Documentation for Video/EdgeHistogram

Technique Edge Histogram
Document MPEG-7 Visual (ISO/IEC 15938-3)
Name Soo-Jun Park (ETRI), Chee Sun Won (Dongguk Uni.)
EMail psj@etri.re.kr, cswon@dongguk.edu
Contact psj@etri.re.kr
Type Application
External Libraries none
Related Ds/DSs Still Region DS, Video Segment DS, Moving Object Ds, TimeSeries DS
Used Ds/DSs none
Input Images
Extraction Yes
Client Appl Search & Retrieval
Summary This library implements the edge histogram descriptor, which is designed to represent the spatial distribution of 5 types of edges in local image regions. It includes both extraction (rectangular and arbitrary shaped) and matching. For the non-normative matching, it includes the semi-global and global histogram matching schemes. For the video segment retrieval, this descriptor should be contained in TimeSeries DS.
Strong Points Since the edge histogram descriptor consists of local edge histograms only, it is very flexible to represent some global and semi-global edge characteristic for the matching and is also compact.
Limitations None
Although our recommendation for the smallest image/object size is 70*70(pixels), this library also works for the images/objects smaller than that by exapnding the image/object size with a bilinear interpoaltion scheme.
Known Problems None.
Parameters None.