نتایج جستجو برای: depth estimation

تعداد نتایج: 417410  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1391

today, scouring is one of the important topics in the river and coastal engineering so that the most destruction in the bridges is occurred due to this phenomenon. whereas the bridges are assumed as the most important connecting structures in the communications roads in the country and their importance is doubled while floodwater, thus exact design and maintenance thereof is very crucial. f...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1391

in this study, scour of mashkid bridge pier located in mashkid river of saravan county has been studied and to measure the scour rate, the numerical model hec-ras 4.0 has been used. upon selection of mashkid river as the case study and whereas the studied zone is important with respect to the climatic conditions and showery monsoon raining and flowing the great and destructive floodwaters, ther...

Journal: :فیزیک زمین و فضا 0
naeim mousavi ph.d. candidate, institute of geophysics, university of tehran, tehran, iran vahid ebrahimzadeh ardestani professor, institute of geophysics, university of tehran, tehran, iran

the s-transform has widely been used in the analysis of non-stationary time series. a simple method to obtain depth estimates of gravity field sources is introduced in this study. we have developed a new method based on the spectral characteristics of downward continuation to estimate depth of structures. this calculation procedure is based on replacement of the fourier transform with the s-tra...

Journal: :Lecture Notes in Computer Science 2022

AbstractWe propose a novel algorithm for monocular depth estimation that decomposes metric map into normalized and scale features. The proposed network is composed of shared encoder three decoders, called G-Net, N-Net, M-Net, which estimate gradient maps, map, respectively. M-Net learns to depths more accurately using relative features extracted by G-Net N-Net. has the advantage it can use data...

2013
Anders Glent Buch Jeppe Barsøe Jessen Dirk Kraft Thiusius Rajeeth Savarimuthu Norbert Krüger

We propose a method for the extraction of complete and rich symbolic line segments in 3D based on RGB-D data. Edges are detected by combining cues from the RGB image and the aligned depth map. 3D line segments are then reconstructed by back-projecting 2D line segments and intersecting this with local surface patches computed from the 3D point cloud. Different edge types are classified using the...

Journal: :ACM Transactions on Graphics 2020

Journal: :Bioscience Biotechnology Research Communications 2020

Journal: :IEEE Transactions on Circuits and Systems for Video Technology 2020

2002
Fabian Ernst Piotr Wilinski Cornelius W. A. M. van Overveld

For 3-D video applications, dense depth maps are required. We present a segment-based structure-from-motion technique. After image segmentation, we estimate the motion of each segment. With knowledge of the camera motion, this can be translated into depth. The optimal depth is found by minimizing a suitable error norm, which can handle occlusions as well. This method combines the advantages of ...

1998
Simon Baker Richard Szeliski P. Anandan

We propose a framework for extracting structure from stereo which represents the scene as a collection of approximately planar layers. Each layer consists of an explicit 3D plane equation, a colored image with per-pixel opacity (a sprite), and a per-pixel depth offset relative to the plane. Initial estimates of the layers are recovered using techniques taken from parametric motion estimation. T...

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