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    Event-based vision sensor
    21.
    发明授权
    Event-based vision sensor 有权

    公开(公告)号：US11363218B2

    公开(公告)日：2022-06-14

    申请号：US17125587

    申请日：2020-12-17

    Applicant: Sony Advanced Visual Sensing AG

    Inventor： Raphael Berner

    IPC: H04N5/351 ,  H04N5/3745 ,  H04N5/345 ,  H04N5/378

    Abstract: According to the present invention there is provided a vision sensor comprising, an array of pixels (101) comprising rows and columns of pixels, wherein each pixel has an address assigned thereto which represents the position of the pixel in the array, wherein each pixel in the array of pixels comprises a photodiode (103) which can receive light, and which can output current having an amplitude proportional to the intensity of the received light; a photoreceptor circuit (104) which is electronically connected to the photodiode, and which is configured to convert current which it receives from the photodiode into a voltage; a first storage capacitor (105), and at least a first switch which (106) is positioned between the first storage capacitor and an output of the photoreceptor circuit, wherein the first switch can be selectively closed to electronically connect the output of the photoreceptor circuit to the first storage capacitor, or selectively opened to electronically disconnect the output of the photoreceptor circuit from the first storage capacitor; and a circuit (102, 201) which is configured so that it can he selectively electronically connected to a pixel in the array, and to determine if the difference between the voltage output from the photoreceptor circuit and the voltage across the first storage capacitor is greater than a predefined threshold voltage, and to output the address of the pixel to a receiver only if the difference between the voltage output from the photoreceptor circuit and the voltage across the first storage capacitor is greater than a predefined threshold voltage. There is further provided a corresponding method of vision sensing using the vision sensor.

    EVENT-BASED VISION SENSOR
    23.
    发明申请
    EVENT-BASED VISION SENSOR 有权

    公开(公告)号：US20210144317A1

    公开(公告)日：2021-05-13

    申请号：US17125587

    申请日：2020-12-17

    Applicant: Sony Advanced Visual Sensing AG

    Inventor： Raphael Berner

    IPC: H04N5/351 ,  H04N5/3745 ,  H04N5/345 ,  H04N5/378

    Abstract: According to the present invention there is provided a vision sensor comprising, an array of pixels (101) comprising rows and columns of pixels, wherein each pixel has an address assigned thereto which represents the position of the pixel in the array, wherein each pixel in the array of pixels comprises a photodiode (103) which can receive light, and which can output current having an amplitude proportional to the intensity of the received light; a photoreceptor circuit (104) which is electronically connected to the photodiode, and which is configured to convert current which it receives from the photodiode into a voltage; a first storage capacitor (105), and at least a first switch which (106) is positioned between the first storage capacitor and an output of the photoreceptor circuit, wherein the first switch can he selectively closed to electronically connect the output of the photoreceptor circuit to the first storage capacitor, or selectively opened to electronically disconnect the output of the photoreceptor circuit from the first storage capacitor; and a circuit (102, 201) which is configured so that it can he selectively electronically connected to a pixel in the array, and to determine if the difference between the voltage output from the photoreceptor circuit and the voltage across the first storage capacitor is greater than a predefined threshold voltage, and to output the address of the pixel to a receiver only if the difference between the voltage output from the photoreceptor circuit and the voltage across the first storage capacitor is greater than a predefined threshold voltage. There is further provided a corresponding method of vision sensing using the vision sensor.

    Transparent Smartphone
    30.
    发明公开
    Transparent Smartphone 审中-公开

    公开(公告)号：US20230185372A1

    公开(公告)日：2023-06-15

    申请号：US18080148

    申请日：2022-12-13

    Applicant: Sony Advanced Visual Sensing AG

    Inventor： Christian Brandli ,  Raphael Berner ,  Michael Gassner

    IPC: G06F3/01 ,  G06V20/20 ,  G06T15/20 ,  G06T19/00

    CPC classification number: G06F3/013 ,  G06V20/20 ,  G06T15/205 ,  G06T19/006 ,  G06T2215/16

    Abstract: A method and system for rendering an augmented reality scene on a mobile computing device tracks a real-world scene and/or a viewpoint of a user with one or more event-based vision sensors and blends an augmented reality scene displayed on the mobile computing device based on the viewpoint of the user and a scene map of the real-world scene and on the tracking of the one or more event-based vision sensors. Event-based vision sensors offer many advantages, mainly by intrinsically compressing the data stream and thus reducing the amount of data that a processing unit needs to perform. Furthermore, the event-based vision sensor pixels continuously sense the visual changes in the scene and report them with a very low latency. This makes the event-based vision sensor an ideal sensor for always-on tasks such as visual tracking and smart sensor control or data enhancement of secondary sensing modalities.

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