CN115190329A - Plug flow optimization method of data sample filtering comparison method for real-time video stream - Google Patents
Plug flow optimization method of data sample filtering comparison method for real-time video stream Download PDFInfo
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- CN115190329A CN115190329A CN202210748527.7A CN202210748527A CN115190329A CN 115190329 A CN115190329 A CN 115190329A CN 202210748527 A CN202210748527 A CN 202210748527A CN 115190329 A CN115190329 A CN 115190329A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000001914 filtration Methods 0.000 title claims abstract description 9
- 238000005457 optimization Methods 0.000 title abstract description 5
- 238000000605 extraction Methods 0.000 claims abstract description 19
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/23418—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
Abstract
The invention discloses a plug flow optimization method of a data sample filtering comparison method for real-time video stream, which comprises the following steps of 1: a selected policy for a time period; step 2, selecting video frame data in a time period to capture data samples; and 3, extracting video frame data from the real-time video frame data reported by the equipment according to a preset extraction strategy, comparing the extracted video frame data with the data sample, discarding the reported real-time video frame data if the similarity is greater than a preset value, and otherwise, processing the video frame data according to a normal plug flow process. The invention can realize the purposes of reducing CPU resources and memory resources of the central platform and pushing network resources.
Description
Technical Field
The invention discloses a video data processing method, and particularly relates to a plug flow optimization method for real-time video stream by a data sample filtering comparison method.
Background
The technology for reporting video data streams in real time by video camera equipment is basically mature, most real-time video data reported by the equipment passes through a central platform, the platform processes video data processing, encoding and decoding and the like, and finally is pushed to a customer service end through a streaming media protocol for playing.
Disclosure of Invention
The invention aims to provide a plug-flow optimization method for a real-time video stream by a data sample filtering comparison method, which reduces the resource consumption condition of the whole system by a still picture filtering mode in a time period from the viewpoints of a CPU (central processing unit), memory resources and network resources.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for optimizing real-time video stream plug flow by a data sample filtering comparison method comprises the following steps:
step 1: a selected policy for a time period;
step 2, selecting video frame data in a time period to capture data samples;
and 3, extracting video frame data from the real-time video frame data reported by the equipment according to a preset extraction strategy, comparing the extracted video frame data with the data sample, discarding the reported real-time video frame data if the similarity is greater than a preset value, and otherwise, processing the video frame data according to a normal plug flow process.
Preferably, in the step 2, a life cycle is set for the captured data samples, and the data samples exceeding the life cycle are discarded.
Preferably, the life cycle is 30 minutes.
Preferably, the extraction strategy is to extract according to a random extraction rate, the extraction rate range is 0% to 100%, the comparison is not performed when 0%, the video frame data processing is performed according to a normal plug flow process, and the similarity comparison is directly performed between the real-time video frame data and the data sample when 100%.
Preferably, the similarity comparison method is an SSIM algorithm.
Preferably, the step 1 is to extract the video frame data at certain time intervals.
Compared with the prior art, the invention has the beneficial effects that:
the invention compares and filters the video frame data samples captured in the selected time period, the real-time video frame data reported by the equipment and the video frame data samples captured in the selected time period from the selected strategy of the time period, so as to achieve the purposes of reducing CPU resources and memory resources of the central platform and pushing network resources.
Drawings
FIG. 1 is a flow chart 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 accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
A method for optimizing real-time video stream plug flow by a data sample filtering comparison method comprises the following steps:
step 1: a selected policy for the time period.
Real-time video data reports video frame data in real time, so that video frame data samples need to be captured according to specific time periods. In this embodiment, the extraction is performed at intervals of 5 minutes for 24 hours in 1 day, for example, 1 time of video frame data is extracted at 0 min and 0 sec at 08, and then 1 time of video frame data is extracted again at 5 min and 0 sec at 08, and so on.
And 2, capturing data samples, namely video frame data samples, of the video frame data in the selected time period.
In step 2 of the invention, the video frame data samples are captured in the appointed time period according to the selected strategy of the time period, and the captured video frame data samples have a life cycle which is respectively active and inactive. In this embodiment, the life cycle duration is 30 minutes, the active period is after capture, the memory enters a death state after 30 minutes, and the memory is removed and discarded.
And 3, extracting video frame data from the real-time video frame data reported by the equipment according to a preset extraction strategy, comparing the similarity of the extracted video frame data with the similarity of the data sample, if the similarity is greater than the preset value, discarding the reported real-time video frame data, and otherwise, processing the video frame data according to a normal plug flow process.
The preset extraction strategy is to extract according to a random extraction rate, the extraction rate range is 0% to 100%, the comparison is not carried out when the extraction rate is 0%, the video frame data processing is carried out according to a normal plug flow process, and the similarity comparison is directly carried out on the real-time video frame data and the data sample when the extraction rate is 100%. In step 3 of the present invention, the random extraction rate can be obtained by a conventional random function generator, which is common knowledge in the art.
In step 3 of the invention, after the steps 1 and 2, a certain number of video frame data samples are generated, and the video frame data samples are used as comparison references; the real-time video frame data reported by the device is randomly extracted according to the random extraction rate, for example, when the reported real-time video frame data is 2000 video frames, only 600 video frames are randomly extracted according to the random extraction rate of 30% to be compared with the video frame data samples.
In step 3 of the present invention, if the similarity is greater than 70%, it is considered that the real-time reported video frame data is not substantially different from the current playing page, the video frame data is directly discarded without going through a subsequent processing flow, otherwise, the video frame data is processed according to a normal plug flow.
In step 3 of the invention, similarity comparison can be performed through an SSIM algorithm so as to improve the accuracy of the similarity.
Claims (6)
1. A method for optimizing the push flow of a real-time video stream by a data sample filtering comparison method is characterized by comprising the following steps:
step 1: a selected policy for a time period;
step 2, selecting video frame data in a time period to capture data samples;
and 3, extracting video frame data from the real-time video frame data reported by the equipment according to a preset extraction strategy, comparing the similarity of the extracted video frame data with the similarity of the data sample, if the similarity is greater than the preset value, discarding the reported real-time video frame data, and otherwise, processing the video frame data according to a normal plug flow process.
2. The method as claimed in claim 1, wherein in step 2, a life cycle is set for the captured data samples, and data samples exceeding the life cycle are discarded.
3. The method as claimed in claim 2, wherein the life cycle is 30 minutes.
4. The method as claimed in claim 1, wherein the extraction strategy is to extract according to a random extraction rate, the extraction rate ranges from 0% to 100%, no comparison is performed when 0% is used, video frame data processing is performed according to a normal stream pushing process, and similarity comparison is performed between real-time video frame data and data samples when 100% is used.
5. The method of claim 1, wherein the similarity comparison method is an SSIM algorithm.
6. The method as claimed in claim 1, wherein the step 1 is to extract the video frame data at a certain time interval.
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| CN202210748527.7A CN115190329A (en) | 2022-06-29 | 2022-06-29 | Plug flow optimization method of data sample filtering comparison method for real-time video stream |
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| CN202210748527.7A CN115190329A (en) | 2022-06-29 | 2022-06-29 | Plug flow optimization method of data sample filtering comparison method for real-time video stream |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107016061A (en) * | 2017-03-15 | 2017-08-04 | 海尔优家智能科技（北京）有限公司 | Video monitoring document handling method and device |
| CN108063914A (en) * | 2017-11-22 | 2018-05-22 | 国政通科技股份有限公司 | Monitor video file generated, playback method, device and terminal device |
| CN110147465A (en) * | 2019-05-23 | 2019-08-20 | 上海闻泰电子科技有限公司 | Image processing method, device, equipment and medium |
| CN111027398A (en) * | 2019-11-14 | 2020-04-17 | 深圳市有为信息技术发展有限公司 | Automobile data recorder video occlusion detection method |
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- 2022-06-29 CN CN202210748527.7A patent/CN115190329A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107016061A (en) * | 2017-03-15 | 2017-08-04 | 海尔优家智能科技（北京）有限公司 | Video monitoring document handling method and device |
| CN108063914A (en) * | 2017-11-22 | 2018-05-22 | 国政通科技股份有限公司 | Monitor video file generated, playback method, device and terminal device |
| CN110147465A (en) * | 2019-05-23 | 2019-08-20 | 上海闻泰电子科技有限公司 | Image processing method, device, equipment and medium |
| CN111027398A (en) * | 2019-11-14 | 2020-04-17 | 深圳市有为信息技术发展有限公司 | Automobile data recorder video occlusion detection method |
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