Results 91 to 100 of about 338,843 (200)

Multi-Scale 3D Scene Flow from Binocular Stereo Sequences [PDF]

open access: yes, 2007
Scene flow methods estimate the three-dimensional motion field for points in the world, using multi-camera video data. Such methods combine multi-view reconstruction with motion estimation.
Li, Rui, Sclaroff, Stan
core   +2 more sources

UV cross-linkable hybrid resins for additive manufacturing to achieve high performance and body-temperature programmable shape memory effect

open access: yesVirtual and Physical Prototyping
Since the introduction of 4D printing in 2012, shape memory hybrids (SMHs) have emerged as a versatile solution for tailoring thermomechanical properties.
Tao Xi Wang   +9 more
doaj   +1 more source

Construction of smart propellant with multi-morphologies

open access: yesDefence Technology
Smart materials, which exhibit shape memory behavior in response to external stimuli, have shown great potential for use in biomedical applications. In this study, an energetic composite was fabricated using a UV-assisted DIW 3D printing technique and a ...
Weitao Yang   +6 more
doaj   +1 more source

Multi-view passive 3D face acquisition device [PDF]

open access: yes, 2008
Approaches to acquisition of 3D facial data include laser scanners, structured light devices and (passive) stereo vision. The laser scanner and structured light methods allow accurate reconstruction of the 3D surface but strong light is projected on the ...
Spreeuwers, L.J.
core   +1 more source

A new shape factor for counter-current imbibition in anisotropic matrix blocks of fractured reservoirs

open access: yesJournal of Petroleum Exploration and Production Technology
The shape factor is essential for characterizing matrix-fracture fluid transfer and scaling of spontaneous imbibition in fractured reservoirs. Most existing models assume isotropic permeability, while limited studies on anisotropic cases adopt constant ...
Guanlin Li, Yuhu Bai, Yuetian Liu
doaj   +1 more source

Effect of thermal-hydro-mechanical (THM) on wood shape memory effect and its mechanism

open access: yesResults in Engineering
This study investigates the three-dimensional (3D) crosslinked network of wood under thermohydromechanical (THM) treatment and elucidates the mechanisms by which THM disrupts this network, causing loss of the shape memory effect (SME).
Yali Shao   +6 more
doaj   +1 more source

Dense 3D facial shape recovery employing shading and correspondences

open access: yes, 2017
Human faces are one of the most frequently captured objects in both videos and photographs due to their fundamental role in communication and social interactions. The variability of this facial imagery makes it difficult to automate the understanding of scenes containing faces under unconstrained conditions.
openaire   +3 more sources

Development of 4D printing and its performance testing methods

open access: yesResponsive Materials
4D printing is a cutting‐edge additive manufacturing technology that introduces the time dimension, allowing printed objects to have dynamic, changeable properties, functions or shapes.
Guiwei Li   +8 more
doaj   +1 more source

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