公开(公告)号：US11721004B2

公开(公告)日：2023-08-08

申请号：US17495975

申请日：2021-10-07

Applicant: HANWHA TECHWIN CO., LTD.

Inventor： Jin Wook Huh ,  Ki Rim Lee

IPC: G06T5/40 ,  H04N23/741 ,  G06T5/00

CPC classification number: G06T5/40 ,  G06T5/009 ,  H04N23/741 ,  G06T2207/10048 ,  G06T2207/30232

Abstract: A thermal image processing method includes determining a blending ratio of a first equalization algorithm to a second equalization algorithm that are different from each other, based on a result of analyzing an original histogram of an original thermal image; generating a first corrected thermal image obtained by applying the first equalization algorithm and the second equalization algorithm to the original thermal image according to the blending ratio; adjusting the blending ratio by comparing a corrected histogram of the first corrected thermal image with the original histogram; and generating a second corrected thermal image obtained by applying the first equalization algorithm and the second equalization algorithm to the original thermal image according to the adjusted blending ratio.

公开(公告)号：US20200226728A1

公开(公告)日：2020-07-16

申请号：US16423786

申请日：2019-05-28

Applicant: HANWHA TECHWIN CO., LTD.

Inventor： Seung Jin Han ,  Geon Hyoung Lee ,  Byung Joon Song ,  Han Seok Seo ,  Bo A Jung ,  Jin Wook Huh ,  Ki Rim Lee

IPC: G06T5/40 ,  G06T7/00

Abstract: Disclosed herein is a method and apparatus for processing a thermal image. The method includes: performing histogram stretching on thermal image data of the thermal image; and adjusting a histogram stretching scale for thermal image data of a next frame using histogram data of the thermal image data on which the histogram stretching is performed. As a result, it is possible to mitigate that an image becomes less recognizable as thermal image data is deteriorated or saturated.