Brazilian Sign Language (LIBRAS) Hand Configurations Database

LIBRAS-HC-RGBDS is a video database containing 61 hand configurations of the Brasilian Sign Language (LIBRAS), and was acquired with the Kinect sensor, using specially developed acquisition software based on the OpenNI4 library (for more details, see here).

Five actors performed the predefined sequence of movements depicted in the Figure below twice for each hand configuration, resulting in 610 videos (10 for each class). Besides the RGBD (red, green, blue, depth) channels, the videos also contain
the skeleton of the actor, as generated by OpenNI during acquisition, allowing to track the actor’s joints. Each video has a duration of 5 to 10 seconds and VGA resolution (640 × 480 pixels). The database has a size of approx. 9GB.

How to obtain the videos

Brazilian Sign Languager Hand Configurations Database can be used for non-commercial research provided you acknowledge the source of the images/videos by citing the following paper in publications about your research:

PORFIRIO, A.; WIGGERS, K.; OLIVEIRA, L. E. S.; WEINGAERTNER, D. “LIBRAS Sign Language Hand Configuration Recognition Based on 3D Meshes”. In: 2013 IEEE International Conference on Systems, Man, and Cybernetics (SMC), 2013.

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