Patents by Inventor Hassane Guermoud
Hassane Guermoud 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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Publication number: 20240098434Abstract: A method and device for audio steering from a loudspeaker line array of a display device toward a user direction is disclosed. Data corresponding to a viewer gesture is obtained from at least one sensor of a display device. A distance and an angle between the viewer and a plurality of loudspeakers coupled to the display is determined based on the obtained data. Phase shifting is applied to an audio signal powering the plurality of loudspeakers based on the determined distance and angle to audio steer toward the user direction.Type: ApplicationFiled: November 29, 2021Publication date: March 21, 2024Inventors: Hassane Guermoud, Michel Kerdranvat, Alexey Ozerov
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Publication number: 20230421853Abstract: A user may want to share segments of content, such as video sequences of news reporting or sports events received from a service provider, SR, or content provider, CP, with the members of his social network using the user's social networking application. Therefore, a method is provided for sharing content that may include receiving a content segment by a Transmitter/Receiver Device, TRD. The TRD may transmit, to the SP/CP, a request for sharing the currently received content segment. The SP/CP may receive the request from the TRD and may prepare the content segment for sharing, for example by uploading it to a replay platform. The TRD may receive, from the SP/CP an indication that the content segment has been stored on the replay platform, including a locator to the content segment. The TRD may publish the locator in the user's social network application.Type: ApplicationFiled: November 2, 2021Publication date: December 28, 2023Inventors: Philippe Schmouker, Thomas Morin, Hassane Guermoud
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Publication number: 20230168746Abstract: A user interface device including memory configured to store instructions and at least one hardware processor configured to execute the instructions to obtain, from at least one sensor, sensor data corresponding to a user gesture, determine a user interface gesture that matches the sensor data, obtain parameters for the determined interface gesture, and upon obtaining the parameters for the determined interface gesture, use the sensor data and the parameters for the determined interface gesture to estimate the user gesture in a user interface. Also provided is a method.Type: ApplicationFiled: June 22, 2021Publication date: June 1, 2023Inventors: Thomas Morin, Serge Defrance, Hassane Guermoud, Sylvain Lelievre
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Patent number: 11348210Abstract: The present disclosure involves expanding the dynamic range of low dynamic range images and concerns obtaining a first expansion exponent map for an image, and determining, for each pixel of the image, an expanded luminance value by performing an exponentiation with an expansion exponent value determined from the first expansion exponent map on a luminance value of the pixel, and can include calculating, for the pixel of the image, an expansion correcting value by using a modulating function that takes as input a value representative of the luminance of the pixel and is an increasing function whose increase is higher for higher input values, and subtracting the expansion correcting value from the expansion exponent value of the first expansion exponent map.Type: GrantFiled: December 12, 2018Date of Patent: May 31, 2022Assignee: InterDigital VC Holdings, Inc.Inventors: Hassane Guermoud, Laurent Cauvin, Jonathan Kervec, Tania Pouli
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Publication number: 20220101502Abstract: A lower dynamic range visual content (21) of a virtual reality or VR scene represented in a curved shape form is adapted to a higher dynamic range display of the virtual reality scene. At least two planar key views (230) of the VR scene area obtained at least two parameter values (240) respectively associated with those planar key views are obtained, corresponding to at least one parameter adapted to expand a dynamic range of a visual content, and a higher dynamic range visual content (22) corresponding to the lower dynamic range visual content in at least part of the VR scene extending beyond the planar key views is determined, based on the parameter values. Applications to Inverse Tone Mapping.Type: ApplicationFiled: December 9, 2021Publication date: March 31, 2022Applicant: InterDigital VC Holdings, Inc.Inventors: Tania Pouli, Jonathan Kervec, Hassane Guermoud
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Patent number: 11270417Abstract: For the processing of an image with a tone-mapping function, it is known to select a tone-mapping function among a reference collection of reference tone-mapping functions and to apply the selected tone-mapping function to colors of this image. When applying this method to images of a video content, it is proposed to add, after such a selection for an image, a step of validation of this selection for the next images of video content. Advantage: prevent too frequent changes of tone-mapping function inside a video content, lower temporal instabilities and visual discomfort during visualization.Type: GrantFiled: May 1, 2019Date of Patent: March 8, 2022Assignee: InterDigital VC Holdings, Inc.Inventors: Tania Pouli, Laurent Cauvin, Jonathan Kervec, Hassane Guermoud
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Patent number: 11238572Abstract: A lower dynamic range visual content (21) of a virtual reality or VR scene represented in a curved shape form is adapted to a higher dynamic range display of the virtual reality scene. At least two views planar key views (230) of the VR scene area obtained, at least two parameter values (240) respectively associated with those planar key views are obtained, corresponding to at least one parameter adapted to expand a dynamic range of a visual content, and a higher dynamic range visual content (22) corresponding to the lower dynamic range visual content in at least part of the VR scene extending beyond the planar key views is determined, based on the parameter values. Applications to Inverse Tone Mapping.Type: GrantFiled: September 26, 2018Date of Patent: February 1, 2022Assignee: InterDigital VC Holdings, Inc.Inventors: Tania Pouli, Jonathan Kervec, Hassane Guermoud
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Publication number: 20210272250Abstract: For the processing of an image with a tone-mapping function, it is known to select a tone-mapping function among a reference collection of reference tone-mapping functions and to apply the selected tone-mapping function to colors of this image. When applying this method to images of a video content, it is proposed to add, after such a selection for an image, a step of validation of this selection for the next images of video content. Advantage: prevent too frequent changes of tone-mapping function inside a video content, lower temporal instabilities and visual discomfort during visualization.Type: ApplicationFiled: May 1, 2019Publication date: September 2, 2021Inventors: Tania Pouli, Laurent CAUVIN, Jonathan KERVEC, Hassane GUERMOUD
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Publication number: 20200320672Abstract: The present disclosure involves expanding the dynamic range of low dynamic range images and concerns obtaining a first expansion exponent map for an image, and determining, for each pixel of the image, an expanded luminance value by performing an exponentiation with an expansion exponent value determined from the first expansion exponent map on a luminance value of the pixel, and can include calculating, for the pixel of the image, an expansion correcting value by using a modulating function that takes as input a value representative of the luminance of the pixel and is an increasing function whose increase is higher for higher input values, and subtracting the expansion correcting value from the expansion exponent value of the first expansion exponent map.Type: ApplicationFiled: December 12, 2018Publication date: October 8, 2020Inventors: Hassane GUERMOUD, Laurent CAUVIN, Jonathan KERVEC, Tania POULI
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Publication number: 20200242742Abstract: A lower dynamic range visual content (21) of a virtual reality or VR scene represented in a curved shape form is adapted to a higher dynamic range display of the virtual reality scene. At least two views planar key views (230) of the VR scene area obtained, at least two parameter values (240) respectively associated with those planar key views are obtained, corresponding to at least one parameter adapted to expand a dynamic range of a visual content, and a higher dynamic range visual content (22) corresponding to the lower dynamic range visual content in at least part of the VR scene extending beyond the planar key views is determined, based on the parameter values. Applications to Inverse Tone Mapping.Type: ApplicationFiled: September 26, 2018Publication date: July 30, 2020Inventors: Tania POULI, Jonathan KERVEC, Hassane GUERMOUD
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Patent number: 10572984Abstract: A method and apparatus for inverse tone mapping of an LDR image with computer generated imagery components, such components being also called visual effects, are disclosed. The disclosed method includes accessing a first LDR image, the first LDR image being obtained from at least one computer generated imagery component rendered and composited into an LDR reference image or background plate; determining an HDR lighting indication responsive to information extracted from a part of the first LDR image and a respective part of a first intermediate HDR image obtained by applying a first pass inverse tone mapping to the first LDR image; obtaining a second intermediate HDR image by applying a second pass inverse tone mapping to the LDR reference image; obtaining the first HDR image from the computer generated imagery components rendered using HDR lighting indication and composited into the second intermediate HDR image.Type: GrantFiled: March 8, 2018Date of Patent: February 25, 2020Assignee: INTERDIGITAL CE PATENT HOLDINGSInventors: Emmanuel Jolly, Jurgen Stauder, Hassane Guermoud
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Patent number: 10535124Abstract: The disclosure relates generally to the field of high dynamic range (HDR) imaging and addresses the way of expanding the dynamic range of low dynamic range images. A method having the steps of obtaining expansion exponent map data for each one of a plurality of clusters of reference images, obtaining, for each cluster, one feature, called visual feature, representative of the luminance of reference images of the cluster, obtaining a visual feature for the image, comparing the visual feature of the image with the visual features of the clusters according to a distance criterion, selecting the cluster, the visual feature of which is the closest to the visual feature of the image, and applying an expansion exponent map defined by the expansion exponent map data of the selected cluster to the image is described.Type: GrantFiled: May 12, 2017Date of Patent: January 14, 2020Assignee: INTERDIGITAL VC HOLDINGS, INC.Inventors: Hassane Guermoud, Jonathan Kervec, Laurent Cauvin
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Publication number: 20190236761Abstract: A method and an apparatus for generating HDR images with reduced clipped areas are disclosed. The method including receiving a lower dynamic range image, called LDR image, and a higher dynamic range image, called HDR image, of a scene, the HDR image is obtained by inverse tone mapping applied to the LDR image; determining new bright areas of the HDR image that are non-present in the LDR image from bright areas detected in the HDR image and bright areas detected the LDR image; and modifying the luminance of the new bright areas of the HDR image by mixing luminance values of the new bright areas of the HDR image with luminance values of areas of the LDR image corresponding to the new bright areas of the HDR image.Type: ApplicationFiled: January 31, 2019Publication date: August 1, 2019Inventors: Laurent CAUVIN, Emmanuel JOLLY, Jonathan KERVEC, Hassane GUERMOUD
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Patent number: 10298897Abstract: Method wherein each image of the content is transformed using at least one pre-transformed image which is associated with a key image of this content wherein, from each key image and an associated pre-transformed image, a color transform is derived, and wherein each color transform is applied to a selection of images of this content which is associated with said key image. Applied to a content broadcast system comprising a server and a receiver to which are connected several types of display devices, the invention advantageously makes it possible to adapt the content to these different types.Type: GrantFiled: December 28, 2011Date of Patent: May 21, 2019Assignee: INTERDIGITAL MADISON PATENT HOLDINGSInventors: Hassane Guermoud, Jurgen Stauder, Laurent Blonde
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Publication number: 20180260942Abstract: A method and apparatus for inverse tone mapping of an LDR image with computer generated imagery components, such components being also called visual effects, are disclosed. The disclosed method includes accessing a first LDR image, the first LDR image being obtained from at least one computer generated imagery component rendered and composited into an LDR reference image or background plate; determining an HDR lighting indication responsive to information extracted from a part of the first LDR image and a respective part of a first intermediate HDR image obtained by applying a first pass inverse tone mapping to the first LDR image; obtaining a second intermediate HDR image by applying a second pass inverse tone mapping to the LDR reference image; obtaining the first HDR image from the computer generated imagery components rendered using HDR lighting indication and composited into the second intermediate HDR image.Type: ApplicationFiled: March 8, 2018Publication date: September 13, 2018Inventors: Emmanuel JOLLY, Jurgen STAUDER, Hassane GUERMOUD
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Patent number: 10033962Abstract: A method for converting a standard dynamic range (SDR) sequence into a high dynamic range (HDR) sequence is described. The method includes determining (S1) successive shots in the SDR sequence by cut detection, detecting (S2) if the SDR sequence comprises a sub-sequence of at least two successive short shots having a duration lower than D1, said subsequence comprising at least one bright shot having a luminance and a size greater than L1 and SZ1 respectively, and mapping (S3) the luminance range of bright shots of the detected subsequence from the low dynamic range to a first high dynamic range and mapping the other shots of the SDR sequence from the standard dynamic range to a second high dynamic range in order to generate the HDR sequence, the first high dynamic range having a maximal value Lmax1 lower than that of the second high dynamic range Lmax2.Type: GrantFiled: October 20, 2017Date of Patent: July 24, 2018Assignee: THOMSON LicensingInventors: Hassane Guermoud, Cedric Thebault, Jonathan Kervec
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Publication number: 20180115742Abstract: A method for converting a standard dynamic range (SDR) sequence into a high dynamic range (HDR) sequence is described. The method includes determining (S1) successive shots in the SDR sequence by cut detection, detecting (S2) if the SDR sequence comprises a sub-sequence of at least two successive short shots having a duration lower than D1, said subsequence comprising at least one bright shot having a luminance and a size greater than L1 and SZ1 respectively, and mapping (S3) the luminance range of bright shots of the detected subsequence from the low dynamic range to a first high dynamic range and mapping the other shots of the SDR sequence from the standard dynamic range to a second high dynamic range in order to generate the HDR sequence, the first high dynamic range having a maximal value Lmax1 lower than that of the second high dynamic range Lmax2.Type: ApplicationFiled: October 20, 2017Publication date: April 26, 2018Inventors: Hassane GUERMOUD, Cedric THEBAULT, Jonathan KERVEC
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Publication number: 20170337670Abstract: The disclosure relates generally to the field of high dynamic range (HDR) imaging and addresses the way of expanding the dynamic range of low dynamic range images. A method having the steps of obtaining expansion exponent map data for each one of a plurality of clusters of reference images, obtaining, for each cluster, one feature, called visual feature, representative of the luminance of reference images of the cluster, obtaining a visual feature for the image, comparing the visual feature of the image with the visual features of the clusters according to a distance criterion, selecting the cluster, the visual feature of which is the closest to the visual feature of the image, and applying an expansion exponent map defined by the expansion exponent map data of the selected cluster to the image is described.Type: ApplicationFiled: May 12, 2017Publication date: November 23, 2017Inventors: Hassane GUERMOUD, Jonathan KERVEC, Laurent CAUVIN
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Publication number: 20160241908Abstract: A method and an apparatus (2) for simultaneously displaying a first video program and supervising a second video program are described. The method comprises receiving (10) a first and a second video program. A region-of-interest is identified (11) in the second video program. The first video program and information corresponding to at least a portion of the region-of-interest of the second video program are provided (12) to a display, while at least a part of the second video program is recorded (13). In response to a change of the provided information corresponding to at least a portion of the region-of-interest, at least a part of the recorded second video program is retrieved (14) and provided (15) to a display.Type: ApplicationFiled: September 18, 2014Publication date: August 18, 2016Inventors: Hassane GUERMOUD, Louis CHEVALLIER, Jean-Ronan VIGOUROUX
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Patent number: 9418701Abstract: The invention relates to a method for determining identifiers associated with segments of a document. Each segment consists of a series of individual elements such as images or sound sequences. Each segment of the document is subdivided into a determined number of portions comprising the same number of individual elements. An individual element is extracted from the most central portion of each segment and associated with the segment as identifier. The invention also relates to the receiver capable of implementing the method.Type: GrantFiled: October 15, 2012Date of Patent: August 16, 2016Assignee: THOMSON LICENSINGInventors: Louis Chevallier, Jean-Ronan Vigouroux, Hassane Guermoud