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Summary

Description
Deutsch: Prinzip eines digitalen PSDs: Die Helligkeit jedes Pixels wird mit einem globalen Schwellwert verglichen. Die Vergleichsergebnisse werden zeilen- und spaltenweise mit einem logischen Oder verknüpft. Aus den Koordinaten aller aktiven Zeilen und Spalten (rot) wird dann ein Schwerpunkt berechnet, der die gesuchte Koordinate des Lichtflecks (gelber Kreis) darstellt.
English: Principle of a digital en:Position sensitive device: The illumination of each pixel is compared to a global threshold. The results of the comparisons are logically OR-ed for each row and column separately. From the co-ordinates of all active rows and columns (shown in red) the center of gravity is computed, which is the wanted co-ordinate of the light spot (yellow circle).
Date
Source Own work Information taken from N. Massari, L. Gonzo, M. Gottardi and A. Simoni: High Speed Digital CMOS 2D Optical Position Sensitive Detector. ESSCIRC, Firenze, Italy , Sept. 2002, PDF
Author Georg Wiora (Dr. Schorsch)
SVG
InfoField
 
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Captions

Principle of a digital position sensitive device (PSD)

Items portrayed in this file

depicts

Position sensitive device

inception

14 April 2006

File history

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Date/TimeThumbnailDimensionsUserComment
current12:19, 1 May 2010Thumbnail for version as of 12:19, 1 May 2010457 × 482 (37 KB)XorxHopefully fixed font problems by using standard font "serif"
11:11, 14 April 2006Thumbnail for version as of 11:11, 14 April 2006457 × 482 (39 KB)XorxProblem with shading of clones hopefully removed
10:34, 14 April 2006Thumbnail for version as of 10:34, 14 April 2006457 × 482 (35 KB)Xorx{{Information| }}

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