Technique | Edge Histogram |
---|---|
Document | MPEG-7 Visual (ISO/IEC 15938-3) |
Name | Soo-Jun Park (ETRI), Chee Sun Won (Dongguk Uni.) |
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. |