On the design of compensator for quantization-caused input-outpu... ... with quantized inputs in order to reduce the influence of quantization. For systems with (vector) relative degrees, we propose a ... for the accumulated output deviation completely caused by quantization. The proposed compensators are capable of keeping the ...
Detection of quantization index modulation steganography in G.72...This paper presents a method to detect the quantization index modulation(QIM) steganography in G.723.1 bit stream.We show that the distribution of each quantization index(codeword) in the quantization index sequence has unbalanced and correlated ...
Multi-bit quantization based on neighboring structure preservati... ... on projection learning, and few efforts are dedicated to quantization coding. In this paper, we present a multi-bit ... quality of projection values by adaptively learning quantization thresholds and quantizing each projection dimension with multiple bits. ...