Human Identification at a Distance
UMD Database


HID-UMD databases contain walking sequences of 25-50 people in 4 different poses captured by our outdoor Philips G3 EnviroDome camera systems. These databases are used in our gait recognition and face recognition systems for human identification at a distance project. Between February and May 2001 we collected the first dataset containing walking sequences in 4 different poses of 25 people from one of the cameras. In the second dataset, which was acquired during the period of June to July 2001, we expanded the number of subjects into 55 people and used 2 cameras to capture the walking subject simultaneously from orthogonal views. Each image sequence is accompanied by a binary image sequence of segmented foreground as well as a text-formatted ground-truth file describing all the details about data, subjects, and capturing method.

We have recently collected a small dataset of 12 people walking at angles of 0, 15, 30, 45 and 60 degrees to the camera. The idea of this collectection is to test our view synthesis algorithm.

These datasets are available for HumanID participants. To obtain these datasets, we have options as follows:

Please contact  Amit K. Roy Chowdhury for ftp userID and passwd or tape archives.

.. Dataset-1 ..

Dataset-1 contains walking sequences of 25 subjects in 4 different poses:
  1. Frontal view/walking-toward 
  2. Frontal view/walking-away 
  3. Frontal-parallel view/toward left
  4. Frontal-parallel view/toward right 
.. Dataset-2 ..

Dataset-2 contains walking sequences of 55 subjects walking along a T-shape pathway. Each video was captured by 2 camera systems which lines orthogonal to each other. 
  1. Sample image from our C#6 camera. 
  2. Sample image from our C#8 camera. 
.. Evaluation Scheme..

Our Evaluation Scheme
.. Contacts ..
  •  Amit K. Roy Chowdhury  (

  • 4465 A.V.Williams Building 
    Center for Automation Research 
    University of Maryland 
    College Park, MD 20742 
    Phone: (301) 405-1756 
    FAX: (301) 314-9115 


Home | Overview | People | Research | Publications | Data | Evaluation | Links | Contacts                                                     Site Last Modified: 9/15/2001