Such repetitions may create unrealistic, exact regularity in shapes or patterns.
Being based on geometric models assuming regularity of shapes and patterns, the procedure is well suited for detecting man-made features, such as the road network (outside and inside human settlements) and built-up areas.
Furthermore, results were improved by using primitive shapes, which helped overcome the inherent difficulties in segmenting echocardiographic images, by maintaining shape regularity.
Urban form was characterized using six spatial metrics, including the size, shape, regularity, fragmentation and traffic coupling factor of urban patches, based on satellite-derived land cover data.
Let (mathcal{T}_{h}={T_{i}: i=1,2,ldots,E_{h}} ) be a family of quasi-uniform and shape regularity triangulations of the domain (Omegasubsetmathbb{R}^{2}).
Empirically, we found that a prior step parameter of 5 was balanced enough to maintain the shape regularity of the snake, without greatly affecting the time complexity.
In this paper, we first propose several novel concepts for object-based image analysis, which include line-based shape regularity, line density, and scale-based best feature value (SBV), based on the region-line primitive association framework (RLPAF).
The prior step parameter was set to 5. By decreasing the value of this step parameter, greater shape regularity would occur, but it would take much longer for the snake to reach equilibrium.
By others, this mesh-refinement ensures uniform shape regularity of T ℓ.
Spot quality labelling (flags) was defined for empty spots with a signal strength threshold of 1, and for shape regularity with a threshold of 0.4.
