US 12,272,143 B2
Time-of-flight based 3D surveillance system with flexible surveillance zone definition functionality
Markus Ribi, Heerbrugg (CH); Sandra Tobler, Berneck (CH); Adam Bajric, Kirchberg (CH); and Carl-Thomas Schneider, Zug (CH)
Assigned to LEICA GEOSYSTEMS AG, Heerbrugg (CH)
Filed by LEICA GEOSYSTEMS AG, Heerbrugg (CH)
Filed on Jan. 5, 2023, as Appl. No. 18/093,688.
Claims priority of application No. 22150450.9 (EP), filed on Jan. 6, 2022.
Prior Publication US 2023/0215179 A1, Jul. 6, 2023
Int. Cl. G06V 20/52 (2022.01); G01S 17/89 (2020.01); G06F 3/04815 (2022.01); G06T 7/20 (2017.01); G06T 17/00 (2006.01); G06V 20/40 (2022.01)
CPC G06V 20/52 (2022.01) [G01S 17/89 (2013.01); G06F 3/04815 (2013.01); G06T 7/20 (2013.01); G06T 17/00 (2013.01); G06V 20/44 (2022.01); G06V 2201/07 (2022.01)] 23 Claims
OG exemplary drawing
 
1. A method for controlling a 3D surveillance device configured to generate 3D measurement data of a spatial volume of an environment and to monitor the spatial volume of the environment using the 3D measurement data and a 3D environment model, comprising:
reading input data associated to the 3D surveillance device, wherein the input data provide coordinate information associated to a position of the 3D surveillance device within the 3D environment model,
generating on an electronic graphical display a graphical user interface which provides a 3D visualization of the 3D environment model, wherein the 3D visualization comprises an indication of the position of the 3D surveillance device,
providing via the graphical user interface an input functionality for a user to define a 3D subzone within the 3D environment model, wherein the 3D subzone has a shape of a 3D body, which is spanned by a connection of at least four corner points,
providing via the graphical user interface a change functionality for a user to generate a redefined subzone by dragging one of the corner points of the 3D subzone to a different position within the 3D visualization of the 3D environment model, whereby the shape of the 3D subzone is distorted, and
providing to the 3D surveillance device spatial parameters associated with the redefined subzone within the 3D environment model and causing the 3D surveillance device to generate an action, particularly an alarm, in case a movement within the redefined subzone is detected by means of the 3D measurement data,
the method further comprising a step of using 3D measurement data of the 3D surveillance device to generate the 3D measurement model, particularly wherein the 3D measurement model is repeatedly generated in defined intervals and/or upon detection of a defined event within the 3D environment model based on the 3D measurement data used to monitor the spatial volume of the environment.