TRANSMITTING APPARATUS, RECEIVING APPARATUS, TRANSMITTING METHOD, RECEIVING METHOD AND TRANSPORT SYSTEM
First Claim
1. A transmission device comprising,a video region division processing section for dividing a video region of an input video signal into a specified number of regions, and generating a plurality of region divided video signals corresponding to each of the divided regions;
- an encoding processing section for generating a plurality of video bit streams by encoding the plurality of region divided video signals;
a video bit stream group storage section for storing a plurality of video bit streams that have been generated by the encoding processing section;
a viewpoint information receiving section for receiving viewpoint information, that is transmitted from a receiving device connected by a network to the transmission device, including information on viewing position that has been designated as a region desired to be viewed from among the video regions;
a transmission bit stream generating section, for extracting the video bit stream corresponding to a first region specified by the viewpoint position, and the video bit stream corresponding to a second region which is a peripheral region to the first region, from the video bit stream group storage section, based on the viewpoint information that has been received by the viewpoint information receiving section, and generating a transmission video bit stream; and
a video bit stream transmission section for transmitting the transmission video bit stream that was generated by the transmission bit stream generating section to the receiving device, whereinthe transmission bit stream generating section is configured to execute the following processing, for video bit streams corresponding to mth and nth divided regions that belong to the second region containing the first region, in order to generate the transmission video bit stream;
(1) processing to specify a video bit stream for one line, constituted by a plurality of macroblocks, of the mth divided region, that has been extracted from the video bit stream group storage section;
(2) followed by processing to generate a single stream, being one bit stream, as a transmission bit stream, by specifying a video bit stream for one line constituted by a plurality of macroblocks, of an nth divided region that is adjacent to the mth divided region, and connecting to an end portion of a specified video bit stream for one line that was specified before, where m is an integer greater than or equal to 1, n≠
m, and n=m+1.
2 Assignments
0 Petitions
Accused Products
Abstract
The delivery of the high-definition image signal corresponding to an area a user desires to view can be achieved without increasing the load of processing in a transmitting apparatus. There are included an image area dividing unit (20) for dividing the image area of an input image signal into a given number of areas to generate area division image signals; and a coding unit (30) for coding the area division image signals to generate image bit streams. There are also included an image bit stream group accumulating unit (40) for accumulating a plurality of image bit streams; and a view point information receiving unit (60) for receiving view point information including the information of a view position transmitted from a receiving apparatus (2). Then, it has been arranged that an image bit stream corresponding to a first area defined by a view position and an image bit stream corresponding to a second area that is a peripheral area of the first area be extracted from the image bit stream group accumulating unit (40), thereby generating transport image bit streams to be transmitted to the receiving apparatus (2).
67 Citations
14 Claims
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1. A transmission device comprising,
a video region division processing section for dividing a video region of an input video signal into a specified number of regions, and generating a plurality of region divided video signals corresponding to each of the divided regions; -
an encoding processing section for generating a plurality of video bit streams by encoding the plurality of region divided video signals; a video bit stream group storage section for storing a plurality of video bit streams that have been generated by the encoding processing section; a viewpoint information receiving section for receiving viewpoint information, that is transmitted from a receiving device connected by a network to the transmission device, including information on viewing position that has been designated as a region desired to be viewed from among the video regions; a transmission bit stream generating section, for extracting the video bit stream corresponding to a first region specified by the viewpoint position, and the video bit stream corresponding to a second region which is a peripheral region to the first region, from the video bit stream group storage section, based on the viewpoint information that has been received by the viewpoint information receiving section, and generating a transmission video bit stream; and a video bit stream transmission section for transmitting the transmission video bit stream that was generated by the transmission bit stream generating section to the receiving device, wherein the transmission bit stream generating section is configured to execute the following processing, for video bit streams corresponding to mth and nth divided regions that belong to the second region containing the first region, in order to generate the transmission video bit stream; (1) processing to specify a video bit stream for one line, constituted by a plurality of macroblocks, of the mth divided region, that has been extracted from the video bit stream group storage section; (2) followed by processing to generate a single stream, being one bit stream, as a transmission bit stream, by specifying a video bit stream for one line constituted by a plurality of macroblocks, of an nth divided region that is adjacent to the mth divided region, and connecting to an end portion of a specified video bit stream for one line that was specified before, where m is an integer greater than or equal to 1, n≠
m, and n=m+1. - View Dependent Claims (2, 3, 4, 5, 7, 8)
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6. (canceled)
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9-12. -12. (canceled)
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13. A transmission method used in a transmission device for transmitting data to a receiving device that is connected by a network, comprising:
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a step of dividing a video region of an input video signal into a specified number of regions, and generating a plurality of region divided video signals corresponding to each of the divided regions; a step of generating a plurality of video bit streams by encoding the plurality of region divided video signals; a step of storing a plurality of video bit streams that have been generated by the encoding processing section; a step of receiving viewpoint information, that is transmitted from the receiving device, including information on viewing position that has been designated as a viewing region, from among the video regions; a step of extracting the video bit stream corresponding to a first region specified by the viewing position, and the video bit stream corresponding to a second region which is a peripheral region to the first region, from the video bit stream group that has been stored, based on the viewpoint information, and generating a transmission bit stream; and a step of transmitting the transmission bit stream to the receiving device, wherein, in the step of generating the video bit stream, for video bit streams corresponding to mth and nth divided regions that belong to a second region containing the first region, the following processing is carried out; (1) processing to specify a video bit stream for one line, constituted by a plurality of macroblocks, of the mth divided region; (2) followed by processing to generate a single stream, being one bit stream, as a transmission bit stream, by specifying a video bit stream for one line constituted by a plurality of macroblocks, of an nth divided region that is adjacent to the mth divided region, and connecting to an end portion of a specified video bit stream for one line that was specified before, where m is an integer greater than or equal to 1, n≠
m, and n=m+1.
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14-15. -15. (canceled)
Specification