Patent ID: 8948243
Filing Date: 2015-02-03
Classification: H04N

Abstract:
1. An image encoding device which carries out compression encoding on each predetermined block of an inputted image by using a motion-compensated prediction, said image encoding device comprising: a motion detecting unit for detecting a motion vector of said block; a first prediction image generating unit for generating a first prediction image by using the motion vector detected by said motion detecting unit; a memory for holding a motion vector detected by said motion detecting unit; a second prediction image generating unit for generating a second prediction image by using a motion vector of a block to be encoded which is generated on a basis of the motion vector held by said memory; an encoding unit for encoding a difference image which is a difference between the first prediction image generated by said first prediction image generating unit and an image of the block to be encoded while encoding the motion vector used for the generation of said first prediction image; a local decoding unit for generating a local decoded image of said difference image, and for adding said local decoded image to said first prediction image to generate a local decoded image; and a filtering unit for carrying out a smoothing process on a block boundary in the second prediction image generated by said second prediction image generating unit, wherein said image encoding device selects either the first local decoded image of said block which is acquired by said local decoding unit or an image acquired by said filtering unit as a local decoded image in a predetermined image area which consists of one or more of said blocks, and multiplexes a result of the selection into a bitstream and carries out encoding transmission of this bitstream.