception, but also highly similar to the images acquired at the past N sampling moments, that is, the video picture has no obvious change in subjective perception in the whole detection time period, namely, the video pause phenomenon occurs. In a typical application, let the neighbor similarity threshold take 0.9 and the average similarity threshold take 0.8.
As shown in fig. 2, a block diagram of a video stuck detection apparatus according to another embodiment of the present invention includes:
the device comprises an acquisition module, a detection module and a processing module, wherein the acquisition module is used for acquiring image information of target equipment in a detection time period, and the termination time of the detection time period is the current time;
the calculation module is used for obtaining a neighbor similarity value by utilizing a structural similarity algorithm (SSIM) and the image information respectively acquired at the current moment and the previous moment;
obtaining the average similarity of the collected images in the detection time period by using a structural similarity algorithm and the image information;
and the judging module is used for judging whether the target equipment is blocked by the video within the detection time period according to the neighbor similarity, the average similarity, the neighbor similarity threshold and the average similarity threshold.
The video stuck detection device comprises an acquisition module, a calculation module and a judgment module, wherein a neighbor similarity value and a mean similarity value are obtained according to acquired image information of target equipment in a detection time period and a structural similarity algorithm, whether video stuck occurs to the target equipment in the detection time period is judged according to the neighbor similarity value, the mean similarity value, the neighbor similarity threshold and the mean similarity threshold, and by monitoring a video picture of a screen of the target equipment in the detection time period and utilizing the structural similarity algorithm, whether video stuck occurs is automatically judged, the test efficiency is improved, and the labor cost is saved.
Further, the calculation module is specifically configured to obtain a detection point every time a preset step length is pushed backward from the current time, and obtain a plurality of detection points in the detection time period, where the detection time period includes a preset number of sampling time points, and the preset step length is a duration of one or more sampling time points;
calculating the structural similarity value of the image information acquired by each detection point and the image information acquired at the current moment by using a structural similarity algorithm;
and obtaining the average similarity value of the collected images in the detection time period according to all the structure similarity values.
Further, the determining module is specifically configured to determine that the target device is video stuck within the detection time period when the neighbor similarity value is greater than the neighbor similarity threshold and the average similarity value is greater than the average similarity threshold;
otherwise, judging that the target equipment is not subjected to video blockage in the detection time period.
Fig. 3 is a system structural diagram of a video stuck detection system according to another embodiment of the present invention, where the video stuck detection system includes an image capturing apparatus and a video stuck detection apparatus according to any one of the above technical solutions;
the camera shooting equipment is connected with the video blockage detection device;
the camera device collects image information of the target device in a detection time period.
The video blockage detection device obtains image information of target equipment in a detection time period, obtains a neighbor similarity value by utilizing a structural similarity algorithm (SSIM) and image information respectively collected at the current time and the previous time, obtains an average similarity value of images collected in the detection time period by utilizing the SSIM and the image information, and judges whether the target equipment is blocked by video in the detection time period according to the neighbor similarity value, the average similarity value, a neighbor similarity threshold value and the average similarity threshold value. Of course, the camera device may also start capturing after receiving a command for capturing image information sent by the video stuck detection apparatus.
For example, the camera is connected with the test station through a USB, receives an instruction from the test station, captures a video image of a screen of the device under test at a fixed time interval, and transmits the captured image back to the test station.
The present invention also provides a computer-readable storage medium, comprising instructions which, when run on a computer, cause the computer to perform the steps of the video stuck detection method according to any one of the above technical solutions.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for detecting video stuck, the method comprising:
acquiring image information of target equipment in a detection time period, wherein the detection time period comprises a plurality of detection points, and the termination time of the detection time period is the current time;
obtaining a neighbor similarity value by using a structural similarity algorithm and the image information respectively acquired at the current moment and the previous moment;
calculating the structural similarity value of the image information acquired at each detection point and the image information acquired at the current moment by using a structural similarity calculation method, and obtaining the average similarity value of the acquired images in the detection time period according to all the structural similarity values;
when the neighbor similarity value is larger than a neighbor similarity threshold value and the average similarity value is larger than an average similarity threshold value, determining that the target device is video-stuck within a detection time period.
2. The video stuck detection method of claim 1, wherein a detection point is obtained every predetermined step forward from said current time, and said plurality of detection points are obtained during said detection period.
3. The video stuck detection method according to claim 2, characterised in that the number of detection points is greater than or equal to 2.
4. The video stuck detection method according to any one of claims 1-3, characterised in that said neighbor similarity threshold is 0.9 and said average similarity threshold is 0.8.
5. A video stuck detection apparatus, said apparatus comprising:
the device comprises an acquisition module, a processing module and a display module, wherein the acquisition module is used for acquiring image information of target equipment in a detection time period, the detection time period comprises a plurality of detection points, and the termination time of the detection time period is the current time;
the calculation module is used for obtaining a neighbor similarity value by utilizing a structural similarity calculation method and the image information respectively acquired at the current moment and the previous moment; calculating the structural similarity value of the image information acquired at each detection point and the image information acquired at the current moment by using a structural similarity algorithm, and obtaining the average similarity value of the acquired images in the detection time period according to all the structural similarity values;
and the judging module is used for judging that the target equipment is blocked by the video within the detection time period when the neighbor similarity value is greater than the neighbor similarity threshold value and the average similarity value is greater than the average similarity threshold value.
6. The video stuck detection apparatus according to claim 5,
the calculation module is specifically configured to obtain one detection point every time a preset step length is pushed backward from the current time, and obtain the plurality of detection points within the detection time period.
7. The video stuck detection apparatus according to claim 6, wherein the number of detection points is greater than or equal to 2.
8. The video stuck detection apparatus according to any one of claims 5-7, characterised in that said neighbor similarity threshold is 0.9 and said average similarity threshold is 0.8.
9. A video stuck detection system, characterized by comprising a camera device and a video stuck detection apparatus according to any one of claims 5-8;
the camera shooting equipment is connected with the video blockage detection device;
the camera shooting device is used for collecting image information of the target device in a detection time period.
10. A computer-readable storage medium comprising instructions, characterized in that said instructions, when run on a computer, cause said computer to perform the steps of the video stuck detection method according to any one of claims 1-4.
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