APA (7th ed.) Citation

Qi, Z. (2001). Audio-visual based speech recognition using lip feature and hidden markov modelling.

Chicago Style (17th ed.) Citation

Qi, Zhi. Audio-visual Based Speech Recognition Using Lip Feature and Hidden Markov Modelling. 2001.

MLA (8th ed.) Citation

Qi, Zhi. Audio-visual Based Speech Recognition Using Lip Feature and Hidden Markov Modelling. 2001.

Warning: These citations may not always be 100% accurate.