Obiekt
Tytuł: Microelectronics sensor arrays with integral processing capability
Współtwórca:
Podtytuł:
Proceedings of the ACEP Workshop - Borowice (1992)
Tytuł publikacji grupowej:
Abstract:
A "smart" image sensor is described which is capable of performing low-level preprocessing of image data in parallel with the sensing operation. The chip consists of an array of 32 x 32 image sensing and storage cells and associated output circuits. The array is able to capture an image and simultaneously store the current and previous frames on separate capacitors located within each pixel site. Having the storage capacitors integrated into the sensing cells overcomes problems due to parasitic capacitance on the output lines which in turn improves the signal-to-noise ratio. ; The photocharge generated in the photodiode sensors is sensed nondestructively, using a buffer amplifier prior to being sampled onto the local capacitor. The charge on each capacitor is sensed in turn in the same manner prior to being dumped to the output line. The output circuitry consists of a parallel array of differential amplifiers and comparators. The amplifiers perform frame-differencing between the current and previous frames while the comparators are used for global thresholding. ; The frame-differencing and thresholding modes can be enabled and disabled independently. The chip has been fabricated in a 2.4 ? double-poly CMOS process and is intended for use as a front-end in motion detection applications. At present its operation is limited to the calculation of differences between two successive frames. ; Further development would be needed in order for the chip to be used as a motion detector, in particular the tasks of edge-detection and region classification would need to be implemented. Since the objective was to achieve motion detection in real-time it is intended that these operations should be performed in hardware. It is for this reason that the outputs from the 2-dimensional imaging array are presented in parallel.
Wydawca:
Zielona Góra: Uniwersytet Zielonogórski
Identyfikator zasobu:
Strony:
Źródło:
AMCS, volume 3, number 1 (1993) ; kliknij tutaj, żeby przejść
Jezyk:
Prawa do dysponowania publikacją:
Biblioteka Uniwersytetu Zielonogórskiego
Kolekcje, do których przypisany jest obiekt:
- Zielonogórska Biblioteka Cyfrowa > Repozytorium > Jednostki organizacyjne > Wydział Informatyki, Elektrotechniki i Automatyki
- Zielonogórska Biblioteka Cyfrowa > Repozytorium > Typy utworów > Artykuły
- Zielonogórska Biblioteka Cyfrowa > Repozytorium > Czasopisma naukowe i serie wydawnicze UZ > International Journal of Applied Mathematics and Computer Science (AMCS)
- Zielonogórska Biblioteka Cyfrowa > Repozytorium > Czasopisma naukowe i serie wydawnicze UZ > International Journal of Applied Mathematics and Computer Science (AMCS) > International Journal of Applied Mathematics and Computer Science (AMCS) (1993)
Data ostatniej modyfikacji:
2021-09-01
Data dodania obiektu:
2020-07-06
Liczba wyświetleń treści obiektu:
91
Wszystkie dostępne wersje tego obiektu:
https://zbc.uz.zgora.pl/publication/63814
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International Journal of Applied Mathematics and Computer Science (AMCS)
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International Journal of Applied Mathematics and Computer Science (AMCS), volume 7 (1997)
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International Journal of Applied Mathematics and Computer Science (AMCS), volume 6 (1996)
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International Journal of Applied Mathematics and Computer Science (AMCS), volume 5 (1995)
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International Journal of Applied Mathematics and Computer Science (AMCS), volume 4 (1994)
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International Journal of Applied Mathematics and Computer Science (AMCS), volume 3 (1993)
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International Journal of Applied Mathematics and Computer Science (AMCS), volume 3, number 1 (1993)
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| Nazwa wydania | Data |
|---|---|
| Microelectronics sensor arrays with integral processing capability | 2021-09-01 |
