Patent ID: 8483280
Filing Date: 2013-07-09
Classification: H03M,H04N

Abstract:
1. An encoding method for adaptively carrying out field-based or frame-based encoding processing at a macroblock level with image information, the encoding method comprising: performing an orthogonal transform to the image information to generate a transform coefficient; quantizing the transform coefficient; generating a context model corresponding to a syntax element for carrying out the frame-based or the field-based encoding processing, wherein the context model corresponding to motion vector information of a current macroblock is generated based on a sum of an absolute value of motion vector information of macroblocks neighboring the current macroblock, and if the current macroblock is subject to the field-based encoding and a neighboring macroblock is subject to frame-based encoding, the motion vector information corresponding to the neighboring macroblock is calculated by converting the vertical component of the motion vector information corresponding to the neighboring macroblock to the equivalent for field-based encoding and is applied to the context model corresponding to the motion vector information of current macroblock; and performing the encoding processing using the generated context model corresponding to the motion vector information of the current macroblock and the quantized transform coefficient.