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Prioritized Region of Interest Coding in JPEG2000

IEEE Transactions on Circuits and Systems for Video Technology, 2004
A method is proposed to encode multiple regions of interest in the JPEG2000 image-coding framework. The algorithm is based on the rearrangement of packets in the code-stream to place the regions of interest before the background coefficients. In order to improve the quality of the reconstructed image, partial background information is included with the
M K Mandal
exaly   +2 more sources

Point of interest to region of interest conversion

Proceedings of the 21st ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2013
Trajectories of people contain a vast amount of information on users' interests and popularity of locations. To obtain this information, the places visited by the owner of the device on such a trajectory need to be recognized. However, the location information on a point of interest (POI) in a database is normally limited to an address and a coordinate
Victor de Graaff   +3 more
openaire   +2 more sources

Integration of Points of Interest and Regions of Interest

2014 IEEE China Summit & International Conference on Signal and Information Processing (ChinaSIP), 2014
Images consist of different low-level features, such as Points of Interest (POIs) and Regions of Interest (ROIs). A distinction between POIs and ROIs is that the latter ones have intrinsic scale information while the former ones may not have. In this paper, we propose a scheme to integrate these two kinds of image features.
Qi Li 0001, Yongyi Gong, Yixuan Lu
openaire   +1 more source

Region of interest fluoroscopy

Medical Physics, 1992
In some medical imaging applications, it is necessary to visualize only the center of the field of view with optimal quality. For example, often in interventional radiographic procedures only the region directly adjacent to the catheter tip must be well seen.
S, Rudin, D R, Bednarek
openaire   +2 more sources

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