US 12,383,767 B2
3D stereoscopic camera monitoring system and method of calibrating a camera monitoring system for monitoring a patient in a bore of a medical system for radiation treatment
Gideon M. Hale, London (GB)
Assigned to VISION RT LIMITED, London (GB)
Filed by Vision RT Limited, London (GB)
Filed on Feb. 7, 2023, as Appl. No. 18/106,858.
Application 18/106,858 is a continuation of application No. 16/387,271, filed on Apr. 17, 2019, granted, now 11,612,762.
Claims priority of application No. 1806339 (GB), filed on Apr. 18, 2018; and application No. 1808304 (GB), filed on May 21, 2018.
Prior Publication US 2023/0181932 A1, Jun. 15, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 5/10 (2006.01); A61B 5/11 (2006.01); A61B 6/00 (2006.01); G06T 7/00 (2017.01); H04N 13/236 (2018.01); H04N 13/246 (2018.01); H04N 13/275 (2018.01); A61B 90/00 (2016.01)
CPC A61N 5/1049 (2013.01) [A61B 5/1128 (2013.01); A61B 6/527 (2013.01); A61N 5/1075 (2013.01); G06T 7/0014 (2013.01); H04N 13/236 (2018.05); H04N 13/246 (2018.05); H04N 13/275 (2018.05); A61B 2090/3618 (2016.02); A61N 2005/1059 (2013.01); G06T 2200/04 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A camera monitoring system for a bore based medical apparatus having at least one of an imaging apparatus configured to record diagnostic images of a patient and a treatment apparatus integrated into the bore based medical apparatus, the camera monitoring system comprising:
one or more 3D cameras, each comprising:
a first image sensor and a second image sensor mounted on a circuit board, wherein the first and second image sensors are mounted on opposing surfaces of the circuit board, the circuit board is contained within a housing which also contains a first mirror and a second mirror positioned within the housing wherein the first image sensor is presented with a first view of an object to be imaged via the first mirror and second image sensor is presented with a second view of an object to be imaged via the second mirror, and
wherein the camera furthermore, comprises a projector configured to project light on the surface of an object to be imaged by the first and second image sensors,
a first lens arrangement positioned between the first image sensor and the first mirror, wherein the first image sensor is presented with a first view of an object to be imaged via the first lens arrangement and the first mirror, and
a second lens arrangement positioned between the second image sensor and the second mirror, wherein the second image sensor is presented with a second view of an object to be imaged via the second lens arrangement and the second mirror; and
a processor configured to process images obtained by the image sensors of the one or more 3D cameras and to generate a 3D model of the surface of an imaged object, and wherein at least one of the more or more 3D cameras is configured to be integrated or extend into a bore of the bore based medical apparatus, where a camera field of view covers an internal part of the bore of the medical apparatus.