Video frame extraction method and device

A video frame and video stream technology, applied in the field of video networking, can solve the problems of long time consumption, low efficiency, long time consumption, etc., and achieve the effect of solving the problem of long time consumption

Pending Publication Date: 2019-11-15
VISIONVERA INFORMATION TECH CO LTD
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Problems solved by technology

However, there are often large files with a duration of more than ten hours and a file size of more than 10GB in the Internet of Vision, because the later the playback time of the required video frame is, the longer it takes to find the video frame, so the existing The video frame extraction method has the problems of long time consumption and low efficiency

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  • Video frame extraction method and device
  • Video frame extraction method and device
  • Video frame extraction method and device

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Embodiment Construction

[0055] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0056] In order to enable those skilled in the art to better understand the embodiments of the present invention, the Internet of Things is introduced as follows:

[0057] The Internet of Vision is an important milestone in the development of the network. It is a real-time network that can realize real-time transmission of high-definition video, and push many Internet applications to high-definition video, high-definition face-to-face.

[0058] The Internet of View adopts real-time high-definition video exchange technology, which can provide required services on one network platform, such as high-definition video conferencing, video surveillance, intelligent monitoring and analysis, emergency command, digital broadcast TV, time-lap...

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Abstract

The embodiment of the invention provides a video frame extraction method and device. The method comprises the following steps of: obtaining an extraction request of a target video frame, wherein the extraction request carries specified time; depending on the specified time, reading a first video frame from a corresponding position of the video data, obtaining a first display time stamp from the first video frame; according to a comparison result of the specified time and the first display time stamp, determining the first video frame as a target video frame, or searching a second video frame before and after the first video frame to determine the second video frame as a target video, when the target video frame is extracted, the video data can be directly skipped to the corresponding position of the specified time in the video data to be searched, the target video frame does not need to be searched backwards from the starting frame of the video, so that the problem that the later the playing time of the required video frame is, the longer the time for searching the target video frame is is solved, and the problems of long time consumption and low efficiency during video frame extraction are solved.

Description

technical field [0001] The invention relates to the technical field of Internet of Things, in particular to a video frame extraction method and a video frame extraction device. Background technique [0002] With the rapid development of network technology, Internet of View technology is increasingly used in various technical fields. The Internet of View adopts real-time high-definition video exchange technology to realize high-definition quality video playback through TV or computer. [0003] Usually, in order to display the content of the video, the video platform usually extracts a frame of image from the video and displays it on the website or client page. A general extraction method needs to start from the start frame of the video and search backwards in order until the video frame corresponding to the required playing time is found. However, there are often large files with a duration of more than ten hours and a file size of more than 10GB in the Internet of Vision, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/44G06F16/78
CPCH04N5/4448
Inventor 牛永会高浩陈婷史兴宇
Owner VISIONVERA INFORMATION TECH CO LTD
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