# US 10,121,069 B2 · Method of switching video images and surveillance system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,121,069 B2 - Document ID: US10121069B2 - Status: Granted - Kind: B2 - Application number: 15/969,456 - Filed: 2018-05-02 - Published: 2018-09-06 - Granted: 2018-11-06 - Earliest claimed: 2014-09-29 - Assignees: Vivotek Inc. - Applicants: Vivotek Inc. - Inventors: Kai-Min Yang; Shu-Che Weng - Web page: https://patentgrep.com/patent/US10121069B2 ## CPC - G06V 40/10: Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands - G06V 20/52: Surveillance or monitoring of activities, e.g. for recognising suspicious objects (recognising microscopic objects G06V20/69) - G06V 40/173: {face re-identification, e.g. recognising unknown faces across different face tracks} - H04N 7/181: {for receiving images from a plurality of remote sources} - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract The disclosure provides a method of switching video images and a surveillance system. The method includes the following steps. A first video image is displayed in a monitoring interface. Whether a target object in the first video image enters into a designated region in the first video image is determined. Whether a ratio of the targeted object to the first video image is smaller than or equal to a first threshold is determined when the target object enters into the designated region. When the ratio is smaller than or equal to the first threshold, a second video image is displayed in the monitoring interface. The designated region in the first video image is related to a geographic position, and the second video image is a video image related to the geographic position. ## Claims ### Claim 1 A method of switching video images, comprising: displaying a first video image on a monitoring interface; determining whether a target object on the first video image enters into a designated region in the first video image; and displaying a second video image on the monitoring interface selectively according to a ratio of the target object to the second video image. ### Claim 2 (depends on 1) The method according to claim 1, further comprising: determining whether the ratio of the target object to the second video image is larger than or equal to a third threshold when the target object into the designated region; and displaying the second video image on the monitoring interface when the ratio of the target object to the second video image is larger than or equal to the third threshold. ### Claim 3 (depends on 2) The method according to claim 2, wherein displaying the first video image on the monitoring interface is displaying the first video in a first display mode, with the method further comprising: further determining whether the ratio of the target object to the first video image is less than or equal to a second threshold when the target object enters into the designated region; and simultaneously displaying at least one part of the first video image and at least one part of the second video image in a second display mode on the monitoring interface when the ratio of the target object to the first video image is less than or equal to the second threshold and is larger than a first threshold. ### Claim 4 (depends on 3) The method according to claim 3, wherein simultaneously displaying the at least one part of the first video image and the at least one part of the second video image in the second display mode on the monitoring interface comprises: determining whether the target object completely appears in the second video image; and displaying the second video image in the first display mode on the monitoring interface when the target object completely appears in the second video image. ### Claim 5 (depends on 3) The method according to claim 3, wherein simultaneously displaying the at least one part of the first video image and the at least one part of the second video image in the second display mode on the monitoring interface comprises: determining whether a first feature on the target object completely appears in the second video image; and displaying the second video image in the first display mode on the monitoring interface when the first feature on the target object completely appears in the second video image. ### Claim 6 (depends on 3) The method according to claim 3, wherein simultaneously displaying the at least one part of the first video image and the at least one part of the second video image in the second display mode on the monitoring interface comprises: providing a switching notice; and displaying the second video image in the first display mode on the monitoring interface when the switching notice is selected. ### Claim 7 (depends on 2) The method according to claim 2, further comprising: marking the designated region, where the target object enters, in the first video image. ### Claim 8 (depends on 2) The method according to claim 2, wherein when the target object leaves the designated region in the first video image and has not entered into the second video image yet, the first video image is displayed in a first display mode on the monitoring interface. ### Claim 9 (depends on 2) The method according to claim 2, wherein when there is a plurality of objects existing in the first video image, the method further comprises: calculating a characteristic value related to each of the plurality of objects; comparing the characteristic values with each other; and selecting one object, having the maximum characteristic value, among the plurality of objects to be the target object. ### Claim 10 (depends on 9) The method according to claim 9, wherein the plurality of objects is humans, and calculating the characteristic value related to each of the plurality of objects is performed using a face recognition procedure. ### Claim 11 (depends on 2) The method according to claim 2, wherein the first video image and the second video image are obtained from different video capturing devices, respectively. ### Claim 12 (depends on 2) The method according to claim 2, wherein the designated region in the first video image is related to a geographic position, and the second video image is related to a video image related to the geographic position. ### Claim 13 A surveillance system, comprising: a first photographic module configured to capture a first video image; a second photographic module configured to capture a second video image; and a monitoring device, connected to the first photographic module and the second photographic module and configured to receive the first video image and the second video image and perform a method of switching video images, wherein the method comprises: displaying the first video image on a monitoring interface; determining whether a target object on the first video image enters into a designated region in the first video image; and displaying a second video image on the monitoring interface selectively according to a ratio of the target object to the second video image. ### Claim 14 (depends on 13) The system according to claim 13, further comprising: determining whether the ratio of the target object to the second video image is larger than or equal to a third threshold when the target object into the designated region; and displaying the second video image on the monitoring interface when the ratio of the target object to the second video image is larger than or equal to the third threshold. ### Claim 15 (depends on 14) The surveillance system according to claim 14, wherein displaying the first video image on the monitoring interface is displaying the first video in a first display mode, with the method the method further comprises: further determining whether the ratio of the target object to the first video image is less than or equal to a second threshold when the target object enters into the designated region; and simultaneously displaying at least one part of the first video image and at least one part of the second video image in a second display mode on the monitoring interface when the ratio of the target object to the first video image is less than or equal to the second threshold and is larger than a first threshold. ### Claim 16 (depends on 15) The surveillance system according to claim 15, wherein simultaneously displaying the at least one part of the first video image and the at least one part of the second video image in the second display mode on the monitoring interface comprises: determining whether the target object completely appears in the second video image; and displaying the second video image in the first display mode on the monitoring interface when the target object completely appears in the second video image. ### Claim 17 (depends on 15) The surveillance system according to claim 15, wherein simultaneously displaying the at least one part of the first video image and the at least one part of the second video image in the second display mode on the monitoring interface comprises: determining whether a first feature on the target object completely appears in the second video image; and displaying the second video image in the first display mode on the monitoring interface when the first feature on the target object completely appears in the second video image. ### Claim 18 (depends on 15) The surveillance system according to claim 15, wherein simultaneously displaying the at least one part of the first video image and the at least one part of the second video image in the second display mode on the monitoring interface comprises: providing a switching notice; and displaying the second video image in the first display mode on the monitoring interface when the switching notice is selected. ### Claim 19 (depends on 14) The surveillance system according to claim 14, the method further comprises: marking the designated region, where the target object enters, in the first video image. ### Claim 20 (depends on 14) The surveillance system according to claim 14, wherein when the target object leaves the designated region in the first video image and has not entered into the second video image yet, the first video image is displayed in a first display mode on the monitoring interface. ### Claim 21 (depends on 14) The surveillance system according to claim 14, wherein when there is a plurality of objects existing in the first video image, the method further comprises: calculating a characteristic value related to each of the plurality of objects; comparing the characteristic values with each other; and selecting one object, having the maximum characteristic value, among the plurality of objects to be the target object. ### Claim 22 (depends on 21) The surveillance system according to claim 21, wherein the plurality of objects is humans, and calculating the characteristic value related to each of the plurality of objects is performed using a face recognition procedure. ### Claim 23 (depends on 14) The surveillance system according to claim 14, wherein the first video image and the second video image are obtained from different video capturing devices, respectively. ### Claim 24 (depends on 14) The system according to claim 14, wherein the designated region in the first video image is related to a geographic position, and the second video image is related to a video image related to the geographic position.