METHOD AND IMAGING APPARATUS FOR CORRECTING DEFECTIVE PIXEL OF SOLID-STATE IMAGE SENSOR, AND METHOD FOR CREATING PIXEL INFORMATION
Patent №
US 7,301,571
Granted
2007-11-27
Filed 2004
Owner
FUJI PHOTO FILM CO., LTD.
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
10757469
In a solid-state image sensor in which a large number of pixel cells each comprised of a combination of a main photosensitive pixel having a relatively large area and a subsidiary photosensitive pixel having a relatively small area are arranged, if the subsidiary photosensitive pixel has a defect for any pixel cell, division photometry data during AE processing is read, and the defective pixel is replaced with a value obtained by dividing the output value of the main photosensitive pixel at the same position by a sensitivity ratio only for a section for which it is determined that the main photosensitive pixel is not saturated. Thus, the pixel value of a defective pixel can be accurately corrected without causing a reduction in resolution sensitivity compared to a conventional method of correcting a defective pixel using surrounding pixel information.
AI classification
Ownership
FUJI PHOTO FILM CO., LTD.
assignment · 148960070
Assignors
KOBAYASHI, HIROKAZU, ODA, KAZUYA, MISAWA, TAKESHI
On an employer assignment, the assignors are typically the inventors.