Structural Annotation of EM Images by Graph Cut

Biological images have the potential to reveal complex signatures that may not be amenable to morphological modeling in terms of shape, location, texture, and color. An effective analytical method is to characterize the composition of a specimen based on user-defined patterns of texture and contrast formation. However, such a simple requirement demands an improved model for stability and robustness. Here, an interactive computational model is introduced for learning patterns of interest by example. The learned patterns bound an active contour model in which the traditional gradient descent optimization is replaced by the more efficient optimization of the graph cut methods. First, the energy function is defined according to the curve evolution. Next, a graph is constructed with weighted edges on the energy function and is optimized with the graph cut algorithm. As a result, the method combines the advantages of the level set method and graph cut algorithm, i.e., “topological” i...

• Type: Conference
• Year: 2009
• Where: ISBI
• Authors: Hang Chang, Manfred Auer, Bahram Parvin
• Keywords: Effective Analytical Method, Graph Cut, Graph Cut Algorithm, ISBI 2009, Medical Imaging