Types of Visual Descriptors
Descriptors are the first step to find out the connection between pixels contained in a digital image and what humans recall after having observed an image or a group of images after some minutes.
Visual descriptors are divided in two main groups:
- General information descriptors: they contain low level descriptors which give a description about color, shape, regions, textures and motion.
- Specific domain information descriptors: they give information about objects and events in the scene. A concrete example would be face recognition.
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