Patent ID: 8654862
Filing Date: 2014-02-18
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 as an input, the encoding method comprising: generating a context model corresponding to motion vector information of a current macroblock, wherein the context model is generated based on a sum of absolute values of first motion vector information of a first macroblock neighboring the current macroblock and absolute values of second motion vector information of a second macroblock neighboring the current macroblock, and when the current macroblock is subjected to the field-based encoding, the first neighboring macroblock is subjected to frame-based encoding, and the second neighboring macroblock is subjected to frame-based encoding, calculating the second motion vector information corresponding to the second neighboring macroblock by converting a vertical component of the second motion vector information corresponding to the second neighboring macroblock to an equivalent for an encoding type of a first neighboring macroblock, and applying the second motion vector information corresponding to the second neighboring macroblock to the context model corresponding to the motion vector information of the current macroblock; and carrying out the encoding processing using the context model corresponding to the motion vector information of the current macroblock generated in the generating step.