US Patent Application 18450471. VIDEO CODING AND DECODING METHOD AND APPARATUS, COMPUTER DEVICE, AND STORAGE MEDIUM simplified abstract

VIDEO CODING AND DECODING METHOD AND APPARATUS, COMPUTER DEVICE, AND STORAGE MEDIUM

Organization Name

Tencent Technology (Shenzhen) Company Limited

Inventor(s)

Yong Yang of Shenzhen (CN)

VIDEO CODING AND DECODING METHOD AND APPARATUS, COMPUTER DEVICE, AND STORAGE MEDIUM - A simplified explanation of the abstract

This abstract first appeared for US patent application 18450471 titled 'VIDEO CODING AND DECODING METHOD AND APPARATUS, COMPUTER DEVICE, AND STORAGE MEDIUM

Simplified Explanation

The patent application describes a video coding method that enhances the quality of video images by adjusting the quantization parameter and coding information.

• The method starts by obtaining basic coding information and a basic quantization parameter for the current image in a video.
• Loss information of the current image is computed based on the basic coding information.
• The basic quantization parameter is mapped to obtain an initial enhanced quantization parameter.
• An initial enhanced bit rate is computed using the initial enhanced quantization parameter, and adjustments are made to the quantization parameter if there is a difference between the initial enhanced bit rate and a preset target bit rate.
• The adjusted quantization parameter becomes the target enhanced quantization parameter.
• The loss information is then coded based on the target enhanced quantization parameter to obtain target enhanced coding information.
• Finally, target coding information corresponding to the current image is obtained by combining the basic coding information and the target enhanced coding information.

Original Abstract Submitted

A video coding includes: obtaining basic coding information and a basic quantization parameter corresponding to a current image in a video, and computing loss information of the current image based on the basic coding information; mapping the basic quantization parameter to obtain an initial enhanced quantization parameter; performing a bit rate computation using the initial enhanced quantization information to obtain an initial enhanced bit rate, and adjusting the initial enhanced quantization parameter when there is a difference between the initial enhanced bit rate and a preset target enhanced bit rate, to obtain a target enhanced quantization parameter; coding the loss information based on the target enhanced quantization parameter to obtain target enhanced coding information, and obtaining target coding information corresponding to the current image based on the basic coding information and the target enhanced coding information.