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Reliable corner detection is extremely important for applications such as 3D scene reconstruction, image registration and motion tracking. There are many kinds of corner detector which have been wildly used. However, the image's changing contrast and brightness under different illuminations may considerably influence these traditional detectors' response, which makes the setting of universal threshold...
In this paper, an image de-noising method is presented based on wavelet transform and median filter. According to the respective characteristics, high frequency sub-band images at horizontal, vertical and angular directions were denoised by three different filter templates after wavelet transform. We take measures to protect edge information and details of image. Experiment results show that the noise...
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