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

Vision0.83
AI hardware0.01
Evolutionary computation0.00
Knowledge representation0.00
Machine learning0.00
Natural language0.00
Planning0.00
Speech0.00

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.

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