公开(公告)号：US11196918B2

公开(公告)日：2021-12-07

申请号：US16303892

申请日：2017-05-24

Applicant: GoPro, Inc.

Inventor： Bruno César Douady ,  Michael Serge Andre Kraak ,  Guillaume Matthieu Guèrin ,  Thomas Nicolas Emmanuel Veit

IPC: H04N5/232 ,  H04N5/247 ,  H04N17/00 ,  G06T7/80 ,  G06T3/40 ,  H04N19/10 ,  H04N19/136 ,  H04N19/176 ,  H04N19/423 ,  H04N19/70 ,  H04N19/90 ,  H04N13/271 ,  G06T5/20 ,  G06T5/50 ,  H04N5/357 ,  H04N19/85 ,  G06T3/00 ,  H04N5/225 ,  H04N13/239 ,  H04N13/122 ,  G06T5/00

Abstract: Systems and methods are disclosed for image signal processing. For example, systems may include an image sensor and a processing apparatus. The image sensor captures image data using a plurality of selectable exposure times. The processing apparatus receives a first image from the image sensor captured with a first exposure time and receives a second image from the image sensor captured with a second exposure time that is less than the first exposure time. A high dynamic range image is determined based on the first image and the second image, wherein an image portion of the high dynamic range image is based on a corresponding image portion of the second image when a pixel of a corresponding image portion of the first image is saturated. An output image that is based on the high dynamic range image is stored, displayed, or transmitted.

公开(公告)号：US20230164448A1

公开(公告)日：2023-05-25

申请号：US18151745

申请日：2023-01-09

Applicant: GoPro, Inc.

Inventor： Bruno César Douady ,  Guillaume Matthieu Guèrin

IPC: H04N23/741 ,  H04N23/45 ,  H04N23/72

CPC classification number: H04N23/741 ,  H04N23/45 ,  H04N23/72

Abstract: Image signal processing includes obtaining two or more image signals from a first image sensor, where each of the two or more image signals has a different exposure and obtaining two or more image signals from a second image sensor, where each of the two or more image signals has a different exposure. Image signal processing includes generating an exposure compensated image based on a gain value applied to an exposure level of a first image and a gain value applied to an exposure level of a second image. Image signal processing further includes processing a transformed base layer of the exposure compensated image to obtain a high dynamic range (HDR) image.