Invention Grant
US07643177B2 System with a random number generator used to remove contouring in CMOS imager data having an extended dynamic range
有权
具有随机数发生器的系统用于去除具有扩展动态范围的CMOS成像器数据中的轮廓
- Patent Title: System with a random number generator used to remove contouring in CMOS imager data having an extended dynamic range
- Patent Title (中): 具有随机数发生器的系统用于去除具有扩展动态范围的CMOS成像器数据中的轮廓
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Application No.: US12044053Application Date: 2008-03-07
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Publication No.: US07643177B2Publication Date: 2010-01-05
- Inventor: Bruce C. McDermott
- Applicant: Bruce C. McDermott
- Applicant Address: US NY Rochester
- Assignee: Eastman Kodak Company
- Current Assignee: Eastman Kodak Company
- Current Assignee Address: US NY Rochester
- Agent Nancy R. Simon
- Main IPC: H04N1/40
- IPC: H04N1/40
Abstract:
The present invention is a method of image data processing that includes determining whether the image data indicates photodiode saturation, and removing contouring from the image data caused by the saturation. The contour artifact removal is accomplished by adding a random number to adjusted photodiode data from an extended range imager when the data from the imager indicates that the photodiode has been saturated. The adjusted photodiode data is a sum of photodiode data and spillover rate adjusted diffusion data.
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