標題: An embedded audio-visual tracking and speech purification system on a dual-core processor platform
作者: Hu, Jwu-Sheng
Lee, Ming-Tang
Yang, Chia-Hsing
電控工程研究所
Institute of Electrical and Control Engineering
關鍵字: Audio-visual tracking;Dual-core;Embedded processor;Speech enhancement;Microphone array
公開日期: 1-Nov-2010
摘要: Design of an embedded audio-visual tracking and speech purification system is described in this paper. The system is able to perform human face tracking, voice activity detection, sound source direction estimation, and speech enhancement in real-time. Estimating the sound source directions helps to initialize the human face tracking module when the target changes the direction. The implementation architecture is based on an embedded dual-core processor, Texas Instruments DM6446 platform (Davinci), which contains an ARM core and a DSP core. For speech signal processing, an eight-channel digital microphone array is developed and the associated pre-processing and interfacing features are designed using the Altera Cyclone II FPGA. All the experiments are conducted in a real environment and the experimental results show that this system can execute all the audition and vision functions in real-time. (C) 2010 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.micpro.2010.05.004
http://hdl.handle.net/11536/32024
ISSN: 0141-9331
DOI: 10.1016/j.micpro.2010.05.004
期刊: MICROPROCESSORS AND MICROSYSTEMS
Volume: 34
Issue: 7-8
起始頁: 274
結束頁: 284
Appears in Collections:Articles


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