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Method and system for representing correlated set of images

An image and image group technology, applied in the field of image coding, can solve the problems of reducing the total coding efficiency and reducing the quality of interpolation

Inactive Publication Date: 2007-05-23
MITSUBISHI ELECTRIC CORP
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Problems solved by technology

However, doing so also degrades the quality of the interpolation, which actually reduces the overall coding efficiency due to the need for more syndrome bits to recover from interpolated errors

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  • Method and system for representing correlated set of images
  • Method and system for representing correlated set of images
  • Method and system for representing correlated set of images

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[0033] Our invention provides a system and method for representing a set of related images using syndrome bits. The images can be correlated in space, time, or both. An example of a set of temporally related images is a video. The set of spatially correlated images may include stereoscopic images. For temporally correlated images, the interest is the motion between images over time. For spatially correlated images, the concern is spatial inconsistency. A representation according to the invention may be generated by an encoder. This representation can be decoded to recover the original associated image.

[0034] In the encoder, a lossy operation is applied to each image to produce a coarse image for each relevant input image of the set. Lossy operations can be subsampling, low frequency filtering, resolution reduction, brightness value reduction, etc. For example, the coarse operation only considers the low-frequency components of each input image. This representation of...

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Abstract

A method represents a correlated set of images. The correlation can be spatial or temporal. A lossy operation is applied to each image in the correlated set to generate a coarse image. The coarse image is encoded losslessly to yield an encoded coarse image. Each image is also represented by syndrome bits. The combination of the encoded coarse images and the syndrome bits represent the correlated set of images.

Description

technical field [0001] The present invention relates generally to image coding, and more particularly to encoding and decoding associated images using syndrome bits. Background technique [0002] Conventional image and video coding schemes such as those according to the MPEG and ITU series of video coding standards are well suited where there are a large number of low-complexity receivers (TVs) with decoders, but only a few high-complexity transmitters with encoders broadcast video and storage media distribution for broadcasters. [0003] Using this video distribution model, computationally demanding motion estimation techniques are employed in the encoder to exploit the temporal correlation between video frames. Processing that exploits temporal redundancy prior to transmission yields excellent compression efficiency. [0004] FIG. 1 shows a conventional encoder 100 with motion estimation 110 . The input video 101 is processed one block at a time. The motion estimator 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/66G06T7/00H04N7/26H04N7/36H04N7/46
CPCH04N7/26345H04N19/00818H04N19/00242H04N7/364H04N19/00103H04N19/002H04N19/0009H04N19/00739H04N19/00545H04N19/00757H04N19/00533H04N19/00684H04N19/00296H04N19/597H04N19/46H04N19/513H04N19/63H04N19/124H04N19/127H04N19/154H04N19/166H04N19/18H04N19/44H04N19/523H04N19/59
Inventor 安东尼·维特罗乔纳森·S.·耶迪蒂亚
Owner MITSUBISHI ELECTRIC CORP
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