Feasibility of touch-less control of operating room lights
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Today’s highly technical operating rooms lead to fairly complex surgical workflows where the surgeon has to interact with a number of devices, including the operating room light. Hence, ideally, the surgeon could direct the light without major disruption of his work. We studied whether a gesture tracking–based control of an automated operating room light is feasible.
So far, there has been little research on control approaches for operating lights. We have implemented an exemplary setup to mimic an automated light controlled by a gesture tracking system. The setup includes a articulated arm to position the light source and an off-the-shelf RGBD camera to detect the user interaction. We assessed the tracking performance using a robot-mounted hand phantom and ran a number of tests with 18 volunteers to evaluate the potential of touch-less light control.
All test persons were comfortable with using the gesture-based system and quickly learned how to move a light spot on flat surface. The hand tracking error is direction-dependent and in the range of several centimeters, with a standard deviation of less than 1 mm and up to 3.5 mm orthogonal and parallel to the finger orientation, respectively. However, the subjects had no problems following even more complex paths with a width of less than 10 cm. The average speed was 0.15 m/s, and even initially slow subjects improved over time. Gestures to initiate control can be performed in approximately 2 s. Two-thirds of the subjects considered gesture control to be simple, and a majority considered it to be rather efficient.
Implementation of an automated operating room light and touch-less control using an RGBD camera for gesture tracking is feasible. The remaining tracking error does not affect smooth control, and the use of the system is intuitive even for inexperienced users.
KeywordsOperating room light Gesture tracking Interactive control Kinect
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- 9.Reilink R, de Bruin G, Franken M, Mariani MA, Misra S, Stramigioli S (2010) Endoscopic camera control by head movements for thoracic surgery. In: Proceedings of the 3rd IEEE RAS & EMBS international conference on biomedical robotics and biomechatronics, Tokyo, pp 510–515Google Scholar
- 10.Noonan DP, Mylonas GP, Shang J, Payne CJ, Darzi A, Yang GZ (2010) Gaze contingent control for an articulated mechatronic laparoscope. In: Proceedings of the 3rd IEEE RAS & EMBS international conference on biomedical robotics and biomechatronics, Tokyo, pp 759–765Google Scholar
- 11.Finke M, Stender B, Bruder R, Schlaefer A, Schweikard A (2010) An experimental comparison of control devices for automatic movements of a surgical microscope. In: Proceedings of the 24th international conference and exhibition on computer assisted radiology and surgery, pp 311–312Google Scholar
- 12.Hiltl C, Omid A, Schrader S (2011) Control system and method to operate an operating room lamp. US2011037840Google Scholar
- 13.Kusner M, Centanni MA (2010) Method and apparatus for electronic adjustment of illuminance of surgical lamp. US20100121154Google Scholar
- 14.Laerum F, Fosse E, Elle OJ (2003) Light system for use especially by operating theatre. US2003146719Google Scholar
- 16.Ebert LC, Hatch G, Ampanozi G, Thali MJ, Ross S (2011) You can’t touch this: touch-free navigation through radiological images. Surg InnovGoogle Scholar
- 17.Richter L, Ernst F, Martens V, Matthäus L, Schweikard A (2010) Client/server framework for robot control in medical assistance systems. In: Proceedings of the 24th international congress an exhibition on computer assisted radiology and surgery, Geneva, pp 306—307Google Scholar
- 18.OpenNI organization (2012) OpenNI documentation. http://openni.org/Documentation. Accessed 04 April 2012
- 19.Primesense Inc (2011) Prime sensor(TM) development kit RD1.081 user guideGoogle Scholar
- 20.Silicon Graphic Inc (2011) OpenGL 2.1 reference pages, glulookat—define a viewing transformation. http://www.opengl.org/sdk/docs/man/xhtml/gluLookAt.xml. Accessed 07 Jan 2012
- 21.LightOR. http://www.lightor.com. Accessed 03 April 2012
- 22.LightOR Video. http://www.lightor.com/images/flash/LightOR_web_wide.swf. Accessed 03 April 2012