Patents by Inventor David Walton
David Walton 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: 20260004534Abstract: A method for generating an augmented reality image from first and second images, wherein at least a portion of at least one of the first and the second image is captured from a real scene, identifies a confidence region in which a confident determination as to which of the first and second image to render in that region of the augmented reality image can be made, and identifies an uncertainty region in which it is uncertain as to which of the first and second image to render in that region of the augmented reality image. At least one blending factor value in the uncertainty region is determined based upon a similarity between a first colour value in the uncertainty region and a second colour value in the confidence region, and an augmented reality image is generated by combining, in the uncertainty region, the first and second images using the at least one blending factor value.Type: ApplicationFiled: September 8, 2025Publication date: January 1, 2026Inventor: David Walton
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Patent number: 12444145Abstract: A method for generating an augmented reality image from first and second images, wherein at least a portion of at least one of the first and the second image is captured from a real scene, identifies a confidence region in which a confident determination as to which of the first and second image to render in that region of the augmented reality image can be made, and identifies an uncertainty region in which it is uncertain as to which of the first and second image to render in that region of the augmented reality image. At least one blending factor value in the uncertainty region is determined based upon a similarity between a first colour value in the uncertainty region and a second colour value in the confidence region, and an augmented reality image is generated by combining, in the uncertainty region, the first and second images using the at least one blending factor value.Type: GrantFiled: November 27, 2023Date of Patent: October 14, 2025Assignee: Imagination Technologies LimitedInventor: David Walton
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Publication number: 20250315961Abstract: A method of analyzing one or more objects in a set of frames. A first frame is segmented to produce a plurality of first masks each identifying pixels belonging to a potential object-instance detected in the first frame. A first feature vector is extracted from the first frame for each potential object-instance detected therein, characterizing the potential object-instance. A second frame is segmented to produce a plurality of second masks each identifying pixels belonging to a potential object-instance detected in the second frame. A second feature vector is extracted for each potential object-instance detected in the second frame, characterizing the potential object-instance. A potential object-instance in the first frame is matched with one of the potential object-instances in the second frame.Type: ApplicationFiled: June 20, 2025Publication date: October 9, 2025Inventors: Aria Ahmadi, David Walton, Cagatay Dikici
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Patent number: 12347119Abstract: A method of generating a training dataset suitable for training machine learning algorithms to estimate the motion of objects, and for training a machine learning algorithm to perform motion estimation. A plurality of pairs of synthetic images are generated from obtained objects and backgrounds, each pair have a first frame and a second frame. The first frame includes a selection of objects in first positions and first orientations superimposed on a selected background, and the second frame includes the selection of objects in second positions and second orientations superimposed on the selected background. Also provided are processing systems configured to carry out these methods.Type: GrantFiled: March 28, 2024Date of Patent: July 1, 2025Assignee: Imagination Technologies LimitedInventors: Aria Ahmadi, David Walton, Cagatay Dikici
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Publication number: 20250173975Abstract: A method for generating an augmented reality image from first and second images, wherein at least a portion of at least one of the first and the second image is captured from a real scene, identifies a confidence region in which a confident determination as to which of the first and second image to render in that region of the augmented reality image can be made, and identifies an uncertainty region in which it is uncertain as to which of the first and second image to render in that region of the augmented reality image. At least one blending factor value in the uncertainty region is determined based upon a similarity between a first colour value in the uncertainty region and a second colour value in the confidence region, and an augmented reality image is generated by combining, in the uncertainty region, the first and second images using the at least one blending factor value.Type: ApplicationFiled: November 27, 2023Publication date: May 29, 2025Inventor: David Walton
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Patent number: 12198307Abstract: A method of rendering an image of a 3-D scene includes rendering a noisy image at a first resolution; obtaining one or more guide channels at the first resolution, and obtaining one or more corresponding guide channels at a second resolution. The second resolution may be the same resolution as, or a higher resolution than, the first resolution. For each of a plurality of local neighbourhoods, the method comprises: calculating the parameters of a model that approximates the noisy image as a function of the one or more guide channels (at the first resolution), and applying the calculated parameters to the one or more guide channels at the second resolution, to produce a denoised image at the second resolution.Type: GrantFiled: September 29, 2022Date of Patent: January 14, 2025Assignee: Imagination Technologies LimitedInventors: Szabolcs Cséfalvay, James Imber, David Walton, Insu Yu
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Publication number: 20240355016Abstract: A method for creating a metamer for an image for a display, the method comprising receiving a first input image, dividing the input image into a plurality of regions comprising a foveal region and at least one peripheral region, wherein each region of the plurality of regions comprises a plurality of pixels, determining, for each of the at least one peripheral region, the distribution of statistics associated with each of the at least one peripheral region, for each of the at least one peripheral region, identifying a metamer for the peripheral region wherein the metamer has similar and/or identical distribution of statistics to the associated peripheral region, and creating an output image based on the foveal region and the metamer for each of the at least one peripheral region such that the peripheral region of the output image is perceived to be the same as the peripheral region of the input image when perceived by a viewer of the image.Type: ApplicationFiled: June 28, 2022Publication date: October 24, 2024Inventors: Anthony Steed, Tobias Ritschel, David Walton, Rafael Kuffer Dos Anjos, Kaan Aksit, Sebastion Friston, David Swapp
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Publication number: 20240311981Abstract: A method of rendering an image of a 3-D scene includes rendering a noisy image and obtaining one or more guide channels. For each of a plurality of local neighborhoods, the method comprises: calculating the parameters of a model that approximates the noisy image as a function of the one or more guide channels, and applying the calculated parameters to produce a denoised image. At least one of (i) the noisy image, (ii) the one or more guide channels, and (iii) the denoised image, are stored in a quantized low-bitdepth format.Type: ApplicationFiled: May 28, 2024Publication date: September 19, 2024Inventors: Szabolcs Csefalvay, James Imber, David Walton, Insu Yu
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Patent number: 12073567Abstract: A method of analysing objects in a first frame and a second frame is disclosed. The method includes segmenting the frames, and matching at least one object in the first frame with a corresponding object in the second frame. The method optionally includes estimating the motion of the at least one matched object between the frames. Also disclosed is a method of generating a training dataset suitable for training machine learning algorithms to estimate the motion of objects. Also provided are processing systems configured to carry out these methods.Type: GrantFiled: February 28, 2021Date of Patent: August 27, 2024Assignee: Imagination Technologies LimitedInventors: Aria Ahmadi, David Walton, Cagatay Dikici
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Publication number: 20240265556Abstract: A method of generating a training dataset suitable for training machine learning algorithms to estimate the motion of objects, and for training a machine learning algorithm to perform motion estimation. A plurality of pairs of synthetic images are generated from obtained objects and backgrounds, each pair have a first frame and a second frame. The first frame includes a selection of objects in first positions and first orientations superimposed on a selected background, and the second frame includes the selection of objects in second positions and second orientations superimposed on the selected background. Also provided are processing systems configured to carry out these methods.Type: ApplicationFiled: March 28, 2024Publication date: August 8, 2024Inventors: Aria Ahmadi, David Walton, Cagatay Dikici
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Patent number: 12026855Abstract: A method of rendering an image of a 3-D scene includes rendering a noisy image and obtaining one or more guide channels. For each of a plurality of local neighborhoods, the method comprises: calculating the parameters of a model that approximates the noisy image as a function of the one or more guide channels, and applying the calculated parameters to produce a denoised image. At least one of (i) the noisy image, (ii) the one or more guide channels, and (iii) the denoised image, are stored in a quantized low-bitdepth format.Type: GrantFiled: September 30, 2022Date of Patent: July 2, 2024Assignee: Imagination Technologies LimitedInventors: Szabolcs Csefalvay, James Imber, David Walton, Insu Yu
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Patent number: 11915397Abstract: A method of rendering an image of a 3-D scene includes rendering a noisy image; and obtaining one or more guide channels. For each of a plurality of local neighbourhoods, the method comprises: calculating the parameters of a model that approximates the noisy image as a function of the one or more guide channels, and applying the calculated parameters to produce a denoised image. Tiling is used when calculating the parameters of the model.Type: GrantFiled: September 30, 2022Date of Patent: February 27, 2024Assignee: Imagination Technologies LimitedInventors: Szabolcs Csefalvay, James Imber, David Walton, Insu Yu
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Patent number: 11830153Abstract: A method for generating an augmented reality image from first and second images, wherein at least a portion of at least one of the first and the second image is captured from a real scene, identifies a confidence region in which a confident determination as to which of the first and second image to render in that region of the augmented reality image can be made, and identifies an uncertainty region in which it is uncertain as to which of the first and second image to render in that region of the augmented reality image. At least one blending factor value in the uncertainty region is determined based upon a similarity between a first colour value in the uncertainty region and a second colour value in the confidence region, and an augmented reality image is generated by combining, in the uncertainty region, the first and second images using the at least one blending factor value.Type: GrantFiled: August 9, 2021Date of Patent: November 28, 2023Assignee: Imagination Technologies LimitedInventor: David Walton
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Publication number: 20230177769Abstract: A method of rendering an image of a 3-D scene includes rendering a noisy image; and obtaining one or more guide channels. For each of a plurality of local neighbourhoods, the method comprises: calculating the parameters of a model that approximates the noisy image as a function of the one or more guide channels, and applying the calculated parameters to produce a denoised image. Tiling is used when calculating the parameters of the model.Type: ApplicationFiled: September 30, 2022Publication date: June 8, 2023Inventors: Szabolcs Csefalvay, James Imber, David Walton, Insu Yu
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Publication number: 20230118937Abstract: A method of rendering an image of a 3-D scene includes rendering a noisy image at a first resolution; obtaining one or more guide channels at the first resolution, and obtaining one or more corresponding guide channels at a second resolution. The second resolution may be the same resolution as, or a higher resolution than, the first resolution. For each of a plurality of local neighbourhoods, the method comprises: calculating the parameters of a model that approximates the noisy image as a function of the one or more guide channels (at the first resolution), and applying the calculated parameters to the one or more guide channels at the second resolution, to produce a denoised image at the second resolution.Type: ApplicationFiled: September 29, 2022Publication date: April 20, 2023Inventors: Szabolcs Csefalvay, James Imber, David Walton, Insu Yu
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Publication number: 20230114852Abstract: A method of rendering an image of a 3-D scene includes rendering a noisy image and obtaining one or more guide channels. For each of a plurality of local neighborhoods, the method comprises: calculating the parameters of a model that approximates the noisy image as a function of the one or more guide channels, and applying the calculated parameters to produce a denoised image. At least one of (i) the noisy image, (ii) the one or more guide channels, and (iii) the denoised image, are stored in a quantized low-bitdepth format.Type: ApplicationFiled: September 30, 2022Publication date: April 13, 2023Inventors: Szabolcs Csefalvay, James Imber, David Walton, Insu Yu
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Publication number: 20210366200Abstract: A method for generating an augmented reality image from first and second images, wherein at least a portion of at least one of the first and the second image is captured from a real scene, identifies a confidence region in which a confident determination as to which of the first and second image to render in that region of the augmented reality image can be made, and identifies an uncertainty region in which it is uncertain as to which of the first and second image to render in that region of the augmented reality image. At least one blending factor value in the uncertainty region is determined based upon a similarity between a first colour value in the uncertainty region and a second colour value in the confidence region, and an augmented reality image is generated by combining, in the uncertainty region, the first and second images using the at least one blending factor value.Type: ApplicationFiled: August 9, 2021Publication date: November 25, 2021Inventor: David Walton
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Publication number: 20210272295Abstract: A method of analysing objects in a first frame and a second frame is disclosed. The method includes segmenting the frames, and matching at least one object in the first frame with a corresponding object in the second frame. The method optionally includes estimating the motion of the at least one matched object between the frames. Also disclosed is a method of generating a training dataset suitable for training machine learning algorithms to estimate the motion of objects. Also provided are processing systems configured to carry out these methods.Type: ApplicationFiled: February 28, 2021Publication date: September 2, 2021Inventors: Aria Ahmadi, David Walton, Cagatay Dikici
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Patent number: 11087554Abstract: A method for generating an augmented reality image from first and second images, wherein at least a portion of at least one of the first and the second image is captured from a real scene, identifies a confidence region in which a confident determination as to which of the first and second image to render in that region of the augmented reality image can be made, and identifies an uncertainty region in which it is uncertain as to which of the first and second image to render in that region of the augmented reality image. At least one blending factor value in the uncertainty region is determined based upon a similarity between a first colour value in the uncertainty region and a second colour value in the confidence region, and an augmented reality image is generated by combining, in the uncertainty region, the first and second images using the at least one blending factor value.Type: GrantFiled: February 18, 2020Date of Patent: August 10, 2021Assignee: Imagination Technologies LimitedInventor: David Walton
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Publication number: 20200184733Abstract: A method for generating an augmented reality image from first and second images, wherein at least a portion of at least one of the first and the second image is captured from a real scene, identifies a confidence region in which a confident determination as to which of the first and second image to render in that region of the augmented reality image can be made, and identifies an uncertainty region in which it is uncertain as to which of the first and second image to render in that region of the augmented reality image. At least one blending factor value in the uncertainty region is determined based upon a similarity between a first colour value in the uncertainty region and a second colour value in the confidence region, and an augmented reality image is generated by combining, in the uncertainty region, the first and second images using the at least one blending factor value.Type: ApplicationFiled: February 18, 2020Publication date: June 11, 2020Inventor: David Walton