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Similar figures. In Euclidean geometry, two objects are similar if they have the same shape, or if one has the same shape as the mirror image of the other.More precisely, one can be obtained from the other by uniformly scaling (enlarging or reducing), possibly with additional translation, rotation and reflection.
The structural similarity index measure (SSIM) is a method for predicting the perceived quality of digital television and cinematic pictures, as well as other kinds of digital images and videos. It is also used for measuring the similarity between two images.
Figure 1: The point O is an external homothetic center for the two triangles. The size of each figure is proportional to its distance from the homothetic center. In geometry, a homothetic center (also called a center of similarity or a center of similitude) is a point from which at least two geometrically similar figures can be seen as a dilation or contraction of one another.
Similitude can be used to predict the performance of a new design based on data from an existing, similar design. In this case, the model is the existing design. Another use of similitude and models is in validation of computer simulations with the ultimate goal of eliminating the need for physical models altogether.
The above-mentioned fixed point S is called homothetic center or center of similarity or center of similitude. The term, coined by French mathematician Michel Chasles, is derived from two Greek elements: the prefix homo-(όμο ' similar '}; and transl. grc – transl. thesis (Θέσις) ' position '). It describes the relationship between two ...
Without photos, we might never really know what our parents, grandparents, or even great-grandparents looked like when they were younger. Or what everyday life was like for people living 50, 100 ...
“It was two blonde women,” Marielle says. “So we tracked them down and were like, ‘Hey, these (pictures) belong to you.’ And then they thanked us and we went on our way.” ...
Similitude (model), in engineering, describing the geometric, kinematic and dynamic 'likeness' of two or more systems; Similarity (psychology) Similarity (philosophy) Similarity (signal processing) Musical similarity; Chemical similarity; Similarity (network science) Structural similarity; Similar, an upcoming South Korean film