Stephen Mann
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View article: An Edge-Based Neural Network Architecture for Instance Segmentation in Machining Feature Recognition
An Edge-Based Neural Network Architecture for Instance Segmentation in Machining Feature Recognition Open
Recent advances in the field of artificial intelligence have yielded promising results with regards to the prospect of automating the task of machining feature recognition (MFR). Popular among the proposed methods for MFR are learning-base…
View article: Improvements to a Machine Learning Machining Feature Recognition System
Improvements to a Machine Learning Machining Feature Recognition System Open
The estimation of bounds on derivatives of rational Bézier curves has significant application in Computer Aided Geometric Design (CAGD).This paper proposes a piecewise method to estimate the derivative bounds of the rational Bézier curves.…
View article: Evaluation of a Stereo Depth Camera for Part Monitoring For CNC Machining
Evaluation of a Stereo Depth Camera for Part Monitoring For CNC Machining Open
The estimation of bounds on derivatives of rational Bézier curves has significant application in Computer Aided Geometric Design (CAGD).This paper proposes a piecewise method to estimate the derivative bounds of the rational Bézier curves.…
View article: Investigations of a functional version of a blending surface scheme for regular data interpolation
Investigations of a functional version of a blending surface scheme for regular data interpolation Open
This paper describes an implementation and tests of a blending scheme for regularly sampled data interpolation, and in particular studies the order of approximation for the method. This particular implementation is a special case of an ear…
View article: Tool Positioning in Five Axis Machining on a Tensor Product Surface using Circular Rays
Tool Positioning in Five Axis Machining on a Tensor Product Surface using Circular Rays Open
In this paper, we give a method for positioning a toroidal tool on a tensor product surface with two points of contact. By firing vertical rays and circular rays from the tensor product surface to the toroidal cutting surface, we can find …
View article: A new approach to find gouge free tool positions for a toroidal cutter for Bezier surfaces in Five axis machining
A new approach to find gouge free tool positions for a toroidal cutter for Bezier surfaces in Five axis machining Open
We implement and test a multi-point machining tool positioning technique that positions the tool using only a variation on gouge checking. The result is a method that is roughly twice as fast as an earlier method that performed a numerical…
View article: Numerical Implementation of Drop Spin and Tilt Method For Five-Axis Tool Positioning For Tensor Product Surfaces
Numerical Implementation of Drop Spin and Tilt Method For Five-Axis Tool Positioning For Tensor Product Surfaces Open
This paper presents an extension of multi point machining technique, called the Drop Spin and Tilt (DST) method, that spins the tool on two axes, allowing for the generation of multiple contact points at varying distances around the first …
View article: Canadian Conference for the Advancement of Surgical Education: Abstracts
Canadian Conference for the Advancement of Surgical Education: Abstracts Open
# Intraoperative teaching styles: preferences of surgical residents {#article-title-2} There is variation in the way different surgeons teach in the operating room setting. Surgical residents in training may have preferences and opinions o…
View article: Five-Axis Tool Positioning of a Toroidal End Mill Tool Near Common Edge Between Two Intersecting Surfaces
Five-Axis Tool Positioning of a Toroidal End Mill Tool Near Common Edge Between Two Intersecting Surfaces Open
As additive manufacturing (3D printing) technology becomes increasingly mainstream, new tools are required to enhance creative endeavors in disciplines such as fashion design, which have been slow to embrace digital technologies and comput…
View article: On the Clifford Algebraic Description of the Geometry of a 3D Euclidean Space
On the Clifford Algebraic Description of the Geometry of a 3D Euclidean Space Open
We discuss how transformations in a three dimensional euclidean space can be described in terms of the Clifford algebra $\mathcal{C}\ell_{3,3}$ of the quadratic space $\mathbb{R}^{3,3}$. We show that this algebra describes in a unified way…
View article: Analysis of Speed in Traditional Animation
Analysis of Speed in Traditional Animation Open
Frame-to-frame movement (speed) in animation is commonly de-scribed as easing in, easing out, and moving evenly between key-frames. We examined the 2D movement of the salient parts of characters in freehand animation and identified a patte…
View article: 3D representation and CNC machining of 2D digital images
3D representation and CNC machining of 2D digital images Open
First published by Elsevier, https://dx.doi.org/10.1016/j.promfg.2018.07.001 © 2018. This open-access article is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/