Rapid sub-pixel motion estimation method based on prediction direction correction / statistic prejudgement
Rapid sub-pixel motion estimation method based on prediction direction correction / statistic prejudgement
Application Number:
Application Date:
Announcement Date:
Pub. Date:
Publication Number:
Announcement Number:
Grant Date:
Granted Pub. Date:
H04N 7/32
Tsinghua University
He Yun, Chen Zhibo
Key Words:
Rapid, sub-pixel motion, estimation method, prediction direction correction / statistic prejud
The invention belongs to video coding field in signal processing, relating to a fast sub-pixel motion estimating method based on prediction direction correction/statistic prediction, mainly in sub-pixel motion estimations of 1/2, 1/4, 1/8, etc, using the result of the preceding stage search precision motion estimation as well as the statistic information at current precision to predict the current stage motion vector and introducing a search cut-off criterion. At the same time of keeping the coding rate distortion characteristics of existing techniques, it extremely reduces operating complexity of sub-pixel motion estimation in hardware and software. It is not limited to H.264 international standard, but able to expanded to other applications to international standard and non-international standard video coding.

Recommend this patent:
1 2 3 4 5
Average ( 0 votes):
                                                                          Recommended Patents>>

Relevancy information

Other Patents of Same Inventor

Bit error detection method based on fragile digital watermark technology and its application
Method based on correcting predictive direction/statistical prejudgement for fast estimation of sub-pixel motion
Programmable video signal processor structure based on mixed video encoding method
Multi-camera video object took video-image communication system and realizing method thereof
Hierarchy programmable parallel video signal processor structure for motion estimation algorithm
Obtaining method of reference image suitable for sampling block group coding
Method for assisting video cutting by cutting mark code
Method for realizing self-adaptive scanning in picture coding course
Integer transformation circuit and integer transformation method
Self-adaptive two-dimensional variable length decoding method and device based on context
Binary and probability model selecting method for use in image arithmetic code
A two-value arithmetic coding method of digital signal
Block group coding structure and adaptive phased predictive coding method based on the same structure
Method of entropy coding of transformation coefficient in image/video coding
A self-adaptive scanning method in video coding/decoding
A multi-video coding and decoding method and device
A method and decoding and encoding method for capturing the video difference vector in the multi-video coding process
Method and apparatus for realizing self-adaptive scanning in image coding process
A quick reading module for searching block in the video encoder
Method and apparatus for realizing self-adaptive quantization in coding process
Method for scanning quickly residual matrix in video coding
Method and apparatus for realizing quantization in coding/decoding process
Countra-quantization method based on merging processing and apparatus thereof
Adaptive variable length decoding method based on text
Multi-pipeline phase information sharing method based on data buffer storage

News & Events More>>

Last Update  
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.

Copyright 2008-2015 All Rights Reserved Patent License of China.      Designed by Easygo