IMAGING DEVICE AND PHASE DIFFERENCE DETECTION METHOD

An imaging device includes an imaging section (10) that captures a first object image and a second object image that have parallax with respect to an identical object, and a phase difference detection section (30) that calculates a correlation coefficient between a first image in which the first obj...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	IMADE, Shinichi
Format:	Patent
Sprache:	eng ; fre ; ger
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 CALCULATING CINEMATOGRAPHY COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY GYROSCOPIC INSTRUMENTS HOLOGRAPHY IMAGE DATA PROCESSING OR GENERATION, IN GENERAL MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SURVEYING TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	An imaging device includes an imaging section (10) that captures a first object image and a second object image that have parallax with respect to an identical object, and a phase difference detection section (30) that calculates a correlation coefficient between a first image in which the first object image is captured, and a second image in which the second object image is captured, and detects the phase difference between the first image and the second image based on the correlation coefficient. The phase difference detection section (30) subjects the pixel value of the first image and the pixel value of the second image to a normalization process, calculates the average value of the pixel value of the first image and the pixel value of the second image that have been subjected to the normalization process, and calculates the correlation coefficient based on a value obtained by adding up the values obtained by subjecting the pixel value of the first image and the pixel value of the second image that have been subjected to the normalization process to a subtraction process within a fall interval in which the average value decreases, and a value obtained by adding up the values obtained by subjecting the pixel value of the first image and the pixel value of the second image that have been subjected to the normalization process to the subtraction process within a rise interval in which the average value increases.