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Automatic noise estimation from the multiresolution support
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OA
AI
DOI：10.1086/316124.png)
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摘要
En 中文
We describe an automated approach for determining the noise associated with astronomical images. Detector noise is ever present and must be determined for high-quality image filtering or compression. We also show that the method can be used for very high quality cosmic-ray hit removal. Our method is based on a multiresolution transform of the image, the a trous wavelet transform. We present a range of examples and applications to illustrate the effectiveness of this approach.
Keyword:
IMAGE
SUPPRESSION
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IF:
7.7
论文数:
4.0K
被引数:
1.8W
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