Libras-10 Dynamic Signs Database

one-handed:
	P1 - letter H	P2 - day	P3 - again	P4 - yours	P5 - letter J
two-handed:
	P6 - night	P7 - enter	P8 - all	P9 - start	P10 - course

The Libras-10 Dynamic Signs Database is composed by samples of a set of 10 classes representing dynamic signs of Libras, which were selected by Libras (Brazilian Sign Language, BSL) specialists. The project was carried out by researchers and students from the Institute of Computing of Federal University of Alagoas, Brazil. The dynamic signs were chosen to satisfy the following requirements: 5 one-handed signs and 5 two-handed signs; all signs should be very distinct, to increase diversity, except for two pairs of similar signs which are harder to discriminate ("night" and "enter"), to better evaluate the robustness of the models. For each class, we collected approximately 300 examples of depth videos. The number of frames per example varies, and the longest example contains 40 frames. The database was originally collected to evaluate the methodology presented in the paper "Lucas Amaral, Givanildo L. N. Júnior, Tiago Vieira and Thales Vieira, 'Evaluating deep models for dynamic brazilian sign language recognition'. In Iberoamerican Congress on Pattern Recognition 2018. Springer, Cham".