Modular image acquisition and measurement system with 12-bit pixel-synchronous sampling

Jeffrey M. Raynor; Daniel Ilar; Roland Maag; Peter Metzler; Peter Seitz

doi:10.1117/12.175154

5 May 1994 Modular image acquisition and measurement system with 12-bit pixel-synchronous sampling

Jeffrey M. Raynor, Daniel Ilar, Roland Maag, Peter Metzler, Peter Seitz

Proceedings Volume 2173, Image Acquisition and Scientific Imaging Systems; (1994) https://doi.org/10.1117/12.175154
Event: IS&T/SPIE 1994 International Symposium on Electronic Imaging: Science and Technology, 1994, San Jose, CA, United States

Abstract

This paper describes the requirements, design, and results of a modular data acquisition system with a resolution of 12 bits at up to 20 MHz sampling frequency. The modularity enables the analog-digital conversion to be separated from the digital processing/storage. This allows the latest, best performing ADC (analog-digital converter) to be easily integrated into the system by a re-design of only the AD board with the rest of the system unchanged. The converter employed operates at frequencies up to 20 MHz. The complete system produces measured quantization noise figures of -75 dB and integral non-linearity of -72 dB. The unit can sample video or non-video waveforms. For video applications, an active clamping system is used to ensure that the black level is accurately maintained. The framestore is connected externally using a high-speed digital data bus. This facilitates the inclusion of real-time digital processing units. The framestore used is doubly buffered to permit simultaneous acquisition and readout. The store is 8 Mbytes to accommodate HDTV images and has an input data rate of 40 Mbytes per second.

Citation Download Citation

Jeffrey M. Raynor, Daniel Ilar, Roland Maag, Peter Metzler, and Peter Seitz "Modular image acquisition and measurement system with 12-bit pixel-synchronous sampling", Proc. SPIE 2173, Image Acquisition and Scientific Imaging Systems, (5 May 1994); https://doi.org/10.1117/12.175154

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