公开(公告)号：US12088922B2

公开(公告)日：2024-09-10

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: H04N23/73 ,  G06T5/92

CPC classification number: H04N23/73 ,  G06T5/92 ,  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：US20240073539A1

公开(公告)日：2024-02-29

申请号：US18446540

申请日：2023-08-09

Applicant: Arm Limited

Inventor： Dumidu Sanjaya Talagala ,  Alexis Leonardo Lluis Gomez ,  Matthew Adam Hellewell ,  Maxim Novikov

IPC: H04N23/73 ,  G06T5/00

CPC classification number: H04N23/73 ,  G06T5/009 ,  G06T2207/20172

Abstract: A method for adjusting an exposure level of an image sensor. The method comprises receiving intensity values of a current image captured by the image sensor, the image sensor having an initial exposure level when the current image is captured. The method comprises determining an intensity status based on comparing at least one characteristic of at least the current intensity values to one or more criteria. The method comprises selecting an exposure convergence mode, from a plurality of exposure convergence modes, based on the intensity status. The method comprises calculating, based on the current intensity values and the exposure convergence mode, a new exposure level for use by the image sensor in capturing a subsequent image.

公开(公告)号：US12014478B2

公开(公告)日：2024-06-18

申请号：US17155653

申请日：2021-01-22

Applicant: Apical Limited ,  Arm Limited

Inventor： Liam James O'Neil ,  Yanxiang Wang ,  Güney Kayim ,  Alexis Leonardo Lluis Gomez

IPC: G06T5/92 ,  G06N3/04 ,  G06T1/20 ,  G06T5/20

CPC classification number: G06T5/92 ,  G06N3/04 ,  G06T1/20 ,  G06T5/20

Abstract: A method, processor, and computer readable medium for generating blended intensity data for processing by a further processor, the method comprising the steps of generating a local contrast map based on image data, the local contrast map comprising a plurality of contrast values. An alpha mask is generated by associating an alpha mask value to each contrast value. First intensity data based on the image data using a first intensity calculation method and second intensity data based on the image data using a second intensity calculation method are also generated. The blended intensity data is generated by blending from at least one of the first intensity data and the second intensity data based on the alpha mask values; and outputted to the further processor.

公开(公告)号：US20240346288A1

公开(公告)日：2024-10-17

申请号：US18301921

申请日：2023-04-17

Applicant: Arm Limited

Inventor： Maxim Novikov ,  Puneet Singh Matharu ,  Tarush Bansal ,  Alexis Leonardo Lluis Gomez ,  David Hanwell

IPC: G06N3/045 ,  G06N3/082

CPC classification number: G06N3/045 ,  G06N3/082

Abstract: A first neural network generates a first output tensor based on an input tensor, the first output tensor comprising values to impart an effect to one or more features in the input tensor. A second neural network generates a second output tensor based on the input tensor, and the effect to be imparted to the one or more features is modulated, based at least in part, on the second output tensor.

公开(公告)号：US20240064415A1

公开(公告)日：2024-02-22

申请号：US18363234

申请日：2023-08-01

Applicant: Arm Limited

Inventor： Dumidu Sanjaya Talagala ,  Alexis Leonardo Lluis Gomez ,  Matthew Adam Hellewell ,  Maxim Novikov

IPC: H04N23/741 ,  H04N23/71 ,  H04N23/76

CPC classification number: H04N23/741 ,  H04N23/71 ,  H04N23/76 ,  G06T2207/10144 ,  G06T2207/20208

Abstract: A method for processing an image captured by an image sensor. The method comprises receiving first pre-tonemapped intensity values of a first image captured by the image sensor. The method comprises applying a first tonemapping function having a first tonemapping strength to the first pre-tonemapped intensity values to generate first tonemapped intensity values. The method comprises receiving second pre-tonemapped intensity values of a second image captured by the image sensor, the second image captured subsequent to the first image. The method comprises, based on a difference between the first tonemapped intensity values and a target for the first tonemapped intensity values, determining a second tonemapping function having a second tonemapping strength. The method comprises applying the second tonemapping function to the second pre-tonemapped intensity values to generate second tonemapped intensity values.