Results 11 to 20 of about 8,221 (257)
Computationally efficient approach to quantify 2D particle morphological descriptors [PDF]
EPJ Web of Conferences, 2021 The macro-scale behavior of granular materials is strongly influenced by grain kinematics. The mobility of the grains in turn is affected by grain morphology which needs to be comprehensively characterized.
Kalyan N.S.S.P., Kandasami Ramesh Kannan
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Smoothed Corners and Scattered Waves [PDF]
SIAM Journal on Scientific Computing, 2016 We introduce an arbitrary order, computationally efficient method to smooth corners on curves in the plane, as well as edges and vertices on surfaces in $\mathbb R^3$. The method is local, only modifying the original surface in a neighborhood of the geometric singularity, and preserves desirable features like convexity and symmetry.
Charles L. Epstein, Michael O'Neil
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Smoothing images creates corners [PDF]
Image and Vision Computing, 2000 The isophote curvature times the gradient magnitude to some power has been studied in the literature as a measure of cornerness in images. Stability in terms of sampling noise has been proposed by selecting corners at high scale and locating them at fine scale.
Sporring, Jon +3 more
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Real-Time Local Optimal Bézier Corner Smoothing for CNC Machine Tools
IEEE 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
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Artistic Edge and Corner Enhancing Smoothing [PDF]
IEEE 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
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Robust Corner Finding Based on Multi-Scale K-Cosine Angle Detection
IEEE 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
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Performance Evaluation Criteria for Triangular Microchannels with Smoothed Corners
Journal 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.
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Block Overlap Based CNC Interpolator with Variable Time Constant [PDF]
한국정밀공학회지This 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
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Advances 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
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Advances 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
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