# US 12,112,543 B2 · Monitoring device, monitoring method, and recording medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,112,543 B2 - Document ID: US12112543B2 - Status: Granted - Kind: B2 - Application number: 18/230,516 - Filed: 2023-08-04 - Published: 2023-11-23 - Granted: 2024-10-08 - Earliest claimed: 2019-01-11 - Assignees: NEC Corporation - Applicants: NEC Corporation - Inventors: Yuta Kudo - Web page: https://patentgrep.com/patent/US12112543B2 ## CPC - G06V 20/52: Surveillance or monitoring of activities, e.g. for recognising suspicious objects (recognising microscopic objects G06V20/69) - G06T 7/20: Analysis of motion (motion estimation for coding, decoding, compressing or decompressing digital video signals H04N19/43, H04N19/51) - G06T 7/70: Determining position or orientation of objects or cameras (camera calibration G06T7/80) - G06V 40/10: Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands - G08B 25/00: Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems - H04N 7/183: {for receiving images from a single remote source} - H04N 7/188: {Capturing isolated or intermittent images triggered by the occurrence of a predetermined event, e.g. an object reaching a predetermined position (signal generation from motion picture films H04N5/253)} - G06T 2207/30196: Human being; Person - G06T 2207/30232: Surveillance - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract To present a region which is not fully monitored, provided is a monitoring device comprising a detection means, an estimation means, a determination means, and a presentation means. The detection means detects a person from an image. The estimation means estimates a region which is being viewed by the person who is detected by the detection means. On the basis of the region estimated by the estimation means, the determination means determines a region which requires special attention within a monitoring area. The presentation means presents information indicating the region which requires special attention determined by the determination means. ## Claims ### Claim 1 A monitoring device comprising: a memory; and at least one processor coupled to the memory, the at least one processor performing operations to: detect a person from an image captured a monitoring area; estimate a region that is being viewed by the detected person; determine, as a region that requires special attention, a predetermined region that has not been estimated as the region that is being viewed by the detected person within a predetermined time since the person has been detected from the image; and present information indicating the determined region that requires special attention. ### Claim 2 (depends on 1) The monitoring device according claim 1, wherein the at least one processor further performs the operations to: determine, as the region that requires special attention, a region different from the estimated region among the monitoring area. ### Claim 3 (depends on 1) The monitoring device according claim 1, wherein the image is captured by one or more cameras; and the at least one processor further performs the operations to: determine, as the region that requires special attention, a specific region different from the estimated region and that is out of field of view of the monitoring area. ### Claim 4 (depends on 1) The monitoring device according claim 1, wherein the at least one processor further performs the operations to: display a map indicating the region that requires special attention within the monitoring area. ### Claim 5 (depends on 4) The monitoring device according claim 4, wherein the at least one processor further performs the operations to: changeably display the map indicating the region that requires special attention according to movement of the detected person. ### Claim 6 (depends on 4) The monitoring device according claim 4, wherein the at least one processor further performs the operations to: changeably display the map indicating the region that requires special attention according to direction of the detected person. ### Claim 7 (depends on 4) The monitoring device according claim 4, wherein the at least one processor further performs the operations to: changeably display the map to the region that requires special attention. ### Claim 8 A monitoring method performed by a computer and comprising: detecting a person from an image captured a monitoring area; estimating a region that is being viewed by the detected person; determining, as a region that requires special attention, a predetermined region that has not been estimated as the region that is being viewed by the detected person within a predetermined time since the person has been detected from the image; and presenting information indicating the determined region that requires special attention. ### Claim 9 (depends on 8) The monitoring method according to claim 8, wherein the monitoring method comprises: determining, as the region that requires special attention, a region different from the estimated region among the monitoring area. ### Claim 10 (depends on 8) The monitoring method according to claim 8, wherein the monitoring method comprises: determining, as the region that requires special attention, a specific region different from the estimated region and that is out of field of view of the monitoring area. ### Claim 11 (depends on 8) The monitoring method according to claim 8, wherein the monitoring method comprises: displaying a map indicating the region that requires special attention within the monitoring area. ### Claim 12 (depends on 11) The monitoring method according to claim 11, wherein the monitoring method comprises: changeably displaying the map indicating the region that requires special attention according to movement of the detected person. ### Claim 13 (depends on 11) The monitoring method according to claim 11, wherein the monitoring method comprises: changeably displaying the map indicating the region that requires special attention according to direction of the detected person. ### Claim 14 (depends on 11) The monitoring method according to claim 11, wherein the monitoring method comprises: changeably display the map to the region that requires special attention. ### Claim 15 A non-transitory recording medium storing a program for causing a computer to execute: detecting a person from an image captured a monitoring area; estimating a region that is being viewed by the detected person; determining, as a region that requires special attention, a predetermined region that has not been estimated as the region that is being viewed by the detected person within a predetermined time since the person has been detected from the image; and presenting information indicating the determined region that requires special attention. ### Claim 16 (depends on 15) The non-transitory recording medium according to claim 15, wherein the program causes the computer to execute: determining, as the region that requires special attention, a region different from the estimated region among the monitoring area. ### Claim 17 (depends on 15) The non-transitory recording medium according to claim 15, wherein the program causes the computer to execute: determining, as the region that requires special attention, a specific region different from the estimated region and that is out of field of view of the monitoring area. ### Claim 18 (depends on 15) The non-transitory recording medium according to claim 15, wherein the program causes the computer to execute: displaying a map indicating the region that requires special attention within the monitoring area. ### Claim 19 (depends on 18) The non-transitory recording medium according to claim 18, wherein the program causes the computer to execute: changeably displaying the map indicating the region that requires special attention according to movement of the detected person. ### Claim 20 (depends on 18) The non-transitory recording medium according to claim 18, wherein the program causes the computer to execute: changeably displaying the map indicating the region that requires special attention according to direction of the detected person.