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Video stitching method, device, electronic device and computer-readable storage medium

A technology for video splicing and storage media, which is used in TVs, electrical components, color TVs, etc., can solve the problem of large memory bandwidth requirements, and achieve the effect of reducing device memory bandwidth requirements.

Active Publication Date: 2022-07-19
ZHEJIANG UNIVIEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method involves at least two frame buffer processing, and both frame buffer processing and frame reading processing depend on the memory bandwidth of the device. This method requires a large memory bandwidth.

Method used

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  • Video stitching method, device, electronic device and computer-readable storage medium
  • Video stitching method, device, electronic device and computer-readable storage medium
  • Video stitching method, device, electronic device and computer-readable storage medium

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Embodiment Construction

[0057] 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. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0058]Thus, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application as claimed, but is merely representative of selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[005...

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PUM

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Abstract

Embodiments of the present application provide a video splicing method, apparatus, electronic device, and computer-readable storage medium. First, a first video stream with a minimum frame rate is determined from the received multiple video streams, and other non-minimum video streams are firstly determined. The frame rate video stream is used as the second video stream. Then, each first video frame of the first video stream received is written into a plurality of pre-established storage units according to preset rules, and when the second video frame of the second video stream is received, the second video frame is stored. Writes the current memory location to which the current first video frame is written. Finally, splicing the second video frame and the first video frame in the current storage unit to obtain a spliced ​​image. In this way, the adaptation between different frame rates is achieved while buffering the video frames of each video stream, which reduces the demand for device memory bandwidth.

Description

technical field [0001] The present application relates to the technical field of video surveillance, and in particular, to a video splicing method, apparatus, electronic device, and computer-readable storage medium. Background technique [0002] In the field of video surveillance, it is often necessary to splicing multiple channels of video to achieve centralized display. Different video sources may have different frame rates due to differences in video capture devices or video resolutions. When performing video splicing of different video sources, it is necessary to adapt the frame rate to realize video splicing. [0003] In the prior art, the method used when performing video splicing is to perform first-level frame buffering on the received video streams from different video sources, which is generally implemented in the device memory. Then, the buffered video frames are read for frame rate adaptation processing, and after video splicing is completed, second-level frame...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/18H04N5/262H04N5/265
CPCH04N7/181H04N5/2624H04N5/265
Inventor 莫德欠马龙飞
Owner ZHEJIANG UNIVIEW TECH CO LTD