Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 20 for “"Relative Depth"”.
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Incipient Motion Under Shallow Flow Conditions
… were conducted to investigate the effect of low relative depth and high Froude number on the dimensionless critical shear stress (Shields parameter). Spherical particles of four different densities and an 8mm diameter were used as movable test material. The relative depth ranged from 2 to 12 and …
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Facet model optic flow and rigid body motion
… 3D motion parameters and surface structure (relative depth) from the computed optic flow field. Finally we discuss a technique for the image segmentation based on the multi-object motion using both optic flow and its time derivative. The facet model technique computes optic flow locally by …
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Determining Hydraulic Characteristics in Close Proximity of Hymenocallis coronaria within the Flint River Basin, Georgia
… H. coronaria locations, then calculated the relative depth at each point using USGS water surface level data from a nearby gage at Thomaston, Georgia. I found a significant correlation between relative depth of the river and the probability of H. coronaria occurrence. As relative depth …
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Depth From Defocused Motion
Motion in depth and/or zooming causes defocus blur. This work presents a solution to the problem of using defocus blur and optical flow information to compute depth at points that defocus when they move. We first formulate a novel algorithm which recovers defocus blur and affine parameters …
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Pre-trial detention under contemporary European human rights law
… of pre-trial detention have been considered in relative depth, both internationally and comparatively. Consequently, the adequacy of the ECtHR decisions in its quest to safeguard pre-trial detention rights has been critically examined, and some suggestions have been proposed in order to ensure …
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Effects of depth cues on depth judgements using a field-sequential stereoscopic CRT display
… believed that stereopsis provides a potent depth information cue, numerous monocular cues exist which may augment, detract from, or even supplant stereopsis. Unfortunately, few guidelines or well-controlled analyses on the use of depth cues are available to direct engineering implementations …
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Depth map recovery from videos
The depth map of a video is a very important piece of information. Recovering the depth map of a video expands a 2D video into its 3rd dimension, and creates new possibilities, such as, object insertion, conversion to 3D, shallow depth of field simulation. In this work, we introduce our approach of …
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Generative modeling of dynamic visual scenes
… according to a Z-order that specifies their relative depth-order. To describe these layers and their dynamic changes, three major components are incorporated: (1) An appearance model describes the generative process of the pixel values of a video layer. This model, via the combination of a …
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Human and environmental influences on the distribution and abundance of arapaima in river floodplains of the Lower Amazon
… season floodplain lakes demonstrates that lake depth, relative depth, conductivity, and transparency were significantly related to the probability of arapaima presence at individual locations within lakes. Further, the study revealed that smaller arapaima were more likely to be found near …
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The Topography and Flow of the Antarctic Ice Sheet
… with distance from ice divides and that the relative depth of the zone of maximum shear fluctuates in response to topographic and glaciological constraints. Driving stress patterns have been associated with characteristic glaciological regimes and have suggested a qualitative difference …
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Analysis and interpretation of clustered microseismicity at geothermal and petroleum reservoirs
… on localized patches of the faults. Due to the relative depth of this swarm, compared to reservoir depths, this cluster was attributed to the natural geodynamics of this complex area. Analysis of a set of events from the LAGO seismogenic zone in the Larderello Geothermal field again showed a …
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Using Texture Features To Perform Depth Estimation
… need in real world applications for estimating depth through electronic means without human intervention. There are many methods in the field which help in autonomously finding depth measurements. Some of which are using LiDAR, Radar, etc. One of the most researched topic in the field of depth …
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Development and Testing of a Capacitor Probe to Detect Deterioration in Portland Cement Concrete
… air contents, two void thicknesses, and two void depths (from the specimen's surface). Two specimens were cast for each parameter and their results were averaged. The dielectric properties over curing time were measured for all specimens, using the capacitor probe and the parallel-plate capacitor. …
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Detection and elimination of rock face vegetation from terrestrial LIDAR data using the virtual articulating conical probe algorithm
… Also, the underlying surface topography is relatively smooth compared to the overlying vegetation which has a high spatial frequency. On the other hand, with most TLS systems, the width of the lidar laser beam is very small, and the data acquisition hardware supports only first-return …
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Sailors, Soldiers and Statesmen: The Conceptual Context of British Naval and Military Strategy, 1902-1914
… sources of strategic advice. Consequently, the relative depth and coherence of these foundations are important factors in shaping options presented for political decision. These foundations comprise not only the body of doctrine that articulates the ways in which armed force can be applied most …
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Shape Estimation under General Reflectance and Transparency
… each pixel and show how it relates to the source-relative depth of the surface. Next we show how calibration relating the camera and source planes allows for robustness to specular objects and recovery of 3D surface points.
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Paediatric regional anaesthetic procedures: clinical anatomy competence, pitfalls and complications
… procedure, especially knowledge regarding the relative depth or specific positions of certain key structures in paediatric patients, as it is known that the anatomy of children differ to a greater or lesser degree from that of adults. Precise information on epidemiology and morbidity of …
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Determining Three-Dimensional Motion and Structure of a Rigid Body Using Point and Straight Line Correspondences (Stereo, Graphics, Vector)
… Object structure can be determined as a map of relative depths of 3D points/lines. From point correspondences (PCs) and line correspondences (LCs) (which are assumed to be given), equations in terms of the 3D motion parameters are obtained and solved. A geometrical approach is taken, by using …
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Automatic 2D-to-3D conversion of single low depth-of-field images
… disparity image pairs from single 2D low depth-of-field (LDOF) images. Initially a depth map is produced through the assignment of depth to every delineated object and region in the image. Subsequently the left and right disparity images are produced through depth imagebased rendering …
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Velocity distribution prediction in rectangular and compound channels under smooth and rough flow conditions
… ratio (Ar) in rectangular channels and to the relative depth (Dr) in compound channels. The relationships for the velocity distribution coefficients (α or β) proposed in the present study can be used to describe the non-uniformity of the velocity distributions and solve engineering flow …