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    • 92. 发明授权
    • Encoding and decoding device and method using intra prediction
    • 使用帧内预测的编码和解码设备和方法
    • US09179146B2
    • 2015-11-03
    • US13819153
    • 2011-08-26
    • Jinhan SongJeongyeon LimYoonsik ChoeYonggoo KimYung Ho ChoiJi Hong Kang
    • Jinhan SongJeongyeon LimYoonsik ChoeYonggoo KimYung Ho ChoiJi Hong Kang
    • H04N11/02H04N19/50H04N19/176H04N19/147H04N19/61H04N19/11H04N19/117
    • H04N19/11H04N19/117H04N19/147H04N19/176H04N19/182H04N19/50H04N19/61
    • The present disclosure relates to encoding and decoding apparatus and method using intra prediction. The encoding apparatus includes a reference pixel characteristics extractor for receiving reference pixel(s) included in neighboring blocks of a target block to encode to determine a reference pixel characteristic and determining whether adaptive filtering is applied to the reference pixel(s), based on reference pixel characteristic; a first intra predictor responsive to when the adaptive filtering is determined by the reference pixel characteristics extractor to be applied for comparing between results of performing intra prediction using high-frequency filtered reference pixel and intra prediction using high-frequency-unfiltered reference pixel to output the cost-efficient result along with filtering information indicating whether to perform filtering; and a second intra predictor for outputting the result of performing the intra prediction using the high-frequency-unfiltered reference pixel when the reference pixel characteristics extractor determines that the adaptive filtering is not to be applied.
    • 本公开涉及使用帧内预测的编码和解码装置和方法。 编码装置包括:参考像素特征提取器,用于接收包括在目标块的相邻块中的参考像素,以编码以确定参考像素特性,并且基于参考来确定自适应滤波是否被应用于参考像素 像素特性; 第一内部预测器响应于何时由参考像素特征提取器确定何时应用于使用高频滤波参考像素执行帧内预测的结果与使用高频非滤波参考像素的帧内预测进行比较,以输出 具有成本效益的结果以及指示是否执行过滤的过滤信息; 以及第二帧内预测器,用于当参考像素特征提取器确定不应用自适应滤波时,使用高频未滤波的参考像素输出执行帧内预测的结果。
    • 96. 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。
    • 97. 发明申请
    • ENCODING AND DECODING DEVICE AND METHOD USING INTRA PREDICTION
    • 编码和解码设备和使用内部预测的方法
    • US20130215958A1
    • 2013-08-22
    • US13819153
    • 2011-08-26
    • Jinhan SongJeongyeon LimYoonsik ChoeYonggoo KimYung Ho ChoiJi Hong Kang
    • Jinhan SongJeongyeon LimYoonsik ChoeYonggoo KimYung Ho ChoiJi Hong Kang
    • H04N7/26
    • H04N19/11H04N19/117H04N19/147H04N19/176H04N19/182H04N19/50H04N19/61
    • The present disclosure relates to encoding and decoding apparatus and method using intra prediction. The encoding apparatus includes a reference pixel characteristics extractor for receiving reference pixel(s) included in neighboring blocks of a target block to encode to determine a reference pixel characteristic and determining whether adaptive filtering is applied to the reference pixel(s), based on reference pixel characteristic; a first intra predictor responsive to when the adaptive filtering is determined by the reference pixel characteristics extractor to be applied for comparing between results of performing intra prediction using high-frequency filtered reference pixel and intra prediction using high-frequency-unfiltered reference pixel to output the cost-efficient result along with filtering information indicating whether to perform filtering; and a second intra predictor for outputting the result of performing the intra prediction using the high-frequency-unfiltered reference pixel when the reference pixel characteristics extractor determines that the adaptive filtering is not to be applied.
    • 本公开涉及使用帧内预测的编码和解码装置和方法。 编码装置包括:参考像素特征提取器,用于接收包括在目标块的相邻块中的参考像素,以编码以确定参考像素特性,并且基于参考来确定自适应滤波是否被应用于参考像素 像素特性; 第一内部预测器响应于何时由参考像素特征提取器确定何时应用于使用高频滤波参考像素执行帧内预测的结果与使用高频非滤波参考像素的帧内预测进行比较,以输出 具有成本效益的结果以及指示是否执行过滤的过滤信息; 以及第二帧内预测器,用于当参考像素特征提取器确定不应用自适应滤波时,使用高频未滤波的参考像素输出执行帧内预测的结果。