Definition:Various coding schemes employ segmentation for different purposes, such as for extracting image regions in order to subsequently approximate the contours and image characteristics of those regions, or for object-based coding.
Segmentation is an important tool for image and video coding applications. Various coding schemes employ segmentation for different purposes, such as for extracting image regions in order to subsequently approximate the contours and image characteristics of those regions, or for object-based coding. The latter presents a framework for achieving improved coding efficiency without compromising the quality of at least the important parts of the image or video, such as a person’s face in a videoconference image sequence, particularly in very low bit-rate communications. One way of achieving this goal is by coding with lower quality the least significant parts of the sequence. Taking advantage of coding schemes like the aforementioned ones requires the use...
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References
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(2006). Segmentation and Coding. In: Furht, B. (eds) Encyclopedia of Multimedia. Springer, Boston, MA. https://doi.org/10.1007/0-387-30038-4_211
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DOI: https://doi.org/10.1007/0-387-30038-4_211
Publisher Name: Springer, Boston, MA
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