Die Spacer Thickness Reproduction for Central Incisor Crown Fabrication with Combined Computer-aided Design and 3D Printing Technology: An in vitro Study [PDF]
, 2015 Statement of problem The inability to control die spacer thickness has been reported. However, little information is available on the congruency between the computer-aided design parameters for die spacer thickness and the actual printout.
Ahn, Kwang Woo +4 more
core +1 more source
An Investigation of Thread Rolling Characteristics of Titanium Micro-Screws according to Die Design Parameters [PDF]
한국정밀공학회지, 2017 Micro-screws can be defined by their outer diameter of generally less than 1 mm. They are manufactured by head forging and thread rolling processes. In this study, the thread rolling process was numerically analyzed for a micro-screw with a diameter and ...
Ji Eun Lee, Jong-Bong Kim, Keun Park
doaj +1 more source
Improvement of Machining Thin-Walled Parts Generated by Hybrid Manufacturing Using Optimalized Support [PDF]
, 2018 This paper is intended to show the problem in the production of thin-walled parts using hybrid manufacturing. It is necessary to machine the parts generated by 3D printing at certain stages of the production process.
Hosnedl S., Smolík J.
core
Contour Generator Points for Threshold Selection and a Novel Photo-Consistency Measure for Space Carving [PDF]
, 2003 Space carving has emerged as a powerful method for multiview scene reconstruction. Although a wide variety of methods have been proposed, the quality of the reconstruction remains highly-dependent on the photometric consistency measure, and the threshold
Isidoro, John, Sclaroff, Stan
core
Quantum TeknikaAluminum, with a thermal conductivity close to 2/3 that of copper, can utilize friction welding effectively. Chamfer angles improve the welding quality by increasing the generated heat, resulting in higher mechanical properties.
Andi Priambudi, Iman Dirja, Rizal Hanifi
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Enhanced Light Extraction of High-Voltage Light Emitting Diodes Using a Sidewall Chamfer Structure
IEEE Photonics Journal, 2017 High-voltage light-emitting diodes (HV-LEDs) were prepared with 4 × 2 microcells. A novel technique for enhancing the light extraction of HV-LEDs by using wet-etched chamfer structures in the sidewalls of each cell is proposed.
Ping-Chen Wu +3 more
doaj +1 more source
Improved Chamfer Matching Using Interpolated Chamfer Distance and Subpixel Search [PDF]
, 2007 Chamfer matching is an edge based matching technique that has been used in many applications. The matching process is to minimize the distance between transformed model edges and image edges. This distance is usually computed at the pixel resolution using a distance transform, thus reducing accuracy of the matching.
openaire +1 more source
Pix3D: Dataset and Methods for Single-Image 3D Shape Modeling
, 2018 We study 3D shape modeling from a single image and make contributions to it in three aspects. First, we present Pix3D, a large-scale benchmark of diverse image-shape pairs with pixel-level 2D-3D alignment.
Freeman, William T. +7 more
core +1 more source
3D Shape Reconstruction from Sketches via Multi-view Convolutional Networks
, 2017 We propose a method for reconstructing 3D shapes from 2D sketches in the form of line drawings. Our method takes as input a single sketch, or multiple sketches, and outputs a dense point cloud representing a 3D reconstruction of the input sketch(es). The
Gadelha, Matheus +4 more
core +1 more source
Optimum design of chamfer masks using symmetric mean absolute percentage error
EURASIP Journal on Image and Video Processing, 2019 Distance transform, a central operation in image and video analysis, involves finding the shortest path between feature and non-feature entries of a binary image.
Baraka Jacob Maiseli
doaj +1 more source