公开(公告)号：EP2557793A1

公开(公告)日：2013-02-13

申请号：EP11765768.4

申请日：2011-03-31

申请人： Sony Corporation

发明人： OGAWA Kazuya

IPC分类号： H04N7/32

CPC分类号： H04N19/426 ,  G06K9/36 ,  H04N19/44 ,  H04N19/59 ,  H04N19/593

摘要： The present disclosure relates to an image processing apparatus and a method therefor capable of reducing the amount of memory required for intra-frame prediction.
The apparatus includes: a sampling unit that performs sampling to thin out pixel values to be used as adjacent pixels in intra-frame prediction according to a size in an horizontal direction of an image to be coded or a size in a vertical direction of regions obtained by dividing the image; a reconstruction unit that performs interpolation by using the pixel values sampled by the sampling unit to reconstruct the adjacent pixels; a predicted image generation unit that performs the intra-frame prediction by using the adjacent pixels reconstructed by the reconstruction unit to generate a predicted image; and a coding unit that codes the image by using the predicted image generated by the predicted image generation unit. The present technology can be applied to an image processing apparatus, for example.

摘要翻译： 本公开涉及能够减少帧内预测所需的存储量的图像处理装置及其方法。 该装置包括：采样单元，用于根据获得的区域中的待编码图像的水平方向上的尺寸或者垂直方向上的尺寸，执行采样以减少要在帧内预测中用作相邻像素的像素值 通过分割图像; 重建单元，其通过使用由采样单元采样的像素值来执行内插以重建相邻像素; 预测图像生成单元，其通过使用由重建单元重建的相邻像素来执行帧内预测以生成预测图像; 以及编码单元，其通过使用由预测图像生成单元生成的预测图像来对图像进行编码。 例如，本技术可以应用于图像处理设备。