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In this paper, efficiency comparison of Support Vector Machines (SVM) and Binary Support Vector Machines (BSVM) techniques in utterance-based emotion recognition is studied. Acoustic features including energy, Mel-frequency cepstral coefficients (MFCC), Perceptual linear predictive (PLP), Filter bank (FBANK), pitch, their first and second derivatives are used as frame-based features. Four basic emotions...
The Hybrid encoder is trying to choose the better encoder between the Wavelet Difference Reduction (Type-W) and Simple Bit-plane (Type-B) to get the better results than pure Type-W or pure Type-B was proposed in previous research. In case that the most pixels are insignificant, Type-B will generate a long consecutive sequence of zero bits. By experimental results, the Modified Simple Bit-plane which...
In this paper, fingerprint images compressed with WSQ, CAWDR and JPEG2000 are evaluated for fingerprint recognition performance. With high compression ratio between 40:1 to 160:1, fingerprint images which lost a lot of their details are used to find fingercodes, or core point. Euclidean Distance is the method used to find the matched fingerprint. We also proposed the subband-reduced CAWDR method which...
The performance of image compression is based on number of levels of wavelet transform and compression algorithm. Padding some extra pixels to the inappropriate-sized images can make them legible for many levels of conventional (or symmetric) wavelet transform. However, more pixels mean more cost in bit budget and also more computational time. The implementation of asymmetric wavelet decomposition...
This paper proposes a new image coding technique with low-memory usage and fast encoding/decoding time. In this embedded coder, the wavelet coefficients are tested with adaptive threshold and encoded into bit-stream with wavelet difference reduction (WDR) technique. However, the original WDR is a list-based coder and needs quite a lot of memory during the encoding/decoding process. Our new technique...
We propose a new still image coding technique which is a highly developed version of the renowned wavelet difference reduction (WDR). This new coder inherits the important properties from the original WDR, such as embeddedness, target compression ratio, region of interest support and the simplicity. The special treatment is performed in the significant pass by using context-based adaptable scanning...
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