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    • 1. 发明授权
    • Method and apparatus for encoding and decoding image data
    • 用于对图像数据进行编码和解码的方法和装置
    • US07995848B2
    • 2011-08-09
    • US11302142
    • 2005-12-14
    • Wooshik KimShinwa LeeDaesung ChoSangjo LeeDmitri Birinov
    • Wooshik KimShinwa LeeDaesung ChoSangjo LeeDmitri Birinov
    • G06K9/36G06K9/46
    • H04N19/184H04N19/103H04N19/105H04N19/126H04N19/176H04N19/503H04N19/593
    • A method and apparatus for encoding and decoding image data. The method of encoding image data includes spatially predicting pixel values of a one-dimensional block of an image using blocks spatially adjacent to the one-dimensional block or temporally predicting the pixel values of the one-dimensional block using a temporally previous frame; transforming and quantizing the pixel values of the one-dimensional block; and generating bit streams for a one-dimensional conversion block when the transformed and quantized one-dimensional block is defined as the one-dimensional conversion block. Therefore, since the method and apparatus encode and decode image data in one-dimensional block units, real-time encoding and decoding can be achieved. In addition, compression efficiency can be enhanced while minimizing visual degradation of image quality.
    • 一种用于对图像数据进行编码和解码的方法和装置。 编码图像数据的方法包括使用与一维块空间相邻的块或使用时间上先前的帧临时预测一维块的像素值来空间预测图像的一维块的像素值; 变换和量化一维块的像素值; 以及当变换和量化的一维块被定义为一维转换块时,生成用于一维转换块的比特流。 因此,由于该方法和装置以一维块为单位对图像数据进行编码和解码,因此可以实现实时编码和解码。 此外,可以提高压缩效率,同时最小化图像质量的视觉劣化。