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EP0077239A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Spatial correction device for an image scanner

Assignee: Thales SA
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Filing: 1982-09-28
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Granted: —
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Expires: 2002-09-28
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Abstract

Abstract Translated from French Ce dispositif comporte une mémoire (1) apte à stocker, pour chacun des MN rectangles résultant d'un quadrillage du support de restitution d'images de l'analyseur en M groupes de L lignes chacun et en N colonnes, un signal prédéterminé de correction associé à ce rectangle, un séquenceur (2) pour assurer l'application de ces signaux de correction, et des moyens d'interpolation (5) pour calculer les valeurs intermédiaires des signaux de correction correspondant à chacune des L lignes d'un rectangle donné, de manière à éviter les ruptures de dérivées des signaux de correction lors de transitions entre rectangles adjacents situés sur une même colonne. Application à la correction de défauts des analyseurs d'images. This device comprises a memory (1) capable of storing, for each of the MN rectangles resulting from a grid of the image restitution support of the analyzer in M groups of L rows each and in N columns, a predetermined correction signal associated with this rectangle, a sequencer (2) for ensuring the application of these correction signals, and interpolation means (5) for calculating the intermediate values of the correction signals corresponding to each of the L lines of a given rectangle , so as to avoid breaks in derivatives of the correction signals during transitions between adjacent rectangles located on the same column. Application to the correction of defects in image analyzers.

Inventors

  • 👤 Georges Labb

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-07 22:25
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/10; H04N23/13; H04N23/15; H04N23/80; H04N23/81

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

FR2070713A1 Cited
GB1353147A Cited

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