Real-time endoscopic image orientation correction system using an accelerometer and gyrosensor.

ABSTRACT: The discrepancy between spatial orientations of an endoscopic image and a physician's working environment can make it difficult to interpret endoscopic images. In this study, we developed and evaluated a device that corrects the endoscopic image orientation using an accelerometer and gyrosensor. The acceleration of gravity and angular velocity were retrieved from the accelerometer and gyrosensor attached to the handle of the endoscope. The rotational angle of the endoscope handle was calculated using a Kalman filter with transmission delay compensation. Technical evaluation of the orientation correction system was performed using a camera by comparing the optical rotational angle from the captured image with the rotational angle calculated from the sensor outputs. For the clinical utility

SUBMITTER: Lee HC 

PROVIDER: S-EPMC5669437 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature