Method and apparatus for non-affine image warping

Details Method and apparatus for non-affine image warping Method and apparatus for non-affine image warping

1989-09-12

1992-12-29

Harkcom, Gary V.

Image analysis

Histogram processing

For setting a threshold

395136, 395125, 382 44, G06F 1566

Patent

active

051758083

ABSTRACT:
A method and apparatus for two-pass image transformation, providing a general solution to execute arbitrary warping of an image. A bicubic mesh is created, by splines or other suitable means, and is used to create displacement tables for X and Y displacement. Alternatively, the displacement tables can be generated directly. The displacement tables represent the movement of each pixel from an original location in the source image to a new location in the destination image. One of the displacement maps is applied to the source image to create an intermediate image and to the other displacement map to create a resampled displacement map. The resampled map is then applied to the intermediate image to create the destination image. By resampling, compensation for altered location points is done automatically. In this manner, no inversion of the underlying equations and functions is required.

REFERENCES:
patent: 4468688 (1984-08-01), Gabriel et al.
patent: 4672464 (1987-06-01), Shida
patent: 4805117 (1989-02-01), Fiore et al.
patent: 4885786 (1989-12-01), Anderson et al.
patent: 4908874 (1990-03-01), Gabriel
patent: 4985849 (1991-01-01), Hideaki
Foley et al., Fundamentals of Interactive Computer Graphics, Addison-Wesley, 1982, pp. 245-255.
Catmull & Smith, "3-D Transformations of Images in Scanline Order" Computer Graphics, (Siggraph '80 Proceedings) vol. 14, No. 3, pp. 279-285, Jul. 1980.
Catmull & Rom, "A Class of Local Interpolating Splines" Computer Aided Geometric Design, R. E. Barnhill & R. F. Riesenfeld, eds., Academic Press, New York, 1974, pp. 317-326.

Affiliated with

Also associated with

Rating

Method and apparatus for non-affine image warping does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for non-affine image warping, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for non-affine image warping will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1893404