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公开(公告)号：US11842236B2
公开(公告)日：2023-12-12
申请号：US17087723
申请日：2020-11-03
Applicant: Apple Inc.
Inventor： Arun Srivatsan Rangaprasad , Anselm Grundhoefer , Dhruv A. Govil
IPC: G06F3/04847 , G06K19/06 , G06T7/80 , G06F3/04842
CPC classification number: G06K19/06037 , G06F3/04842 , G06F3/04847 , G06T7/80 , G06T2207/10024
Abstract: Various implementations disclosed herein include devices, systems, and methods that select colors for visual markers that include colored markings encoding data. In some implementations, the colors are automatically or semi-automatically selected. In some implementations, the colors are selected to remain sufficiently detectable despite changes in lighting conditions or printing/display conditions. In some implementations, a set of colors selectable for use in a visual marker is obtained. Then, measures of distance between a plurality of colors of the set of colors is determined, and a subset of the set of colors for the visual marker is selected based on the measure of distance between colors of the subset of colors. In some implementations, the visual marker appearance includes graphical elements encoding data using the subset of colors. In some implementations, input is received using a GUI on a display to determine multiple colors based on a source image.
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公开(公告)号：US12209902B1
公开(公告)日：2025-01-28
申请号：US18238712
申请日：2023-08-28
Applicant: Apple Inc.
Inventor： Arun Srivatsan Rangaprasad , Anselm Grundhoefer
IPC: G01J1/42
Abstract: Various implementations disclosed herein include devices, systems, and methods that determine a type of environment based on light assessment. For example, an example process may include obtaining a first set of light data from a first sensor (e.g., a multiwavelength ambient light sensor) in a physical environment that includes a light source. The first set of light data may identify diffuse light in each of multiple light wavelength ranges that is received by the first sensor. The process may further include obtaining a second set of data from the second sensor in the physical environment. The process may further include determining, based on the first set of light data and the second set of data, that the physical environment is a first type of environment (e.g., indoor) or a second type of environment (e.g., outdoor) based on a set of criteria (e.g., artificial light vs. sunlight).
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公开(公告)号：US11977951B1
公开(公告)日：2024-05-07
申请号：US18213034
申请日：2023-06-22
Applicant: Apple Inc.
CPC classification number: G06K7/10722 , G06K7/1417
Abstract: Various implementations disclosed herein include devices, systems, and methods that match image portions of a first set of image portions and image portions of another set of image portions. This may be performed in a such a way that the sum of descriptor distances of the matched image portions is optimized in a globally optimal way. In some implementations, the matching is subject to one or more constraints, e.g., ensuring that each image portion of the first data set is matched with at least one image portion of the second data set and ensuring that each image portion of the second data set is matched with only one image portion of the first data set.
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公开(公告)号：US11955099B2
公开(公告)日：2024-04-09
申请号：US18099436
申请日：2023-01-20
Applicant: Apple Inc.
Inventor： Arun Srivatsan Rangaprasad , Anselm Grundhoefer
CPC classification number: G09G5/02 , G06V10/60 , G09G2360/144
Abstract: Various implementations disclosed herein include methods, electronic devices, and systems for performing perceptual-based color correction based on chromaticity values. To that end, in some implementations, a method is performed at an electronic device with one or more processors, a non-transitory memory, and a see-through display. The method includes determining a chromaticity value associated with ambient light from a physical environment. The chromaticity value quantifies the ambient light. The method includes determining a set of color correction values based on a function of the chromaticity value and image data. The set of color correction values and the chromaticity value together satisfy one or more perceptual criteria. The method includes modifying the image data in order to generate display data based on a function of the set of color correction values. The method includes displaying the display data on the see-through display.
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公开(公告)号：US11915097B1
公开(公告)日：2024-02-27
申请号：US17143411
申请日：2021-01-07
Applicant: Apple Inc.
Inventor： Mohamed Selim Ben Himane , Anselm Grundhoefer , Arun Srivatsan Rangaprasad , Jeffrey S. Norris , Paul Ewers , Scott G. Wade , Thomas G. Salter , Tom Sengelaub
CPC classification number: G06K7/1443 , G06K7/1417 , G06K7/1456 , G06N20/00 , G06T7/90
Abstract: Various implementations disclosed herein include devices, systems, and methods that provide color visual markers that include colored markings that encode data, where the colors of the colored markings are determined by scanning (e.g., detecting the visual marker using a sensor of an electronic device) the visual marker itself. In some implementations, a visual marker is detected in an image of a physical environment. In some implementations, the visual marker is detected in the image by detecting a predefined shape of a first portion of the visual marker in the image. Then, a color-interpretation scheme is determined for interpreting colored markings of the visual marker that encode data by identifying a set of colors at a corresponding set of predetermined locations on the visual marker. Then, the data of the visual marker is decoded using the colored markings and the set of colors of the color-interpretation scheme.
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Patent Agency Ranking
公开(公告)号：US20230298541A1
公开(公告)日：2023-09-21
申请号：US18099436
申请日：2023-01-20
Applicant: Apple Inc.
Inventor： Arun Srivatsan Rangaprasad , Anselm Grundhoefer
CPC classification number: G09G5/02 , G06V10/60 , G09G2360/144
Abstract: Various implementations disclosed herein include methods, electronic devices, and systems for performing perceptual-based color correction based on chromaticity values. To that end, in some implementations, a method is performed at an electronic device with one or more processors, a non-transitory memory, and a see-through display. The method includes determining a chromaticity value associated with ambient light from a physical environment. The chromaticity value quantifies the ambient light. The method includes determining a set of color correction values based on a function of the chromaticity value and image data. The set of color correction values and the chromaticity value together satisfy one or more perceptual criteria. The method includes modifying the image data in order to generate display data based on a function of the set of color correction values. The method includes displaying the display data on the see-through display.
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公开(公告)号：US12133016B1
公开(公告)日：2024-10-29
申请号：US18242606
申请日：2023-09-06
Applicant: Apple Inc.
Inventor： Arun Srivatsan Rangaprasad , Anselm Grundhoefer
CPC classification number: H04N5/58 , G01J1/4204 , H04N23/70
Abstract: Various implementations disclosed herein include devices, systems, and methods that estimate a location of a light source based on ambient light data. For example, an example process may include acquiring ambient light data from an ambient light sensor (ALS) during movement of a device in a physical environment, acquiring motion data from a motion sensor during the movement of the device, determining, based on the ambient light data and the motion data, estimates of three-dimensional (3D) locations of a light source with respect to the device during the movement of the device, and tracking a location of the device in a 3D coordinate system during the movement of the device based on the estimates of the 3D locations of the light source with respect to the device during the movement of the device.
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公开(公告)号：US12093763B2
公开(公告)日：2024-09-17
申请号：US18010578
申请日：2021-06-15
Applicant: APPLE INC.
Inventor： Arun Srivatsan Rangaprasad , Anselm Grundhoefer , Mohamed Selim Ben Himane , Dhruv A. Govil , Joseph M. Luxton , Jean-Charles Bernard Marcel Bazin , Shubham Agrawal
IPC: G06K19/06
CPC classification number: G06K19/06168
Abstract: Various implementations disclosed herein include devices, systems, and methods that provide a visual marker including a plurality of markings arranged in a corresponding plurality of shapes. In some implementations, each marking is formed of a set of sub-markings separated by gaps and arranged according to a respective shape, and the gaps of the plurality of markings are configured to encode data and indicate orientation of the visual marker. In some implementations, the plurality of markings are arranged in a plurality of concentric rings of increasing size. In some implementations, the orientation is encoded in a first set of gaps and data in a second set of gaps of the gaps in the plurality of markings.
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公开(公告)号：US11785176B1
公开(公告)日：2023-10-10
申请号：US17173525
申请日：2021-02-11
Applicant: Apple Inc.
Inventor： Arun Srivatsan Rangaprasad , Anselm Grundhoefer
CPC classification number: H04N5/58 , G01J1/4204 , H04N23/70
Abstract: Various implementations disclosed herein include devices, systems, and methods that estimate a location of a light source based on ambient light data. For example, an example process may include acquiring ambient light data from an ambient light sensor (ALS) during movement of a device in a physical environment, acquiring motion data from a motion sensor during the movement of the device, determining, based on the ambient light data and the motion data, estimates of three-dimensional (3D) locations of a light source with respect to the device during the movement of the device, and tracking a location of the device in a 3D coordinate system during the movement of the device based on the estimates of the 3D locations of the light source with respect to the device during the movement of the device.
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公开(公告)号：US11734527B1
公开(公告)日：2023-08-22
申请号：US17355658
申请日：2021-06-23
Applicant: Apple Inc.
CPC classification number: G06K7/10722 , G06K7/1417
Abstract: Various implementations disclosed herein include devices, systems, and methods that match image portions of a first set of image portions and image portions of another set of image portions. This may be performed in a such a way that the sum of descriptor distances of the matched image portions is optimized in a globally optimal way. In some implementations, the matching is subject to one or more constraints, e.g., ensuring that each image portion of the first data set is matched with at least one image portion of the second data set and ensuring that each image portion of the second data set is matched with only one image portion of the first data set.
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