Information Technology

Image processing and data analysis

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A range of very different ideas have been used to formulate the human ability to view and comprehend phenomena on different scales. Wavelet and other multiscale transforms are treated in this book. Just a few alternative approaches are surveyed in this section. In this section also, various terms are introduced in passing, which will reappear many times in later chapters. Data classification may be carried out using hierarchical classification (Murtagh, 1985). A sequence of agglomerative steps is used, merging data objects into a new cluster at each step. There is a fixed number of total operations in this case. Such an approach is bottom-up, starting with the set of data objects, considered independently. Spatial and other constraints may be incorporated, to provide segmentation or regionalization methods. This approach is combinatorial since neither continuous data values, nor stochasticity, are presupposed. For alternative combinatorial methods, see Breiman et al. (1984) and Preparata and Shamos (1985). For image data, split-and-merge approaches are introduced in Schalkoff (1989).

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: ., 2000

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1-315

Language

English

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NONE

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Image processing and data analysis

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