Abstract: A bit rate of encoded moving picture data is converted in a system including a main processor, at least one sub processor and a main memory. In the main processor, a data acquisition unit acquires the encoded moving picture data from the main memory, a data analysis unit analyzes the encoded moving picture data, and an analysis data creation unit creates analysis data based on an analysis result. In the at least one sub processor, an analysis data acquisition unit acquires the analysis data, and a conversion processing unit converts the bit rate of the encoded moving picture data based on the analysis data.

Abstract: A format conversion method comprising decoding the bit stream of a first encoded video data format, converting decoded video data to the second encoded video data format, encoding the converted video data in a process for converting the bit stream of the first encoded video data format to the bit stream of the second encoded video data format, and controlling processing parameters of at least one of the decoding, the converting and the encoding.

Abstract: An image processing apparatus includes a first image converter that performs a first image conversion on an original image and that obtains a converted image, a conversion information generator that generates conversion information determined based on a relationship between the original image and the converted image obtained by the first image converter, and a holding unit that holds the conversion information generated by the conversion information generator and the converted image subjected to the first image conversion while making the conversion information and the converted image correspond to each other.

Abstract: The image coding apparatus is provided to realize image coding with little calculation quantity and through rate distortion optimization thereby maintaining a favorable image quality. The image coding apparatus includes a processing unit that conducts frequency transform and quantization on a block in a predetermined manner for a plurality of coding modes, each mode having a different coding process, a cost calculating unit that calculates a predictive coded quantity and coding distortion in a coding mode using a result of the quantization conducted by the processing unit and a residue to obtain a cost regarding the coding mode, a minimum coding cost selecting unit that selects a minimum coding cost among the coding costs calculated for respective coding modes, and a coding unit that conducts coding on the blocks in a coding mode associated with the minimum coding cost selected by the minimum coding cost selecting unit.

Abstract: A video transcoding method comprises decoding a first bit stream encoded by a first video encoding format to obtain decoded video data and side information, converting the decoded video data and side information into a form suitable for a second video encoding format to obtain converted video data and converted side information, and encoding the converted video data using motion vectors contained in the side information to obtain a second bit stream of the second video encoding format.

Abstract: A motion picture storage apparatus includes: a motion picture input unit which inputs motion picture data; a motion picture storage unit which sequentially stores the motion picture data; a condition storage unit which stores a condition related to a desirable scene previously set by a user; a motion picture analyzing unit configured to analyze the motion picture data stored in the motion picture storage unit to check whether a scene satisfying the condition is present, and configured to acquire specifying information of the scene satisfying the condition when the scene satisfying the condition is present; and an information notifying unit which notifies the specifying information to a device of the user.

Abstract: A coding unit generates a code of each frame of a moving image. A first verification unit calculates a first code quantity predicted to be stored in a buffer if the code were to be supplied to the buffer in a virtual decoding apparatus by a first bit rate. A second verification unit calculates a second code quantity predicted to be stored in the buffer and a change rate of the second code quantity if the code were to be supplied to the buffer in the virtual decoding apparatus by a second bit rate lower than the first bit rate. A control unit changes a coding bit rate of said coding unit based on the first code quantity, the second code quantity, and the change rate.

Abstract: A video encoding apparatus comprises a motion vector detector to detect a motion vector of an input picture referring to a reference picture, and a predictive encoder to perform forward predictive encoding and bidirectional predictive encoding using the motion vector and the reference picture, the forward predictive encoder subjecting the macroblock of the forward predictive encoded picture to a variable length encoding in not_coded mode when a correlation between the macroblocks of the forward and bi-directional predictive encoded pictures and the reference picture which are located at the same position is high.

Abstract: An interlace image signal is converted to a progressive image signal. It is decided whether each pixel of one of the first field and the second field is in a static area or a moving area. If a pixel of one field is in the static area, pixel data of the pixel of the one field and pixel data of a corresponding pixel of the other field are output as pixel data of the same pixels of an odd number line and an even number line in the progressive image. If a pixel of the one field is in the moving area, interpolated data of the pixel of the one field and interpolated data of a corresponding pixel of the other field are output as pixel data of the same pixels of an odd number line and an even number line in the progressive image. The interpolated data is filtered pixel data along temporal direction and spatial direction.

Abstract: A digital watermark embedding apparatus comprises a digital watermark generating unit which transforms embedding target contents by using a filter having a coefficient with a periodic number sequence to generate a digital watermark, and an embedding unit which superposes the digital watermark on the embedding target contents to generate watermark embedded contents.

Abstract: A format conversion method comprising decoding the bit stream of a first encoded video data format, converting decoded video data to the second encoded video data format, encoding the converted video data in a process for converting the bit stream of the first encoded video data format to the bit stream of the second encoded video data format, and controlling processing parameters of at least one of the decoding, the converting and the encoding.

Abstract: A video transcoding method comprises decoding a first bit stream encoded by a first video encoding format to obtain decoded video data and side information, converting the decoded video data and side information into a form suitable for a second video encoding format to obtain converted video data and converted side information, and encoding the converted video data using motion vectors contained in the side information to obtain a second bit stream of the second video encoding format.

Abstract: An audio processor comprises a control device which fetches in, when executing one process, a program and data stream corresponding to next process from an external memory device, an internal memory which stores the program and data stream read from the external memory device and corresponding to the one and next one of the processes, and a processor which subject the input data stream to the process based on the program and data stream read from the internal memory.