Scene enhancements in off-center peripheral regions for nonlinear lens geometries

Patent metadata

Field	Value
Publication number	US-8947501-B2
Application number	US-201113077936-A
Country	US
Kind code	B2
Filing date	Mar 31, 2011
Priority date	Mar 31, 2011
Publication date	Feb 3, 2015
Grant date	Feb 3, 2015

Abstract

A technique of enhancing a scene containing one or more off-center peripheral regions within an initial distorted image captured with a large field of view includes determining and extracting an off-center region of interest (hereinafter “ROI”) within the image. Geometric correction is applied to reconstruct the off-center ROI into a rectangular frame of reference as a reconstructed ROI. A quality of reconstructed pixels is determined within the reconstructed ROI. Image analysis is selectively applied to the reconstructed ROI based on the quality of the reconstructed pixels.

First claim

What is claimed is:

1. Within an image acquisition system comprising a non-linear, wide-angled lens and an imaging sensor, a method of enhancing a scene containing one or more off-center peripheral regions, the method comprising:
acquiring, using a nonlinear, wide-angled lens and an imaging sensor, an initial distorted image with a large field of view;
generating a reconstructed image from the initial distorted image, wherein the reconstructed image includes a plurality of recon…

Assignees

• Corcoran Peter
• Bigioi Petronel
• Stec Piotr
• Fotonation Ltd

Inventors

• Corcoran Peter
• Bigioi Petronel
• Stec Piotr

Classifications

• H04N23/81

  Electricity · mapped topic

• H04N23/698

  Electricity · mapped topic

• G06T3/0018 Primary

  Physics · mapped topic

• G06T3/047 Primary

  Physics · mapped topic