METHOD AND DEVICE FOR IMPROVING THE VISIBILITY ESPECIALLY OF THIN LINES

METHOD AND DEVICE FOR IMPROVING THE VISIBILITY ESPECIALLY OF THIN LINES

The invention relates to a method and a device to detect thin lines of an incoming signal, especially of an image or video signal, comprising the steps of: analysing the incoming signal, calculating the first derivative of the incoming signal (52), analysing and marking the crossing of zero of the f...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: BLUME VOLKER, GROSS STEPHAN
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:The invention relates to a method and a device to detect thin lines of an incoming signal, especially of an image or video signal, comprising the steps of: analysing the incoming signal, calculating the first derivative of the incoming signal (52), analysing and marking the crossing of zero of the fust derivative (53), analysing the direction of the zero crossing (54) and coding the direction into the zero-signal, eliminating noise and invalid alternating sequences to identify the existence of a thin line.