EXISTING TECHNIQUES OF VISUAL PROCESSING - Video Object Extraction and Representation: Theory and Applications - page 30

Figure 2.2. Different Graphical Interpretation of the Image Segmentation Problem:
a) the original image b) the first phase analysis, using spatial correlation of intensity
to create regions or identify region boundaries c) the graph created by a region-based
representation: an object is represented by a set of connected components and d)
the graph created by a boundary-based representation: an object is represented by a
closed cycle
statements and its connections to graph theory, the extraction of image
features through intensity and spatial correlation, and the integration of
object knowledge for image understanding [Fu and Mui, 1980].
DUAL PROBLEM REPRESENTATION
There are two equivalent ways of stating the image segmentation
problem. The choice of problem statement can dictate the applicable
techniques and algorithms. We can map the problem of image segmen-
tation in Fig. 2.2 onto two different graphs and note the different oper-