Hand Gesture Interface for Smart Operation Theatre Lighting

Abstract

Operation theatre lighting system is a critical component in the operation theatre. Focusing the light to the area of surgery and varying the light intensity is manually done in currently available systems. Disruption of surgeon’s attention and possibility of infection due to non sterilized hands is a major setback of the manual controlling method. This usually requires assistants to adjust the position and intensity of the light system by commands from the surgeon. So, designing an intelligent lighting system for operating theatre which can maintain the intensity values to the required level without shadow effect to the operation area is an important requirement. Proposed system makes use of accelerators in the gloves worn by surgeon so as to track hand movements. Pre defined hand movements can be configured to move the lighting system up, down, left or right. Accelerator input is interpreted for its corresponding movement by controller at transmitter side and it is wirelessly given to the receiver side using an nRF module. At the receiver side the incoming command from the nRF is taken and suitable response generated at the motor driver by the controller to move the lighting device. In the same way predefined hand signal can be used to vary the intensity of the light by using microcontroller to drive an LED driver.

Hand Gestures Recognition Using Radar Sensors for Human-Computer-Interaction: A Review

“…Utilizing hand movements as an input source instead of a keyboard and mouse can help people to communicate with computers in more easy and intuitive way. HGR systems have also found many applications in environments which demand contactless interaction with machinery, such as hospital surgery rooms [26,27], to prevent the spread of viruses and germs. As a result, contactless HCI can be a safe means of man-machine interaction in epidemiological situations such as MERS and the recent and ongoing COVID-19 outbreaks.…”

Robotic Technology in Operating Rooms: a Review

“…Regarding intelligent lighting systems, the control of light with non-contact signs such as hand gestures and verbal commands is implemented. Research and development of hand gestures for lighting control have been particularly active in the last decade [21][22][23][24]. Taking [23] as an example, a set of simple gestures is proposed to enable the control of system log-on, illumination level, color temperature, and camera control (zoom and angle rotation).…”