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Fitting : Voting and the Hough Transform

Fitting : Voting and the Hough Transform

Fitting : Voting and the Hough Transform. Monday, Feb 14 Prof. Kristen Grauman UT-Austin. Last time: Grouping. Bottom-up segmentation via clustering To find mid-level regions, tokens General choices -- features, affinity functions, and clustering algorithms

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800 views • 56 slides
Edge Detection

Edge Detection

Edge Detection. Edge detection. Convert a 2D image into a set of curves Extracts salient features of the scene More compact than pixels. Origin of Edges. Edges are caused by a variety of factors. surface normal discontinuity. depth discontinuity. surface color discontinuity.

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687 views • 55 slides
Edge Detection

Edge Detection

Edge Detection. CSE 576 Ali Farhadi. Many slides from Steve Seitz and Larry Zitnick. Edge. Attneave's Cat (1954) . Origin of edges. surface normal discontinuity. depth discontinuity. surface color discontinuity. illumination discontinuity. Edges are caused by a variety of factors.

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526 views • 39 slides
Fitting : Voting and the Hough Transform

Fitting : Voting and the Hough Transform

Fitting : Voting and the Hough Transform. Monday, Feb 14 Prof. Kristen Grauman UT-Austin. Now: Fitting. Want to associate a model with observed features. [Fig from Marszalek & Schmid, 2007]. For example, the model could be a line, a circle, or an arbitrary shape . Kristen Grauman.

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518 views • 38 slides
Edge Detection

Edge Detection

Edge Detection. CSEP 576 Ali Farhadi. Edge. Attneave's Cat (1954) . Origin of edges. surface normal discontinuity. depth discontinuity. surface color discontinuity. illumination discontinuity. Edges are caused by a variety of factors. intensity function (along horizontal scanline).

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603 views • 38 slides
Edge Detection

Edge Detection

Edge Detection. CSE P 576 Larry Zitnick (larryz@microsoft.com). What is an edge?. Cole et al. Siggraph 2008, results of 107 humans. Origin of edges. surface normal discontinuity. depth discontinuity. surface color discontinuity. illumination discontinuity.

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335 views • 21 slides

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