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

A frame rate up-conversion and deformation motion technology, applied in the field of video coding, can solve problems such as difficult to meet the high real-time requirements of video applications, reduce codec speed and codec efficiency, increase codec time and bit rate, and achieve saving The effect of searching time, improving codec efficiency, reducing time and bit rate

Active Publication Date: 2017-02-22
SUN YAT SEN UNIV
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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

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

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Embodiment 1

[0098] Aiming at the problems of long encoding and decoding time, slow encoding and decoding speed and low encoding and decoding efficiency caused by hierarchical calculation in the prior art, the present invention proposes a brand-new frame rate up-conversion video encoding method. Such as figure 1 As shown, the present invention uses the deformation motion model prediction method as the third mode in the frame rate up-conversion algorithm. The improved frame rate up-conversion algorithm first tests whether the deformation motion model can be constructed, and if so, uses the deformation motion model prediction method , otherwise, the bidirectional matching mode or template matching mode of the HEVC coding prediction algorithm is still used.

[0099] Among them, the motion information of the deformation motion model prediction method mainly includes three important parameters: a reference direction, a reference index, and a motion vector. Such as figure 2 As shown, the moti...

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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...

Claims

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Application Information

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IPC IPC(8): H04N19/52H04N19/176H04N19/583
CPCH04N19/176H04N19/52H04N19/583
Inventor 梁凡沈松伟
Owner SUN YAT SEN UNIV
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