Chapter 1
Introduction
High-resolution (HR) images are required in most electronic imaging applications. The high resolution means that the pixel density within the image is high, and therefore an HR image can offer more details than those obtained from a low-resolution (LR) image. HR images are of great importance in applications such as medical imaging, satellite imaging, military imaging, underwater imaging, remote sensing, and high-definition television (HDTV).
In the past, traditional image vidicon and orthicon cameras have been the only available image acquisition devices. These cameras are analog cameras. Since the 1970s, charge-coupled devices (CCDs) and complementary metal oxide semiconductor (CMOS) image sensors have been widely ...
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