06909459 is referenced by 17 patents and cites 25 patents.

The invention is a method and apparatus to extend the signal range of a digital image beyond the nominal sensor or data format range. The method and apparatus automatically acquires a scaled series of source data, applies noise reduction to the source data, and constructs a scaled composite with usable signal ranges greater than that of the individual data sources. Applied to digital images, the invention permits presentation and analysis of all signals from a subject in a single composite or an image resulting from the method and apparatus of the present invention. The present invention overcomes two defects in prior art systems: increased noise in the resultant composite image arising from rescaling of component images and dependence on evaluating image content to determine image scaling. Because this invention can be automated, it can be applied in numerous fields requiring high throughput.

Title
Method of and apparatus for extending signal ranges of digital images
Application Number
10/465013
Publication Number
6909459 (B2)
Application Date
June 18, 2003
Publication Date
June 21, 2005
Inventor
John J Kang
Alameda
CA, US
Robert M Watson Jr
San Leandro
CA, US
Agent
Haverstock & Owens
Assignee
Alpha Innotech Corporation
CA, US
IPC
G06T 001/00
G02B 027/10
H04N 003/14
H04N 005/235
H04N 005/243
H04N 005/335
H04N 005/52
H01L 027/148
H04N 003/15
H04N 003/15
H04N 005/235
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