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KMID : 0372919890100030293
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Journal of Biomedical Engineering Research
1989 Volume.10 No. 3 p.293 ~ p.301
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Image Restoration in Digital Radiography Using Dual Sensor Wiener Filer
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이태수
박광석/민병구/임정기/한만청
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Abstract
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A Dual Sensor Wiener Filter technique was used to improve the image quality of the scanning type digital radiographic system (resolution and SNR). In this method, two images were acquried simultaneously using two sensors with high and low resolution and SNR values. Using the cross Power spectrum between dual sensor outputs of the same chest radiographic image. we design a new type of Wiener Filter and implement it with fast algorithm. We compared the performance of this new dual sensor filter with conventional single sensor filters (Wiener Filter and Parametric Projec- tion Filter) . In simulation studies, it is shown that this new method has SNR improvement of 1-3 dB better than conventional filters.
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KEYWORD
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