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We present the design and development of a novel antenna that effectively radiates at three frequency bands to harvest RF energy from cellular network frequency bands (900 MHz and 1900 MHz) and Wi-Fi sources (2.4 GHz) available in ambience. The antenna is designed using the combination of three different design techniques including composite right/left hand transmission line (CRLH). In addition, a high efficiency, sensitive triple-band rectifier is also proposed in this work. The rectifier provides a maximum conversion efficiency of 80%, 46% and 42% at 940MHz, 1.95GHz and 2.44 GHz, respectively. The experimental results demonstrate that the proposed triple-band RF energy harvesting system can collect 6.6 times more power than the single 900MHz band one and 3.4 times more power than three individual bands combined.Index terms -triple-band antenna, triple-band rectifier, high efficiency rectifier, and RF energy harvesting.

Summarization is an essential requirement for achieving a more compact and interesting representation of sports video contents. We propose a framework that integrates highlights into play segments and reveal why we should still retain breaks. Experimental results show that fast detections of whistle sounds, crowd excitement, and text boxes can complement existing techniques for playbreaks and highlights localization.

Abstract:The IT research community, comprising both academic and industry stakeholders, is responding to national and international imperatives that challenge disparate groups to work together. In this article we show how, within both academic and industrial contexts, researchers interpret, or constitute, the significance and value of research in different ways.Important aspects of these differences may be described in terms of what comes to the foreground when members of the community are asked to consider the significance of projects; and what recedes to the background, ultimately forming a 'perceptual boundary' beyond which they do not see. The study reported here represents a first step in understanding one dimension of the 'collective consciousness' of the IT research community.The framework developed may contribute to the widening awareness of more experienced researchers, as well as revealing something of the character of the research community to those engaged in researcher training, education and development.

Human emotional behavior, personality, and body language are the essential elements in the recognition of a believable synthetic story character. This paper presents an approach using story scripts and action descriptions in a form similar to the content description of storyboards to predict specific personality and emotional states. By adopting the Abridged Big Five Circumplex (AB5C) Model of personality from the study of psychology as a basis for a computational model, we construct a hierarchical fuzzy rule-based system to facilitate the personality and emotion control of the body language of a dynamic story character. The story character can consistently perform specific postures and gestures based on his/her personality type. Story designers can devise a story context in the form of our story interface which predictably motivates personality and emotion values to drive the appropriate movements of the story characters. Our system takes advantage of relevant knowledge described by psychologists and researchers of storytelling, nonverbal communication, and human movement. Our ultimate goal is to facilitate the high-level control of a synthetic character.

This paper proposed a systematic approach for exploring the interactions of aesthetic properties and design variables, by integrating knowledge from other fields such as philosophy, psychology and arts. Commonly-accepted aesthetic properties and language terms used for evaluation and criticism are first discussed and a common set of nine principles for achieving aesthetic products in a number of creative disciplines is identified. We then analyse the way these principles influence product characteristics and extract concrete and computable properties of products that may be varied to induce different aesthetic judgements and responses.