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video encoding equipment

A video encoding and equipment technology, applied in digital video signal modification, electrical components, image communication, etc., to achieve the effect of improving video compression efficiency and video reconstruction efficiency

Active Publication Date: 2018-07-31
SK TELECOM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Furthermore, the unified operation between encoding and decoding of video makes it difficult to achieve high-efficiency video decoding from the already degraded compression efficiency of high-resolution video encoding

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no. 2 approach

[0352] A second embodiment of the present invention will be described below. Specifically, the second embodiment of the present invention describes CABAC encoding according to syntax, a syntax structure of a transform sub-block, and a predictor sub-block.

[0353] Furthermore, when encoding related encoding information using CABAC, it is encoded and decoded using different context tables according to macroblocks, subblocks, predicted subblocks, and transformed subblocks.

[0354] In the second embodiment of the present invention, the input video may be input to the video encoding device 100 in units of frames or in units of fields, or may be divided into NxN pixel macroblocks (N: an integer greater than or equal to 16) input to the video encoding device 100. The macroblocks described below may be divided into square sub-blocks. Furthermore, individual macroblocks and subblocks may be divided into predictive subblocks for prediction purposes. Macroblocks and subblocks can be...

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Abstract

The present invention relates to a video encoding device. The video encoding apparatus includes: a predictor for generating a predicted sub-block by predicting sub-blocks into which a macroblock is divided; a subtracter for generating a predicted sub-block by subtracting the predicted sub-block from the sub-block a residual sub-block; a transformer / quantizer for generating quantized transform coefficients by transforming and quantizing the residual sub-block with a transform selected according to the size of the sub-block; and an encoder for generating quantized transform coefficients when using Context Adaptive Binary Arithmetic Coding (CABAC) uses different context tables to generate encoded video data according to the macroblock and the subblock when encoding the quantized transform coefficients.

Description

[0001] This application is a divisional application of the original patent application number 201180029771.8 (international application number: PCT / KR2011 / 002763, filing date: April 18, 2011, invention name: video encoding / decoding device and method). technical field [0002] The present invention relates to video encoding / decoding devices and methods. More specifically, the present invention relates to a method for improving video quality by dividing an extended macroblock into sub-blocks of various sizes and shapes and performing video coding using different prediction units and transform units according to the sizes and shapes of the sub-blocks. Apparatus and methods for compression efficiency. Furthermore, the present invention relates to a device and a method for improving video reconstruction efficiency by performing video decoding from a bitstream received from such a video encoding device. Background technique [0003] The statements in this section merely provide b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/176H04N19/119H04N19/61H04N19/96H04N19/12H04N19/157
CPCH04N19/119H04N19/12H04N19/157H04N19/176H04N19/61H04N19/96H04N19/13H04N19/159
Inventor 宋振翰林晶娟文柱禧李英烈金海光全炳宇韩钟基朴亨美李柱玉
Owner SK TELECOM CO LTD