This paper investigates the performance of different temporal concealment techniques when incorporated within a long-term motion compensated video codec. In particular, the paper finds a combination of techniques that best recovers the spatial-temporal components of a damaged longterm motion vector. It is demonstrated also that accurate recovery of the spatial components of the damaged motion v...

A comprehensive error compensation system has been developed to correct geometric, thermal, and cutting forceinduced errors on a turning centre. The basic approach to error compensation is proposed in this paper. The implementation of error compensation control and o f hardware configuration of the system are also presented. A total of 11 geometric and thermal error components and 10 cutting fo...

In this contribution, a direct conversion receiver (DCR), zero IF or homodyne receiver applying in-phase/quadrature (I/Q) sampling has been revisited in conjunction with digital error compensation. Contrary to common practice, our main interest is focused on the investigation of performance degradation in conjunction with the processing of ultra-wideband frequency division multiplex (FDM) signa...

Motion compensation exploits temporal correlation in a video sequence to yield high compression efficiency. Multiple reference frame motion compensation is an extension of motion compensation that exploits temporal correlation over a longer time scale. Devised mainly for increasing compression efficiency, it exhibits useful properties such as enhanced error resilience and error concealment. In ...

Abstract In this paper, we extend our generalized methodology for designing lower-error area-efficient fixed-width two’s-complement multipliers that receive two s -bit numbers and produce an s -bit product. The generalized methodology involving four steps results in several better error-compensation biases. These better error-compensation biases can be easily mapped to lower-error fixed-width m...

To enhance a machine’s ability for a precision machining task, an efficient compensation scheme that takes all error sources into account is needed. In this study, an effective static/quasi-static error compensation system composed of an interpolation algorithm based on shape functions for error prediction, and a recursive software compensation procedure, was developed. The new error prediction...

A sequential extreme learning machine incorporating a noise compensation scheme via an information measure is developed. In this design, the computationally simple extreme learning machine architecture is maintained while survival error information potential function provides a mechanism for noise compensation. The error compensation is updated online via an error codebook design where an error...

A coder for television video signals working at a bit-rate of 1.15 Mbit/s is presented. It uses a special coding structure facilitating trick modes and a separated global and local motion compensation. Global motion is described by a central zoom and pan model. For the estimation of global motion a frame matching algorithm is explained. The advantages of using global motion parameters are given...