Image analysis – Applications – 3-d or stereo imaging analysis
Patent
1995-02-24
1997-11-04
Boudreau, Leo
Image analysis
Applications
3-d or stereo imaging analysis
382280, 382255, G06K 900, G06K 936
Patent
active
056848900
ABSTRACT:
The images of an object equivalent to those obtained when as object is viewed respectively by the right and left eyes are subdivided into small areas with overlaps allowed therebetween and are Fourier transformed to achieve a local Fourier transform for the images. Phase difference of Fourier transforms is obtained according to the right and left local Fourier transform images of a reference image which is stored beforehand in a storage memory. Alternatively, a Fourier transform power spectrum is obtained. Disparity is represented in terms of a phase difference or in the form of a Fourier transform power spectral pattern. According to either one of the above results, and on the basis of a local Fourier transform of an input image including the reference image, an identical object image is estimated. For the image, a local inverse Fourier transform is effected such that geometric mean values are attained between the right and left images so as to segment an image matching the reference image and, also, with respect to disparity.
REFERENCES:
patent: 4842411 (1989-06-01), Wood
patent: 5179441 (1993-01-01), Anderson et al.
patent: 5193124 (1993-03-01), Subbarao
patent: 5537669 (1996-07-01), Evans et al.
K. Fushima; "A Neural Network Model for Selective Attention in Visual Pattern Recognition"; Biological Cybernetics, Springer-Verlag 1986, pp. 5-15.
K. Fukushima et al.; "Recognition and Segmentation of Connected Characters with Selective Attention"; Neural Networks, vol. 6, 1993, pp. 33-41.
D. Marr; "Vision"; W.H. Freeman and Company, 1982; pp. 110-120.
D. Marr; "Vision"; W.H. Freeman and Company, 1982; pp. 120-159.
H.K. Nishihara; "Practical Real-Time Imaging Stereo Matcher"; Optical Engineering, vol. 23, No. 5, Sep./Oct. 1984; pp. 536-545.
Y. Ohta; "Stereo by Intra-and Inter-Scanline Search Using Dynamic Programming" IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. PAMI-7, No. 2, Mar. 1985; pp. 139-154.
Miyashita Masanobu
Okajima Kenji
Boudreau Leo
Chen Wenpeng
NEC Corporation
LandOfFree
Three-dimensional reference image segmenting method and apparatu does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Three-dimensional reference image segmenting method and apparatu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three-dimensional reference image segmenting method and apparatu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1839946