Spatial alignment of image data from a multichannel detector using a reference image
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United States of America Patent
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Aug 26, 2014
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app pub date -
May 5, 2011
filing date -
May 5, 2010
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Abstract
A method to perform spatial alignment and spectral compensation for a multi-channel flow imaging system that acquires image data from a single imaging region is disclosed in U.S. Pat. No. 7,079,708. The spatial corrections disclosed therein are static, and do not vary unless the alignment of optical components in the imaging system or the specific detector are modified. However, when image data is acquired from two different imaging regions that are spaced apart along an axis of motion between the object being imaged and the imaging system, dynamic spatial offsets are induced between image data acquired from a first imaging region and image data acquired from a second, spaced apart imaging region. The dynamic spatial offsets are a function of an error in an estimated velocity of the object as it moves between the imaging regions, and may vary from object to object. Techniques for correcting dynamic spatial offsets are disclosed.
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