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:
Dec. 30, 2014
Filed:
Jul. 25, 2012
Kah Kuen Fu, Sunnyvale, CA (US);
Kenneth M. Karakotsios, San Jose, CA (US);
Volodymyr V. Ivanchenko, Mountain View, CA (US);
Kah Kuen Fu, Sunnyvale, CA (US);
Kenneth M. Karakotsios, San Jose, CA (US);
Volodymyr V. Ivanchenko, Mountain View, CA (US);
Amazon Technologies, Inc., Reno, NV (US);
Abstract
Image capture can be improved by capturing a sequence of images and analyzing the images to select the image with the least blur and/or an acceptable amount of blur. Gradients can be calculated for at least a portion of the images, and gradient histograms generated. Two or more component curves can be fit to each histogram, such as by using a Gaussian mixture model, and the curves can be compared to determine an amount of variation between the curves. The image with the smallest differences between component curves, or with differences less than a specified blur threshold, can be selected as a sufficiently sharp image and provided for viewing, processing, or another intended purpose of the image to be captured.