Edge Detection in Ultrasound Speckle Noise
نویسندگان
چکیده
In this paper, we present a statistical approach to edge detection in ultrasound speckle, and use actual noise statistics to derive an expression for an optimal detection rule. We compute the optimal detector for the special case of uncor-related speckle, and an approximation to the optimal detector for the case when signal-to-noise ratio (SNR) is high. We also discuss a simple sub-optimal detection scheme, and show that its performance is close to that of the optimal un-correlated speckle detection rule, and surpasses that of the high-SNR approximation except in the case of extremely high SNR, in which case they both perform equally well.
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