公开(公告)号：US20240064411A1

公开(公告)日：2024-02-22

申请号：US17820055

申请日：2022-08-16

Applicant: Arm Limited

Inventor： Dumidu Sanjaya TALAGALA ,  Alexis Leonardo LLUIS GOMEZ ,  Matthew Adam HELLEWELL ,  Maxim NOVIKOV

IPC: H04N5/235 ,  G06T5/00

CPC classification number: H04N5/2353 ,  G06T5/009 ,  G06T2207/20172

Abstract: A method for processing an image. The method comprises receiving intensity values for each of a plurality of images captured by an image sensor during a detection window. The method comprises identifying, using the intensity values, one or more transitions occurring during the detection window, the one or more transitions each comprising a transition between an image in which a maximum clipping criterion is not satisfied and an image in which the maximum clipping criterion is satisfied. The method comprises, based on the identified transitions, at least one of: adjusting an exposure level of the image sensor; and determining a tonemapping function having a tonemapping strength, and applying the tonemapping function to the intensity values of a current image to generate tonemapped intensity values, wherein the image sensor has a current exposure level when the current image is captured.

公开(公告)号：US20240406571A1

公开(公告)日：2024-12-05

申请号：US18803087

申请日：2024-08-13

Applicant: Arm Limited

Inventor： Dumidu Sanjaya TALAGALA ,  Alexis Leonardo LLUIS GOMEZ ,  Matthew Adam HELLEWELL ,  Maxim NOVIKOV

IPC: H04N23/73 ,  G06T5/92

Abstract: A method for processing an image. The method comprises receiving intensity values of pixels for each of a plurality of images captured by an image sensor during a detection window. The method comprises identifying, using the intensity values, a plurality of transitions occurring at different times during the detection window, each transition of the plurality of transitions being identified on the basis of detecting intensity values of pixels that have been clipped in images between which such transitions may occur. The method comprises, based on identifying the plurality of transitions occurring during the detection window, at least one of: adjusting an exposure level of the image sensor; and determining a tonemapping function having a tonemapping strength, and applying the tonemapping function to the intensity values of a current image to generate tonemapped intensity values, wherein the image sensor has a current exposure level when the current image is captured.