Cheng-Huei Chiang

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In this paper, we present a multiresolution approach for the inspection of local defects embedded in homogeneously textured surfaces. It is based on an efficient image restoration scheme using the wavelet transforms. By properly selecting the smooth subimage or the combination of detail subimages at different resolution levels for image reconstruction, the(More)
Pixel-by-pixel template matching is very time-consuming. For an input image of size N N × , and the template of size W W × , the computational complexity is O( 2 2 N W‧ ), given that the object orientations in both images are coincident. When we search an object with unknown orientation, the straightforward way to do template matching is to rotate the(More)
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