摘要:
A moving image receiving apparatus has a moving image decoding apparatus (303) for decoding received moving image data. The moving image decoding apparatus (303) comprises: a media buffer (401) for storing moving image data; an intra-map memory (402) for storing an intra-map indicating a location of an intrablock included in an interframe of the moving image data; a pseudo intraframe generator (404) that, based on an intra-map stored in the intra-map memory (402), extracts an image of an intrablock included in an interframe in order from a latest interframe accumulated in the media buffer (401), combines images of intrablocks extracted from a plurality of interframes, and thereby generates a pseudo intraframe; and a decoder (406) that starts to decode moving image data, using a pseudo intraframe. The moving image receiving apparatus can thus decode received moving image data from an arbitrary frame.
摘要:
A moving image receiving apparatus has a moving image decoding apparatus (303) for decoding received moving image data. The moving image decoding apparatus (303) comprises: a media buffer (401) for storing moving image data; an intra-map memory (402) for storing an intra-map indicating a location of an intrablock included in an interframe of the moving image data; a pseudo intraframe generator (404) that, based on an intra-map stored in the intra-map memory (402), extracts an image of an intrablock included in an interframe in order from a latest interframe accumulated in the media buffer (401), combines images of intrablocks extracted from a plurality of interframes, and thereby generates a pseudo intraframe; and a decoder (406) that starts to decode moving image data, using a pseudo intraframe. The moving image receiving apparatus can thus decode received moving image data from an arbitrary frame.
摘要:
A moving image receiving apparatus has a moving image decoding apparatus (303) for decoding received moving image data. The moving image decoding apparatus (303) comprises: a media buffer (401) for storing moving image data; an intra-map memory (402) for storing an intra-map indicating a location of an intrablock included in an interframe of the moving image data; a pseudo intraframe generator (404) that, based on an intra-map stored in the intra-map memory (402), extracts an image of an intrablock included in an interframe in order from a latest interframe accumulated in the media buffer (401), combines images of intrablocks extracted from a plurality of interframes, and thereby generates a pseudo intraframe; and a decoder (406) that starts to decode moving image data, using a pseudo intraframe. The moving image receiving apparatus can thus decode received moving image data from an arbitrary frame.
摘要:
When a switching target device receives a media output indication from a sender device, a switch (401) connects with contact B, which causes all image data stored in an extended media buffer (402) to be inputted in a decoder (201), starting from the first frame (which is an I-frame) of the image data. The decoder (201) decodes the image data, starting from the I-frame, and stores a reconstructed image in a reconstructed-image buffer (202). A reconstructed image required for decoding video picture data outputted from a media buffer (2108) is held in the reconstructed-image buffer (202). Thus, when device switching occurs, the decoder (201) can immediately start decoding regardless of whether video picture data inputted from the media buffer (2108) is an intraframe.
摘要:
When a switching target device receives a media output indication from a sender device, a switch connects with contact B, which causes all image data stored in an extended media buffer to be inputted in a decoder, starting from the first frame (which is an I-frame) of the image data. The decoder decodes the image data, starting from the I-frame, and stores a reconstructed image in a reconstructed-image buffer. A reconstructed image required for decoding video picture data outputted from a media buffer is held in the reconstructed-image buffer. Thus, when device switching occurs, the decoder can immediately start decoding regardless of whether video picture data inputted from the media buffer is an intraframe.
摘要:
Image coding equipment wherein no sense of incongruity occurs when domains whose image quality should be improved are selected. To the domains selected with the domain selection section 111, the gradual coding parameter calculation section 112 computes the quantization values so that the quality of image may improve gradually toward the central part from the outside of the selected domain, and a picture is coded based on the value of such a parameter.
摘要:
An apparatus for compressing an uncompressed motion picture to generate compressed motion picture data, and also for generating and including rate correction data to be used by another apparatus to change the bit rate of the compressed motion picture data without decoding all of the encoded packets in the compressed motion picture data.
摘要:
A server (101) streams data coded by inter-frame prediction. The server (101) comprises: a transmission data generator (116) for causing an independently decodable key frame to be added with at least one difference frame following the key frame to create data of one transmission unit, and generating a buffering key frame added with information on the data of one transmission unit, the information including a frame number; and an output unit (114) for transmitting, with transmission timing of the key frame, a buffering key frame generated with a key frame that should be transmitted with the transmission timing, and transmitting an arbitrary frame with transmission timing of the difference frame. This can reduce buffering time for switching a terminal to play a stream between a plurality of terminals, allowing the switching to be done smoothly.
摘要:
A transfer-source terminal, a communication-destination terminal, and a nearby terminal existing in the neighborhood of transfer-source terminal are provided. The nearby terminal collects connectivity information for monitoring connectivity after terminal switching by performing a communication process with the communication-destination terminal, and transmits the connectivity information collected to the transfer-source terminal. The transfer-source terminal receives connectivity information from the nearby terminal by a connectivity information receiving unit, determines a transfer-destination terminal from among the nearby terminals according to connectivity information by a transfer-destination terminal determinating unit, and transfers a communication session with a communication-destination terminal to the transfer-destination terminal determined, by a session transferring unit.
摘要:
A multimedia title including sources of plural data-types such as a motion picture, still picture and text data, presentation methods of respective sources, and the data-types is edited in every frame, so that a video signal is created. Based on a scenario, the video signal is coded adaptively to respective data-types of each source. As a result, calculation volume is reduced and picture quality is improved.