Driving techniques for high frame rate CCD camera

Weiqiang Guo; Longxu Jin; Jingwu Xiong

doi:10.1117/12.760841

22 January 2008 Driving techniques for high frame rate CCD camera

Weiqiang Guo, Longxu Jin, Jingwu Xiong

Proceedings Volume 6833, Electronic Imaging and Multimedia Technology V; 683339 (2008) https://doi.org/10.1117/12.760841
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

This paper describes a high-frame rate CCD camera capable of operating at 100 frames/s. This camera utilizes Kodak KAI-0340, an interline transfer CCD with 640(vertical)×480(horizontal) pixels. Two output ports are used to read out CCD data and pixel rates approaching 30 MHz. Because of its reduced effective opacity of vertical charge transfer registers, interline transfer CCD can cause undesired image artifacts, such as random white spots and smear generated in the registers. To increase frame rate, a kind of speed-up structure has been incorporated inside KAI-0340, then it is vulnerable to a vertical stripe effect. The phenomena which mentioned above may severely impair the image quality. To solve these problems, some electronic methods of eliminating these artifacts are adopted. Special clocking mode can dump the unwanted charge quickly, then the fast readout of the images, cleared of smear, follows immediately. Amplifier is used to sense and correct delay mismatch between the dual phase vertical clock pulses, the transition edges become close to coincident, so vertical stripes disappear. Results obtained with the CCD camera are shown.

Citation Download Citation

Weiqiang Guo, Longxu Jin, and Jingwu Xiong "Driving techniques for high frame rate CCD camera", Proc. SPIE 6833, Electronic Imaging and Multimedia Technology V, 683339 (22 January 2008); https://doi.org/10.1117/12.760841

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