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searching for Image gradient 12 found (28 total)

Insight Segmentation and Registration Toolkit (2,269 words) [view diff] no match in snippet view article find links to article

ITK is a cross-platform, open-source application development framework widely used for the development of image segmentation and image registration programs

Devonshire Tunnel (151 words) [view diff] exact match in snippet view article find links to article

of 1 in 50, on a line where the ruling gradient was also 1 in 50. "Image gradient profile". Two Tunnels Shared Path. Archived from the original on 13

Anisotropic diffusion (1,754 words) [view diff] exact match in snippet view article find links to article

controls the rate of diffusion and is usually chosen as a function of the image gradient so as to preserve edges in the image. Pietro Perona and Jitendra Malik

Edge detection (5,171 words) [view diff] exact match in snippet view article find links to article

(L_{y},L_{x}).} Other first-order difference operators for estimating image gradient have been proposed in the Prewitt operator, Roberts cross, Kayyali operator

Scale-invariant feature transform (9,260 words) [view diff] exact match in snippet view article find links to article

each keypoint is assigned one or more orientations based on local image gradient directions. This is the key step in achieving invariance to rotation

Irwin Sobel (151 words) [view diff] case mismatch in snippet view article find links to article

Researcher at HP Labs. In 1968, Sobel gave a talk entitled "An Isotropic 3x3 Image Gradient Operator" at SAIL; this method became known as the Sobel operator. It

Compressed sensing (5,874 words) [view diff] exact match in snippet view article find links to article

Another disadvantage is that this method tends to uniformly penalize the image gradient irrespective of the underlying image structures. This causes over-smoothing

Ridge detection (4,704 words) [view diff] exact match in snippet view article find links to article

coordinate system with the v {\displaystyle v} direction parallel to the image gradient ∂ u = sin ⁡ α ∂ x − cos ⁡ α ∂ y , ∂ v = cos ⁡ α ∂ x + sin ⁡ α ∂ y {\displaystyle

Structure tensor (5,501 words) [view diff] exact match in snippet view article find links to article

needed for determining the amount of pre-smoothing when computing the image gradient ( ∇ I ) ( x ; t ) {\displaystyle (\nabla I)(x;t)} . Another scale parameter

Active contour model (4,058 words) [view diff] exact match in snippet view article find links to article

E_{\text{line}}=\operatorname {filter} (I(x,y))} The edge functional is based on the image gradient. One implementation of this is E edge = − | ∇ I ( x , y ) | 2 . {\displaystyle

Cycling tunnel (1,343 words) [view diff] exact match in snippet view article find links to article

in tunnels". Arctic Cycling. 9 October 2017. Retrieved 2024-05-25. "Image gradient profile". Two Tunnels Shared Path. Archived from the original on 2014-08-13

Electron backscatter diffraction (13,688 words) [view diff] exact match in snippet view article find links to article

Pascal J. (2017). "Improved simulation based HR-EBSD procedure using image gradient based DIC techniques". Ultramicroscopy. 182: 17–27. doi:10.1016/j.ultramic