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Method and device for creating shape variable blocks

A block and variable technology, applied in electrical components, image communication, digital video signal modification, etc., can solve problems such as the absence of effective modes

Inactive Publication Date: 2013-05-22
SONY ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, creating efficient patterns of target blocks that vary in size and shape is beyond the capabilities of traditional block creation methods

Method used

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  • Method and device for creating shape variable blocks
  • Method and device for creating shape variable blocks
  • Method and device for creating shape variable blocks

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Embodiment Construction

[0021] In the following description, reference is made to the accompanying drawings which form a part hereof, and which show by way of illustrations specific embodiments in which the invention may be practiced. It is to be understood that other embodiments may be utilized and structural changes may be made without departing from the scope of the present invention. For example, those skilled in the art will appreciate that the term image used to describe various embodiments is generally interchangeable with the terms field, frame or picture when used in reference to video data.

[0022] One approach creates patterns for variable-shape object blocks in motion estimation. The method receives a target image and a reference image, divides the target image into target blocks of various shapes and sizes, and generates motion vectors for each variable-shaped target block. In one embodiment, the method creates variable shape blocks by iteratively and adaptively combining smaller block...

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Abstract

A method of creating a variable-shaped block in a target image includes generating an initial pattern of target blocks, identifying allowable combinations of target blocks, calculating a combination value for each allowable combination, using the combination value to select one of the allowable combinations, and performing the selected allowable combination to create a variable-shaped block.

Description

technical field [0001] The present invention relates to the field of video compression. Background technique [0002] High compression gains for video sequences can be obtained by removing temporal redundancy between images (frames). For example, to encode an image, a temporal prediction of the image to be encoded is generated based on previously encoded images. The temporal prediction is compared with the actual image to determine the prediction error, and the prediction error is encoded. Predictions can be made using widely used block-based motion estimation and compensation methods (eg, MPEG standards). [0003] Use motion compensation and estimation methods to find reference blocks in one or more reference images to predict the position of the corresponding target block in the target image, so only the prediction residual (residual) of the target block needs to be encoded, the residual The difference is usually the prediction error and the motion vector. These method...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/66H04N19/50H04N19/119H04N19/137H04N19/139H04N19/196H04N19/503H04N19/94
CPCH04N19/00151H04N19/00278H04N19/00357H04N19/00678H04N19/00072H04N19/139H04N19/176H04N19/119H04N19/192H04N19/57H04N19/94H04N7/12
Inventor 苗周荣詹姆斯·J·卡里格马里奥·帕尼科尼
Owner SONY ELECTRONICS INC