Variable-resolution display techniques present visual information in a display using more than one resolution. For example, gaze-contingent variable-resolution displays allocate computational resources for image generation preferentially to the area around the center of gaze, where visual sensitivity to detail is the greatest. Using such displays reduces the amount of computational resources required as compared with traditional uniform-resolution displays. The theoretical benefits, implementational issues, and behavioral consequences of variable-resolution displays are reviewed. A mathematical analysis of computational efficiency for a two-region variable-resolution display is conducted. The results are discussed in relation to applications that are limited by computational resources, such as virtual reality, and applications that are limited by bandwidth, such as internet image transmission. The potential for variable-resolution display techniques as a viable future technology is discussed.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1518/0018720024497015 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Exploring changes of precipitation extremes under climate change through global variable-resolution modeling.
Sci Bull (Beijing)
January 2024
State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081, China; 2035 Future Laboratory, PIESAT Information Technology Co., Ltd., Beijing 100105, China.
Understanding the responses of precipitation extremes to global climate change remains limited owing to their poor representations in models and complicated interactions with multi-scale systems. Here we take the record-breaking precipitation over China in 2021 as an example, and study its changes under three different climate scenarios through a developed pseudo-global-warming (PGW) experimental framework with 60-3 km variable-resolution global ensemble modeling. Compared to the present climate, the precipitation extreme under a warmer (cooler) climate increased (decreased) in intensity, coverage, and total amount at a range of 24.
View Article and Find Full Text PDFComputing stability effects of mutations in human superoxide dismutase 1.
J Phys Chem B
February 2014
DTU Chemistry, Technical University of Denmark, DK 2800 Kongens Lyngby, Denmark.
Protein stability is affected in several diseases and is of substantial interest in efforts to correlate genotypes to phenotypes. Superoxide dismutase 1 (SOD1) is a suitable test case for such correlations due to its abundance, stability, available crystal structures and thermochemical data, and physiological importance. In this work, stability changes of SOD1 mutations were computed with five methods, CUPSAT, I-Mutant2.
View Article and Find Full Text PDFOptimal sampling of visual information for lightness judgments.
Proc Natl Acad Sci U S A
July 2013
Department of Psychology, Justus Liebig University Giessen, D-35394 Giessen, Germany.
The variable resolution and limited processing capacity of the human visual system requires us to sample the world with eye movements and attentive processes. Here we show that where observers look can strongly modulate their reports of simple surface attributes, such as lightness. When observers matched the color of natural objects they based their judgments on the brightest parts of the objects; at the same time, they tended to fixate points with above-average luminance.
View Article and Find Full Text PDFObject-related regularities are processed automatically: evidence from the visual mismatch negativity.
Front Hum Neurosci
June 2013
Institut für Psychologie, Universität Leipzig Leipzig, Germany.
One of the most challenging tasks of our visual systems is to structure and integrate the enormous amount of incoming information into distinct coherent objects. It is an ongoing debate whether or not the formation of visual objects requires attention. Implicit behavioral measures suggest that object formation can occur for task-irrelevant and unattended visual stimuli.
View Article and Find Full Text PDFImpact of lower- vs. upper-hemifield presentation on automatic colour-deviance detection: a visual mismatch negativity study.
Brain Res
September 2012
Institut für Psychologie, Universität Leipzig, Seeburgstraße 14-20, D-04103 Leipzig, Germany.
The automatic processing of deviances from the temporal context of the visual environment has become an important topic in visual cognitive sciences, which is often investigated using the visual mismatch negativity (vMMN). This event-related potential (ERP) component is elicited by an irregular stimulus (e.g.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!