skanning

Skanning, or scanning in English, is the process of examining or measuring an object, area, or dataset with sensors or instruments to produce digital information. It enables converting physical or abstract data into a form suitable for analysis, storage, or display.

Medical imaging scanning includes CT, MRI, PET, and ultrasound. Each modality uses different physics to visualize internal structures and aid diagnosis, treatment planning, or monitoring. Considerations include radiation exposure, contrast use, and motion artifacts.

Document and data scanning converts paper or other media into digital images. Scanners are used with OCR to extract text for search and archiving. In libraries and archives, high-resolution scans help preserve details and improve access.

3D and visual scanning capture shape, texture, and color with laser, structured light, photogrammetry, or LiDAR. Applications range from manufacturing and quality control to cultural heritage and entertainment. Barcodes and QR codes are read by barcode scanners for data retrieval.

Remote sensing and environmental scanning use satellites or aircraft to collect data across spectra for mapping, agriculture, weather, and disaster response. In cybersecurity, scanning also refers to activities like port scanning and vulnerability assessment to identify exposures.

Safety, privacy, and data quality are important considerations. Some medical scans involve radiation; digitization raises privacy concerns for personal documents. Across forms, trade-offs among resolution, speed, and cost influence method choice.