Table 1: Performance measurements among various combinations of appearance based, shape based, and appearance-shape based visual features and MFCC based, LPCC based, and MFCC-LPCC based audio features according to various SNRs.

SNR (dB)Appearance based feature (%)Shape based feature (%)Appearance-shape based feature fusion (%)MFCC based feature (%)LPCC based feature (%)MFCC-LPCC based feature fusion (%)

085.0088.0093.005.004.008.33
585.0088.0093.0010.678.3313.33
1085.0088.0093.0021.3318.6728.33
1585.0088.0093.0035.3330.0050.00
2085.0088.0093.0050.6743.3372.33
2585.0088.0093.0070.0063.6780.00
3085.0088.0093.0090.0086.3393.67

Average (%)
(0 dB~30 dB)
85.0088.0093.0040.4236.3349.42