Video frame coding method and device
By using initial motion vectors for inter-frame prediction and data compression in video frame encoding, the conflict between delay and code rate in new 5G call applications is solved, achieving high definition and low code rate while meeting the needs.
CN119854504APending Publication Date: 2025-04-18CHINA MOBILE INTERNET CO LTD +1
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Patent Information
- Application Number
- CN202510011241.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-04-18
AI Technical Summary
Technical Problem
In the new 5G call application, existing video encoding methods are difficult to meet the high definition and low bit rate requirements of video streams without increasing latency.
Method used
By determining the initial motion vector based on the target video frame and the adjacent previous video frame, inter-prediction is performed on the first area in the video frame, and data compression is performed on the prediction result to generate a video code stream.
Benefits of technology
This method can ensure high definition of the video stream without increasing the delay and reduce the bit rate, reduce the motion prediction calculation process, save time, and further optimize the bit rate through lossless compression and entropy coding.
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Smart Images
Figure CN119854504A_ABST
Abstract
The invention discloses a video frame coding method and device, and belongs to the technical field of coding, decoding and transcoding. The method comprises the following steps: determining an initial motion vector of a first region in a target video frame according to the obtained target video frame and a previous video frame adjacent to the target video frame; according to the initial motion vector of the first area, determining a first difference degree between a target macro block in the first area and a first reference macro block of a previous video frame, the target macro block corresponding to the first reference macro block; under the condition that the first difference degree meets a preset condition, performing inter-frame prediction on the first region according to the initial motion vector of the first region to obtain an inter-frame prediction result; and performing data compression on the inter-frame prediction result to obtain a video code stream of the target video frame. Through the above mode, under the condition of not increasing time delay, the high definition and low code rate requirements of the video stream can be satisfied at the same time.
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