In this paper we propose a method for computing JPEG quantization matrices for a given mean square error or PSNR. Then, we employ our method to compute JPEG standard progressive operation mode definition scripts using a quantization approach. Therefore, it is no longer necessary to use a trial and error procedure to obtain a desired PSNR and/or definition script, reducing cost. Firstly, we esta...

Fractional-N phase-locked loops (PLLs) are widely used to synthesize local oscillator signals for modulation and demodulation in communication systems. Such PLLs generate and subsequently lowpass filter DC-free quantization noise as part of their normal operation. Unfortunately, the quantization noise and its running sum inevitably are subjected to nonlinear distortion from analog circuit imper...

This paper is devoted to the pricing of Barrier options by optimal quadratic quantization method. From a known useful representation of the premium of barrier options one deduces an algorithm similar to one used to estimate nonlinear filter using quadratic optimal functional quantization. Some numerical tests are fulfilled in the Black-Scholes model and in a local volatility model and a compari...

This paper contains three results about generating functions for Lie-theoretic integration of Poisson brackets and their relation to quantization. In the first, we show how construct a function associated germ any local symplectic groupoid provide an explicit (smooth, non-formal) universal formula $$S_\pi $$ integrating structure $$\pi on coordinate space. The second result involves semiclassic...

In a wireless sensor network, multilevel quantization is necessary to find compromise between minimizing the power consumption of sensors and maximizing detection performance at fusion center (FC). The previous methods have been using distance measures such as J-divergence Bhattacharyya in this quantization. This work proposes different approach based on maximum average entropy output under bot...