Asm(Uppsala)

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Active Shape modeling
its pros and cons.
Its application on hand detection

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Asm(Uppsala)

  1. 1. A.Rahim Kadkhodamohammadi January, 2011
  2. 2. <ul><li>Point Distribution Model </li></ul><ul><li>Training: Apply PCA to labeled images </li></ul><ul><li>New image </li></ul><ul><ul><li>Project mean shape </li></ul></ul><ul><ul><li>Iteratively modify model points to fit local neighborhood </li></ul></ul>
  3. 3. <ul><li>Landmark points </li></ul><ul><li>Interpolation </li></ul><ul><li>Align all shape </li></ul><ul><li>PCA </li></ul>
  4. 5. <ul><li>Looking for Landmarks </li></ul><ul><li>Gray Level Profile (GLP) </li></ul><ul><li>Shape deformation: </li></ul><ul><ul><li>Scaling </li></ul></ul><ul><ul><li>Translation </li></ul></ul><ul><ul><li>rotation </li></ul></ul><ul><ul><li>Allowable displacement </li></ul></ul>
  5. 11. <ul><li>Multi-resolution (Scale Space) </li></ul><ul><li>Line Search </li></ul><ul><li>Initialization </li></ul><ul><li>Variation of Principal Component </li></ul>
  6. 12. <ul><li>ASM is relatively fast </li></ul><ul><li>ASM too simplistic; not robust when new images are introduced </li></ul><ul><li>May not converge to good solution </li></ul>
  7. 13. <ul><li>Questions and Comments are Welcome </li></ul>Thank You

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