Overhead scanning refers to a document scanning method where documents are placed on a flat surface, and an overhead camera or scanner captures images of the documents from above. This scanning technique is commonly used for various types of documents, including books, loose papers, photographs, and fragile materials. Overhead scanning offers several advantages in terms of ease of use, efficiency, and preservation of delicate documents.
Key features and benefits of overhead scanning include:
Preservation of Fragile Documents: Overhead scanning is gentle on delicate or fragile materials, such as historical manuscripts, rare books, or fragile photographs, as it avoids the need for contact with scanning surfaces.
Efficiency: The setup of overhead scanners allows for the quick capture of multiple pages simultaneously, improving scanning efficiency and throughput.
Large Format Scanning: Overhead scanners are suitable for capturing images of larger documents or materials, such as newspapers, maps, and oversized pages.
Book Scanning: Overhead scanning is widely used for digitizing books without the need for manual flattening or pressing, preserving the integrity of bound materials.
Non-Destructive: The non-contact nature of overhead scanning minimizes the risk of damaging or harming the original documents during the scanning process.
Versatility: Overhead scanners can handle a variety of document types, including those with uneven surfaces, folds, or irregular shapes.
Automatic Document Feeding: Some overhead scanners feature automatic document feeders, allowing for batch scanning and further enhancing the overall scanning process.
Overhead scanning is commonly employed in libraries, archives, museums, and digitization projects where preserving the condition of the original document is crucial. It offers a practical and efficient solution for capturing high-quality digital images of various materials while minimizing the risk of damage.
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