Fast Object Delineation for Content Based Retrieval and Navigation
نویسنده
چکیده
Techniques for navigating through and retrieving text documents are widely understood and there any many tools that support their use. By contrast the extension to non-text information such as image, video, and sound is not widely supported at all. This is due to the fact that the fundamental operations of selection and matching are not as well de ned as they are for text. Unlike textual media where an object of interest, such as a word or phrase, can be easily selected and separated from the background (the text le), delineating and extracting objects or regions of interest from images, video, or sound les may be a non-trivial task. Words in a text le are clearly delineated by white space or punctuation, but in many cases no such clear distinction exists between features and background in non-textual media.
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