نتایج جستجو برای: video displays

تعداد نتایج: 212687  

2004
Markus G. Kuhn

Electromagnetic eavesdropping of computer displays – first demonstrated to the general public by van Eck in 1985 – is not restricted to cathode-ray tubes. Modern flat-panel displays can be at least as vulnerable. They are equally driven by repetitive video signals in frequency ranges where even shielded cables leak detectable radio waves into the environment. Nearby eavesdroppers can pick up su...

Journal: :Journal of the Optical Society of America. A, Optics and image science 1990
A B Poirson B A Wandell

When an observer's ability to discriminate colored objects is estimated from the variability in color matches, the observer inspects adjacent visual fields carefully and makes considered judgments. Color discrimination does not always take place under such viewing conditions. When color video displays are used in time-critical applications (e.g., head-up displays, video control panels), the obs...

Journal: :Journal of neuroscience methods 2003
Xiangrui Li Zhong-Lin Lu Pengjing Xu Jianzhong Jin Yifeng Zhou

Display systems based on conventional computer graphics cards are capable of generating images with about 8-bit luminance resolution. However, most vision experiments require more than 12 bits of luminance resolution. Pelli and Zhang [Spatial Vis. 10 (1997) 443] described a video attenuator for generating high luminance resolution displays on a monochrome monitor, or for driving just the green ...

2003
Stefan Agamanolis

How can we design displays that foster a sense of presence and awareness... that enhance a sense of community and togetherness... that enable human bonds to grow and flourish? Using five prototypes from the Human Connectedness research group at Media Lab Europe as a context for reflection, this chapter attempts to assemble a framework of questions and strategies for designers to consider when w...

Journal: :Optics express 2006
Hong Hua Prasanna Krishnaswamy Jannick P Rolland

Head pose is utilized to approximate a user's line-of-sight for real-time image rendering and interaction in most of the 3D visualization applications using head-mounted displays (HMD). The eye often reaches an object of interest before the completion of most head movements. It is highly desirable to integrate eye-tracking capability into HMDs in various applications. While the added complexity...

2000
Yong-Sheng Chen Chan-Hung Su Jiun-Hung Chen Chu-Song Chen Yi-Ping Hung Chiou-Shann Fuh

An autostereoscopic display system can provide great enjoyment of stereo visualization without the uncomfortable and inconvenient drawbacks of wearing stereo glasses or HMD. In order to render the stereo video with respect to the user’s view point and to accurately project stereo video onto the eyes of the user, who is allowed to move around freely, the left and right eye positions of the user ...

2017
Wutthigrai Boonsuk

A 360-degree video becomes necessary in applications ranging from surveillance to virtual reality. This thesis focuses on developing an interface for a system such as mobile surveillance that integrates 360-degree video feeds for remote navigation and observation in unfamiliar environments. An experiment evaluated the effectiveness of three 360-degree view user interfaces to identify the necess...

2011
Madeline B. Girard Michael M. Kasumovic Damian O. Elias

The peacock spider, Maratus volans, has one of the most elaborate courtship displays in arthropods. Using regular and high-speed video segments captured in the lab, we provide detailed descriptions of complete male courtship dances. As research on jumping spiders has demonstrated that males of some species produce vibrations concurrently with visual displays, we also used laser vibrometry to un...

2015
Fahd Bin Malek Newaz Aslak Wegner Eide Antoine Pultier

This paper explores the added-value of using interactive head-mounted displays to support command and control of first responders during emergency response. Specifically, it describes and evaluates a prototype system that makes use of Google Glass to enable in-field receiving of information from a command center, as well as in-field navigation and video streaming. The viability and usefulness o...

Journal: :Nature materials 2004
Gerwin H Gelinck H Edzer A Huitema Erik van Veenendaal Eugenio Cantatore Laurens Schrijnemakers Jan B P H van der Putten Tom C T Geuns Monique Beenhakkers Jacobus B Giesbers Bart-Hendrik Huisman Eduard J Meijer Estrella Mena Benito Fred J Touwslager Albert W Marsman Bas J E van Rens Dago M de Leeuw

At present, flexible displays are an important focus of research. Further development of large, flexible displays requires a cost-effective manufacturing process for the active-matrix backplane, which contains one transistor per pixel. One way to further reduce costs is to integrate (part of) the display drive circuitry, such as row shift registers, directly on the display substrate. Here, we d...

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