Digital imaging devices become popular and have replaced analog ones since the invention and development of digital signal processing technology several years ago. A common problem in digital image is noise, which is often happened when the imaging devices such as digital camera, cctv, camcorder, are used in a poor lighting scene. To overcome this problem, many methods have been introduced. We ...

A new type of adaptive optics system is proposed for astronomical imaging. It replaces the wavefront sensing and modulation hardware pieces of conventional adaptive optics with numerical processing capabilities of digital holography of incoherent sources. OCIS codes: (010.1080) Active or adaptive optics; (090.1000) Aberration compensation; (090.1995) Digital holography; (110.0115) Imaging throu...

The multi-detector, multi-ray source switching function ray DR / ICT integration testing system has been developed, which covers international strongly development of ray digital imaging detection technology. Development of the test system forms the ray digital imaging product development capability of independent property serialization, and provides the conditions for the ray imaging detection...