NDLI: The Fourier adaptive smoothness constraint for computing optical flow on sequences of angiographic images

Content Provider	IEEE Xplore Digital Library
Author	Marzani, F. Legrand, L. Dusserre, L.
Copyright Year	1996
Description	Author affiliation: Fac. de Med., Lab. d'Inf. Med., Dijon, France (Marzani, F.; Legrand, L.; Dusserre, L.)
Abstract	This paper deals with a new constraint for determining optical flow fields. This constraint is called the Fourier adaptive smoothness. It can be seen as an improvement of some existing differential techniques. It includes the magnitude image of an extended temporal Fourier transform in the smoothness constraint of the equation used for calculating the flow field. In fact a temporal window of a few frames is displaced along the sequence in order to calculate the one-dimensional corresponding Fourier transform. The resulting local magnitude image allows to constrain the smoothness of the displacement field. The authors compare on angiographic images this approach with two other well known optical flow methods wing differential techniques. A criterion is defined to allow a quantitative analysis of the results. Qualitative remarks are also given. The authors show that the constraint introduced in this paper brings better results in most cases than the two others in addition to its processing speed.
Starting Page	53
Ending Page	58
File Size	390413
Page Count	6
File Format	PDF
ISBN	0818674415
ISSN	10637125
DOI	10.1109/CBMS.1996.507125
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-06-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical computing Adaptive optics Image motion analysis Biomedical optical imaging Brightness Biomedical imaging Fourier transforms Design for disassembly Equations Application software
Content Type	Text
Resource Type	Article
Subject	Radiology, Nuclear Medicine and Imaging Computer Science Applications

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