Abstract: A motion compensator includes a divider, a frame memory transfer controller, and a motion compensation processor. Based on information about a coding unit CU and prediction unit PU provided by a decoder, the divider determines whether or not to divide the PU. Next, based on a motion vector of the PU yet to be divided, reference image information, and information about divided blocks locations, the frame memory transfer controller determines the storage location of the reference image of a reference picture in a frame memory on the basis of each of the blocks divided, thereby obtaining reference image data. The motion compensation processor performs motion compensation operation on a motion compensation control block basis to generate a predicted image. Then, a reconstructor obtains a restored image based on a residual image generated by an inverse frequency transformer.

Abstract: A motion compensator includes a divider, a frame memory transfer controller, and a motion compensation processor. Based on information about a coding unit CU and prediction unit PU provided by a decoder, the divider determines whether or not to divide the PU. Next, based on a motion vector of the PU yet to be divided, reference image information, and information about divided blocks locations, the frame memory transfer controller determines the storage location of the reference image of a reference picture in a frame memory on the basis of each of the blocks divided, thereby obtaining reference image data. The motion compensation processor performs motion compensation operation on a motion compensation control block basis to generate a predicted image. Then, a reconstructor obtains a restored image based on a residual image generated by an inverse frequency transformer.

Abstract: A video decoding apparatus includes: a decoding unit which derives a flag regarding a motion vector from an encoded video stream; a comparing unit which determines whether or not motion vectors of adjacent blocks are equal to each other; a block combining unit which combines the adjacent blocks determined as being equal in motion vector, into one motion compensation block on which motion compensation is to be performed; a motion vector generating unit which generates a motion vector; a reference image obtaining unit which obtains a reference image corresponding to the motion compensation block from reference image data stored in a memory; a motion compensating unit which generates a prediction image corresponding to the motion compensation block; and an adder which reconstructs an image using the prediction image generated by the motion compensating unit.

Abstract: A mutliview video decoding apparatus including: a decoding unit which decodes one of coded videos without reference to a coded video to generate one of decoded videos, and decodes an other one of coded videos with reference to the one of the coded videos to generate an other one of decoded videos; an error detecting unit which detests an error-source image in the decoded videos; and a decoded image replacing unit which replaces the error-source image with an image generated using a previous image that is decoded before the error-source image, without using the second decoded video that is other than the first decoded video that includes the error-source image, and replaces an associated error image that is associated with the error-source image with an image generated using an associated previous image that is associated with the error-source image, without using the first decoded video.

Abstract: A mutliview video decoding apparatus including: a decoding unit which decodes one of coded videos without reference to a coded video to generate one of decoded videos, and decodes an other one of coded videos with reference to the one of the coded videos to generate an other one of decoded videos; an error detecting unit which detests an error-source image in the decoded videos; and a decoded image replacing unit which replaces the error-source image with an image generated using a previous image that is decoded before the error-source image, without using the second decoded video that is other than the first decoded video that includes the error-source image, and replaces an associated error image that is associated with the error-source image with an image generated using an associated previous image that is associated with the error-source image, without using the first decoded video.

Abstract: A data transfer request of a data pro cessing device with respect to a synchronous memory is divided by a burst transfer length unit request dividing section into a plurality of data transfer requests in which a data transfer amount is an amount of data to be burst-transferred at a time and the data to be burst-transferred at a time is within a single memory bank. An assembling section assembles the divided data transfer requests into a plurality of new data transfer requests obtained by combining the divided data transfer requests, one for each memory bank. A data processing device can efficiently access continuous data stored in a plurality of memory banks, and is useful as a memory access control circuit of controlling an access operation of a data processing device with respect to a synchronous memory.

Abstract: A data transfer request of a data processing device with respect to a synchronous memory is divided by a burst transfer length unit request dividing section into a plurality of data transfer requests in which a data transfer amount is an amount of data to be burst-transferred at a time and the data to be burst-transferred at a time is within a single memory bank. An assembling section assembles the divided data transfer requests into a plurality of new data transfer requests obtained by combining the divided data transfer requests, one for each memory bank.