Image Sampling Along Directions
The concept of the CT or computed X-ray tomography is illustrated in Figure 3.1, which shows the process of projection data collection. On both sides of the analyzed object or image, which is assumed to be immovable, the X-ray set and detectors are disposed and revolved around the object by a small angle in certain time intervals, and the measurement data of radiation and detection of X-rays are collected along other directions. This set of measurements, or projections, taken at different positions of X-ray sources and detectors, is used by specific mathematical methods to reconstruct the two-dimensional (slice), or in general, the three-dimensional image of the observed object or tissue. The methods of image ...
Get Image Processing now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
