Oriented structure of the occlusion distortion: is it reliable?

Author

Yu, Weichuan ; Sommer, Gerald ; Beauchemin, Steven ; Daniilidis, Kostas

Author_Institution

Dept. of Diagnostic Radiol., Yale Univ., New Haven, CT, USA

Volume

24

Issue

9

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

1286

Lastpage

1290

Abstract

In the energy spectrum of an occlusion sequence, the distortion term has the same orientation as the velocity of the occluding signal. Other works claimed that this oriented structure can be used to distinguish the occluding velocity from the occluded one. We argue that the orientation structure of the distortion cannot always work as a reliable feature due to the rapidly decreasing energy contribution. This already weak orientation structure is further blurred by a superposition of distinct distortion components. We also indicate that the superposition principle of Shizawa and Mase (1991) for multiple motion estimation needs to be adjusted

Keywords

image sequences; motion estimation; spectral analysis; distortion term; energy spectrum; motion discontinuities; multiple motion estimation; occluded velocity; occluding velocity; occlusion distortion; occlusion sequence; optical flow; oriented structure; spectral analysis; superposition principle; Convolution; Distortion; Equations; Fourier transforms; Frequency domain analysis; Motion analysis; Motion estimation; Signal analysis; Spectral analysis;

fLanguage

English

Journal_Title

Pattern Analysis and Machine Intelligence, IEEE Transactions on

Publisher

ieee

ISSN

0162-8828

Type

jour

DOI

10.1109/TPAMI.2002.1033220

Filename

1033220