Academic Press Library in Signal Processing

Chapter 3

Image and Document Capture—State-of-the-Art and a Glance into the Future

Kathrin Berkner,    Ricoh Innovations, Inc., Menlo Park, CA, USA

4.03.1 Introduction

An image capture process converts a specific scene information into digital numbers. The scene content can be a photographic object, e.g., a group of people or a sunset, a scientific object, such as cells on a microscope slide, or stars in an astronomy application, or a document, which contains text printed or written on a flat surface, e.g., paper. In this chapter we provide an overview of the latter category, the capture of documents. The capture process differs from that for the other two image categories due to the following facts: Conventional documents are considered to have ...