For Full-Text PDF, please login, if you are a member of IEICE,|
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
The Recognition of Three-Dimensional Translational Motion of an Object by a Fixed Monocular Camera
Viet HUYNH QUANG HUY Michio MIWA Hidenori MARUTA Makoto SATO
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/09/01
Print ISSN: 0916-8508
Type of Manuscript: PAPER
in-focus frame, multi-focus image sequence, multi-focus background image sequence, multi-focus subject image sequence, in-focus frame tracking operator, field of motion vision, non-uniform sampling,
Full Text: PDF(965.5KB)>>
In this paper, we propose a fixed monocular camera, which changes the focus cyclically to recognize completely the three-dimensional translational motion of a rigid object. The images captured in a half cycle of the focus change form a multi-focus image sequence. The motion in depth or the focus change of the camera causes defocused blur. We develop an in-focus frame tracking operator in order to automatically detect the in-focus frame in a multi-focus image sequence of a moving object. The in-focus frame gives a 3D position in the motion of the object at the time that the frame was captured. The reconstruction of the motion of an object is performed by utilizing non-uniform sampling theory for the 3D position samples, of which information were inferred from the in-focus frames in the multi-focus image sequences.