Scanning Multi-vector

Scanning is the transformation of object coordinates into numerical values. Scanning has the following properties: 1) the dimensions of the image are determined by the dimensions of the scanner mirror; 2) linear scanning (the plane of the mirror or the plane of the photosensitive matrix of the scanning head is rolled along the contour of the imaged object or projected film); 3) scanning areas of the image with lines parallel in the plane of the negative; 4) geometric reduction of the image. To scan various images and objects, a variety of scanners are used, both mechanical, like a copier, and electrophotographic, consisting of an image reader head and a signal processing unit. There are equipment for scanning documents (copiers, etc.), images, slides, microslides, photographs, etc. The principle of their operation is also varied - from wiping the drum with a roller of the scanned material through the scanner head to direct mechanical recording of stationary objects by electronic devices.