Optimal tradeoff circular harmonic function correlation filtermethods providing controlled in-plane rotation response
Vijaya Kumar, B.V.K.; Mahalanobis, A.; Takessian, A.
Image Processing, IEEE Transactions on
Volume 9, Issue 6, Jun 2000 Page(s):1025 - 1034
Digital Object Identifier 10.1109/83.846245
Summary:Correlation methods are becoming increasingly attractive tools for
image recognition and location. This renewed interest in correlation
methods is spurred by the availability of high-speed image processors
and the emergence of correlation filter designs that can optimize
relevant figures of merit. In this paper, a new correlation filter
design method is presented that allows one to optimally tradeoff among
potentially conflicting correlation output performance criteria while
achieving desired correlation peak value behavior in response to
in-plane rotation of input images. Such controlled in-plane rotation
response is useful in image analysis and pattern recognition
applications where the sensor follows a pre-arranged trajectory while
imaging an object. Since this new correlation filter design is based on
circular harmonic function (CHF) theory, we refer to the resulting
filters as optimal tradeoff circular harmonic function (OTCHF) filters.
Underlying theory, OTCHF filter design method, and illustrative
numerical results are presented
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