Methods and apparatus for converting the resolution of...

Image analysis – Image transformation or preprocessing – Changing the image coordinates

Reexamination Certificate

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C382S300000

Reexamination Certificate

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10650279

ABSTRACT:
Methods and apparatus are provided for converting binary image data at a first resolution to binary image data at a second resolution, the methods including detecting the edges of the binary image data, sampling a corresponding point on or substantially near each of the edges, fitting a curve between the sampled points, and re-sampling the curve at the second resolution.

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patent: 6757431 (2004-06-01), Loce et al.
patent: 2003/0007702 (2003-01-01), Aoyama et al.
A. Imiya et al., “Inverse Quantization of Digital Binary Images for Resolution Conversion,” Scale-Space and Morphology in Computer Vision—Third International Conference, Scale-Space 2001, vol. 2106, Jul. 7, 2001, pp. 426-434, XP002320439, Vancouver.
J. Allebach et al., “Edge-Directed Interpolation,” Proceedings of the International Conference on Image Processing (ICIP), Lausanne, Sep. 16-19, 1996, New York, IEEE, US, vol. 3, pp. 707-710, XP000704112.

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