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    • 7. 发明公开
    • 인트라 예측 방법 및 장치와 그를 이용한 영상 부호화/복호화 방법 및 장치
    • 内部预测方法和装置和图像编码/解码方法和使用它的装置
    • KR1020130091295A
    • 2013-08-16
    • KR1020130081459
    • 2013-07-11
    • 에스케이텔레콤 주식회사
    • 김하윤이영렬문주희김해광전병우전혜민김대연
    • H04N19/50H04N19/59
    • H04N19/593H04N19/176H04N19/182H04N19/196
    • PURPOSE: An intra prediction method and a device thereof, and an image encoding/decoding method using the same and a device for the same are provided to reduce a difference between an actual block and a predicted block by accurately predicting a current block to be encoded, thereby improving the encoding efficiency. CONSTITUTION: A weighted pixel value calculator (410) applies a weighted values determined by the position of a current pixel of a current block to pixels of ambient blocks, thereby calculating a plurality of weighted pixel values. A predicted pixel value calculator (420) calculates a predicted pixel value of the current pixel by using the weighted pixel value. As first weighted values of the weighted values are applied to a first pixel of an upper block, a first weighted pixel value is calculated among the weighted pixel values. As second weighted values of the weighed values are applied to a second pixel of a left block, a second weighted pixel value is calculated among the weighted pixel values. [Reference numerals] (410) Calculate a weighted pixel value; (420) Predicted pixel value calculation unit
    • 目的:提供帧内预测方法及其装置,以及使用其的图像编码/解码方法及其装置,以通过精确地预测要编码的当前块来减少实际块与预测块之间的差异 ,从而提高编码效率。 构成:加权像素值计算器(410)将由当前块的当前像素的位置确定的加权值应用于环境块的像素,由此计算多个加权像素值。 预测像素值计算器(420)通过使用加权像素值来计算当前像素的预测像素值。 由于将加权值的第一加权值应用于上部块的第一像素,因此在加权像素值之间计算第一加权像素值。 由于将加权值的第二加权值应用于左块的第二像素,所以在加权像素值之间计算第二加权像素值。 (附图标记)(410)计算加权像素值; (420)预测像素值计算单元