Abstract: Examples disclosed herein relate to viewing device adjustment based on eye accommodation in relation to a display. In one implementation, a computing device determines accommodation information related to a viewer's focus on an image rendered on a display. The computing device may cause an optical component associated with a viewing device to adjust based on the determined accommodation.

Abstract: Examples disclosed herein relate to viewing device adjustment based on eye accommodation in relation to a display. In one implementation, a computing device determines accommodation information related to a viewer's focus on an image rendered on a display. The computing device may cause an optical component associated with a viewing device to adjust based on the determined accommodation.

Abstract: One embodiment in accordance with the invention is a video system that can include a display screen and a plurality of video capturing devices located behind the display screen. It is noted that each of the plurality of video capturing devices is for capturing a video stream through the display screen.

Abstract: One embodiment in accordance with the invention is a video system that can include a display screen and a plurality of video capturing devices located behind the display screen. It is noted that each of the plurality of video capturing devices is for capturing a video stream through the display screen.

Abstract: A method of displaying images includes performing geometric processing and photometric processing on a plurality of image frames, thereby generating a plurality of processed image frames, projecting the plurality of processed image frames on a non-planar display surface with at least one projector, wherein the geometric processing includes applying a first plurality of meshes to the plurality of image frames, wherein the first plurality of meshes defines 2D mappings between the display surface and the at least one projector.

Abstract: Imaging apparatuses, mosaic image compositing methods, video stitching methods and edgemap generation methods are provided. An exemplary imaging apparatus includes data circuitry configured to provide image data for a plurality of frames of a source and processing circuitry configured to generate mosaic data for the source using the image data, wherein the processing circuitry is configured to convert the image data into a plurality of edgepoints for individual ones of the frames, to identify a plurality of common edgepoints in a first frame and a second frame, to determine a positional representation with respect to the first frame and the second frame using the common edgepoints, and to map image data from one of the first frame and the second frame into the mosaic data using the positional representation to generate a mosaic image of the source using the mosaic data.

Abstract: A system and method for generating texture information. Specifically, a method provides for extensive coverage of an object using virtual cameras. The method begins by tracking a moveable object in a reference coordinate system. By tracking the moveable object, an object based coordinate system that is tied to the object can be determined. The method continues by collecting at least one replacement image from at least one video sequence of the object to form a subset of replacement images of the object. The video sequence of the object is acquired from at least one reference viewpoint, wherein the reference viewpoint is fixed in the reference coordinate system but moves around the object in the object based coordinate system. The subset of replacement images is stored for subsequent incorporation into a rendered view of the object.

Abstract: A system and a method solve the estimation problem of finding reflectance R and illumination L. The system and method to solve a functional of the unknown illumination L such that a minimum of the functional is assumed to yield a good estimate of the illumination L. Having a good estimate of the illumination L implies a good estimate of the reflectance R. The functional uses a variational framework to express requirements for the optimal solution. The requirements include: 1) that the illumination L is spatially smooth; 2) that the reflectance values are in the interval [0,1] —thus, when decomposing the image S, the solution should satisfy the constraint L>S; 3) that among all possible solutions, the estimate of the illumination L should be as close as possible to the image S, so that the contrast of the obtained R is maximal; and 4) that the reflectance R complies with typical natural image behavior (e.g., the reflectance is piece-wise smooth).

Abstract: A method an apparatus uses a variational approach for space dependent gamut mapping. The method presents a new measure for the problem. A solution to the formulation according to the method is unique if the gamut of the target device is known. A quadratic programming efficient numerical solution provides real-time results.

Abstract: A method for real-time video communication. Specifically, one embodiment of the present invention discloses a method of video conferencing that captures a plurality of real-time video streams of a local participant from a plurality of sample viewpoints. From the plurality of video streams, a new view synthesis technique can be applied to generate a video image stream in real-time of the local participant rendered from a second location of a second participant with respect to a first location of the local participant in a coordinate space of a virtual environment. A change in either of the locations leads to the modifying of the video image stream, thereby enabling real-time video communication from the local participant to the second participant.

Abstract: An input image represented by a set of input pixel values is color-corrected by locally modifying the input pixel values according to pixel neighborhoods; and determining an output image having a set of output pixel values. Each set of output pixel values equals a non-linear combination of a set of input pixel values and its corresponding set of modified pixel values.

Abstract: The invention is directed towards method and apparatus for performing local color correction. One embodiment of the invention is a two-part process. The first part derives an image mask from an input image. In some embodiments, the mask is an inverted, low-pass filtered, monochrome version of the input image. The second part combines the derived mask with the input image through a non-linear operation. In some embodiments, the combination operation is a variable exponential function that has the mask values as part of its exponent and the pixel values as part of its base.

Abstract: An array of n-bit words representing an image is filtered to produce a corresponding array of higher precision m-bit words representing the image. During the filtering, upper and lower bounds for the m-bit words are identified, and values for the m-bit words are selected between the upper and lower bounds. There is at least some spatial smoothness between the selected values. For example, the values may be selected at sample points of a curve or surface between the upper and lower bounds.

Abstract: A method for real-time video communication. Specifically, one embodiment of the present invention discloses a method of video conferencing that captures a plurality of real-time video streams of a local participant from a plurality of sample viewpoints. From the plurality of video streams, a new view synthesis technique can be applied to generate a video image stream in real-time of the local participant rendered from a second location of a second participant with respect to a first location of the local participant in a coordinate space of a virtual environment. A change in either of the locations leads to the modifying of the video image stream, thereby enabling real-time video communication from the local participant to the second participant.

Abstract: Imaging apparatuses, mosaic image compositing methods, video stitching methods and edgemap generation methods are provided. An exemplary imaging apparatus includes data circuitry configured to provide image data for a plurality of frames of a source and processing circuitry configured to generate mosaic data for the source using the image data, wherein the processing circuitry is configured to convert the image data into a plurality of edgepoints for individual ones of the frames, to identify a plurality of common edgepoints in a first frame and a second frame, to determine a positional representation with respect to the first frame and the second frame using the common edgepoints, and to map image data from one of the first frame and the second frame into the mosaic data using the positional representation to generate a mosaic image of the source using the mosaic data.

Abstract: A method an apparatus uses a variational approach for space dependent gamut mapping. The method presents a new measure for the problem. A solution to the formulation according to the method is unique if the gamut of the target device is known. A quadratic programming efficient numerical solution provides real-time results.

Abstract: A system and a method solve the estimation problem of finding reflectance R and illumination L. The system and method to solve a functional of the unknown illumination L such that a minimum of the functional is assumed to yield a good estimate of the illumination L. Having a good estimate of the illumination L implies a good estimate of the reflectance R. The functional uses a variational framework to express requirements for the optimal solution. The requirements include: 1) that the illumination L is spatially smooth; 2) that the reflectance values are in the interval [0,1] —thus, when decomposing the image S, the solution should satisfy the constraint L>S; 3) that among all possible solutions, the estimate of the illumination L should be as close as possible to the image S, so that the contrast of the obtained R is maximal; and 4) that the reflectance R complies with typical natural image behavior (e.g., the reflectance is piece-wise smooth).

Abstract: An input image represented by a set of input pixel values is color-corrected by locally modifying the input pixel values according to pixel neighborhoods; and determining an output image having a set of output pixel values. Each set of output pixel values equals a non-linear combination of a set of input pixel values and its corresponding set of modified pixel values.

Abstract: A special ink consists of water and a humectant. A reusable paper includes a surface darkened by a water-insoluble material and a coating covering the darkened surface. The coating is made of a material that scatters light when dry and that becomes at least translucent when wetted by water. If the special ink is used to print on the reusable paper, the print will be visible for a limited period of time (e.g., half an hour). By the end of that time period, however, the special ink will have evaporated and the print will have disappeared completely from the reusable paper. The special ink may be applied to the reusable paper by an inkjet printer. An inkjet cartridge for such a printer includes a casing filled with the special ink.

Abstract: Current methodologies for color image halftoning produce prominent halftoning noise. Brightness variations between color dots placed at neighboring locations are a primary cause of color halftone noise. To correct this flaw, an Ink Relocation Postprocess to halftoning algorithms relocates ink drops between neighboring drop locations in order to reduce local brightness variations. Due to the intrinsic blurring side-effect of ink relocation, some enhancement may be desired. Two application-specific enhancement procedures are presented. In the first enhancement, ink relocation is suppressed in areas of fine detail. In the second enhancement, edge sharpening is performed after ink relocation.