02-03-2013, 11:46 AM
Content Based Image Retrieval Using Boundary Based Shape Descriptors
[attachment=52391]
Image retrieval
An image retrieval system is a system for searching and retrieving images from a large database.
Types of image retrieval
Text based image retrieval
Content based image retrieval
Shape
Shape can be represented into two ways
Boundary based(external characteristics)
Region based(internal characteristics)
Boundary based Shape features
Contour points distribution histogram
Chain codes
Polygon decomposition
Perimeter
Eccentricity
Curvature
Axis direction
Centroid distance
Complex coordinates
Curvature signature
Turning angle
Objective
to extract the contour based features from the query image and compare the features with the features in the database and retrieving the images based on distance measures .
[attachment=52391]
Image retrieval
An image retrieval system is a system for searching and retrieving images from a large database.
Types of image retrieval
Text based image retrieval
Content based image retrieval
Shape
Shape can be represented into two ways
Boundary based(external characteristics)
Region based(internal characteristics)
Boundary based Shape features
Contour points distribution histogram
Chain codes
Polygon decomposition
Perimeter
Eccentricity
Curvature
Axis direction
Centroid distance
Complex coordinates
Curvature signature
Turning angle
Objective
to extract the contour based features from the query image and compare the features with the features in the database and retrieving the images based on distance measures .