Patents by Inventor Gerwin Damberg
Gerwin Damberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9225951Abstract: One or more versions of video or other image content may be generated by obtaining first histogram data for a first version of the video content; obtaining a second version of the video content; obtaining second histogram data for the second version of the video content; generating a mapping from the second version of the video content to an additional version of the video content by performing a number of iterations of a progressive histogram matching algorithm, the number of iterations being fewer than a maximum number of iterations of the progressive histogram matching algorithm; and applying the mapping to generate the additional version of the video content from the second version of the video content.Type: GrantFiled: March 16, 2012Date of Patent: December 29, 2015Assignee: Dolby Laboratories Licensing CorporationInventors: Gerwin Damberg, Anders Ballestad
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Patent number: 9022582Abstract: Embodiments relate generally to computer-based image processing, and more particularly, to systems, computer-readable media, methods, integrated circuits, and apparatuses to facilitate operation of a projection system with relatively high dynamic range output by, among other things, providing subsets of light patterns along an optical path during respective first and second temporal fields associated with respective first and second illuminants. The projection system can synthesize color for projectable images by combining or otherwise using the subsets of light patterns with an array of color elements to produce projectable images with color in at least the visible spectrum.Type: GrantFiled: April 29, 2010Date of Patent: May 5, 2015Assignee: Dolby Laboratories Licensing CorporationInventors: Michael Kang, Gerwin Damberg
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Publication number: 20150084978Abstract: A global image adjustment, such as dynamic range adjustment is established based on image characteristics. The image adjustment is based more heavily on pixel values in image areas identified as being important by one or more saliency mapping algorithms. In one application to dynamic range adjustment, a saliency map is applied to create a weighed histogram and a transformation is determined from the weighted histogram. Artifacts typical of local adjustment schemes may be avoided.Type: ApplicationFiled: November 26, 2014Publication date: March 26, 2015Inventors: Anders BALLESTAD, Gerwin DAMBERG
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Patent number: 8976080Abstract: Several embodiments of projection systems are disclosed that comprise a plurality of controllable emitters, each said emitter providing light for a light path; a plurality of first optical elements, each said first optical element receiving light from one of said emitters; a controllable modulator receiving light from said plurality of first optical elements; a plurality of conduits, each said conduit disposed over a portion of said controllable modulator; a plurality of second optical elements, each of said second optical elements receiving light from at least one of said plurality of conduits, and a controller for sending control signals to said controllable emitters and said controllable modulator. The illumination from the emitters may form a plurality of overlapping areas of illumination upon a projection screen where the image is intended to be formed.Type: GrantFiled: August 29, 2012Date of Patent: March 10, 2015Assignee: Dolby Laboratories Licensing CorporationInventors: Martin J. Richards, Gerwin Damberg, Gregory John Ward, Kenneth Schindler
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Patent number: 8907971Abstract: A global image adjustment, such as dynamic range adjustment is established based on image characteristics. The image adjustment is based more heavily on pixel values in image areas identified as being important by one or more saliency mapping algorithms. In one application to dynamic range adjustment, a saliency map is applied to create a weighed histogram and a transformation is determined from the weighted histogram. Artifacts typical of local adjustment schemes may be avoided.Type: GrantFiled: April 9, 2012Date of Patent: December 9, 2014Assignee: Dolby Laboratories Licensing CorporationInventors: Anders Ballestad, Gerwin Damberg
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Patent number: 8831343Abstract: Embodiments of the invention relate generally to image and display processing, and more particularly, to systems, apparatuses, integrated circuits, computer-readable media, and methods that facilitate the prediction of the appearance of color in images for different viewing environments, including high dynamic range images. In some embodiments a method can modify color associated with a source environment at a target environment. The method can include applying different non-linear functions to transform subsets of data representing a color of a sample at the source environment into transformed subsets of data, and generating data representing a chroma correlate as an appearance correlate independent of data representing a hue-related correlate. The chroma correlate can be configured to generate the color at a device at the target environment.Type: GrantFiled: January 18, 2010Date of Patent: September 9, 2014Assignee: Dolby Laboratories Licensing CorporationInventors: Timo Kunkel, Erik Reinhard, Gerwin Damberg
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Publication number: 20140160143Abstract: Source image content is adapted to a target display. Target image content associated with the target display is provided. A histogram is computed for the target image content. A prominent feature present in the target histogram is determined. A histogram is computed for the source image content. The source content histogram is manipulated to reflect the determined target histogram prominent feature(s). Adapted source image content is generated based on the manipulated source histograms(s). Another prominent feature present in the target histogram is determined. The source histogram is further manipulated to reflect the other prominent determined target histogram features. Further adapted source image content is generated based on the further manipulated source histogram if the adapted source image content has insufficient image quality and perceptual color characteristics.Type: ApplicationFiled: July 6, 2012Publication date: June 12, 2014Applicant: Dolby Laboratories Licensing CorporationInventors: Anders Ballestad, Gerwin Damberg
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Publication number: 20140043352Abstract: Projection displays include a highlight projector and a main projector. Highlights projected by the highlight projector boost luminance in highlight areas of a base image projected by the main projector. Various highlight projectors including steerable beams, holographic projectors and spatial light modulators are described.Type: ApplicationFiled: April 11, 2012Publication date: February 13, 2014Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Gerwin Damberg, Martin J. Richards, Craig Todd
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Publication number: 20140002737Abstract: One or more versions of video or other image content may be generated by obtaining first histogram data for a first version of the video content; obtaining a second version of the video content; obtaining second histogram data for the second version of the video content; generating a mapping from the second version of the video content to an additional version of the video content by performing a number of iterations of a progressive histogram matching algorithm, the number of iterations being fewer than a maximum number of iterations of the progressive histogram matching algorithm; and applying the mapping to generate the additional version of the video content from the second version of the video content.Type: ApplicationFiled: March 16, 2012Publication date: January 2, 2014Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Gerwin Damberg, Anders Ballestad
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Patent number: 8493313Abstract: A process for reducing noise and temporal artifacts (e.g. walking LEDs) on a dual modulation display system by applying temporal filtering to rear modulation signals of a sequence of video frames. Flare and dimming rates are calculated for a current frame in the video. If a flare rate threshold is exceeded, an intensity of the backlight is limited to a predetermined flare rate. If a dimming rate threshold is exceeded, the backlight intensity is limited to a predetermined dimming rate. The limitations are applied, for example, on an element-by-element basis. In the event of a scene change, the limitations do not need to be applied. A forward modulation signal is calculated by taking into account any applied backlight limitations.Type: GrantFiled: February 13, 2008Date of Patent: July 23, 2013Assignee: Dolby Laboratories Licensing CorporationInventors: Gerwin Damberg, Helge Seetzen
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Patent number: 8483479Abstract: Embodiments relate generally to image and display processing, and more particularly, to systems, apparatuses, integrated circuits, computer-readable media, and methods that detect light sources in images to facilitate the prediction of the appearance of color for the images in different viewing environments and/or dynamic range modification based on the light sources (e.g., perceived light sources). In some embodiments, a method includes detecting pixels representing a portion of an image, specifying that a subset of pixels for the image portion is associated with a light source, and determining a parameter for the subset of pixels, the parameter being configured to generate a color in a reproduced image that includes the image portion. In one embodiment, light sources are detected to facilitate converting between high dynamic ranges and low dynamic ranges of luminance values.Type: GrantFiled: May 4, 2010Date of Patent: July 9, 2013Assignee: Dolby Laboratories Licensing CorporationInventors: Timo Kunkel, Erik Reinhard, Gerwin Damberg, Anders Ballestad
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Publication number: 20130038790Abstract: Apparatus and methods for mapping video signal parameters such as tone and color may be applied at various points in a video generation and delivery pipeline. apparatus may be configured to control mappings based on a range of inputs which may include one or more of: ambient conditions, user inputs, control information, adaptation models. Apparatus and methods may be applied to display video or other images so as to preserve a creative intent embodied in video or other image data.Type: ApplicationFiled: February 18, 2011Publication date: February 14, 2013Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Helge Seetzen, Robin Atkins, Neil W. Messmer, Gerwin Damberg
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Publication number: 20120320342Abstract: Several embodiments of projection systems are disclosed that comprise a plurality of controllable emitters, each said emitter providing light for a light path; a plurality of first optical elements, each said first optical element receiving light from one of said emitters; a controllable modulator receiving light from said plurality of first optical elements; a plurality of conduits, each said conduit disposed over a portion of said controllable modulator; a plurality of second optical elements, each of said second optical elements receiving light from at least one of said plurality of conduits, and a controller for sending control signals to said controllable emitters and said controllable modulator. The illumination from the emitters may form a plurality of overlapping areas of illumination upon a projection screen where the image is intended to be formed.Type: ApplicationFiled: August 29, 2012Publication date: December 20, 2012Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Martin J. Richards, Gerwin Damberg, Gregory John Ward, Kenneth Schindler
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Publication number: 20120256941Abstract: A global image adjustment, such as dynamic range adjustment is established based on image characteristics. The image adjustment is based more heavily on pixel values in image areas identified as being important by one or more saliency mapping algorithms. In one application to dynamic range adjustment, a saliency map is applied to create a weighed histogram and a transformation is determined from the weighted histogram. Artifacts typical of local adjustment schemes may be avoided.Type: ApplicationFiled: April 9, 2012Publication date: October 11, 2012Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Anders Ballestad, Gerwin Damberg
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Publication number: 20120212707Abstract: Several embodiments of projection systems are disclosed that comprise a plurality of controllable emitters, each said emitter providing light for a light path; a plurality of first optical elements, each said first optical element receiving light from one of said emitters; a controllable modulator receiving light from said plurality of first optical elements; a plurality of conduits, each said conduit disposed over a portion of said controllable modulator; a plurality of second optical elements, each of said second optical elements receiving light from at least one of said plurality of conduits, and a controller for sending control signals to said controllable emitters and said controllable modulator. The illumination from the emitters may form a plurality of overlapping areas of illumination upon a projection screen where the image is intended to be formed.Type: ApplicationFiled: February 27, 2012Publication date: August 23, 2012Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Martin J. Richards, Gerwin Damberg, Gregory J. Ward
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Publication number: 20120051635Abstract: Embodiments relate generally to image and display processing, and more particularly, to systems, apparatuses, integrated circuits, computer-readable media, and methods that detect light sources in images to facilitate the prediction of the appearance of color for the images in different viewing environments and/or dynamic range modification based on the light sources (e.g., perceived light sources). In some embodiments, a method includes detecting pixels representing a portion of an image, specifying that a subset of pixels for the image portion is associated with a light source, and determining a parameter for the subset of pixels, the parameter being configured to generate a color in a reproduced image that includes the image portion. In one embodiment, light sources are detected to facilitate converting between high dynamic ranges and low dynamic ranges of luminance values.Type: ApplicationFiled: May 4, 2010Publication date: March 1, 2012Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Timo Kunkel, Erik Reinhard, Gerwin Damberg, Anders Ballestad
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Patent number: 8125702Abstract: A display has first and second spatial light modulators for modulating light from a light source. The first spatial light modulator has a plurality of elements switchable between ON and OFF states according to a pattern having a spatially-varying density. Transfer optics blur and carry light modulated by the first spatial light modulator to the second spatial light modulator to yield a light field at the second spatial light modulator. The second spatial light modulator has a plurality of elements switchable between ON and OFF states to perform temporal dithering of the light field to provide a reconstruction of the image.Type: GrantFiled: May 22, 2009Date of Patent: February 28, 2012Assignee: Dolby Laboratories Licensing CorporationInventors: Gregory John Ward, Gerwin Damberg, Helge Seetzen
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Publication number: 20120038693Abstract: Embodiments relate generally to computer-based image processing, and more particularly, to systems, computer-readable media, methods, integrated circuits, and apparatuses to facilitate operation of a projection system with relatively high dynamic range output by, among other things, providing subsets of light patterns along an optical path during respective first and second temporal fields associated with respective first and second illuminants. The projection system can synthesize color for projectable images by combining or otherwise using the subsets of light patterns with an array of color elements to produce projectable images with color in at least the visible spectrum.Type: ApplicationFiled: April 29, 2010Publication date: February 16, 2012Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Michael Kang, Gerwin Damberg
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Publication number: 20110305391Abstract: Embodiments of the invention relate generally to image and display processing, and more particularly, to systems, apparatuses, integrated circuits, computer-readable media, and methods that facilitate the prediction of the appearance of color in images for different viewing environments, including high dynamic range images. In some embodiments a method can modify color associated with a source environment at a target environment. The method can include applying different non-linear functions to transform subsets of data representing a color of a sample at the source environment into transformed subsets of data, and generating data representing a chroma correlate as an appearance correlate independent of data representing a hue-related correlate. The chroma correlate can be configured to generate the color at a device at the target environment.Type: ApplicationFiled: January 18, 2010Publication date: December 15, 2011Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Timo Kunkel, Erik Reinhard, Gerwin Damberg
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Publication number: 20090225234Abstract: A display has first and second spatial light modulators for modulating light from a light source. The first spatial light modulator has a plurality of elements switchable between ON and OFF states according to a pattern having a spatially-varying density. Transfer optics blur and carry light modulated by the first spatial light modulator to the second spatial light modulator to yield a light field at the second spatial light modulator. The second spatial light modulator has a plurality of elements switchable between ON and OFF states to perform temporal dithering of the light field to provide a reconstruction of the image.Type: ApplicationFiled: May 22, 2009Publication date: September 10, 2009Applicant: Dolby Laboratories Licensing CorporationInventors: Gregory John WARD, Gerwin DAMBERG, Helge SEETZEN