PDF-Active Contour without Edges

TonyChanandLuminitaVese Tony Basic idea in classical active contours AreainsideC Boundary detectionstopping edgefunction external forces 0 lim 0 t g g g Example 0 t g g g t p G ug . e the smallest subset such that has no directed cycles Let be the number of unordered pairs of vertices of which are not adjacent We prove that every directed graph whose shortest directed cycle has length at l east 4 satis64257es c r where is an a What is a contour . interval?. The difference . in elevation between two contour lines that are side by side.. Sometimes the map tells you! . How can we determine the contour interval?. How can we determine the contour interval?. 1st step in learning how to draw. Vocabulary. Composition. - the organization or arrangement of the art elements in a pictorial space.. Contour. - a line that delineates or represents both the outside edges of an object and the edges of planes.. A . map . showing the surface features of an area. Topography is based on an area’s elevation, relief, and landforms. What is topographic map?. Example:. Contour lines. Contour intervals. Reliefs. How to read . What do we need to do with water?. Slow it, Spread it, Sink it!. Brad Lancaster:. “Rainwater Harvesting for Drylands and Beyond”. The 8 Principles of Successful Rainwater Harvesting. Berm and Basin. - continuous and discrete approaches . 2 : . Exact . and approximate techniques. . - non-submodular and high-order problems. 3: Multi-region segmentation (Milan). - high-dimensional applications . Three dimensional (3D) shapes are defined by the number of . faces, edges. and . vertices. (corners) that they have.. VERTEX (plural is vertices). EDGE. TETRAHEDRON. FACE. Contour lines are lines drawn on a map that connect points of equal elevation. If you walk along a contour line you neither gain or lose elevation.  . Picture walking along a beach exactly where the water. Csaba. . Tóth. , . Godfried. Toussaint, and . Andrew Winslow. Klee’s Art Gallery Problem. Victor Klee (1973): How many guards . are needed to see the entire floor plan?. Consider the floor plan of an art gallery, and point. UC Berkeley. Fall 2010. http://jagger.me.berkeley.edu/~pack/me190L. Copyright . 2007-10, . Andy Packard. This work is licensed under the Creative Commons Attribution-. ShareAlike. License. To view a copy of this license, visit . Outline. Contour drawing in art. S. il. h. o. uette. . / outline. Definition of outlines. Image space. Object space. Image space methods. Edge detection. First order methods. Second order methods. Edge. Let’s make a topographic profile from A to C, passing through the top of the bank at B. It will help us see how steep the East Flower Garden Bank is along that line. To make a topographic profile you will need:. a ridge. a valley. g. oing uphill. closer . contours. = steeper slope. contours farther apart = shallower slope. Imagine that the red line represents a geologic contact of some sort. Given that it doesn’t parallel contours we know it isn’t horizontal, and given that it doesn’t cut straight across contours we know it isn’t vertical. Can we tell something about its orientation? . for. . (. s,t. )-. mincuts. Surender Baswana. Department of CSE, IIT Kanpur. Joint work with . Koustav. . Bhanja. Research supported by . Tapas Mishra Memorial Chair. (. ,. ). -. cut.  . ,. . with.