Wojciech Michal Matkowski, Krzysztof Matkowski, Adams Wai Kin Kong and Cory Lloyd Hall. The Nipple-Areola Complex for Criminal Identification. In International Conference on Biometrics (ICB), June 2019, DOI: 10.1109/ICB45273.2019.8987341.

Paper is on arXiv here
Paper is on IEEE Xplore here

NTU-Nipple-v1 dataset contains 2732 images of 428 different male nipple-areolae (NAC) from 2 sessions in relatively well-controlled environment.

To acquire the NTU-Nipple-v1 dataset (which was used in the paper), download and fill in the "Data Release Agreement.pdf" file. Print the agreement and sign on page 2. Scan the signed copy and send back to [email protected], [email protected] or [email protected] with title "Application for NTU-Nipple-v1 dataset". A download link to the corresponding dataset will be send to you once after we receive the signed agreement file.

Examples of images from NTU-Nipple-v1 dataset. Note that these example NAC images are resized to the same size. In NTU-Nipple-v1 dataset, NAC images have different (but still square) sizes.

First row: session 1
Second row: session 2
NOTE: in this figure, images are resized down to the same size. In NTU-Nipple-v1 image sizes vary and the median size is 179 by 179 pixels.

Currently the highest identification accuracies (under the protocol described in the paper) are:
75.75% at rank-1
94.46% at rank-15
96.54% at rank-30

If you have any questions about the paper please email me on [email protected] or [email protected] or [email protected]