Adaptive predictive coding system for television signals
Method of performing high efficiency coding of image signal and system therefor
High efficiency encoding and decoding of picture signals and recording medium containing same
Digital video compression utilizing mixed vector and scalar outputs
System and method for coding and/or decoding image-adaptive split region of motion picture
Prediction mode selecting device in moving image coder Patent #: 5859668
ApplicationNo. 984033 filed on 12/02/1997
US Classes:375/240.13, Intra/inter selection348/699, Motion vector generation382/238, Predictive coding386/111Intraframe or interframe
ExaminersPrimary: Britton, Howard W.
Assistant: Le, Vu A.
Attorney, Agent or Firm
International ClassH04N 007/32
AbstractA method for encoding a binary shape signal determines as a mode of a target block a first and a second modes, if errors of the target block with respect to a first and a second reference blocks are not greater than a predetermined threshold, respectively. If the mode is not determined, the target block is motion estimated and compensated, a motion compensation error(MCE) and a motion vector difference(MVD) are calculated and the MVD is encoded if the MVD is not zero. Then the mode of the target block is set to a third mode if the MVD is zero and the MCE is not greater than the threshold and a fourth mode if the MVD is not zero and the MCE is not greater than the threshold. If the mode is not determined, intra-coded data and inter-coded data are generated, and the number of bits of the intra-coded data is compared with the one of the inter-coded data. If the number of bits of the intra-coded data is not greater than the one of the inter-coded data, the mode of the target block is decided to a fifth mode. If the mode is not decided, the mode of the target block is decided to a fifth mode if the MVD is zero and a seventh mode if the MVD is not zero. Encoded data of the target block is generated based on the mode thereof.