In this lecture, a limited introduction of gauge invariance in phase-space is provided, predicated on canonical transformations in quantum phase-space. Exact characteristic tra-jectories are also specified for the time-propagating Wigner phase-space distribution function: they are especially simple—indeed, classical—for the quantized simple harmonic oscillator. This serves as the underpinning o...

In this lecture, a limited introduction of gauge invariance in phase-space is provided, predicated on canonical transformations in quantum phase-space. Exact characteristic tra-jectories are also specified for the time-propagating Wigner phase-space distribution function: they are especially simple—indeed, classical—for the quantized simple harmonic oscillator. This serves as the underpinning o...

We consistently quantize a class of relativistic non-local field equations characterized by a non-local kinetic term in the lagrangian. We solve the classical non-local equations of motion for a scalar field and evaluate the on-shell hamiltonian. The quantization is realized by imposing Heisenberg’s equation which leads to the commutator algebra obeyed by the Fourier components of the field. We...

An improved video subband coding technique is presented. It is based on a spatially and spectrally localizing subband analysis, followed by scalar quantization and direct arithmetic coding. The quantization and coding parameters are adapted on the basis of local energy of the subband pixels. The proposed technique automatically achieves near-optimal rate allocation with respect to mean-square e...

This correspondence considers multiple-input single-output (MISO) wireless systems with equal gain transmission (EGT) at the transmitter and maximum ratio combining (MRC) at the receiver. In such systems, the receiver feedbacks the elemental phases of beam-forming vectors to the transmitter. Due to finite feedback rate, the elemental phases of beam-forming vectors have to be quantized effective...

Local binary patterns (LBP) has been very successful in a number of areas, including texture analysis and face analysis. Recently, local quantized patterns (LQP) was proposed to use vector quantization to code complicated patterns with a large number of neighbors and several quantization levels. It uses lookup table technique to map patterns into the corresponding indices. In this paper, we pro...