Samsung Electronics Co., Ltd.

Wonho Cho

Kwanhee Lee

Sung Kwang Cho

Taechan Kim

Jongsung Lee

Daeyoung Chung

Minchul Lee

Sanghyun Cho

Heechang Hwang

Hayoung Ko

An optics-based fingerprint sensor may include a first photodiode, a first metal shield structure that is formed on the first photodiode and includes a first opening, a first color filter structure that is formed on the first metal shield structure and including a second opening exposing the first opening, a second photodiode that is spaced apart from the first photodiode by a predetermined distance, a first nano-optical filter structure that is formed on the second photodiode, and a first band limit filter structure that is formed on the nano-optical filter structure.

Optics-based fingerprint sensor, electric device including optics-based fingerprint sensor, and operation method of electric device

An image processing method includes adjusting a brightness of each of a first image and a second image based on a first exposure time when the first image is captured and a second exposure time when the second image is captured, respectively, the first and second images being generated by capturing a same object under different light conditions, estimating an intensity of light, reaching the object when the second image is captured, based on the adjusted brightness of each of the first and second images, separating the second image into two or more regions according to the estimated intensity of light, determining a target brightness that a final result image is to have, adjusting the brightness of the second image, by different amounts for each of the separated regions, based on the target brightness and generate the final result image based on the adjusted brightness of the second image.

Image processing method for improving image quality and image processing device therewith

Growing community of inventors

Suwon-si, South Korea

Wonho Cho