A DSP-based real time contour tracking system

Author

Gemignani, V. ; Provvedi, S. ; Demi, M. ; Paterni, M. ; Benassi, A.

Author_Institution

Inst. of Clinical Physiol., CNR, Pisa, Italy

fYear

1999

fDate

1999

Firstpage

630

Lastpage

635

Abstract

In this paper the real-time implementation of an automatic contour tracking procedure is presented. If a rough contour of the desired structure is available on the first frame of a sequence, the contours on the subsequent frames are automatically outlined. The mass center of the first-order absolute moment operator is used to locate the contour of interest on every frame. The contour tracking procedure was implemented on an integrated software/hardware environment based on the interaction of a PC and a DSP processor (TMS320C80). Standard PAL images at 25 frame/s were used as an input signal; the contour was computed in real time and was then drawn on the images and displayed on a VGA monitor. The results are illustrated both on clinical images recorded on a SVHS videocassette and on images of a test object acquired by means of a video camera

Keywords

digital signal processing chips; edge detection; image sequences; medical image processing; pattern recognition equipment; real-time systems; tracking; DSP; PAL images; PC; SVHS videocassette; TMS320C80; VGA monitor; clinical images; contour tracking system; first-order absolute moment operator; integrated software/hardware environment; real-time implementation; sequence frame; test object; video camera; Apertures; Computational efficiency; Convergence; Density functional theory; Filters; Frequency; Laplace equations; Pixel; Real time systems; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Analysis and Processing, 1999. Proceedings. International Conference on

Conference_Location

Venice

Print_ISBN

0-7695-0040-4

Type

conf

DOI

10.1109/ICIAP.1999.797667

Filename

797667