The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 1999
Filed:
Apr. 10, 1997
Frederic Guichard, West Los Angeles, CA (US);
Leonid I Rudin, Los Angeles, CA (US);
Cognitech, Inc., Pasadena, CA (US);
Abstract
A process for performing image frame fusion on a pixel-by-pixel basis by estimating velocities and occlusions between at least two image frames of a sequence of frames. For each pixel, the possible matchings are those that minimize changes in a selected parameter of the image (generally the grey-level). The process uses a region-growing procedure to reduce the number of possible matchings for each pixel. The output is a decomposition of the images into regions in which pixels move with the same model of velocity or are all occluded. The process includes a multi-scale description of velocities between two images, a multi-scale segmentation of the images into regions having different motion, a correcting term for sampling errors, sub-pixel motion errors and an occlusion estimation step. A preferred embodiment employs pyramidal calculations.