نتایج جستجو برای: noise ratio

تعداد نتایج: 652232  

Medical ultrasound imaging due to close behavior of cancer tumors to body tissues has a low contrast. This problem with synthetic aperture imaging method has been addressed. Although the synthetic aperture imaging technique solved the low-contrast problem of ultrasound images, to an acceptable limit, but the performance of these methods is not even acceptable when the signal to noise ratio (SNR...

Journal: :Journal of the Optical Society of America A 2008

Journal: :The Journal of the Acoustical Society of America 1978

Journal: :Symposium - International Astronomical Union 1988

2013
Bikesh Kumar Singh P. Batra Kesari Verma A. S. Thoke

An ultrasound image provides the radiologist with noninvasive, low cost, and real-time images that can help them in diagnosis, planning and therapy. However low PSNR (picture signal to noise ratio) in ultrasound images causes difficulties in correct interpretation of ultrasound images. Further speckle noise present in ultrasound images is considered to be the major cause of its low PSNR. In thi...

Journal: :IEEE Transactions on Audio, Speech and Language Processing 2006

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