公开(公告)号：US11532143B2

公开(公告)日：2022-12-20

申请号：US16843231

申请日：2020-04-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jongseok Seo ,  Hyunku Lee ,  Heejae Jung

IPC: G06V10/22 ,  G06T5/00 ,  G06K9/62 ,  G06T7/70 ,  H04N5/232 ,  G06T7/20 ,  G06V10/25 ,  G06V10/147

Abstract: A vision sensor includes a pixel array comprising pixels arranged in a matrix, an event detection circuit, an event rate controller, and an interface circuit. Each pixel is configured to generate an electrical signal in response to detecting a change in incident light intensity. The event detection circuit detects whether a change in incident light intensity has occurred at any pixels, based on processing electrical signals received from one or more pixels, and generates one or more event signals corresponding to one or more pixels at which a change in intensity of incident light is determined to have occurred. The event rate controller selects a selection of one or more event signals corresponding to a region of interest on the pixel array as one or more output event signals. The interface circuit communicates with an external processor to transmit the one or more output event signals to the external processor.

公开(公告)号：US12236653B2

公开(公告)日：2025-02-25

申请号：US18653271

申请日：2024-05-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jongseok Seo ,  Hyunku Lee ,  Heejae Jung

IPC: G06V10/147 ,  G06F18/243 ,  G06T5/70 ,  G06T7/20 ,  G06T7/70 ,  G06V10/22 ,  G06V10/25 ,  H04N23/667 ,  H04N23/80

Abstract: A vision sensor includes a pixel array comprising pixels arranged in a matrix, an event detection circuit, an event rate controller, and an interface circuit. Each pixel is configured to generate an electrical signal in response to detecting a change in incident light intensity. The event detection circuit detects whether a change in incident light intensity has occurred at any pixels, based on processing electrical signals received from one or more pixels, and generates one or more event signals corresponding to one or more pixels at which a change in intensity of incident light is determined to have occurred. The event rate controller selects a selection of one or more event signals corresponding to a region of interest on the pixel array as one or more output event signals. The interface circuit communicates with an external processor to transmit the one or more output event signals to the external processor.

公开(公告)号：US11727662B2

公开(公告)日：2023-08-15

申请号：US18059469

申请日：2022-11-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jongseok Seo ,  Hyunku Lee ,  Heejae Jung

IPC: G06V10/147 ,  G06T5/00 ,  G06T7/70 ,  G06T7/20 ,  G06V10/22 ,  G06V10/25 ,  G06F18/243 ,  H04N23/80 ,  H04N23/667

CPC classification number: G06V10/147 ,  G06F18/243 ,  G06T5/002 ,  G06T7/20 ,  G06T7/70 ,  G06V10/22 ,  G06V10/25 ,  H04N23/667 ,  H04N23/80

Abstract: A vision sensor includes a pixel array comprising pixels arranged in a matrix, an event detection circuit, an event rate controller, and an interface circuit. Each pixel is configured to generate an electrical signal in response to detecting a change in incident light intensity. The event detection circuit detects whether a change in incident light intensity has occurred at any pixels, based on processing electrical signals received from one or more pixels, and generates one or more event signals corresponding to one or more pixels at which a change in intensity of incident light is determined to have occurred. The event rate controller selects a selection of one or more event signals corresponding to a region of interest on the pixel array as one or more output event signals. The interface circuit communicates with an external processor to transmit the one or more output event signals to the external processor.

公开(公告)号：US10346506B2

公开(公告)日：2019-07-09

申请号：US15667214

申请日：2017-08-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-Man Park ,  Eric Hyunsurk Ryu ,  Keun Joo Park ,  Hyunku Lee

IPC: G06F3/01 ,  G06K9/20 ,  G06K9/52 ,  G06F17/18 ,  G06T7/269 ,  G08B13/14 ,  G06F17/14 ,  G06F3/0484 ,  G06K9/00

Abstract: Provided is an event signal processing method and apparatus. The event signal processing method includes acquiring, from an event based sensor, coordinates of an active pixel corresponding to an event and a timestamp corresponding to the event; mapping the event to a target voxel included in a three-dimensional (3D) grid based on the coordinates of the active pixel and the timestamp; and updating a value of the target voxel based on the event.

公开(公告)号：US12002247B2

公开(公告)日：2024-06-04

申请号：US18341968

申请日：2023-06-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jongseok Seo ,  Hyunku Lee ,  Heejae Jung

IPC: G06V10/147 ,  G06F18/243 ,  G06T5/70 ,  G06T7/20 ,  G06T7/70 ,  G06V10/22 ,  G06V10/25 ,  H04N23/667 ,  H04N23/80

CPC classification number: G06V10/147 ,  G06F18/243 ,  G06T5/70 ,  G06T7/20 ,  G06T7/70 ,  G06V10/22 ,  G06V10/25 ,  H04N23/667 ,  H04N23/80

Abstract: A vision sensor includes a pixel array comprising pixels arranged in a matrix, an event detection circuit, an event rate controller, and an interface circuit. Each pixel is configured to generate an electrical signal in response to detecting a change in incident light intensity. The event detection circuit detects whether a change in incident light intensity has occurred at any pixels, based on processing electrical signals received from one or more pixels, and generates one or more event signals corresponding to one or more pixels at which a change in intensity of incident light is determined to have occurred. The event rate controller selects a selection of one or more event signals corresponding to a region of interest on the pixel array as one or more output event signals. The interface circuit communicates with an external processor to transmit the one or more output event signals to the external processor.

公开(公告)号：US11575849B2

公开(公告)日：2023-02-07

申请号：US16689579

申请日：2019-11-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Keun Joo Park ,  Junseok Kim ,  Yohan Roh ,  Hyunsurk Ryu ,  Jooyeon Woo ,  Hyunku Lee

IPC: H04N5/3745 ,  H04N5/341 ,  H05B39/04 ,  G06F16/23 ,  G06F16/583 ,  H04N5/367 ,  H04N5/369 ,  H05B47/11 ,  H05B47/16 ,  H05B47/155

Abstract: An image processing device includes a vision sensor and a processor. The vision sensor generates a plurality of events in which an intensity of light changes and generates a plurality of timestamps depending on times when the events occur. In addition, the processor may regenerate a timestamp of a pixel where an abnormal event occurs, based on temporal correlation of the events.

公开(公告)号：US20220172375A1

公开(公告)日：2022-06-02

申请号：US17515755

申请日：2021-11-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jongseok SEO ,  Junhyuk Park ,  Hyunku Lee

IPC: G06T7/215 ,  H04N5/3745 ,  H04N5/345

Abstract: Provided is a vision sensor including a pixel array including a plurality of pixels disposed in a matrix form, an event detection circuit configured to detect whether an event has occurred in the plurality of pixels and generate event signals corresponding to pixels from among the plurality of pixels in which an event has occurred, a map data processor configured to generate a timestamp map based on the event signals, and an interface circuit configured to transmit vision sensor data including at least one of the event signals and the timestamp map to an external processor, wherein the timestamp map includes timestamp information indicating polarity information, address information, and an event occurrence time of a pixel included in an event signal corresponding to the pixel.

公开(公告)号：US12058454B2

公开(公告)日：2024-08-06

申请号：US18120251

申请日：2023-03-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jongseok Seo ,  Junhyuk Park ,  Hyunku Lee

IPC: H04N25/47 ,  G06T7/215 ,  H04N23/80 ,  H04N25/443 ,  H04N25/46

CPC classification number: H04N25/47 ,  G06T7/215 ,  H04N23/80 ,  H04N25/443 ,  H04N25/46 ,  G06T2207/20112

Abstract: Provided is a vision sensor including a pixel array including a plurality of pixels disposed in a matrix form, an event detection circuit configured to detect whether an event has occurred in the plurality of pixels and generate event signals corresponding to pixels from among the plurality of pixels in which an event has occurred, a map data processor configured to generate a timestamp map based on the event signals, and an interface circuit configured to transmit vision sensor data including at least one of the event signals and the timestamp map to an external processor, wherein the timestamp map includes timestamp information indicating polarity information, address information, and an event occurrence time of a pixel included in an event signal corresponding to the pixel.

公开(公告)号：US11501536B2

公开(公告)日：2022-11-15

申请号：US16776660

申请日：2020-01-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Weiheng Liu ,  Yinlong Qian ,  Hyunku Lee ,  Qiang Wang ,  Keunjoo Paul Park ,  Hyunsurk Eric Ryu

IPC: G06K9/00 ,  G06V20/52 ,  G06K9/62 ,  H04N5/232 ,  G06V30/194

Abstract: An image processing method including: capturing changes in a monitored scene; and performing a sparse feature calculation on the changes in the monitored scene to obtain a sparse feature map.

公开(公告)号：US11202025B2

公开(公告)日：2021-12-14

申请号：US16689535

申请日：2019-11-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Keun Joo Park ,  Junseok Kim ,  Yohan Roh ,  Hyunsurk Ryu ,  Jooyeon Woo ,  Hyunku Lee

IPC: H04N5/3745 ,  H04N5/341 ,  H05B39/04 ,  G06F16/23 ,  G06F16/583 ,  H04N5/367 ,  H04N5/369 ,  H05B47/11 ,  H05B47/16 ,  H05B47/155

Abstract: An image processing device includes a vision sensor and a processor. The vision sensor generates a plurality of events in which an intensity of light changes and generates a plurality of timestamps depending on times when the events occur. In addition, the processor may regenerate a timestamp of a pixel where an abnormal event occurs, based on temporal correlation of the events.