# US 2014/0192879 A1 · Captured Image Compression Transmission Method And Captured Image Compression Transmission System > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0192879 A1 - Document ID: US20140192879A1 - Status: Published application - Kind: A1 - Application number: 14/241,034 - Filed: 2012-08-22 - Published: 2014-07-10 - Earliest claimed: 2011-09-01 - Assignees: NEC Corporation - Inventors: Yoichi Nakamura - Web page: https://patentgrep.com/patent/US20140192879A1 ## CPC - H04N 19/503: involving temporal prediction (adaptive coding with adaptive selection between spatial and temporal predictive coding H04N19/107; adaptive coding with adaptive selection among a plurality of temporal predictive coding modes H04N19/109) - H04N 19/507: using conditional replenishment - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract Provided is a captured image compression transmission system comprising: a sending-side system which compresses an input image and sends the compressed image data; and a receiving-side system which restores the input image on the basis of the image data received from the sending-side system; wherein the sending-side system comprises: a sending-side storage unit which stores a plurality of reference images; a sending-side image selection unit which, in accordance with the degree of priority of information included in capturing information attached to an input image, selects reference images corresponding to the information in a stepwise manner from the sending-side storage unit, and thereby specifies one reference image; a differential image compression unit which acquires differential data between the reference image specified by the sending-side image selection unit and the input image, and compresses the differential data; and a transmission unit which sends the compressed differential data to the receiving-side system. ## Claims ### Claim at position 1 1-10. (canceled) ### Claim 11 A captured image compression transmission system including a sending-side system which compresses an input image and sends the compressed image data and a receiving-side system which restores the input image on the basis of the image data received from the sending-side system; wherein the sending-side system comprises: a sending-side storage unit which stores a plurality of reference images; a sending-side image selection unit which selects reference images corresponding to the information in a stepwise manner from the sending-side storage unit in accordance with the degree of priority of information included in capturing information attached to an input image, and thereby specifies one reference image; a differential image compression unit which acquires differential data between the reference image specified by the sending-side image selection unit and the input image, and compresses the differential data; and a transmission unit which sends the compressed differential data to the receiving-side system. ### Claim 12 (depends on 11) The captured image compression transmission system according to claim 11, wherein the receiving-side system comprises: a reception unit which receives the compressed differential data from the sending-side system; a receiving-side storage unit which stores a plurality of reference images; a receiving-side image selection unit which selects reference images corresponding to the information in a stepwise manner from the receiving-side storage unit in accordance with the degree of priority of information included in capturing information attached to the differential data, and thereby specifies one reference image; and an image restoration unit which decompresses the differential data on the basis of the reference image specified by the receiving-side image selection unit. ### Claim 13 (depends on 12) The captured image compression transmission system according to claim 12, wherein: the capturing information includes capturing position information representing a capturing position and capturing environment information representing a capturing environment whose degree of priority is lower than that of the capturing position information; and the sending-side image selection unit and the receiving-side image selection unit comprise, respectively: a sending-side image group selection section and a receiving-side image group selection section which each select a group of reference images corresponding to the capturing position information from, respectively, the sending-side storage unit and the receiving-side storage unit; and a sending-side image specification section and a receiving-side image specification section which each specify a reference image corresponding to the capturing environment information from among the group of reference images. ### Claim 14 (depends on 13) The captured image compression transmission system according to claim 13, wherein, if the data size of created differential data is larger than a predefined data size value determined in advance, the differential image compression unit causes the sending-side image specification section to specify another reference. ### Claim 15 (depends on 13) The captured image compression transmission system according to claim 13, wherein the transmission unit or the reception unit acquires external information complementing the capturing information from outside, and causes the sending-side image specification section or the receiving-side image specification section, respectively, to specify a reference image on the basis of the external information. ### Claim 16 (depends on 11) The captured image compression transmission system according to claim 11, wherein the differential image compression unit or the image restoration unit updates the reference images stored in the sending-side storage unit or the receiving-side storage unit, respectively, with another input image. ### Claim 17 A captured image compression transmission method used for a captured image compression transmission system including a sending-side system which compresses an input image and sends the compressed image data and a receiving-side system which restores the input image on the basis of the image data received from the sending-side system comprising: a sending-side storage process for storing a plurality of reference images; a sending-side image selection process for selecting reference images corresponding to the capturing information in a stepwise manner from among the reference images stored in the sending-side storage process in accordance with the degree of priority of information included in capturing information attached to an input image and thereby specifies one reference image; a differential image compression process for acquiring differential data between the reference image specified in the sending-side image selection process and the input image, and compresses the differential data; and a transmission process for sending the compressed differential data to the receiving-side system. ### Claim 18 (depends on 17) The captured image compression transmission method according to claim 17 further comprising: a reception process for receiving the compressed differential data from the sending-side system; a receiving-side storage process for storing a plurality of reference images; a receiving-side image selection process for selecting reference images corresponding to the information in a stepwise manner from among the reference images stored in the receiving-side storage process in accordance with the degree of priority of information included in capturing information attached to the differential data, and thereby specifies one reference image; and an image restoration process for decompressing the differential data on the basis of the reference image specified in the receiving-side image selection process. ### Claim 19 (depends on 18) The captured image compression transmission method according to claim 18, wherein: the capturing information includes capturing position information representing a capturing position and capturing environment information representing a capturing environment whose degree of priority is lower than that of the capturing position information; and the sending-side image selection process and the receiving-side image selection process comprise, respectively: a sending-side image group selection process and a receiving-side image group selection process which each select a group of reference images corresponding to the capturing position information; and a sending-side image specification process and a receiving-side image specification process which each specify a reference image corresponding to the capturing environment information from among the group of reference images. ### Claim 20 (depends on 19) The captured image compression transmission method according to claim 19, wherein the differential image compression process includes a process which causes the sending-side image specification process to specify another reference image from among the group of reference images when the data size of created differential data is larger than a reference size value determined in advance. ### Claim 21 (depends on 19) The captured image compression transmission method according to claim 19, wherein the transmission process or the reception process acquires external information complementing the capturing information from outside, and causes the sending-side image specification process or the receiving-side image specification process, respectively, to specify a reference image on the basis of the external information. ### Claim 22 (depends on 17) The captured image compression transmission method according to claim 17, wherein the differential image compression process or the image restoration process includes a process which updates the reference images stored in the sending-side storage process or the receiving-side storage process, respectively, with another input image.