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Design and Cost Multi-Objective Optimization of Small-Scale LNG Carriers using the Value Engineering Approach

Lathif Prasetyo Wibisana, Muhammad Arif Budiyanto
2021 International Journal of Technology  
Indonesia Cost reduction idea; removing unnecessary appendages Hull component Cost pareto chart Result & Discussion Multi-objective shape Optimization Constrain and variable set Lathif Prasetyo, et  ...  modifying the ship's L/B ratio, it can influence reducing the total ship resistance • to sharpen the results of the optimization of the shape of the hull ratio in the future, more comprehensive methods  ... 
doi:10.14716/ijtech.v12i6.5192 fatcat:zfog4nyzyvcvxdsu6gqzvez65a

Multi-View Silhouette and Depth Decomposition for High Resolution 3D Object Representation [article]

Edward Smith, Scott Fujimoto, David Meger
2018 arXiv   pre-print
We consider the problem of scaling deep generative shape models to high-resolution.  ...  This allows us to generate high-resolution objects with more efficient scaling than methods which work directly in 3D.  ...  Introduction The 3D shape of an object is a combination of countless physical elements that range in scale from gross structure and topology to minute textures endowed by the material of each surface.  ... 
arXiv:1802.09987v3 fatcat:qj27gfxsxnawrozxhfk77beada


Mathias Frisch, Ricardo Langner, Raimund Dachselt
2011 Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces - ITS '11  
The system provides a consistent set of multi-touch tools and gestures for aligning and distributing graphical objects on interactive surfaces.  ...  (b) Guides of arbitrary shape can be sketched with the pen. Crossed objects are bound automatically. (c) Align-by-Crossing: Grouped objects can be aligned by crossing one of them with the pen.  ...  (c) Nonuniform scaling of bound objects by rotating guides. Figure 7 : 7 Constraining combination: (a) Object 2 is bound to both guides.  ... 
doi:10.1145/2076354.2076356 dblp:conf/tabletop/FrischLD11 fatcat:667pcqhe6zb2hksjks5ct2vrv4

3D Shape Modelling through a Constrained Estimation of a Bicubic B-spline Surface

X. Shen, M. Spann
1998 Procedings of the British Machine Vision Conference 1998  
Extraction of object shape is achieved through a hierarchical surface fitting by exploiting the multi-scale representation of the model.  ...  This paper presents a new method to extract the 3D shape of objects from 3D gray level images using a bicubic B-spline surface model.  ...  Acknowledgement This work was funded by the EPSRC IMV initiative (grant of GR/K 95987) and carried out in collaboration with Shell KSEPL.  ... 
doi:10.5244/c.12.28 dblp:conf/bmvc/ShenS98 fatcat:yqrykpaqxvb5plvey2garlxglq

Shape and motion under varying illumination: unifying structure from motion, photometric stereo, and multiview stereo

Li Zhang, Curless, Hertzmann, Seitz
2003 Proceedings Ninth IEEE International Conference on Computer Vision  
of both textured and texture-less surfaces.  ...  This paper presents an algorithm for computing optical flow, shape, motion, lighting, and albedo from an image sequence of a rigidly-moving Lambertian object under distant illumination.  ...  Uncertainties for shape, motion, and light The subspace-constrained minimization formulation of Eq. (11) involves several sets of unknowns: surface positions, normals, lighting, and motion.  ... 
doi:10.1109/iccv.2003.1238405 dblp:conf/iccv/ZhangCHS03 fatcat:no5wacbzbjek7j3vdni3j77skq

Fast high-resolution appearance editing using superimposed projections

Daniel G. Aliaga, Yu Hong Yeung, Alvin Law, Behzad Sajadi, Aditi Majumder
2012 ACM Transactions on Graphics  
Second, decomposition of the target appearance into base and scale images enables fast swapping of appearances on the object by requiring the constrained optimization to be computed only once per object  ...  We present a system that superimposes multiple projections onto an object of arbitrary shape and color to produce high resolution appearance changes.  ...  of arbitrary shape.  ... 
doi:10.1145/2159516.2159518 fatcat:jtsd2vswmneebpu4ktxkteo4mm

Rock & rails

Daniel Wigdor, Hrvoje Benko, John Pella, Jarrod Lombardo, Sarah Williams
2011 Proceedings of the 2011 annual conference on Human factors in computing systems - CHI '11  
We present a set of interactions, called Rock & Rails, that augment existing direct touch manipulations with shape-based gestures, thus providing on-demand gain control, occlusion avoidance, and separation  ...  of constraints in 2D manipulation tasks.  ...  We also thank Brad Carpenter and the Surface team for their support with the project.  ... 
doi:10.1145/1978942.1979173 dblp:conf/chi/WigdorBPLW11 fatcat:xmomubwmnvaktfjajugygwreta

Shape and View Independent Reflectance Map from Multiple Views

Tianli Yu, Ning Xu, Narendra Ahuja
2006 International Journal of Computer Vision  
We represent object shape using surface triangulation.  ...  We consider the problem of estimating the 3D shape and reflectance properties of an object made of a single material from a calibrated set of multiple views.  ...  Suppose the surface of the object is S(V ), where V is the parameter vector of the object shape.  ... 
doi:10.1007/s11263-006-9373-8 fatcat:dxd2m3jfobbi5cvfh5ny7jtmhq

Shape and View Independent Reflectance Map from Multiple Views [chapter]

Tianli Yu, Ning Xu, Narendra Ahuja
2004 Lecture Notes in Computer Science  
We represent object shape using surface triangulation.  ...  We consider the problem of estimating the 3D shape and reflectance properties of an object made of a single material from a calibrated set of multiple views.  ...  Suppose the surface of the object is S(V ), where V is the parameter vector of the object shape.  ... 
doi:10.1007/978-3-540-24673-2_48 fatcat:bv7dsh6ihjb23asvwfmdflqeqq

A-expansion for multiple "hedgehog" shapes [article]

Hossam Isack, Yuri Boykov, Olga Veksler
2016 arXiv   pre-print
Each "hedgehog" shape has its surface normals constrained by some vector field, e.g. gradients of a distance transform for user scribbles.  ...  We show that a-expansion moves are submodular for our multi-shape constraints.  ...  Fig14 shows a synthetic example of fast chancing vector field orientations and how the edge constraints pruning alleviates the over-constraining problem.  ... 
arXiv:1602.01006v1 fatcat:aqsgrteznzauxlqecdmqf4llga

Mockup Builder: 3D modeling on and above the surface

Bruno R. De Araújo, Géry Casiez, Joaquim A. Jorge, Martin Hachet
2013 Computers & graphics  
Our approach combines both hand and finger tracking in the space on and above a multi-touch surface.  ...  This combination brings forth an alternative design environment where users can seamlessly switch between interacting on the surface or above it to leverage the benefit of both interaction spaces.  ...  [28] . 3D objects are constrained to movements along the plane parallel to the multi-touch surface.  ... 
doi:10.1016/j.cag.2012.12.005 fatcat:ysthwbklmzdgbpl7pars6wwj2q

Study on UAV Image Extraction of Surface Crack Information Technology in Goaf

Shihua Geng, Wenjun Zhang, Shuojuan Tian, Yingkun Zi, Junyi Miao, Rui Shen
2022 OALib  
The problem of extracting surface crack information in mining area is studied. The unmanned aerial vehicle (UAV) image is used as the data source for multi-scale segmentation.  ...  The rule set is constructed based on the spectral and shape features of surface cracks.  ...  Face to Face Feature Extraction of Surface Fracture Image Multiscale Segmentation In multi-scale image segmentation, scale is the threshold of the minimum heterogeneity of polygonal objects.  ... 
doi:10.4236/oalib.1108675 fatcat:myc4tlyovzbx5ljweq7mrg34gi

An automated framework for 3D serous pigment epithelium detachment segmentation in SD-OCT images

Zhuli Sun, Haoyu Chen, Fei Shi, Lirong Wang, Weifang Zhu, Dehui Xiang, Chenglin Yan, Liang Li, Xinjian Chen
2016 Scientific Reports  
The proposed framework consists of four main steps: first, a multi-scale graph search method is applied to segment abnormal retinal layers; second, an effective AdaBoost method is applied to refine the  ...  initial segmented regions based on 62 extracted features; third, a shape-constrained graph cut method is applied to segment serous PED, in which the foreground and background seeds are obtained automatically  ...  In this paper, we propose an automated framework to segment serous PED by effectively combining the multi-scale graph search, shape-constrained graph cut and mathematical morphology algorithm.  ... 
doi:10.1038/srep21739 pmid:26899236 pmcid:PMC4761989 fatcat:mmy76ghj5jelrh6lxrxt5jq2l4

Normal Estimation for 3D Point Clouds via Local Plane Constraint and Multi-scale Selection [article]

Jun Zhou, Hua Huang, Bin Liu, Xiuping Liu
2019 arXiv   pre-print
Then we use multi-task optimization to train the normal estimation and local plane classification tasks simultaneously.Also, to integrate the advantages of multi-scale results, a scale selection strategy  ...  Compared to some state-of-the-art surface normal estimators, our method is robust to noise and can achieve competitive results.  ...  . • The experiment shows outperformance results in single-scale and multi-scale compared some state-of-the-art surface normal estimators.  ... 
arXiv:1910.08537v1 fatcat:7v3rh6bakfby3najpycalzovfq

A convex framework for image segmentation with moment constraints

Maria Klodt, Daniel Cremers
2011 2011 International Conference on Computer Vision  
In this paper, we will show that shape priors in terms of moment constraints can be imposed within the convex optimization framework, since they give rise to convex constraints.  ...  In particular, the lowerorder moments correspond to the overall volume, the centroid, and the variance or covariance of the shape and can be easily imposed in interactive segmentation methods.  ...  Note that this allows, in particular, to constrain the scale σ of the object, because: σ 2 = (x − µ) 2 u dx u dx = tr Ω (x − µ)(x − µ) u dx u dx .  ... 
doi:10.1109/iccv.2011.6126502 dblp:conf/iccv/KlodtC11 fatcat:5s5baj57ovchzjmxkmupqj34za
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