Abstract: The video coding device is a video coding device capable of executing a predictive coding process including a specific process in which a coded frame of a different resolution from a resolution of a frame to be processed is used as a reference frame, and includes a coding unit which executes the predictive coding process, and a controller which prohibits, in the predictive coding process, execution of a first process which uses information, which is determined based on a spatial position of the block to be coded, on blocks in frames at different times, a second process which performs correction using information computed when decoding is performed, or both the first process and the second process.

Abstract: In order to make it possible to perform compression encoding of video more quickly and by an easier method, processing relating to the compression encoding of the video that has a greater speed-increasing effect due to parallel processing is performed by a parallel processing device that can execute the parallel processing more rapidly than a CPU, processing with a high computational load and processing that requires high-speed processing based on sequential processing are performed by a sequential processing device that can execute the sequential processing more rapidly than the CPU, and processing that involves a higher frequency of alteration of content of an algorithm is performed by the CPU.

Abstract: The moving image encoding device maintains high encoding efficiency and performs encoding to reduce flicker occurrence in reproducing a moving image in moving image encoding processing by including an acquisition unit acquiring a succeeding frame of the target frame in encoding frame order when an encoding target frame is the inter picture in encoding a moving image including frames for which an intra or inter picture is determined; a determination unit determining whether an occurrence degree of flicker presumed in decoding the encoded moving image satisfies a criterion, based on characteristics of the target frame and the succeeding frame; and a generation unit 53 generating, when the determination result indicates that the criterion is satisfied, as a prediction target image used in encoding the target frame, a provisional prediction image based on the succeeding frame and a reference frame referred to by the target frame.

Abstract: The moving image encoding device maintains high encoding efficiency and performs encoding to reduce flicker occurrence in reproducing a moving image in moving image encoding processing by including an acquisition unit acquiring a succeeding frame of the target frame in encoding frame order when an encoding target frame is the inter picture in encoding a moving image including frames for which an intra or inter picture is determined; a determination unit determining whether an occurrence degree of flicker presumed in decoding the encoded moving image satisfies a criterion, based on characteristics of the target frame and the succeeding frame; and a generation unit 53 generating, when the determination result indicates that the criterion is satisfied, as a prediction target image used in encoding the target frame, a provisional prediction image based on the succeeding frame and a reference frame referred to by the target frame.

Abstract: Provided is a moving image coding device capable of executing coding processing including stable rate control processing at high speed without greatly increasing computation amount.

Abstract: Provided is an information compression device or the like which is capable of compressing information required for encoding processing to a smaller size. The information compression device calculates a number of non-zero blocks having a value equal or greater than a predetermined value, determine a position for storing the non-zero blocks in a memory, and store only the non-zero blocks to a memory area in accordance with the determined position.

Abstract: A motion vector searching apparatus includes: a memory that stores a set of instructions, and stores a first motion vector selected as a motion vector for each of blocks into which an input image is divided; and at least one processor configured to execute the set of instructions to: generate candidate vectors on a basis of a predetermined search area; calculate ratings of the generated candidate vectors on a basis of the first motion vector for each of adjacent blocks, the generated candidate vectors, the input image and the reference image, the adjacent blocks being the blocks that are included in the input image and located around an object block; and select as a second motion vector of the object block a candidate vector based on the ratings from among the candidate vectors.

Abstract: Provided is an information compression device or the like which is capable of compressing information required for encoding processing to a smaller size. The information compression device calculates a number of non-zero blocks having a value equal or greater than a predetermined value, determine a position for storing the non-zero blocks in a memory, and store only the non-zero blocks to a memory area in accordance with the determined position.

Abstract: Provided is a moving image coding device capable of executing coding processing including stable rate control processing at high speed without greatly increasing computation amount.

Abstract: When searching the motion in a video image, According to the present invention, it is possible to calculate a large number of motion vectors in parallel and to improve motion vector accuracy. A motion estimation device is a motion estimation device for predicting a vector by referring to the motion vector of adjacent blocks is provided with a plurality of motion estimating units which process adjacent blocks in parallel. Each motion estimating unit is provided with a pseudo predicted motion vector calculating unit for calculating a pseudo predicted motion vector by using the motion vector of a group of processed blocks, and a motion vector searching unit for searching the motion vector of a block to be processed by using the calculated pseudo predicted motion vector.

Abstract: Provided is a motion vector searching apparatus capable of improving a degree of parallelism in parallel processing for a motion vector search without reducing accuracy of a motion vector.

Abstract: A dynamic image distribution system manages compression-encoded dynamic images as a group of tiles, each containing at least one macro block. The dynamic image distribution system is provided with: a transmitter for managing the display region of the dynamic image and, on the basis of the display region, reads a tile from the stored group of tiles and subjects the tile to correction processing, before synthesizing and transmitting a dynamic image bit stream of one frame from the processed tile; and a receiver for receiving and decoding the dynamic image bit stream, displaying the decoded dynamic image, inputting a user operation and transmitting the user operation to the transmitter.

Abstract: A slice division structure control unit (430) determines a slice division structure indicating a division position for dividing each picture into multiple slices. A pre-stage processing unit (410) performs pre-stage processing of encoding for each of multiple slice division structures that can be determined by the slice division structure control unit (430), and obtains processing results for each of the multiple slice division structures. A post-stage processing unit (420) selects, from among the processing results for each of the multiple slice division structures obtained by the pre-stage processing unit (410), a processing result matching a slice division structure (S) determined by the slice division structure control unit (430), and performs post-stage processing for encoding the picture based on the selected processing result.

Abstract: Disclosed is a moving image reproduction apparatus including a stream extraction unit that extracts a bit stream of a prescribed number of consecutive pictures including an intra-frame coded picture as an initial picture from a bit stream of a coded moving image, a stream analysis unit that analyzes the extracted bit stream and decides whether or not, if decoding of the extracted bit stream is performed, one screen of decoded image including the intra-frame coded picture can be obtained, and a stream generation unit that generates a bit stream which complements an image of a region in which a decoded image cannot be obtained in one screen, based on a result of the analysis made by the stream analysis unit, when it is decided in the stream analysis unit that one screen of decoded image cannot be obtained.

Abstract: There are provided an analysis unit that analyzes an input bit stream to output first intermediate data and analysis information, a conversion rule storage unit that stores a conversion rule, according to which an error-detected bit stream included in the analysis information output from the analysis unit or a bit stream including reference information to an image used for a method not supported by a decoding unit is converted into a bit stream decodable by the decoding unit, and a conversion unit that converts the analysis information into second intermediate data according to the conversion rule, as well as the decoding unit that decodes the first intermediate data and the second intermediate data output from the analysis unit and the conversion unit. Thus, even when the decoding unit does not cope with specific information included in the analysis information, the decoding unit is able to stably perform a decoding procedure.

Abstract: A slice division structure control unit (430) determines a slice division structure indicating a division position for dividing each picture into multiple slices. A pre-stage processing unit (410) performs pre-stage processing of encoding for each of multiple slice division structures that can be determined by the slice division structure control unit (430), and obtains processing results for each of the multiple slice division structures. A post-stage processing unit (420) selects, from among the processing results for each of the multiple slice division structures obtained by the pre-stage processing unit (410), a processing result matching a slice division structure (S) determined by the slice division structure control unit (430), and performs post-stage processing for encoding the picture based on the selected processing result.

Abstract: There are included: an extraction unit that extracts a first bit stream of a picture that is decodable by itself and a second bit stream of a picture whose image data part is decodable by itself but a part other than the image data part is not decodable by itself from a coded bit stream of a moving image; and a conversion unit that converts the second bit stream extracted by the extraction unit into a third bit stream of a picture that is decodable by itself, the first bit stream of the picture extracted by the extraction unit and the third bit stream being arranged and output in order of extraction or in reverse order to that of extraction.

Abstract: When searching the motion in a video image, According to the present invention, it is possible to calculate a large number of motion vectors in parallel and to improve motion vector accuracy. A motion estimation device is a motion estimation device for predicting a vector by referring to the motion vector of adjacent blocks is provided with a plurality of motion estimating units which process adjacent blocks in parallel. Each motion estimating unit is provided with a pseudo predicted motion vector calculating unit for calculating a pseudo predicted motion vector by using the motion vector of a group of processed blocks, and a motion vector searching unit for searching the motion vector of a block to be processed by using the calculated pseudo predicted motion vector.

Abstract: [Problem] To provide a dynamic image distribution system, dynamic image distribution method, and dynamic image distribution program enabling the arbitrary setting of a viewing range for compression-encoded dynamic images and the interactive modification of the viewing range. [Solution] A dynamic image distribution system manages compression-encoded dynamic images as a group of tiles, each containing at least one macro block. The dynamic image distribution system is provided with: a transmitter for managing the display region of the dynamic image and, on the basis of the display region, reads a tile from the stored group of tiles and subjects the tile to correction processing, before synthesizing and transmitting a dynamic image bit stream of one frame from the processed tile; and a receiver for receiving and decoding the dynamic image bit stream, displaying the decoded dynamic image, inputting a user operation and transmitting the user operation to the transmitter.

Abstract: A transmission device includes: a bit stream storage unit for transforming video signals into a plurality of bit streams having different bit rates in advance and storing those; a receiving device information acquisition unit which acquires information pertaining to a receiving device from the receiving device; a selection control unit which determines the bit rate and the variable-length encoding method for the bit stream transmitted to the receiving device; and a transmission unit which transmits, to the receiving device, the bit stream having the bit rate and the variable-length encoding method determined by the selection control unit. The selection control unit determines the bit rate and the variable-length encoding method so that the amount of the video image data before being subjected to variable-length encoding is at the maximum and so that the bit rate is within the maximum bit rate which can be processed by the receiving device.