Talk:Steerable filter

notes for proposed article

• origin of the term steerable
  • terminology variant from Linköping: controllable
• pioneers behind the method: Granlund, Knutsson, Freeman, Adelson
• mathematical underpinnings: Gaussian jets, Koenderink's formalism
• quadrature pairs: energy and phase
• analytical, exact steerability vs. approximate steerability via SVD
• steerable, separable filters
• Perona's extension: scalable filters
• applications
  • interest point characterization (Schmid, Mohr)
  • edge and line detection (Freeman, Adelson)
  • texture recognition (Malik et al.)
• connection to Gabor filters
• examples from ter haar Romeny & Lindeberg chapter
• fell out of favor with emergence of haar-like wavelets used in Viola-Jones and Varma and Zisserman's texture recognition method
  • Or did it fall out of favor? Maybe in the realm of fast feature detection. — Preceding unsigned comment added by Serge.Belongie (talk • contribs) 22:22, 6 January 2012 (UTC)
• some reemergence via SURF (speeded up robust features) descriptor
• Discuss relationship with steerable pyramid
  • should it remain a separate article? — Preceding unsigned comment added by Serge.Belongie (talk • contribs) 22:38, 6 January 2012 (UTC)
• Code
  • http://www.cns.nyu.edu/~eero/steerpyr/
• Simoncelli, Freeman, Adelson should comment on finished article.