Questions about the ArcScan extension to ArcGIS for Desktop.
ArcScan provides tools that allow you to convert scanned images into vector-based feature layers. The process of converting raster data to vector features is known as vectorization. Vectorization can be performed manually by interactively tracing raster cells or automatically using the automatic mode.
Source: What is ArcScan?
Starting with the release of ArcGIS 10.1, ArcScan for ArcGIS is included in all license levels of ArcGIS for Desktop software.