Image analysis – Image compression or coding – Pyramid – hierarchy – or tree structure
Patent
1995-06-15
1999-09-21
Lee, Thomas D.
Image analysis
Image compression or coding
Pyramid, hierarchy, or tree structure
382260, 382280, G06K 936, G06K 940
Patent
active
059564270
ABSTRACT:
A technique of determining information about orientation and amount of orientation of an image. The orientations of the image are sampled, and the samples are used to reconstruct information from which all orientations can be obtained. The samples each include information about specific components of the image, and these samples are assembled into a feature vector. The feature vector is discrete Fourier transformed whereby its continuous orientation information can be obtained.
REFERENCES:
patent: 3566080 (1971-02-01), Uffelman et al.
patent: 5109431 (1992-04-01), Nishiya et al.
patent: 5526446 (1996-06-01), Adelson et al.
"Digital Image Processing", R.C. Gonzalez and P. Wintz, Addison-Wesley 1977 pp. 41-47.
"Overcomplete Steerable Pyramid Filters and Rotation Invariance", H. Greenspan et al., Computer Society Conference on Computer Vision and Pattern Recognition, Seattle, 21-23, Jun. 1994.
"Digital Image Processing", R. C. Gonzalez et al., Addison-Wesley 1977, p. 335.
Local Orientation, pp. 157-163.
Multidimensional Orientation Estimation with Application to Texture Analysis and Optical Flow, IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 13, No. 8, Aug. 1991 by Josef Bigun et al.
The Design and Use of Steerable Filters, 1991 IEEE, William T. Freeman and Edward H. Adelson, pp. 891-906.
Computerized Flow Field Analysis: Oriented Texture Fields, A. Ravishankar Rao and Ramesh C. Jain, IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 14, No. 7, Jul. 1992, pp. 693-709.
Computing Oriented Texture Fields, A. Ravishankar Rao and Brian G. Schunck, Graphical Models and Image Processing, vol. 53, No. 2, Mar., pp. 157-185, 1991.
Analyzing Oriented Patterns, Michael Kass and Andrew Witkin, Computer Vision, Graphics, and Image Processing 37, 362-385 (1987).
Belongie Serge
Greenspan Hayit
California Institute of Technology
Chen Wenpeng
Lee Thomas D.
LandOfFree
DFT encoding of oriented filter responses for rotation invarianc does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with DFT encoding of oriented filter responses for rotation invarianc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DFT encoding of oriented filter responses for rotation invarianc will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-87739