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Fast motion estimation methods using multiple reference frames

A motion estimation and reference frame technology, which is applied to the components of TV systems, TVs, electrical components, etc., can solve the problems of increased complexity of motion estimation, difficulty in applying H.264/AVC, and increased complexity of motion estimation.

Inactive Publication Date: 2011-05-11
SAMSUNG ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the H.264 / AVC codec uses multiple reference frames to calculate the residual signal between frames, thus increasing the complexity of motion estimation compared to existing codecs
An increase in motion vector resolution also leads to an increase in motion estimation complexity
The complexity of H.264 / AVC makes it difficult to adapt H.264 / AVC to applications (such as real-time video encoders)

Method used

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  • Fast motion estimation methods using multiple reference frames
  • Fast motion estimation methods using multiple reference frames
  • Fast motion estimation methods using multiple reference frames

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Embodiment Construction

[0047] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. However, the invention should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0048] It will be understood that, although the terms first, second, etc. may be used herein to describe various components, these components should not be limited by these terms. These terms are only used to distinguish one component from another. Therefore, a first component described below may be termed a second component without departing from the scope of the present invention. In addition, as used herein, singular forms are intended to include plural forms unless the context clearly dictates otherwise. It should also be understood that, as use...

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Abstract

Motion estimation methods using multiple reference frames are provided. In the methods, motion estimation is performed on a current block using a single reference frame selected from the multiple reference frames or using the multiple reference frames in order of probability that each reference frame is an optimal reference frame for the current block. Accordingly, faster motion estimation is performed.

Description

[0001] This application claims priority from Korean Patent Application No. 10-2009-0107191 filed with the Korean Intellectual Property Office on Nov. 6, 2009, which is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates to image compression, and more particularly to methods for efficiently reducing computations during video signal compression. Background technique [0003] With the development of mobile communication and satellite communication, wireless communication service becomes more important in the information society. Multimedia wireless communication services are widely deployed to provide wireless Internet access or video communication and transmission of voice or text information. Specifically, in the industry of International Mobile Telecommunications-2000 (IMT-2000) and fourth-generation mobile communication using the satellite digital multimedia broadcasting (DMB) system, a system has been established to enab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/50H04N19/50H04N19/105H04N19/134H04N19/176H04N19/196H04N19/503H04N19/51H04N19/573H04N19/61H04N19/625
CPCH04N19/197H04N19/105H04N19/50H04N19/139H04N19/176H04N19/51H04N19/196H04N19/61H04N19/463H04N19/573H04N5/145
Inventor 罗炳斗朴玄旭全东山
Owner SAMSUNG ELECTRONICS CO LTD
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