Image analysis – Image enhancement or restoration – Variable threshold – gain – or slice level
Patent
1997-12-16
1999-11-09
Couso, Jose L.
Image analysis
Image enhancement or restoration
Variable threshold, gain, or slice level
382168, 382172, 382169, G06K 938
Patent
active
059829443
ABSTRACT:
Image analysis methods and systems are used for identifying objects in a background by defining a data space, such as a histogram or a color space. The data space comprises a plurality of sub-spaces, which could be selected based, for example, on a histogram, or on the way pixel values or color parameters cluster in their respective spaces. The threshold values in the data space are selected, a list of all ordered pairs of thresholds is generated to define multiple data sub-spaces, and the image is multiply searched, once in each sub-space for at least one representation of a candidate object, where the candidate object has at least one predetermined attribute value. Valid objects are identified by comparing the candidate object attribute values to a defined set of valid object attribute values contained in a driver.
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Vaidyanathan Akhileswar Ganesh
Whitcomb James Arthur
Couso Jose L.
Do Anh Hong
E. I. Du Pont de Nemours and Company
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