Computer graphics is an area where huge progress has been made during the last decades. In this article I will try to give the reader an overview of the different techniques that constitutes the foundation of the broad field of computer graphics. The generic idea when talking about computer graphics is to produce two-dimensional images that can be shown on a computer screen. This can be done in...

The computer revolution has been going on long enough now that no one attending these meetings would be surprised to hear a discussion of any one of several forms of computer-generated "reality." A few years ago the phrase was walk-through or fly-by for a computer-simulated journey through space. Today the phrase is virtual reality a term which conjures up thoughts of versions of reality whethe...

This paper describes some preliminary results of our ongoing project on digital mirror interfaces. Regular mirrors reflect ambient light from the scene towards the observer. Digital mirrors capture the ambient light with a camera, extract information about the scene, and display appropriate information to the user, combining real-time computer vision systems with realistic computer graphics. We...

The objective of this study was to compare the effects of using a forearm or wrist support on muscular load in the forearm and neck–shoulder region during work with a computer mouse. Fourteen 35to 50-year-old healthy women who worked with a video display unit for at least 4 hr a day in an office and who also used a computer mouse for at least 2 hr a day participated in this experimental study. ...

Based on the limitation of the traditional alarming system, we propose a monitor system based on GSM short message for unmanned computer room. Firstly, we design the monitor system structure. Secondly, we combine the dynamic and static information and proposed an information Publish-Subscribe platform. Finally, this platform supports message ordered by nodes, distributed information synchroniza...

BACKGROUND Adverse drug events (ADEs) are both common and costly. Most hospitals identify ADEs using spontaneous reporting, but this approach lacks sensitivity; chart review identifies more events but is expensive. Computer-based approaches to ADE identification appear promising, but they have not been directly compared with chart review and they are not widely used. OBJECTIVES To develop a c...

Although constrained by history, schedule, and hardware to triviality when compared to modem operating systems, the North American 701 Monitor was arguably the first operating system to be in operation. Installed in December 1955, the North American 701 Monitor was developed as a prototype monitor to extract more utilization from overburdened IBM 701'8 and pilot test the operating system concep...

In previous work we have proposed a distributed security logic for authorizing code. To gain assurance about the correctness of the implementation of our system, we now present a series of security logics of increasing expressive power leading up to our logic. We encode each logic in Coq, develop an algorithm for deciding queries, and prove properties about the algorithm in Coq. By using Coq’s ...