You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither SPIE nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the SPIE website.
1 November 1991Focal-plane image processing using acoustic charge transport technology
Digital technology has made dramatic strides in providing higher signal processing throughput in smaller packages. However, meeting processor throughput requirements for future imagers will be difficult using current or near-term available digital technology. As fabrication technology allows for more dense focal planes, typical image processing throughput requirements per frame increase with the number of pixels; for example, the number of pixel gain and offset computations quadruple when the focal plane size increases from a 128 X 128 to a 256 X 256 array. Several analog technologies are answering the driving throughput requirements for image processing applications; one such technology is the movement of charge packets through a piezoelectric GaAs channel, called acoustic charge transport (ACT). Analog solutions such as ACT offer orders of magnitude higher throughput imagers than A/D conversions and digital processing approaches. This paper includes (1) an overview of the theory of ACT device operation, (2) currently available ACT technology and devices, and (3) computational benefits. Detailed proprietary architectures of current ACt image processor designs are not discussed here.
Geoffrey W. Brooks
"Focal-plane image processing using acoustic charge transport technology", Proc. SPIE 1541, Infrared Sensors: Detectors, Electronics, and Signal Processing, (1 November 1991); https://doi.org/10.1117/12.49320
The alert did not successfully save. Please try again later.
Geoffrey W. Brooks, "Focal-plane image processing using acoustic charge transport technology," Proc. SPIE 1541, Infrared Sensors: Detectors, Electronics, and Signal Processing, (1 November 1991); https://doi.org/10.1117/12.49320