%0 Journal Article
%T Three-Dimensional Object Motion and Velocity Estimation Using a Single Computational RGB-D Camera
%A Seungwon Lee
%A Kyungwon Jeong
%A Jinho Park
%A Joonki Paik
%J Sensors
%P 995-1007
%D 2015
%I MDPI AG
%R 10.3390/s150100995
%X In this paper, a three-dimensional (3D) object moving direction and velocity estimation method is presented using a dual off-axis color-filtered aperture (DCA)-based computational camera. Conventional object tracking methods provided only two-dimensional (2D) states of an object in the image for the target representation. The proposed method estimates depth information in the object region from a single DCA camera that transforms 2D spatial information into 3D model parameters of the object. We also present a calibration method of the DCA camera to estimate the entire set of camera parameters for a practical implementation. Experimental results show that the proposed DCA-based color and depth (RGB-D) camera can calculate the 3D object moving direction and velocity of a randomly moving object in a single-camera framework.
%K object tracking
%K depth estimation
%K computational camera
%K image registration
%K 3D image acquisition
%U http://www.mdpi.com/1424-8220/15/1/995