High dynamic range (HDR) rendering is becoming an increasingly popular technique in computer graphics. Its challenge consists in mapping the resulting images’ large range of intensities to the much narrower ones of the display devices in a way that preserves contrastive details. Local tone mapping operators effectively perform the required compression by adapting the luminance level of each pix...

Achievement of quality in software design, while never easy, is made more difficult by the inherent complexity of hard real-time (HRT) design. Furthermore, timing requirements in HRT are by nature functional requirements, since system correctness depends on their fulfillment. Whereas the correctness dependence of the time imposes considering timing requirements from the early stages of the prod...

The main factor limiting the range extension of the Real Time Kinematics technique beyond few tens of kilometers is the differential ionospheric correction between the roving and the nearest reference GNSS station. Such ionospheric correction impedes the real-time ambiguity fixing, and the corresponding accurate navigation at the sub-decimeter level. In this paper, the authors present the recen...

personnel and the traveling public. These two groups have long since needed one cohesive place by which to visualize, analyze, and interact with all of these data. Twodimensional “traffic maps” and more sophisticated geographic information system (GIS) databases have become popular means to visualize much of the data; however, typically these systems are capable of only two-dimensional data rep...

The computation of soft shadows created by area light sources is a well-known problem in computer graphics. Due to the complexity of the problem, soft shadows commonly are generated only for images that are rendered in an off-line process. In interactive virtual environments, where images have to be computed in real time, soft shadows are mostly replaced by hard shadows as this takes much less ...

We present a real-time method for detecting and removing boundary overextension, which is the fattening of foreground objects often observed in area-based stereo. Global methods such as graph-cuts are much slower than local methods, thus boundary overextension is still a major problem for realtime stereo. Starting with the depth discontinuity curves, the boundaries of the overextension regions ...

Results of this study indicate that correlations between real-time ultrasound loin depth and carcass loin muscle area and between carcass loin depth and carcass loin muscle area are high. However, using carcass loin muscle area as the true value, the standard error of prediction for real-time ultrasound loin muscle area was lower than those for loin muscle areas predicted from either real-time ...

technical terminology has a significant role in translation of technical or scientific texts. unfortunately, most of research in this area has not perceived the urgent need for a model to analyze or shown how translate technical or scientific terminology. in this paper, the researcher attempts to designs a workable model for translation of technical or scientific terminology. the major aim of t...

This article is a brief exposure of the process approach to a newly emerging area called "discrete event systems" in control theory and summarizes some of the recent developments in this area. Discrete event systems is an area of research that is developing within the interstices of computer, control and communication sciences. The basic direction of research addresses issues in the analysis an...