Results 271 to 280 of about 290,331 (304)

Efficient Volumetric PolyCube‐Map Construction

Computer Graphics Forum, 2016
AbstractPolyCubes provide compact representations for closed complex shapes and are essential to many computer graphics applications. Existing automatic PolyCube construction methods usually suffer from poor quality or time‐consuming computation. In this paper, we provide a highly efficient method to compute volumetric PolyCube‐maps.
Xiao-Ming Fu 0001, Chong-Yang Bai, Yang Liu 0014   +2 more
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A Regression Model for Volumetric Efficiency

SAE Technical Paper Series, 1986
<div class="htmlview paragraph">A relationship between volumetric efficiency and engine operating conditions is presented. The effect of such factors as the air inlet temperature, engine speed, heat transfer, residual gases, intake and exhaust manifold pressure, and the compression ratio on the prediction of volumetric efficiency are considered ...
Hamid B. Servati, Robert G. DeLosh
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Efficient volumetric estimation from plenoptic data

SPIE Proceedings, 2013
The commercial release of the Lytro camera, and greater availability of plenoptic imaging systems in general, have given the image processing community cost-effective tools for light-field imaging. While this data is most commonly used to generate planar images at arbitrary focal depths, reconstruction of volumetric fields is also possible.
Paul Anglin, Stanley J. Reeves, Brian S. Thurow   +2 more
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Efficient volumetric ray casting for isosurface rendering

Computers & Graphics, 2000
Abstract While volume rendering is becoming more widely used in medical applications, it is still difficult to generate a good-quality image interactively without expensive hardware when the size of the dataset is quite large. For interactive rendering of a large dataset, we present an acceleration method, image–space bounding surface. Using an image–
Jae Jeong Choi, Byeong-Seok Shin, Yeong-Gil Shin, Kevin Cleary   +3 more
openaire   +1 more source

An Efficient and Adaptive Threshold of Volumetric Segmentation

2015
Image segmentation plays a crucial role in effective understanding of digital images. Among the many approaches in performing image segmentation, graph based approach is gaining popularity primarily due to its ability in reflecting global image properties.
Dumitru Dan Burdescu, Marius Brezovan, Liana Stanescu, Cosmin Stoica Spahiu, Florin Slabu   +4 more
openaire   +1 more source

Refrigerator Performance: An Investigation into Volumetric Efficiency

Proceedings of the Institution of Mechanical Engineers, 1940
The paper describes experiments carried out on an ammonia-vapour compression refrigerator, with the object of investigating the conditions affecting the volumetric efficiency of the compressor. The most important part of the investigation deals with the effect of the condition of the vapour at the suction valve, over a range from about 0·75 dry to 45 ...
E. Giffen, E. F. Newley
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THE VOLUMETRIC EFFICIENCY OF FOUR-STROKE ENGINES

SAE Technical Paper Series, 1952
<div class="section abstract"><div class="htmlview paragraph">PARAMOUNT among the problems relating to the efficiency of the internal-combustion engine is that of breathing capacity, or air consumption. Considering volumetric efficiency to be the most valuable parameter in an analytical or experimental approach to this problem, the authors ...
J.C. Livengood, A.R. Rogowski, C.F. Taylor   +2 more
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Efficient 2D Video Coding of Volumetric Video Data

2018 7th European Workshop on Visual Information Processing (EUVIP), 2018
Point clouds for immersive media technology have received substantial interest in the recent years. Such representation of 3D scenery provides freedom of movement for the viewer. But transmitting or storing such content requires large amount of data and it is not feasible on today's network technology.
Nahid Sheikhi-Pour, Sebastian Schwarz, Vinod Kumar Malamal Vadakital, Moncef Gabbouj   +3 more
openaire   +1 more source

Efficient Graph-Based Volumetric Segmentation

2015
The emergence and increasing importance of digital society increased the role of software applications in smart environments. Associated with these paradigms are a multitude of applications that generate and require analysis of massive volumes of diverse, heterogeneous, complex, and distributed data.
Dumitru Dan Burdescu, Marius Brezovan, Liana Stanescu, Cosmin Stoica Spahiu   +3 more
openaire   +1 more source

An Efficient Morphological Active Surface Model for Volumetric Image Segmentation

2009
Using tools from multi-scale morphology, we reformulate a region-based active-contour model using a minimum-variance criterion. Experimental results of 3D data show that our discrete model achieves similar segmentation quality as the continuous model based on the level-set framework, while being two orders of magnitude faster than optimized ...
Jalba, A.C., Roerdink, J.B.T.M.
openaire   +1 more source