Patents by Inventor Arkady Ten
Arkady Ten 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: 10992936Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.Type: GrantFiled: November 11, 2019Date of Patent: April 27, 2021Assignee: Dolby Laboratories Licensing CorporationInventors: Wenhui Jia, Ajit Ninan, Arkady Ten, Gregory John Ward
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Patent number: 10957239Abstract: An output device is set to a first state in which a value of a first characteristic of the output device is set to a first value. Pixel adjustment values for plural gray levels are set to first pixel adjustment values in response to the output device being set to the first state. The value of the first characteristic is changed from the first value to a second value to set the output device to a second state. The pixel adjustment values for the plural gray levels are updated to second pixel adjustment values in response to the output device being set to the second state. The second pixel adjustment values are derived based on the second value of the first characteristic. Pixel values applied to a plurality of pixels of the output device are corrected based on the second pixel adjustment values.Type: GrantFiled: September 28, 2018Date of Patent: March 23, 2021Assignee: Apple Inc.Inventors: Kenneth I. Greenebaum, Gabriel Marcu, Arkady Ten, Ian C. Hendry
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Publication number: 20200105179Abstract: An output device is set to a first state in which a value of a first characteristic of the output device is set to a first value. Pixel adjustment values for plural gray levels are set to first pixel adjustment values in response to the output device being set to the first state. The value of the first characteristic is changed from the first value to a second value to set the output device to a second state. The pixel adjustment values for the plural gray levels are updated to second pixel adjustment values in response to the output device being set to the second state. The second pixel adjustment values are derived based on the second value of the first characteristic. Pixel values applied to a plurality of pixels of the output device are corrected based on the second pixel adjustment values.Type: ApplicationFiled: September 28, 2018Publication date: April 2, 2020Inventors: Kenneth I. Greenebaum, Gabriel Marcu, Arkady Ten, Ian C. Hendry
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Publication number: 20200084448Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.Type: ApplicationFiled: November 11, 2019Publication date: March 12, 2020Applicant: Dolby Laboratories Licensing CorporationInventors: Wenhui JIA, Ajit NINAN, Arkady TEN, Gregory John WARD
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Patent number: 10511837Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.Type: GrantFiled: March 25, 2019Date of Patent: December 17, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Wenhui Jia, Ajit Ninan, Arkady Ten, Gregory John Ward
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Publication number: 20190222844Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.Type: ApplicationFiled: March 25, 2019Publication date: July 18, 2019Applicant: Dolby Laboratories Licensing CorporationInventors: Wenhui JIA, Ajit NINAN, Arkady TEN, Gregory John WARD
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Patent number: 10264259Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.Type: GrantFiled: June 18, 2018Date of Patent: April 16, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Wenhui Jia, Ajit Ninan, Arkady Ten, Gregory John Ward
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Publication number: 20180302623Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.Type: ApplicationFiled: June 18, 2018Publication date: October 18, 2018Applicant: Dolby Laboratories Licensing CorporationInventors: Wenhui JIA, Ajit NINAN, Arkady TEN, Gregory John WARD
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Patent number: 10027961Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.Type: GrantFiled: September 25, 2017Date of Patent: July 17, 2018Assignee: Dolby Laboratories Licensing CorporationInventors: Wenhui Jia, Ajit Ninan, Arkady Ten, Gregory John Ward
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Publication number: 20180014015Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.Type: ApplicationFiled: September 25, 2017Publication date: January 11, 2018Applicant: Dolby Laboratories Licensing CorporationInventors: Wenhui JIA, Ajit NINAN, Arkady TEN, Gregory John WARD
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Patent number: 9819938Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.Type: GrantFiled: April 7, 2017Date of Patent: November 14, 2017Assignee: Dolby Laboratories Licensing CorporationInventors: Wenhui Jia, Ajit Ninan, Arkady Ten, Gregory John Ward
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Publication number: 20170214917Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.Type: ApplicationFiled: April 7, 2017Publication date: July 27, 2017Applicant: Dolby Laboratories Licensing CorporationInventors: Wenhui JIA, Ajit NINAN, Arkady TEN, Gregory John WARD
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Patent number: 9654781Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.Type: GrantFiled: January 18, 2016Date of Patent: May 16, 2017Assignee: Dolby Laboratories Licensing CorporationInventors: Wenhui Jia, Ajit Ninan, Arkady Ten, Gregory John Ward
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Patent number: 9467704Abstract: Image encoding and decoding are described. An input HDR image is coded using a coded tone-mapped image, a coded invertible function of a ratio image, and a look-up table representing the inverse of the invertible function, wherein the ratio image represents the pixel by pixel ratio of the luminance pixel values of the input image and the corresponding luminance values in the tone-mapped image. A method to generate the invertible function based on a cumulative histogram of the ratio image is presented.Type: GrantFiled: March 23, 2016Date of Patent: October 11, 2016Assignee: Dolby Laboratories Licensing CorporationInventor: Arkady Ten
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Publication number: 20160205405Abstract: Image encoding and decoding are described, An input HDR image is coded using a coded tone-mapped image, a coded invertible function of a ratio image, and a look-up table representing the inverse of the invertible function, wherein the ratio image represents the pixel by pixel ratio of the luminance pixel values of the input image and the corresponding luminance values in the tone-mapped image. A method to generate the invertible function based on a cumulative histogram of the ratio image is presented.Type: ApplicationFiled: March 23, 2016Publication date: July 14, 2016Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventor: Arkady TEN
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Patent number: 9374589Abstract: Image encoding and decoding are described. An input HDR image that includes a base image and a ratio image may be stored using two or more color description profiles. One profile defines the encoding color space of the base image and the second profile defines the encoding color space of the HDR metadata which may be different than the color space of the base image.Type: GrantFiled: May 12, 2015Date of Patent: June 21, 2016Assignee: Dolby Laboratories Licensing CorporationInventors: Arkady Ten, Ajit Ninan, Gaven Wang
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Publication number: 20160134873Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.Type: ApplicationFiled: January 18, 2016Publication date: May 12, 2016Applicant: Dolby Laboratories Licensing CorporationInventors: Wenhui JIA, Ajit NINAN, Arkady TEN, Gregory John WARD
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Publication number: 20150249832Abstract: Image encoding and decoding are described. An input HDR image that includes a base image and a ratio image may be stored using two or more color description profiles. One profile defines the encoding color space of the base image and the second profile defines the encoding color space of the HDR metadata which may be different than the color space of the base image.Type: ApplicationFiled: May 12, 2015Publication date: September 3, 2015Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Arkady TEN, Ajit NINAN, Gaven WANG
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Patent number: 9036042Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.Type: GrantFiled: July 10, 2013Date of Patent: May 19, 2015Assignee: Dolby Laboratories Licensing CorporationInventors: Wenhui Jia, Ajit Ninan, Arkady Ten, Gregory John Ward
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Patent number: 8781238Abstract: A decoder receives for decoding and post-processing for display an HDR (high dynamic range) image comprising a first coded image (e.g., a JPEG-HDR baseline image) and a second coded image (e.g., a JPEG-HDR ratio image). The first coded image is partially decoded and post-processed according to a post-processing command (e.g., scaling) to output a first decoded and post-processed image. The second coded image is also partially decoded and post-processed according to the post-processing command to output a second decoded and post-processed image. The first and the second decoded and post-processed images are combined to output a decoded HDR image according to the post-processing command.Type: GrantFiled: September 6, 2012Date of Patent: July 15, 2014Assignee: Dolby Laboratories Licensing CorporationInventors: Ajit Ninan, Arkady Ten