EXPOSURE CONTROL METHOD AND SYSTEM FOR AN IMAGE CAPTURE DEVICE

EXPOSURE CONTROL METHOD AND SYSTEM FOR AN IMAGE CAPTURE DEVICE

Improved exposure control processes, devices, and systems are provided for wide angle lens imaging systems that suffer from image distortion. The exposure control uses a model of the wide angle lens distortion that estimates the weights that respective pixels of the image would have when producing a...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Morales Efrain O, Bormet Jonathan
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
HANDLING RECORD CARRIERS
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Beschreibung
Zusammenfassung:Improved exposure control processes, devices, and systems are provided for wide angle lens imaging systems that suffer from image distortion. The exposure control uses a model of the wide angle lens distortion that estimates the weights that respective pixels of the image would have when producing an undistorted version of the image signal, and then scales pixel intensity values by the respective weights to produce weighted pixel values. The weighted pixel values are provided to an exposure control pixel counting process to produce one or more exposure feedback control signals, which control exposure features of the imaging system.