The mask feature distortion comes from simulation of laser scanning lithography.
This technique assumed that feature distortion is caused by the convolution of the point spread function of the imaging system with the underlying feature.
We next turn to missing feature techniques, which can be used to model feature distortion due to a front-end enhancement process [7], noise [49], or reverberation [50].
Apart from the recognition performance, in this subsection, we evaluate WS-HEQ in the capacity of reducing the feature distortion caused by noise.
Their performance is much better than the moving average FIR filter, which causes significant feature distortion and has poor outlier removal capabilities and shows the potential of soft computing methods for specific signal-processing applications.
Figure 9 Feature distortion averaged over the 1,001 utterances of test set A. It is achieved by S-HEQ, WS-HEQ I(1)(α=0.6), and WS-HEQ II ( 1 ) ( α = 0.6 ).
The incoherent feature distortion [7] defined by φ = Σ k ( | X [ k ] | − | X ~ [ k ] | ) 2 Σ k | X ~ [ k ] | 2 (16). is measured for the feature streams processed by the noise-robustness method, where X ~ [ k ] and X[ k] denote the DFT of the noise-free clean feature stream and its noise-corrupted counterpart, respectively.
Figure 9 depicts the feature distortion associated with any cepstral channel at the SNR of 10 dB, averaged over the 1,001 utterances in test set A of the Aurora-2 database, with respect to the feature streams processed by any of S-HEQ, WS-HEQ I ( 1 ) with α=0.6, and WS-HEQ II ( 1 ) with α=0.6.
In this election year, we can expect more purging of voters across the country and more super PAC money thrown in by a small band of super-wealthy right-wingers, who will up the stakes as the months roll on with increasing numbers of attack ads featuring distortions and outright lies against Dem candidates.
The song builds tension until the final verse, which features loud distortion, and is followed by a lengthy outro.
