Title :
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
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;
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
DOI :
10.1109/AIM.2008.4601648
