Uma Proposta de Protocolo de Codificação de LIBRAS para Sistemas de TV Digital

• Felipe Herminio Lemos UFPB
• Felipe Lacet Ferreira UFPB
• Tiago Maritan U. de Araújo UFPB
• Gutenberg Botelho Neto UFPB
• Guido Lemos Filho UFPB

Abstract

Nowadays, the digital television system do not have specific standards for sign languages (SL). The solution used in TV is to transmit a window with a SL interpreter into the video program. This solution is ineffective in several aspects: it has hight operational cost, is depedent of a interpreter, and distract nondeaf viewers. In addition, it does not respects the regional differences in SLs. To reduce these problems, the main objetive of this paper is to propose a protocol to encode and transmit Brazilian sign language (LIBRAS) windows into digital television systems. In this propose, the frames of LIBRAS windows are not transmitted. Instead, a set of codes is transmitted, where each code is related to a visual representation of a sign in LIBRAS sotred in the TV receiver. Thus it is possible to respect the regional differences of SL and to reduce the used bandwith. Additionally, some strategies to represent sounds effects, voice intonation and emotion nuances are also being investigated.

Keywords: LIBRAS, digital television, sign language, encode, protocol, Brazilian Sign Language