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:
Nov. 12, 2019
Filed:
Jan. 19, 2016
Sri International, Menlo Park, CA (US);
David Chao Zhang, Belle Mead, NJ (US);
John Benjamin Southall, Philadelphia, PA (US);
Michael Anthony Isnardi, Plainsboro, NJ (US);
Michael Raymond Piacentino, Robbinsville, NJ (US);
David Christopher Berends, Skillman, NJ (US);
Girish Acharya, Redwood City, CA (US);
Douglas A. Bercow, Menlo Park, CA (US);
Aaron Spaulding, Menlo Park, CA (US);
Sek Chai, Princeton, NJ (US);
SRI International, Menlo Park, CA (US);
Abstract
Device logic in a mobile device configures a processor to capture a series of images, such as a video, using a consumer-grade camera, and to analyze the images to determine the best-focused image, of the series of images, that captures a region of interest. The images may be of a textured surface, such as facial skin of a mobile device user. The processor sets a focal length of the camera to a fixed position for collecting the images. The processor may guide the user to position the mobile device for capturing the images, using audible cues. For each image, the processor crops the image to the region of interest, extracts luminance information, and determines one or more energy levels of the luminance via a Laplacian pyramid. The energy levels may be filtered, and then are compared to energy levels of the other images to determine the best-focused image.