Invention Application
- Patent Title: SPHERICAL LIGHTING DEVICE WITH BACKLIGHTING CORONAL RING
- Patent Title (中): 带背光标准环的球形照明装置
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Application No.: US14088615Application Date: 2013-11-25
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Publication No.: US20150146970A1Publication Date: 2015-05-28
- Inventor: John F. Kelley , Douglas E. Lhotka , Kristin S. Moore , Todd P. Seager
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Main IPC: G06T7/00
- IPC: G06T7/00 ; G06T7/40

Abstract:
A method for capturing three-dimensional photographic lighting of a spherical lighting device is described. Calculation of boundaries of the spherical lighting device based on lighting properties of at least one light source in a set location of the spherical lighting device is performed. A mapping of multitude points of the spherical lighting device to three-dimensional vectors of at least one camera device using a logical grid is performed. A measurement of brightness of the logical grid of the spherical lighting device is performed. The method further comprises determining brightest grid point of the logical grid of the spherical lighting device, wherein the brightest grid point of the logical grid is measured within a region brightness of the spherical lighting device. The method further comprises calculating the region of brightness of the spherical lighting device based on the determined brightest grid point of the logical grid.
Public/Granted literature
- US09218667B2 Spherical lighting device with backlighting coronal ring Public/Granted day:2015-12-22
Information query