نتایج جستجو برای: 3d seam modelling

تعداد نتایج: 347172  

2007
Wenzeng Zhang Qiang Chen Guoxian Zhang Zhenguo Sun Dong Du

Laser welding has a quite high demand on trajectory accuracy of articulated robot. To improve dynamic trajectory accuracy of articulated robots for laser welding, a novel 3D seam tracking method is proposed based on stereo visual feedback control. The method constructs a visual feedback control system with two convergent cameras mounted at the end of industrial robot. A tool coordinate system i...

Delineation of oxide and sulfide zones in mineral deposits, especially in gold deposits, is one of the most essential steps in an exploration project that has been traditionally carried out using the drilling results. Since in most mineral exploration projects there is a limited drilling dataset, application of geophysical data can reduce the error in delineation of the sulfide and oxide zones....

Journal: :Journal of Physics: Conference Series 2021

Journal: :I. J. Robotics Res. 2003
Jonathan M. Roberts Graeme J. Winstanley Peter I. Corke

In this paper we describe the development of a three-dimensional (3D) imaging system for a 3500 tonne mining machine (dragline). Draglines are large walking cranes used for removing the dirt that covers a coal seam. Our group has been developing a dragline swing automation system since 1994. The system so far has been “blind” to its external environment. The work presented in this paper attempt...

There is a growing demand for mapping and 3D modelling of buried objects such as pipelines, agricultural hetitage, landmines and other buried objects. Usually, large scale and high resolution maps from these objects are needed. Manually map generation and modeling of these objects are cost and time consuming and is dependent on lots of resources. Therefore, automating the subsurface mapping and...

Journal: :Animal reproduction science 2005
Sue M McDonnell Amy L Hinze

Periodic spontaneous erection and penile movements known as masturbation (SEAM) occur normally at approximately 90 min intervals in awake equids. SEAM in horses has traditionally been misunderstood by many horsemen as aberrant behavior that should be eliminated. Accordingly, it is not uncommon for trainers of performance stallions or managers of breeding stallions to punish SEAM in an attempt t...

2008
František STANĚK Josef HONĚK

This paper deals with the methodology of modelling the Dubňany lignite seam base and its tectonic failure. Tectonic pattern of the Vienna Basin has been subject of many studies. Opinions on its origin have been developing. Coal seams in the South Moravian Lignite Coalfield were modelled under the project of the example modern evaluation of the coal deposit. Designed software with application of...

2009
Kristine Slot René Truelsen Jon Sporring

An extension of 2D Seam Carving [Avidan and Shamir, 2007] is presented, which allows for automatic resizing the duration of a video without interfering with the velocities of the objects in the scene. We identify a set of pixels across different video frames to be either removed or duplicated in a seamless manner by analyzing 3D space-time sheets in the videos. Results are presented on several ...

2011
Atsushi Umakatsu Hiroyuki Yasuhara Tomohiro Mashita Kiyoshi Kiyokawa Haruo Takemura

We have been studying an in-situ 3D modeling and authoring system, AR Diorama. In the AR Diorama system, a user is able to reconstruct a 3D model of a real object of concern and describe behaviors of the model by stroke input. In this article, we will introduce two ongoing studies on interactive 3D reconstruction techniques. First technique is feature-based. Natural feature points are first ext...

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