A virtual simulation system of TDI line scan camera

Author

Chen, Xiaoli ; Yin, Chengliang ; Feng, Yong

Author_Institution

Sch. of Mech. Eng., Shanghai Jiao Tong Univ., Shanghai

fYear

2008

fDate

2-5 July 2008

Firstpage

138

Lastpage

144

Abstract

The paper established a TDI line scan camera virtual simulation system which consists of the camera optical pipeline model, the TDI CCD line scan sensor model and its electronics model. The camera optical pipeline model gives a geometric perspective and light energy transmission relationship from continuous known objects to a discrete image on the TDI CCD sensor. Then the mathematical relationship between the amount of incident light and the analog output signal of a TDI CCD sensor is established. Finally, the camera electronics comprising pre amplifier, DC restore, correlated double sampling (CDS), gain amplifier, and A/D converter are modeled. The virtual simulation system of TDI line scan camera can realize the recover of a scenic image just as a real camera do. It is useful to design and evaluate the electronics of the camera, to develop the virtual CCD camera and to study the image improvement methods.

Keywords

CCD image sensors; analogue-digital conversion; delays; digital simulation; virtual instrumentation; A/D converter; CCD line scan sensor; discrete image; gain amplifier; image improvement methods; incident light; light energy transmission; optical pipeline; virtual simulation system; Cameras; Charge coupled devices; Charge-coupled image sensors; Geometrical optics; Image restoration; Optical amplifiers; Optical sensors; Pipelines; Sensor systems; Solid modeling; CCD; Time Delay and Integration (TDI); modeling; virtual camera;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Intelligent Mechatronics, 2008. AIM 2008. IEEE/ASME International Conference on

Conference_Location

Xian

Print_ISBN

978-1-4244-2494-8

Electronic_ISBN

978-1-4244-2495-5

Type

conf

DOI

10.1109/AIM.2008.4601648

Filename

4601648