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1.发明公开公开(公告)号：US20240004476A1
公开(公告)日：2024-01-04
申请号：US17809772
申请日：2022-06-29
Applicant: GOOGLE LLC
Inventor： Dongeek Shin , Andrea Colaco , Stiven Guillaume Francois Morvan , Adam James Banfield , Shahram Izadi
CPC classification number: G06F3/017 , G06V40/28 , G06V40/15 , G06V40/1318 , G06V20/20 , G06V10/82 , G06F1/163
Abstract: Techniques of operating an AR system include determining hand gestures formed by a user based on a sequence of two-dimensional images through skin of the user's wrist acquired from a near-infrared camera. Specifically, an image capture device disposed on a band worn around a user's wrist includes a source of electromagnetic radiation, e.g., light-emitting diodes in the infrared (IR) wavelength band that emit the radiation into the user's wrist and an IR detector which produces the sequence of two-dimensional images of a region within a dermal layer in the user's wrist. From this sequence, gesture detection circuitry determines values of a biological flow metric, e.g., a change in perfusion index (PI) between frames of the sequence, based on a trained model that generates the metric from the sequence. Finally, the gesture detection circuitry maps the values of the biological flow metric to specific hand/finger movements that determine a gesture.
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公开(公告)号：US20230364525A1
公开(公告)日：2023-11-16
申请号：US18029544
申请日：2020-09-30
Applicant: Google LLC
Inventor： Alejandro Kauffmann , Adam James Banfield
CPC classification number: A63H33/36 , A63J21/00 , H02N15/00 , H02J50/005 , H02J50/10
Abstract: Systems and devices for levitating interactive objects are provided. A toy formed proximate the opening, electrical circuitry configured to cause an electrical current to flow in the solenoid coil, wireless communication circuitry; and a controller coupled to the wireless communication circuitry and the electrical circuitry and configured to control the timing and amount of electrical current flowing through the solenoid coil to cause levitation or levitation-like movement of the toy wand within said opening by virtue of electromagnetic interaction with the magnetically-reactive element of the shaft portion.
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3.发明公开公开(公告)号：US20240338084A1
公开(公告)日：2024-10-10
申请号：US18440605
申请日：2024-02-13
Applicant: GOOGLE LLC
Inventor： Dongeek Shin , Andrea Colaco , Stiven Guillaume Francois Morvan , Adam James Banfield , Shahram Izadi
CPC classification number: G06F3/017 , G06F1/163 , G06V10/82 , G06V20/20 , G06V40/1318 , G06V40/15 , G06V40/28
Abstract: Techniques of operating an AR system include determining hand gestures formed by a user based on a sequence of two-dimensional images through skin of the user's wrist acquired from a near-infrared camera. Specifically, an image capture device disposed on a band worn around a user's wrist includes a source of electromagnetic radiation, e.g., light-emitting diodes in the infrared (IR) wavelength band that emit the radiation into the user's wrist and an IR detector which produces the sequence of two-dimensional images of a region within a dermal layer in the user's wrist. From this sequence, gesture detection circuitry determines values of a biological flow metric, e.g., a change in perfusion index (PI) between frames of the sequence, based on a trained model that generates the metric from the sequence. Finally, the gesture detection circuitry maps the values of the biological flow metric to specific hand/finger movements that determine a gesture.
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4.发明授权公开(公告)号：US11934586B2
公开(公告)日：2024-03-19
申请号：US17809772
申请日：2022-06-29
Applicant: GOOGLE LLC
Inventor： Dongeek Shin , Andrea Colaco , Stiven Guillaume Francois Morvan , Adam James Banfield , Shahram Izadi
CPC classification number: G06F3/017 , G06F1/163 , G06V10/82 , G06V20/20 , G06V40/1318 , G06V40/15 , G06V40/28
Abstract: Techniques of operating an AR system include determining hand gestures formed by a user based on a sequence of two-dimensional images through skin of the user's wrist acquired from a near-infrared camera. Specifically, an image capture device disposed on a band worn around a user's wrist includes a source of electromagnetic radiation, e.g., light-emitting diodes in the infrared (IR) wavelength band that emit the radiation into the user's wrist and an IR detector which produces the sequence of two-dimensional images of a region within a dermal layer in the user's wrist. From this sequence, gesture detection circuitry determines values of a biological flow metric, e.g., a change in perfusion index (PI) between frames of the sequence, based on a trained model that generates the metric from the sequence. Finally, the gesture detection circuitry maps the values of the biological flow metric to specific hand/finger movements that determine a gesture.
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