TITLE:
Object Tracking Using a New Level Set Model
AUTHORS:
Nagi H. Al-Ashwal, Abdulmajid F. Al-Junaid
KEYWORDS:
Object Tracking; Deformable Model; Level Set Method; HSI Color Space
JOURNAL NAME:
Journal of Signal and Information Processing,
Vol.5 No.1,
February
14,
2014
ABSTRACT: This paper proposes a novel
implementation of the level set method that achieves real-time level-set-based
object tracking. In the proposed algorithm, the evolution of the curve is
realized by simple operations such as switching values of the level set
functions and there is no need to solve any partial differential equations
(PDEs). The object contour could change due to the change in the location,
orientation or due to the changeable nature of the object shape itself. Knowing
the contour, the average color value for the pixels within the contour could be
found. The estimated object color and contour in one frame are the bases for
locating the object in the consecutive one. The color is used to segment the
object pixels and the estimated contour is used to initialize the deformation
process. Thus, the algorithm works in a closed cycle in which the color is used
to segment the object pixels to get the object contour and the contour is used
to get the typical-color of the object. With our fast algorithm, a real-time
system has been implemented on a standard PC. Results from standard test
sequences and our real time system are presented.