In this paper, classifier fusion is adopted to demonstrate improved performance for our text overlay detections in the NIST TREC-2002 Video Retrieval Benchmark. A normalized ensemble fusion is explored to combine two text overlay detection models. The fusion incorporates normalization of confidence scores, aggregation via combiner function, and an optimize selection. The proposed fusion classif...

Article history: Received: 14.01.2014. Received in revised form: 01.03.2014. Accepted: 12.03.2014. Optoelectronic coupler, characterized by long life and high reliability, is one typical kind of optoelectronic devices. Accelerated degradation testing is mostly utilized to assess optoelectronic coupler storage life. However, in engineering, integrated optoelectronic coupler may be nagged with th...

This paper proposes a compact and miniaturized branch-line coupler using a crossing bond wire structured slow-wave branch line (CBWSWB). The proposed coupler achieves a size reduction of 82% compared with a conventional implementation. Measured S11, S21, S31 and S41 of the proposed coupler are better than −24, −3.7, −3.7 and −28 dB at 3GHz, respectively. Furthermore, the phase difference betwee...

This paper presents a theoretical analysis of the recently realized tunable coupler for superconducting phase qubits R. C. Bialczak et al., arXiv:1007.2219 unpublished . The coupling can be turned off by compensating a negative mutual inductance with a tunable Josephson inductance. The main coupling in this system is of the XX type and can be zeroed exactly, while there is also a small undesire...

This paper presents the development and performance of blind algorithms for a spatial diversity scheme to enable reliable data telemetry over a long range underwater acoustic channel. A number of Bussgang based stochastic gradient algorithms were tested for this multipath channel with additive white and coloured shipping noise. Both simulation and real experimental tests have shown that a signi...

In a (t;n) group-oriented cryptosystem, collaboration of at least t participants is required to perform the group transformation. Two important issues in implementation of a such cryptosystems are: 1. the sender needs to collect authenticated public keys of the intended receivers; 2. the combiner needs a secure channel to collect (privately) the partial results from collaborating participants. ...

A novel coupled-line structure is proposed to design dual-band and high-power Gysel power dividers with inherent impedance-transforming functions. Based on traditional even- and odd-mode technique, the analytical design methods in closed-form formula are obtained and the accurate electrical parameters analysis is presented. Due to the usage of coupled-line sections, more design-parameter freedo...

In this paper we propose a methodology to design high-speed, power-efficient static frequency dividers based on the low-voltage Folded MOS Current Mode Logic (FMCML) approach. A modeling strategy analyze dependence of propagation delay and power consumption bias currents divide-by-2 (DIV2) cell is introduced. We demonstrate that behavior FMCML DIV2 different both from one conventional MCML DFF ...