Some public dataset is presented in the following link:

Computer Vision Datasets – Resource

Department of Computer Science – Database1 or Database2 at the University of Texas at Austin

Medical Visualisation – Link Databases

Yet Another Computer Vision Index To Datasets (YACVID) – Datasets

Face Recognition – Datasets

UC Irvine Machine Learning – Repository

Computer Vision Laboratory – Datasets – at ETH Zurich

Point Cloud – Datasets

Digital Database – Mammography – at University of South Florida

Pilot European Image Processing Archive – Datasets – EU’s IST programme

Open datasets and software – Robotics – at QUT

Fish Recognition Ground Truth – Datasets – from Fish4Knowledge project

Fish Video EcoGrid – Datasets – History Clips Retrieval

Department of Electrical, Electronics and Computer Engineering – PeRCeiVe Lab – at the University of Catania

GroupLens Research – MovieLens

Sharing bird sounds from around the world – xeno-canto

Reference Animal Vocalisations

Internet Bird Collection – IBC