This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: (a) (b) (c) (d) Digital Subtraction Angiography. (a) Original mask no contrast (b) with contrast not vessels (c) Subtraction of (a) and (b) followed by subpixel registration. Note motion artifacts from patient movement. (d) Subtraction with subpixel warping of foreground mask to compensate for motion. 3. Motion Applications Surveilance, Image Compression Barrett - CS450 Winter 2011 4. Frame Averaging Noise Suppression: Suppose n frames, gaussian noise. Why should frame-averaging work? (Gaussian noise: zero mean => noise should cancel. Calculate the SNR.) 5. Logical Operators Applications Masking, Antialising, Blue Screening. (What is an alpha channel? Alpha Blending?)...
View Full Document
This note was uploaded on 03/02/2012 for the course C S 450 taught by Professor Morse,b during the Winter '08 term at BYU.
- Winter '08