Encoding and decoding device for low-code rate video super-resolution reconstruction

Abstract

The invention discloses a coding device and a decoding device of low code rate video super-resolution reconstruction in the video processing field. In the invention, the coding device part provides auxiliary code stream to improve efficiency and precision of the low code rate video super-resolution reconstruction; the decoding device part uses the very little auxiliary code stream provided by the coding terminal to guide the super-resolution reconstruction of the decoding terminal; the coding device part uses the very little super-resolution constructed by pre-decoding closed loop feedback with super-resolution reconstruction to reconstruct the auxiliary code stream, and uses a human eye interested region analyzing module in the coding module to guide and correct with the emphasis on the super-resolution reconstruction of the human eye interested region, to further improve subjective quality input by video decoding. Compared with common video super-resolution ''blind'' reconstruction, the invention reduces complexity of the super-resolution reconstruction obviously, improves the reconstruction efficiency, meanwhile strengths the adaptive capacity of the super-resolution reconstruction to the high dynamic and diversified video image data, and improves the reconstruction precision.

Description

technical field [0001] The present invention relates to a technology in the field of video processing, in particular to a coding device and a decoding device for super-resolution reconstruction of low-bit-rate video. Background technique [0002] The transmission and codec technology of low-bit-rate video is a research hotspot in the field of information science. This technology has a wide range of applications, such as mobile TV, video surveillance, telemedicine, and unmanned vehicles. Huge application value, such as unmanned detection in the air, wireless video transmission under the sea, remote sensing imaging, video transmission in hostile interference environments, etc. With the continuous emergence of a large number of video applications and the popularity of high-resolution display devices, the market has higher and higher requirements for the quality of low-bit-rate video. However, the "transmission bandwidth" as a public resource is always relatively scarce. It is ...

AI Technical Summary

Problems solved by technology

This method relies on the known prior probability model, but due to the high dynamics and diversity of video data, the prior probability model is quite different from the actual situation, which makes the method need to iterate continuously to improve the quality of the restored image, so the amount of calculation Huge, difficult to apply to real-time video image processing

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