We describe an algorithm for three-dimensional display of discrete objects in a discrete space. There are no restrictions on the objects: they may be concave or convex, have holes (including interior holes) and can co...
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Building facade classification by architectural styles allows categorization of large databases of building images into semantic categories belonging to certain historic periods, regions and cultural influences. image...
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Architectural elements are the components and details of buildings. Their unique set, combination, design, construction technique form the architectural style of buildings. Building facade classification by architectu...
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Pyramid schemes are described that make use of relations between the different resolutions of pictorial entities, such as intensity and edge. The presented system consists of a 3*3/2 intensity and a 2*2/2 curve pyrami...
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Pyramid schemes are described that make use of relations between the different resolutions of pictorial entities, such as intensity and edge. The presented system consists of a 3*3/2 intensity and a 2*2/2 curve pyramid. At every level, the two square grids are dual to each other. Contour operators generate the symbolic curve codes in the base of the curve pyramid. When the operators are moved several steps up and down in the curve pyramid, short contour segments are removed from the base. The remaining curves are used to preserve the contours at the reduced levels of the intensity pyramid. Experiences from different variants of the dual concept are reported.< >
Due to their rapid reproduction, development, and similar genetic structure to humans, zebrafish are popular animals in various biological research. Their small size and body transparency make them convenient to exami...
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The objective of semantic segmentation in microscopic images is to extract the cellular, nuclear or tissue components. This problem is challenging due to the large variations of these components features (size, shape,...
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We constructed a single C-B zier curve with a shape parameter for G2 joining two circular arcs. It was shown that an S-shaped transition curve, which is able to manage a broader scope about two circle radii than the B...
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We constructed a single C-B zier curve with a shape parameter for G2 joining two circular arcs. It was shown that an S-shaped transition curve, which is able to manage a broader scope about two circle radii than the B zier curves, has no curvature extrema, while a C-shaped transition curve has a single curvature extremum. Regarding the two kinds of curves, specific algo- rithms were presented in detail, strict mathematical proofs were given, and the effectiveness of the method was shown by examples. This method has the following three advantages: (1) the pattern is unified; (2) the parameter able to adjust the shape of the tran- sition curve is available; (3) the transition curve is only a single segment, and the algorithm can be formulated as a low order equation to be solved for its positive root. These advantages make the method simple and easy to implement.
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