IMAGE SIGNAL PROCESSING METHOD FOR DETECTING LINEAR FIXED PATTERN NOISE AND DEVICE FOR PERFORMING THE SAME

Abstract: a method for detecting linear fixed pattern noise (fpn) comprises extracting a plurality of pixel values from a first row of the roi, calculating a brightness value of the first row based on the extracted pixel values, calculating a first score indicating the variance of the pixel values of the first row, calculating a second score indicating a difference between the pixel value average of the first row and the pixel value average of the adjacent row to the first row, and determining whether the fixed pattern noise is present in the first row based on the first score and the first threshold and the second score and the second threshold.

Inventor(s): Seung Hyung LEE, Hyeong Sung CHO, Kyung Choon LEE, Sung Joh BAE, Jong Hyuk LEE, Young Kyun JEONG

CPC Classification: H04N25/671 (for non-uniformity detection or correction)

Search for rejections for patent application number 20250234106