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Levoy
Marc Levoy, Stanford, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090296168 | Systems and Methods for Glare Removal Using Polarized Filtering in Document Scanning - Systems and methods using polarized filtering for glare removal to improve the process of scanning documents, particularly bound documents with glossy content, are disclosed. The system may generally include a lighting source for illuminating a document, a lighting source polarizer attached to the lighting source to polarize light therefrom, a camera for capturing images of the document, and a camera polarizer attached to the camera. The camera polarizer and the lighting source polarizer may be positioned relative to each other so as to facilitate blocking light reflections causing glare off of the document resulting from the lighting source and arriving at the camera. The system may include multiple lighting sources, some or all of which may have a lighting source polarizer attached thereto. | 12-03-2009 |
| 20090309990 | Method, Apparatus, and Computer Program Product for Presenting Burst Images - An apparatus for presenting burst images is provided. The apparatus may include a processor that may be configured to receive a plurality of burst images. Each burst image may differ from the other burst images based on a variable parameter, such as, but not limited to, exposure, focus, and/or time, or to the state of a target, such as the varying facial expression of a person. The processor may also be configured to provide for a presentation of a sample burst image. In this regard, the sample burst image may be one of the plurality of burst images. The processor may be further configured to receive a selected location within the presentation of the sample burst image and provide for a presentation of a plurality of burst image fragments associated with each of the plurality of burst images. In this regard, the burst image fragments may be portions of each of the burst images, where the areas of each burst image may be determined based on the selected location. Associated methods and computer program products may also be provided. | 12-17-2009 |
| 20110123183 | SPATIALLY ADAPTIVE PHOTOGRAPHIC FLASH UNIT - Using photographic flash for candid shots often results in an unevenly lit scene, in which objects in the back appear dark. A spatially adaptive photographic flash ( | 05-26-2011 |
Marc S. Levoy, Stanford, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080266655 | Microscopy Arrangements and Approaches - Light-field microscopy is facilitated using an approach to image computation. In connection with an example embodiment, a subject (e.g., | 10-30-2008 |
| 20090128669 | CORRECTION OF OPTICAL ABERRATIONS - Digital images are computed using an approach for correcting lens aberration. According to an example embodiment of the present invention, a digital imaging arrangement implements microlenses to direct light to photosensors that detect the light and generate data corresponding to the detected light. The generated data is used to compute an output image, where each output image pixel value corresponds to a selective weighting and summation of a subset of the detected photosensor values. The weighting is a function of characteristics of the imaging arrangement. In some applications, the weighting reduces the contribution of data from photosensors that contribute higher amounts of optical aberration to the corresponding output image pixel. | 05-21-2009 |
| 20100026852 | VARIABLE IMAGING ARRANGEMENTS AND METHODS THEREFOR - Various approaches to imaging involve selecting directional and spatial resolution. According to an example embodiment, images are computed using an imaging arrangement to facilitate selective directional and spatial aspects of the detection and processing of light data. Light passed through a main lens is directed to photosensors via a plurality of microlenses. The separation between the microlenses and photosensors is set to facilitate directional and/or spatial resolution in recorded light data, and facilitating refocusing power and/or image resolution in images computed from the recorded light data. In one implementation, the separation is varied between zero and one focal length of the microlenses to respectively facilitate spatial and directional resolution (with increasing directional resolution, hence refocusing power, as the separation approaches one focal length). | 02-04-2010 |
Nancy F. Levoy, Acton, MA US
| Patent application number | Description | Published |
|---|---|---|
| 20090312173 | VOLUME-CHANGE RESISTANT SILICON OXY-NITRIDE OR SILICON OXY-NITRIDE AND SILICON NITRIDE BONDED SILICON CARBIDE REFRACTORY - A reaction sintered silicon carbide-based product, including a silicon carbide component, a bond component, wherein the bond component includes silicon oxynitride in excess of any silicon nitride of the bond component, and at least one boron component residual to an amount present prior to reaction sintering to cause increased resistance of the reaction sintered silicon carbide-based product to volume change under oxidative stress, and methods of making the same. | 12-17-2009 |