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    • 1. 发明申请
    • INTRA-PREDICTION ENCODING/DECODING APPARATUS AND METHOD FOR OMITTING THE TRANSMISSION OF PREDICTION MODE INFORMATION USING CHARACTERISTICS OF REFERENCE PIXELS
    • 使用参考像素特性来预测传输预测模式信息的内部预测编码/解码装置和方法
    • US20130230105A1
    • 2013-09-05
    • US13821528
    • 2011-09-07
    • Jinhan SongJeongyeon LimTae Young JungHyuk LeeJechang Jeong
    • Jinhan SongJeongyeon LimTae Young JungHyuk LeeJechang Jeong
    • H04N7/26
    • H04N19/176H04N19/11H04N19/14H04N19/46H04N19/593
    • 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.
    • 提供了使用参考像素的特性来省略预测模式信息的传输的帧内预测编码/解码装置和方法。 本公开提供了一种帧内预测编码装置和方法,用于通过使用与当前块相邻的参考像素的特性来省略当前块的预测模式的附加信息的传输,从而在生成比特流时减少开销;以及 提高图像的编码和解码效率,同时保持预测精度。 帧内预测编码装置包括:特征信息计算器,用于通过选择与当前块相邻的至少一个参考像素来计算方向性的特征信息进行编码;比较器,用于比较预定参考值和所计算的方向性的特征信息 所述预测模式确定单元,当所述比较器的比较结果满足预定条件时,将当前块的预测模式确定为与所选择的参考像素相对应的模式;以及编码器,用于编码 根据确定的模式的预测块与当前块之间的残差,并且当比较结果满足预定条件时省略所确定的模式的编码模式信息。
    • 8. 发明申请
    • VIDEO ENCODING DEVICE AND ENCODING METHOD THEREOF, VIDEO DECODING DEVICE AND DECODING METHOD THEREOF, AND DIRECTIONAL INTRA-PREDICTION METHOD TO BE USED THERETO
    • 视频编码设备及其编码方法,视频解码设备及其解码方法,以及使用的方向预测方法
    • US20120320975A1
    • 2012-12-20
    • US13513302
    • 2010-11-25
    • Sunyeon KimJeongyeon LimGyumin LeeJaehoon ChoiJechang Jeong
    • Sunyeon KimJeongyeon LimGyumin LeeJaehoon ChoiJechang Jeong
    • H04N7/32
    • H04N19/11H04N19/593
    • The present disclosure provides a video encoding apparatus and encoding method thereof, video decoding apparatus and decoding method thereof, and directional intra-prediction method to be used therefor. The video encoding apparatus includes a main mode search unit for searching for main mode for a current block from among directional intra-prediction modes; a sub mode search unit for searching for sub modes formed by inclining indicated orientation of found main mode by main mode search unit by a predetermined offset in both clockwise and counterclockwise directions; a predicted block generator for generating predicted block of the current block from neighboring blocks of the current block based on found main mode by the main mode search unit and found sub modes by the sub mode search unit; a differentiator for calculating differential between the current block and the predicted block; and an encoder for encoding calculated differential by the differentiator.
    • 本公开提供了一种视频编码装置及其编码方法,其视频解码装置及其解码方法以及用于其的定向帧内预测方法。 视频编码装置包括:主模式搜索单元,用于从定向帧内预测模式中搜索当前块的主模式; 子模式搜索单元,用于搜索通过主模式搜索单元将所找到的主模式的指示方位倾斜预定的偏移在顺时针和逆时针方向上形成的子模式; 预测块发生器,用于通过主模式搜索单元基于找到的主模式产生当前块的当前块的预测块,并由子模式搜索单元发现子模式; 用于计算当前块和预测块之间的差分的微分器; 以及用于通过微分器对计算出的微分进行编码的编码器。
    • 9. 发明授权
    • Video encoding device and encoding method thereof, video decoding device and decoding method thereof, and directional intra-prediction method to be used thereto
    • 视频编码装置及其编码方法,视频解码装置及其解码方法以及其使用的定向帧内预测方法
    • US09473777B2
    • 2016-10-18
    • US13513302
    • 2010-11-25
    • Sunyeon KimJeongyeon LimGyumin LeeJaehoon ChoiJechang Jeong
    • Sunyeon KimJeongyeon LimGyumin LeeJaehoon ChoiJechang Jeong
    • H04N19/11H04N19/593
    • H04N19/11H04N19/593
    • The present disclosure provides a video encoding apparatus and encoding method thereof, video decoding apparatus and decoding method thereof, and directional intra-prediction method to be used therefor. The video encoding apparatus includes a main mode search unit for searching for main mode for a current block from among directional intra-prediction modes; a sub mode search unit for searching for sub modes formed by inclining indicated orientation of found main mode by main mode search unit by a predetermined offset in both clockwise and counterclockwise directions; a predicted block generator for generating predicted block of the current block from neighboring blocks of the current block based on found main mode by the main mode search unit and found sub modes by the sub mode search unit; a differentiator for calculating differential between the current block and the predicted block; and an encoder for encoding calculated differential by the differentiator.
    • 本公开提供了一种视频编码装置及其编码方法,其视频解码装置及其解码方法以及用于其的定向帧内预测方法。 视频编码装置包括:主模式搜索单元,用于从定向帧内预测模式中搜索当前块的主模式; 子模式搜索单元,用于搜索通过主模式搜索单元将所找到的主模式的指示方位倾斜预定的偏移在顺时针和逆时针方向上形成的子模式; 预测块发生器,用于通过主模式搜索单元基于找到的主模式产生当前块的当前块的预测块,并由子模式搜索单元发现子模式; 用于计算当前块和预测块之间的差分的微分器; 以及用于通过微分器对计算出的微分进行编码的编码器。