Invention Grant
- Patent Title: Field variable tone mapping for 360 content
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Application No.: US17749689Application Date: 2022-05-20
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Publication No.: US11758280B2Publication Date: 2023-09-12
- Inventor: Guillaume Matthieu Guérin , Julien Caron
- Applicant: GoPro, Inc.
- Applicant Address: US CA San Mateo
- Assignee: GoPro, Inc.
- Current Assignee: GoPro, Inc.
- Current Assignee Address: US CA San Mateo
- Agency: Young Basile Hanlon & MacFarlane, P.C.
- Main IPC: H04N23/741
- IPC: H04N23/741 ; G06T5/20 ; G06T5/00 ; G06T3/40

Abstract:
Image capture devices and methods may use field variable tone mapping for 360 content. An image capture device may comprise an image sensor and a processor. The image sensor may capture a hyper-hemispherical image that includes an image circle portion. The processor may perform local tone mapping (LTM) on a first area of the image circle portion and perform global tone mapping (GTM) on a second area of pixels of the image circle portion. The GTM may be performed on a condition that a portion of a predefined area of pixels overlaps with a stitch line. The processor may be configured to stitch the hyper-hemispherical image and a second hyper-hemispherical image at the stitch line to obtain a processed image. The processor may be configured to display, store, output, or transmit the processed image.
Public/Granted literature
- US20220279109A1 FIELD VARIABLE TONE MAPPING FOR 360 CONTENT Public/Granted day:2022-09-01
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