Abstract

Temporal and spatial properties of the image that is stored in the digital memory of a frame grabber through a solid-state image sensor, which employs the XY addressing method for scanning the image, are analyzed in the space–time domain by using the mathematical expression that we have obtained. This expression includes not only the static effects of the finite picture-cell size of the sensor and the image sampling in both the sensor and the grabber but also the dynamic effects of the temporal response of photoelectric conversion in the sensor, a one-dimensional electrical filter of the camera controller, and the asynchronous sampling with regard to time in both the sensor and the grabber. Results of the experiment and the numerical simulations based on the mathematical expression are presented for a time-varying one-dimensional object with good agreement.

© 1992 Optical Society of America

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