Patent application number | Description | Published |
20080284896 | Joint Optics and Image Processing Adjustment of Electro-Optic Imaging Systems - Adjustments to the optical subsystem of an electro-optic imaging system take into account different subsystems within the overall electro-optic imaging system. In one implementation, end-to-end imaging performance is predicted based on determining propagation of a source through the optical subsystem, the detector subsystem and the digital image processing subsystem. The optical subsystem is then adjusted after taking into account these other subsystems. For example, the compensators for the optical subsystem and the digital image processing subsystem may be jointly adjusted based on a post-processing performance metric that takes into account the effects of the image processing. Unlike in conventional approaches, the intermediate optical image produced by the optical subsystem is not required to be high image quality since, for example, the image may be subsequently improved by other adjustments in the digital image processing subsystem. | 11-20-2008 |
20090040330 | End-to-End Design of Electro-Optic Imaging Systems - A unified design strategy takes into account different subsystems within an overall electro-optic imaging system. In one implementation, the design methodology predicts end-to-end imaging performance using a spatial model for the source and models for the optical subsystem, the detector subsystem and the digital image processing subsystem. The optical subsystem and digital image processing subsystems are jointly designed taking into account the entire system. The intermediate image produced by the optical subsystem is not required to be high quality since, for example, the quality may be corrected by the digital image processing subsystem. | 02-12-2009 |
20090245688 | Adaptive image acquisition for multiframe reconstruction - Multiframe reconstruction combines a set of acquired images into a reconstructed image. Here, which images to acquire are selected based at least in part on the content of previously acquired images. In one approach, a set of at least three images of an object are acquired at different acquisition settings. For at least one of the images in the set, the acquisition setting for the image is determined based at least in part on the content of previously acquired images. Multiframe image reconstruction is applied to the set of acquired images to synthesize a reconstructed image of the object. | 10-01-2009 |
20090322928 | Electro-optic imaging system with aberrated triplet lens compensated by digital image processing - An electro-optic imaging system includes an aberrated triplet lens, a detector subsystem and a digital image processing subsystem. The triplet lens is not fully corrected for all aberrations (typically suffering from significant spherical aberration), with the digital image processing subsystem compensating for deficiencies in the triplet lens. In this way, an increased depth of field can be realized. | 12-31-2009 |
20100053411 | Control of Adaptive Optics Based on Post-Processing Metrics - Adaptive optics (AO) elements in imaging system allow dynamic and precise control over the optical wavefront to reduce uncontrolled wavefront errors in imaging systems. Traditional control of such devices is based on inverting the wavefront function to minimize the RMS wavefront error. However, this approach is not always optimal, particularly when the wavefront error is near or exceeds the limit of the AO element's correction capability. In the current approach, the AO element is instead controlled based on a performance metric that takes into account image processing, and not just RMS wavefront error. | 03-04-2010 |
20110074988 | Dual-Mode Extended Depth-of-Field Imaging Systems - A digital-optical imaging system can be operated in two modes, which shall be referred to as broadband mode and grayscale mode. In broadband mode, different color images are captured and then image processed together. The optics are intentionally aberrated to increase the depth of field, with the image processing compensating for the aberrations. In grayscale mode, the different color images are captured and then image processed separately. The color images are assumed to be correlated so that it is not necessary to have clear images of all color channels. Accordingly, the optics are designed so that the different color images focus at different locations, thus increasing the overall depth of field where at least one color image is in focus. | 03-31-2011 |
20110087653 | METHOD AND APPARATUS FOR SECURE AND OBLIVIOUS DOCUMENT MATCHING - A method and apparatus for secure and oblivious document matching are described. In one embodiment, the method comprises transmitting initial secure dot product data generated from a document thumbprint for a document to a remote system. The method may also comprise receiving a response from the remote system. In one embodiment, the response is generated by the remote system utilizing the initial secure dot product data and without knowledge of the document. In one embodiment, the method may further comprise determining whether the response indicates a match for the document. | 04-14-2011 |
20120201378 | EFFICIENT, REMOTE, PRIVATE TREE-BASED CLASSIFICATION USING CRYPTOGRAPHIC TECHNIQUES - A method and apparatus are disclosed herein for classification. In one embodiment, the method comprises performing tree-based classification of a user input by a classifier with a classification tree at a first location, including exchanging data with a second location, different from the first location, to obtain the user input and provide results of classification to a user using singly homomorphic encryption so that the user input is not revealed to the classifier, the classification tree is not revealed to the user and the classifier's output is not revealed to the classifier. | 08-09-2012 |
20120224029 | Compact Multi-Aperture Three-Dimensional Imaging System - A stereo-imaging system estimates depth based on two images; a multiview-imaging system estimates depth based on two or more images. A passive multiview-imaging system based on a sensor array is designed by considering different candidate partitions of the sensor array into imaging subsystems, especially three or more imaging subsystems. | 09-06-2012 |
20120300091 | Focusing and Focus Metrics for a Plenoptic Imaging System - Metrics for characterizing the focusing of a plenoptic imaging system. In one aspect, the metric is based on the high frequency content and/or the blurring of the plenoptic image. | 11-29-2012 |
20140019098 | Metrics for Designing a Plenoptic Imaging System - Metrics for characterizing the focusing of a plenoptic imaging system. In one aspect, the metric is based on the high frequency content and/or the blurring of the plenoptic image. | 01-16-2014 |
20140074606 | METHOD, SYSTEM AND COMPUTER CODE FOR CONTENT BASED WEB ADVERTISING - According to the present invention, an internet target marketing system, method and computer program for distributing online advertising to viewers based upon the viewers' interests is provided. Specific embodiments according to the present invention can use an n-way matching of user's concepts of interest, advertiser's concepts and a currently viewed document to target advertising to the view of the current document. Some embodiments can generate a contextually sensitive advertisement for each page viewed in a browser, thereby associating an advertisement with every page in a document. Specific embodiments can associate advertising with documents that are substantially free of embedded advertisements, for example. Alternative embodiments can include embedded advertising, however. | 03-13-2014 |