公开(公告)号：US20250159370A1

公开(公告)日：2025-05-15

申请号：US18938184

申请日：2024-11-05

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Tiejun Dai ,  Bo Mu ,  Menghan Guo ,  Wenlei Yang ,  Qinyi Wang ,  Andreas Suess

IPC: H04N25/47 ,  H04N25/531 ,  H04N25/616 ,  H04N25/767 ,  H04N25/79

Abstract: Hybrid image sensors with on-chip image deblur and rolling shutter distortion correction (and associated systems, devices, and methods) are disclosed herein. In one embodiment, an image sensor includes (a) an event driven sensing array including one or more event vision sensor (EVS) pixels, each configured to capture event data corresponding to contrast information of light incident on the EVS pixel; (b) a pixel array including a plurality of CMOS image sensor (CIS) pixels arranged in one or more CIS pixel rows, each CIS pixel configured to capture CIS data corresponding to intensity of light incident on the CIS pixel, and (c) a rolling shutter distortion correction circuit configured to correct the CIS data for rolling shutter distortion using the event data.

公开(公告)号：US20240298088A1

公开(公告)日：2024-09-05

申请号：US18177668

申请日：2023-03-02

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Wenlei Yang ,  Shoushun Chen ,  Andreas Suess

IPC: H04N23/60 ,  H04N25/707 ,  H04N25/772

CPC classification number: H04N23/665 ,  H04N25/707 ,  H04N25/772

Abstract: Methods for transmitting asynchronous event data via synchronous communications interfaces (and associated imaging systems) are disclosed herein. In one embodiment, an imager comprises an array of event vision pixels, a synchronous communications transmitter configured to transmit frames of data to a synchronous communications receiver, and a timer configured to indicate when a threshold amount of time has elapsed. The pixels can generate event data based on activity within an external scene. The imager can be configured to insert available event data into a payload of the current frame during a first time period before the frame timer indicates that the threshold amount of time has elapsed, pad the payload with dummy data during a second time period after the frame timer indicates that the threshold amount of time has elapsed, and transmit (using the synchronous communications transmitter) the current frame of data to the synchronous communications receiver.

公开(公告)号：US20250159375A1

公开(公告)日：2025-05-15

申请号：US18937933

申请日：2024-11-05

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Tiejun Dai ,  Bo Mu ,  Menghan Guo ,  Wenlei Yang ,  Qinyi Wang ,  Andreas Suess

IPC: H04N25/707 ,  H04N23/45 ,  H04N25/47 ,  H04N25/531 ,  H04N25/62 ,  H04N25/76

Abstract: Hybrid image sensors with adjustable contrast thresholds (and associated systems, devices, and methods) are disclosed herein. In one embodiment, an imaging system comprises one or more event vision sensor (EVS) pixels, and a plurality of CMOS image sensor (CIS) pixels. Each EVS pixel can be configured to, based on a contrast threshold, capture event data corresponding to contrast information of light incident on the EVS pixel. Each CIS pixel can be configured to capture CIS data corresponding to intensity of light incident on the CIS pixel. The imaging system can further comprise (i) a contrast threshold calibration circuit configured to adjust a value of the contrast threshold over time, and (ii) a deblur circuit configured to generate deblurred image data by deblurring the CIS data captured by the plurality of CIS pixels using at least a portion of the event data captured by the one or more EVS pixels.

公开(公告)号：US20250159367A1

公开(公告)日：2025-05-15

申请号：US18938125

申请日：2024-11-05

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Tiejun Dai ,  Bo Mu ,  Menghan Guo ,  Wenlei Yang ,  Qinyi Wang ,  Andreas Suess

IPC: H04N25/42 ,  H04N25/46 ,  H04N25/47 ,  H04N25/707 ,  H04N25/78

Abstract: Methods for operating hybrid image sensors having different CIS-to-EVS resolutions (and associated systems, devices, and methods) are disclosed herein. In one embodiment, an imaging system includes a hybrid image sensor including (a) an event driven sensing array including one or more event vision sensor (EVS) pixels arranged in one or more EVS pixel rows and configured to capture EVS data having an EVS resolution, and (b) a pixel array including a plurality of CMOS image sensor (CIS) pixels arranged in one or more CIS pixel rows and configured to capture CIS data having a CIS resolution. The imaging system can further include control circuitry configured to adjust the CIS resolution of the CIS data and/or the EVS resolution of the EVS data such that a mismatch between the CIS resolution and the EVS resolution is reduced.

公开(公告)号：US20250159376A1

公开(公告)日：2025-05-15

申请号：US18938080

申请日：2024-11-05

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Tiejun Dai ,  Bo Mu ,  Menghan Guo ,  Wenlei Yang ,  Qinyi Wang ,  Andreas Suess ,  Luis Eduardo Garcia Capel

IPC: H04N25/707 ,  H04N23/68 ,  H04N23/84 ,  H04N25/531 ,  H04N25/766 ,  H04N25/79

Abstract: Hybrid image sensors with video frame interpolation (and associated systems, devices, and methods) are disclosed herein. In one embodiment, an imaging system comprises one or more event vision sensor (EVS) pixels, and a plurality of CMOS image sensor (CIS) pixels. Each EVS pixel can be configured to capture event data corresponding to contrast information of light incident on the EVS pixel. Each CIS pixel can be configured to capture CIS data corresponding to intensity of light incident on the CIS pixel. The imaging system can further comprise a deblur circuit configured to deblur the CIS data captured by the plurality of CIS pixels using a first portion of the event data captured by the one or more EVS pixels, and a system processor configured to interpolate a video frame using the deblurred CIS data and all or a subset of the event data.

公开(公告)号：US20250159371A1

公开(公告)日：2025-05-15

申请号：US18938208

申请日：2024-11-05

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Tiejun Dai ,  Bo Mu ,  Menghan Guo ,  Wenlei Yang ,  Qinyi Wang ,  Luis Eduardo Garcia Capel ,  Rui Jiang ,  Andreas Suess

IPC: H04N25/47 ,  H04N23/81 ,  H04N25/53 ,  H04N25/707 ,  H04N25/78

Abstract: Hybrid image sensors with on-chip image deblur (and associated systems, devices, and methods) are disclosed herein. In one embodiment, an image sensor includes (a) a plurality of CMOS image sensor (CIS) pixels configured to capture CIS data corresponding intensity of light incident on CIS pixels of the plurality of CIS pixels, (b) an event vision sensor (EVS) pixel configured to capture EVS data corresponding to events detected in light incident on the EVS pixel, and (c) a deblur circuit configured to generate deblurred image data based on the CIS data and an accumulation of events in the EVS data. The deblur circuit can be configured to compute the accumulation of events, such as using an event-based double integral model.

公开(公告)号：US12184973B2

公开(公告)日：2024-12-31

申请号：US18177668

申请日：2023-03-02

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Wenlei Yang ,  Shoushun Chen ,  Andreas Suess

IPC: H04N23/60 ,  H04N25/707 ,  H04N25/772

Abstract: Methods for transmitting asynchronous event data via synchronous communications interfaces (and associated imaging systems) are disclosed herein. In one embodiment, an imager comprises an array of event vision pixels, a synchronous communications transmitter configured to transmit frames of data to a synchronous communications receiver, and a timer configured to indicate when a threshold amount of time has elapsed. The pixels can generate event data based on activity within an external scene. The imager can be configured to insert available event data into a payload of the current frame during a first time period before the frame timer indicates that the threshold amount of time has elapsed, pad the payload with dummy data during a second time period after the frame timer indicates that the threshold amount of time has elapsed, and transmit (using the synchronous communications transmitter) the current frame of data to the synchronous communications receiver.