Combining multiple exposure images to increase dynamic range

Image analysis – Applications – Motion or velocity measuring

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C382S255000, C375S240160

Reexamination Certificate

active

07623683

ABSTRACT:
Methods, machines, and machine-readable media for processing multiple exposure source images, including a reference image and one or more non-reference images, are described. In one aspect, respective sets of motion vectors that establish correspondences between respective pairs of the source images are calculated. Ones of the source images are warped to a reference coordinate system based on the sets of motion vectors. For each of the non-reference ones of the warped images, a respective set of one or more measures of alignment confidence between the non-reference warped image and the reference image in the reference coordinate system is computed. Saturated pixels and unsaturated pixels are identified in the warped images. An output image with pixel value contributions from unsaturated pixels in the warped images is generated based on the computed alignment confidence measures.

REFERENCES:
patent: 6570624 (2003-05-01), Cornog et al.
patent: 6665450 (2003-12-01), Cornog et al.
patent: 6879731 (2005-04-01), Kang et al.
patent: 7103231 (2006-09-01), Cornog et al.
patent: 7308028 (2007-12-01), Suh
patent: 7548659 (2009-06-01), Ofek et al.
patent: 2003/0128893 (2003-07-01), Castorina et al.
patent: 2005/0013501 (2005-01-01), Kang et al.
Goshtasby, A. A., “High Dynamic RangeReduction Via Maximization of Image In-formation.”, http://www.cs.wright.edu/agosh-tas/hdr.html, 2003.
Kang et al., “High Dynamic Range Video,” ACM Trans. Graph., 22(3):319-325, 2003.
D. Yang and A. El Gamal, “Comparative analysis of SNR for image sensors with widened dynamic range”,Proc. SPIE, vol. 3649, pp. 197-211, Feb. 1999.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Combining multiple exposure images to increase dynamic range does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Combining multiple exposure images to increase dynamic range, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combining multiple exposure images to increase dynamic range will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4142388

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.