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Interactive processing: Geometry manipulation

Robert G. Clapp


Header manipulation for regularization, registration and quality control is often a time-consuming task with 3-D datasets. These manipulation tasks are often performed multiple times before achieving the desired result, each requiring a large amount of data to be read in with very few operations performed on each byte read. The problem can be made more tractable by reading in a random subset of the headers. Operations such as rotating, windowing, and gridding can then be performed interactively. With each processing step a record is created. These records can then be used to process the entire dataset, requiring only a single read and write of the volume.