US 12,236,613 B2
Method and device for generating a control signal, marker array and controllable system
Stefan Saur, Aalen (DE); Zuzanna Derda, Katowice (PL); Stefan Schute, Aalen (DE); and Adrian Samp, Slupsk (PL)
Assigned to Carl Zeiss Industrielle Messtechnik GmbH, Oberkochen (DE); and Carl Zeiss Meditec AG, Jena (DE)
Filed by Carl Zeiss Industrielle Messtechnik GmbH, Oberkochen (DE); and Carl Zeiss Meditec AG, Jena (DE)
Filed on Aug. 1, 2020, as Appl. No. 16/945,862.
Application 16/945,862 is a continuation of application No. PCT/EP2019/052469, filed on Feb. 1, 2019.
Claims priority of application No. 10 2018 201 612.7 (DE), filed on Feb. 2, 2018.
Prior Publication US 2020/0363782 A1, Nov. 19, 2020
Int. Cl. G06T 7/246 (2017.01); A61B 90/00 (2016.01); G06T 1/00 (2006.01); G06T 7/73 (2017.01)
CPC G06T 7/246 (2017.01) [A61B 90/39 (2016.02); G06T 1/0014 (2013.01); G06T 7/73 (2017.01); A61B 2090/3937 (2016.02); G06T 2207/10012 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for generating a control signal for a controllable device with an optical position detection system, the method comprising:
generating images of at least one spatial region with at least one optical detection device of the optical position detection system;
identifying markers in the images;
generating the control signal when at least one of a relative position between at least two markers changes and a number of imaged markers changes,
wherein the controllable device is a positioning device,
wherein the control signal is an activation signal for activating a predetermined operating mode of the controllable device or a deactivation signal for deactivating the predetermined operating mode of the controllable device, and
wherein, in an activated operating mode, control signals which are different from the deactivation signal and which are generated depending on a change of at least one of the relative position between two markers and the number of imaged markers, serve for controlling an operation of the controllable device or parts of the controllable device.