Frame rate up-conversion video coding method based on deformation movement model and system

Abstract

The invention discloses a frame rate up-conversion video coding method based on a deformation movement model and a system. The method comprises steps that whether the deformation movement model can be constructed is determined according to the information of four corners of a left upper corner, a right upper corner, a left lower corner and a right lower corner of a present block; frame rate up-conversion for the present block is carried out through employing a deformation movement model prediction mode, a bidirectional matching mode or a template matching mode according to a determination result, the movement information of the present block is acquired, movement compensation is carried out according to the acquired movement information, and the movement information comprises but not limited to a reference direction, a reference index and a movement vector. The method is advantaged in that a movement model of the present block is predicted through the deformation movement model in advance, the movement information of a smallest block is further calculated, the searching time of the movement vector is saved, the coding / decoding time and a code rate are greatly reduced, a coding / decoding speed and coding / decoding efficiency are improved, and the method can be widely applied to the video coding field.

Description

technical field [0001] The invention relates to the field of video coding, in particular to a frame rate up-conversion video coding method and system based on a deformation motion model. Background technique [0002] The High Efficiency Video Coding (HEVC) standard is the latest generation of international video coding standards. Since January 2010, VCEG (Video Coding Experts Group, Video Coding Experts Group) and MPEG (Moving Picture Experts Group, Moving Picture Coding Experts Group) have jointly established the international video coding standard organization JCT-VC (Joint Collaborative Team on Video Coding) to develop a new international video coding standard HEVC. The HEVC coding standard was officially promulgated in January 2013 and has applied to become an international video coding standard. HEVC has comprehensively adopted the coding technologies of many technical proposers around the world. Compared with previous video coding standards, HEVC has higher compressi...

AI Technical Summary

Problems solved by technology

However, the new tool FRUC uses a hierarchical calculation method to obtain the motion vector of each smallest block, which takes a lot of time to search for the motion vector each time, which increases the time and code rate of encoding and decoding, and reduces the speed of encoding and decoding. Speed ​​and codec efficiency, it is difficult to meet people's growing real-time high requirements for video applications

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