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Method and system for image motion estimation

A motion vector and motion vector prediction technology, applied in the field of motion estimation, can solve the problems of increasing computational complexity and encoding time

Inactive Publication Date: 2011-11-30
THE HONG KONG UNIV OF SCI & TECH
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Problems solved by technology

[0005] However, various video compression techniques will have a corresponding trade-off, which is to increase the complexity of the operation and the encoding time

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  • Method and system for image motion estimation
  • Method and system for image motion estimation

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Embodiment Construction

[0027] As mentioned before, many applications utilize the transmission and storage of video, therefore, efficient video compression has received extensive attention. The traditional video compression technology or the application of motion estimation and compensation to realize the compression of temporal redundant information in video compression, the application of discrete cosine transform to realize the compression of spatial redundant information, the use of entropy coding to achieve statistical compression and the application of quantization to reduce Visual redundancy for compression purposes.

[0028] Motion Estimation (ME) and Motion Compensation (MC) can effectively reduce redundancy in the temporal domain because there is a strong temporal correlation between adjacent frames in the temporal domain. By using the framework of reference frame prediction, constructing a predicted frame, and subtracting the predicted frame from the current frame, the resulting frame (cal...

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Abstract

Provided is sub-block motion estimation that includes a full search with a reduced search area around a motion vector predictor. Also provided are a single (or unified) motion vector predictor and a function similar to a rate-distortion cost function. Also provided is a scanning order that can reduce or substantially eliminated redundant data loading and / or that can achieve different data re-use ratio. Further, provided herein is a reconfigurable multi-resolution motion vector re-use hardware architecture based on a single motion vector predictor and a function similar to a rate-distortion cost function. Further, through utilization of the disclosed aspects, only a small number of past motion vectors are propagated and the disclosed aspects can be reconfigured for video with different spatial resolution.

Description

[0001] This application claims priority to: U.S. Provisional Application No. 61 / 344,124, filed May 27, 2010, entitled "MULTI-RESOLUTION MOTION VECTOR RE-USE HARDWARE ARCHITECTURE"; filed May 27, 2010 U.S. Provisional Application No. 61 / 344,125, entitled "RECONFIGURABLE SMART SNAKE SCAN WITH RRA"; and "HARDWARE FRIENDLY VARIABLE BLOCK-SIZE MOTION ESTIMATION WITH UNIFIED MOTION VECTOR FREDICTOR AND RD-LIKE COST FUNCTION", U.S. Provisional Application No. 61 / 344,126". All of the above applications are incorporated herein by reference in their entirety. technical field [0002] The present subject matter relates to video processing, in particular motion estimation in video processing. Background technique [0003] The transmission and storage of video is very important for many applications and has gained worldwide attention. However, raw uncompressed video sequences can be very large. For example, for HD video, the raw uncompressed video data may be nearly 448G. Moreover, th...

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Application Information

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IPC IPC(8): H04N7/26H04N7/36
CPCH04N19/00678H04N7/2675H04N19/00696H04N19/00515H04N7/26856H04N7/26851H04N7/26872H04N19/00672H04N19/57H04N19/433H04N19/52H04N19/567
Inventor 区子廉闻兴须江
Owner THE HONG KONG UNIV OF SCI & TECH
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