Image analysis – Image compression or coding – Quantization
Reexamination Certificate
2005-05-24
2005-05-24
Johnson, Timothy M. (Department: 2625)
Image analysis
Image compression or coding
Quantization
C348S404100, C375S240030, C375S240200, C375S240220, C352S195000, C352S241000, C352S241000, C352S241000
Reexamination Certificate
active
06898326
ABSTRACT:
A transformation unit102transforms an entered image to multi-resolution space. A quantizer105performs vector quantization on a local pattern of an image of a multi-resolution representation. A perspective-order calculating unit107extracts a plurality of code words, positions corresponding thereto and/or angle of rotation and/or scale, and the perspective-order relationship of a plurality of these representative vectors, from the quantized image. An algebraic encoder108encodes the input image based upon the extracted information. As a result, there are provided an image processing apparatus and method for asymmetric encoding without motion in three dimensions and extraction of a three-dimensional structure. Further, a transformation unit1103transforms an entered image to vector field, and a singularity detector1104detects a singularity in the transformed image. A transformation encoder1105partitions the vector field into areas which include detected feature points, and each area is encoded by functional approximation. As a result, a finite number of feature points can be obtained with ease and an image processing apparatus and method exhibiting strong resistance to the effects of noise are provided.
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Desire Gregory
Johnson Timothy M.
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