发明名称 |
INTRA-PREDICTION ENCODING/DECODING APPARATUS AND METHOD FOR OMITTING THE TRANSMISSION OF PREDICTION MODE INFORMATION USING CHARACTERISTICS OF REFERENCE PIXELS |
摘要 |
An intra-prediction encoding/decoding apparatus and method is provided that omits transmission of prediction mode information using characteristics of reference pixels. The present disclosure provides an intra-prediction encoding apparatus and method for omitting transmission of additional information of a predicted mode of the current block through the use of characteristics of reference pixels adjacent to a current block and thereby reducing overhead when a bitstream is generated, and improving the efficiency of encoding and decoding an image while maintaining the accuracy of intra-predictions. The intra-prediction encoding apparatus includes a characteristic information calculator for calculating characteristic information of a directionality by selecting at least one reference pixels adjacent to a current block to encode, a comparer for comparing between a predetermined reference value and the characteristic information of the directionality calculated by the characteristic information calculator, a prediction mode determining unit for determining a prediction mode for the current block to be a mode corresponding to the selected reference pixel when a result of the comparison performed by the comparer satisfies a predetermined condition, and an encoder for encoding a residual between a predicted block according to the determined mode and the current block, and omitting encoding mode information of the determined mode when the result of the comparison satisfies the predetermined condition.
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申请公布号 |
US2013230105(A1) |
申请公布日期 |
2013.09.05 |
申请号 |
US201113821528 |
申请日期 |
2011.09.07 |
申请人 |
SONG JINHAN;LIM JEONGYEON;JUNG TAE YOUNG;LEE HYUK;JEONG JECHANG;SK TELECOM CO., LTD. |
发明人 |
SONG JINHAN;LIM JEONGYEON;JUNG TAE YOUNG;LEE HYUK;JEONG JECHANG |
分类号 |
H04N7/26 |
主分类号 |
H04N7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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