FOCUS DETECTOR

PROBLEM TO BE SOLVED: To perform an autofocus control.SOLUTION: A focus detector includes: extraction means which extracts a high luminance region from an image in an evaluation area set in an imaging screen; excluding means which excludes the image in the high luminance region extracted from the im...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	UEDA SOICHI
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HOLOGRAPHY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To perform an autofocus control.SOLUTION: A focus detector includes: extraction means which extracts a high luminance region from an image in an evaluation area set in an imaging screen; excluding means which excludes the image in the high luminance region extracted from the image in the evaluation area by the extraction means; and focus detection means which performs a focus detection based on the image in the evaluation area after the image in the high luminance region is excluded by the exclusion means. The extraction means specifies a high luminance pixel of the image in the evaluation area and groups the specified high luminance pixel by adding hue, or adds a ratio of the area of the high luminance region, to extract the high luminance region from the image in the evaluation area.