1. ANMRR (Average Normalized Modified Retrieval Rank)
Defined in “Core Experiments on MPEG-7 Edge Histogram Descriptors,”
ISO/IEC JTC1/SC29/WG11- MPEG/M5984, Geneva, Switzerland, May 2000
Reporter: Jen-Bang Feng
Date: 2004/09/16

2. Outline
Moving Picture Experts Group
MPEG-7 Standard
ANMRR
Example

3. Moving Picture Experts Group
MPEG-1: A standard for storage and retrieval of moving pictures and associated audio on storage media
MPEG-2: A standard for digital television
MPEG-4: A standard for multimedia applications
MPEG-7: A content representation standard for information search

4. Main Elements of the MPEG-7’s Standard
Description Tools:
Descriptors (D), Description Schemes (DS)
Description Definition Language (DDL)
System Tools
Core experiments content sets

5. ANMRR
(Average Normalized Modified Retrieval Rank)
The measure that exploits the rank of the retrieved images as well
lower ANMRR  more accurate retrieval
Between [0, 1]

6. Example of ANMRR A query qi has Ni = 10 similar images
(Average Normalized Modified Retrieval Rank)
A query qi has Ni = 10 similar images
Search for top 20
found at 1, 5, 8, 13, 14, 18-th

7. Efficient Use of Local Edge Histogram Descriptor
D.K. Park, Y.S. Jeon, and C.S. Won,
Int. Workshop on Standards, Interoperability and Practices, ACM, Marina del Rey, CA, Nov. 4, 2000, pp
2 bits/bin
3 bits/bin
4 bits/bin
5 bits/bin
with local histogram only
with local,
semi-global
and global
histograms
(proposed)

8. Edge Image Description Using Angular Radial Partitioning
A. Chalechale, A. Mertins and G. Naghdy,
IEE Proceedings Vision, Image and Signal Processing, vol. 151, no. 2, Apr. 2004, pp. 93–101