Results 11 to 20 of about 88,506 (276)

Real-Time Local Optimal Bézier Corner Smoothing for CNC Machine Tools

open access: yesIEEE Access, 2021
A straight line or G01 is the most common path in computer numerical control (CNC) contour machining. However, non-smooth corners introduce discontinuous movement along each axis during machining. The commonly used strategy is to redesign a corner into a
Tzyy-Chyang Lu, Shyh-Leh Chen
doaj   +1 more source

Artistic Edge and Corner Enhancing Smoothing [PDF]

open access: yesIEEE Transactions on Image Processing, 2007
Two important visual properties of paintings and painting-like images are the absence of texture details and the increased sharpness of edges as compared to photographic images. Painting-like artistic effects can be achieved from photographic images by filters that smooth out texture details, while preserving or enhancing edges and corners.
G. PAPARI, N. PETKOV, CAMPISI, PATRIZIO
openaire   +4 more sources

Robust Corner Finding Based on Multi-Scale K-Cosine Angle Detection

open access: yesIEEE Access, 2020
Corner is widely utilized in computer vision and image processing. As a representative contour-based corner detection algorithm, RJ detector is first proposed to use the K-cosine to estimate curvature of digital curves for corner finding.
Shizheng Zhang   +5 more
doaj   +1 more source

Performance Evaluation Criteria for Triangular Microchannels with Smoothed Corners

open access: yesJournal of Physics: Conference Series, 2022
Abstract The manufacturing capabilities available today for microchannels make it possible to produce in a comparatively easy, quick and cheap way several cross-sections, possibly allowing modifications of the macro-geometry. Another way is smoothing the corners of polygona cross-sections: this eliminates low-gradient areas and increases
Suzzi N., Lorenzini M.
openaire   +3 more sources

A corner smoothing algorithm using Trajectory Pattern Method (TPM) for high-speed and high-quality machining

open access: yesAdvances in Mechanical Engineering, 2021
In micro-line segments machining, transition curves with high harmonic components are more prone to causing vibration issues in the feed drive system, which affects machining efficiency and quality severely.
Hao Li   +4 more
doaj   +1 more source

Elastoplastic Integration Method of Mohr-Coulomb Criterion

open access: yesGeotechnics, 2022
A new method for implicit integration of the Mohr-Coulomb non-smooth multisurface plasticity models is presented, and Koiter’s requirements are incorporated exactly within the proposed algorithm.
Tan Zhang   +3 more
doaj   +1 more source

AN EFFICIENT BRITWARI TECHNIQUE TO ENHANCE CANNY EDGE DETECTION ALGORITHM USING DEEP LEARNING

open access: yesICTACT Journal on Soft Computing, 2022
Artificial Intelligence edge detection refers to a set of mathematical techniques used to recognize digital image locations. The picture brightness plays a vital role in detecting dissimilarities and making decisions.
S Britto Ramesh Kumar, A Bhuvaneshwari
doaj   +1 more source

Dual-Bézier path smoothing and interpolation for five-axis linear tool path in workpiece coordinate system

open access: yesAdvances in Mechanical Engineering, 2015
The tool path composed of consecutive short linear segments (G01 blocks) is still the widespread tool path representation form in five-axis machining. The inherent shortcoming of linear tool path is first-order discontinuity at the corner, which is the ...
Yongqiao Jin, Qingzhen Bi, Yuhan Wang
doaj   +1 more source

Block Overlap Based CNC Interpolator with Variable Time Constant [PDF]

open access: yes한국정밀공학회지
This paper proposed a CNC interpolator based on block overlap, capable of changing acceleration and deceleration time constants during continuous machining. The time constant can be set individually for each block through G-code commands.
Chan-Young Lee   +3 more
doaj   +1 more source

Improved A* Path Planning Method Based on the Grid Map

open access: yesSensors, 2022
In obstacle spatial path planning, the traditional A* algorithm has the problem of too many turning points and slow search speed. With this in mind, a path planning method that improves the A* (A-Star) algorithm is proposed. The mobile robot platform was
Yangqi Ou   +4 more
doaj   +1 more source

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