DETERMINING OPTICAL-FLOW USING A DIFFERENTIAL METHOD

Authors
BAINBRIDGESMITH A LANE RG
Citation
A. Bainbridgesmith et Rg. Lane, DETERMINING OPTICAL-FLOW USING A DIFFERENTIAL METHOD, Image and vision computing, 15(1), 1997, pp. 11-22
Citations number
24
Categorie Soggetti
Computer Sciences, Special Topics",Optics,"Engineering, Eletrical & Electronic","Computer Science Artificial Intelligence","Computer Science Software Graphycs Programming","Computer Science Theory & Methods
Journal title
Image and vision computing → ACNP
ISSN journal
02628856
Volume
15
Issue
1
Year of publication
1997
Pages
11 - 22
Database
ISI
SICI code
0262-8856(1997)15:1<11:DOUADM>2.0.ZU;2-Q
Abstract
A comparison of different methods for determining optical flow based o n local information is presented. It is shown that to overcome the ape rture problem, second order differential terms of the image function a re required. It is also argued that the fundamental problem of measuri ng optical flow is to determine the velocity in as small an aperture a s possible. It is concluded that the technique of Lucas and Kanade (se e Barren et al., Performance of optical flow techniques, Int. J. Compu ter Vision, 12 (1) (1994) 43-77) is the best generalised second order method for achieving this objective.