Easy Depth Sensor Calibration
Hirotake Yamazoe, Hitoshi Habe, Ikuhisa Mitsugami, Yasushi Yagi · 2016
This paper proposes a depth measurement error model of consumer depth cameras such as Microsoft KINECT, and its calibration method. These devices are originally designed for video game interface, thus, the obtained depth map are not enough accurate for 3D measurement. To decrease these depth errors, several models have been proposed, however, these models con-sider only camera-related parameters. Since the depth sensors are based on projector-camera systems, we should consider projector-related parameters. There-fore, we propose the error model of the consumer depth cameras especially the KINECT, considering both in-trinsic parameters of the camera and the projector. To calibrate the error model, we also propose the parame-ter estimation method by only showing a planar board to the depth sensors. Our error model and its calibra-tion are necessary step for using the KINECT as a 3D measuring device. Experimental results show the valid-ity and effectiveness of the error model and its calibra-tion. 1