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Adaptive scanning device and scanning method thereof

A scanning device and self-adaptive technology, applied in the direction of digital video signal modification, electrical components, image communication, etc., can solve the problem of ignoring the specific characteristics of the remaining data, and achieve the effect of reducing bit rate, improving compression efficiency, and improving efficiency

Active Publication Date: 2016-08-10
SK TELECOM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is a problem in that scanning by means of a zigzag pattern ignores the specific characteristics of the remaining data in the picture

Method used

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  • Adaptive scanning device and scanning method thereof
  • Adaptive scanning device and scanning method thereof
  • Adaptive scanning device and scanning method thereof

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Embodiment Construction

[0030] Hereinafter, an intra prediction encoding / decoding device and method and an adaptive scanning device and method according to embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0031] image 3 is a conceptual diagram illustrating an adaptive scanning device according to an embodiment of the present disclosure.

[0032] Referring to the drawing, the intra predictor 310 may predict a value of the current block 305 by copying neighboring pixels on the left and upper sides of the current block 305 to a predetermined direction. At this time, the intra predictor 310 can predict the prediction mode (mode 0, 1, 3 to 8), and predict the value of the current block 305 as a plurality (9) of prediction modes including a prediction mode (DC mode) using the average value of 8 pixels adjacent to the left and upper sides of the current block 305 ; and the intra prediction mode selector 320 may select the prediction mode wit...

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Abstract

The present disclosure relates to an adaptive scan apparatus and a method for scanning thereof. The adaptive scan apparatus includes a zero coefficient counter and a scan pattern updater. The scan pattern updater is configured to generate a zero counter corresponding to a prediction mode of a neighboring block of a current block and to update the zero counter corresponding to a position where a coefficient value of the current block is 0 for transformed and quantized data. And the scan pattern updater is configured to update a scan pattern by sequentially arranging generated zero counters updated for the current block from a position of a small value to a position of a large value.

Description

technical field [0001] The present disclosure relates to an adaptive scanning device and a scanning method thereof in one or more implementations. More specifically, the present disclosure relates to a scan pattern capable of being adaptively updated according to a probability distribution of quantized residual data instead of using a conventional zigzag (Zig- zag) scanning pattern, an adaptive scanning device and scanning method thereof for improving the compression efficiency of motion pictures. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] With the development of information communication technologies including the Internet, visual communication has been added in addition to text and voice communication. Conventional text-centric communication schemes are insufficient to meet various consumer expectations, and thus, multimedia services that c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/129H04N19/61H04N19/11H04N19/593
CPCH04N19/11H04N19/129H04N19/61H04N19/122H04N19/124H04N19/13
Inventor 宋振翰林晶娟刘根豪郑太荣郑济昌
Owner SK TELECOM CO LTD
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