Perfecting images in Camera phone applications White Paper

telepower888

【文件名】:08319@52RD_Perfecting images in  Camera phone applications White Paper.pdf
【格　式】:pdf
【大　小】:1140K
【简　介】:Behind every great image taken by a camera
phone, a huge amount of electronic/optical/
mechanical magic occurs. We are normally
oblivious to this magic since it happens so
quietly and unobtrusively. Here we discuss the
challenges of creating a good image from a
CMOS sensor inside a camera phone.
We describe the issues that deteriorate the
raw image, such as a decrease in sharpness
due to the lens, random noise and fixed
pattern noise. We explore the basics of the
imaging chain of events, including both image
restoration and image enhancement
mechanisms that occur all the way from basic
image capture to post processing.
Some of the post processing effects we discuss
include auto exposure, auto white balancing,
anti-vignetting (correcting for lens shading),
color filter array interpolation, color recovery
and correction, sharpening, gamma correction,
demosaicing, and on-the-fly defect
identification and correction.
【目　录】: