Invention Grant
US06993200B2 System and method for effectively rendering high dynamic range images
失效
有效渲染高动态范围图像的系统和方法
- Patent Title: System and method for effectively rendering high dynamic range images
- Patent Title (中): 有效渲染高动态范围图像的系统和方法
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Application No.: US09989288Application Date: 2001-11-20
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Publication No.: US06993200B2Publication Date: 2006-01-31
- Inventor: Ingeborg Tastl , David Hasler
- Applicant: Ingeborg Tastl , David Hasler
- Applicant Address: JP Tokyo US NJ Park Ridge
- Assignee: Sony Corporation,Sony Electronics Inc.
- Current Assignee: Sony Corporation,Sony Electronics Inc.
- Current Assignee Address: JP Tokyo US NJ Park Ridge
- Agency: Redwood Patent Law
- Agent Gregory J. Koerner
- Main IPC: G06K9/36
- IPC: G06K9/36 ; G06K9/40 ; G06K9/00 ; H04N9/68

Abstract:
A system and method for rendering high dynamic range images includes a rendering manager that divides an original luminance image into a plurality of original subband images. The rendering manager converts the original subband images into original contrast images which are converted into original perceived contrast images. The rendering manager performs a compression procedure upon the original perceived contrast images to produce compressed perceived contrast images. The rendering manager converts the compressed perceived contrast images into compressed contrast images which are converted into compressed subband images. The rendering manager performs a subband combination procedure for combining the compressed subband images together with a lowest-frequency subband image to generate a rendered luminance image. The rendering manager may combines the rendered luminance image with corresponding chrominance information to generate a rendered composite image.
Public/Granted literature
- US20030103677A1 System and method for effectively rendering high dynamic range images Public/Granted day:2003-06-05
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