Image analysis – Image transformation or preprocessing – Changing the image coordinates
Reexamination Certificate
2011-06-14
2011-06-14
Ahmed, Samir A (Department: 2624)
Image analysis
Image transformation or preprocessing
Changing the image coordinates
C382S296000
Reexamination Certificate
active
07961984
ABSTRACT:
An image processing apparatus includes an image acquisition section, a combination detection section and an angle detection section. The image acquisition section acquires a code pattern image from a surface of a recording medium on which the code pattern is formed. In the code pattern, N unit images are selectively placed in M reference positions that are arranged at predetermined intervals in two directions orthogonal to each other where M≧4 and 2≦N<M. The combination detection section detects pairs of the unit images based on the predetermined intervals and respective positions of the unit images contained in the code pattern image acquired. The angle detection section detects a rotation angle of the code pattern image with respect to a predetermined reference axis based on an inclination of a line, with respect to the predetermined reference axis, connecting the unit images of each pair detected.
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Onishi Takeshi
Sonoda Takashi
Ahmed Samir A
Fuji 'Xerox Co., Ltd.
Morgan & Lewis & Bockius, LLP
Patel Jayesh
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