LAI, SHANG HONG,赖尙宏,賴尙宏,LEE, TUNG YING,李东颖,李東穎,ZHANG, CI SHAN,张慈珊,張慈珊
申请号：
TW102112754
公开号：
TWI579800B
申请日:
2013.04.10
申请国别(地区):
TW
年份:
2017
代理人:
摘要：
An image processing method applicable to images captured by a wide-angle zoomable lens comprises: A. utilizing the wide-angle zoomable lens to photograph a correction pattern under a predetermined focal length to obtain a distorted image corresponding to the correction pattern； B. obtaining a distortion parameter at the predetermined focal length by calculation for the distortion image； C. using the wide-angle zoomable lens to obtain the distorted image of a specific target under another focal length； D. obtaining a new distortion parameter by calculation based on the distortion parameter obtained from Step B and relationship between the another focal length and the predetermined focal length； and E. using the new distortion parameter to correct distortion of the distorted image corresponding to the specific target. The present invention can perform distortion correction for real-time images captured by the wide-angle zoomable lens.一種適用於廣角變焦鏡頭拍攝到之影像的影像處理方法，包含：A、利用該廣角變焦鏡頭在一預定焦距下拍攝一校正圖案，以取得對應該校正圖案的一扭曲影像；B、計算得出該扭曲影像在該預定焦距下的扭曲參數；C、利用該廣角變焦鏡頭在另一焦距下取得一個拍攝對象的扭曲影像；D、使用步驟B得出的該扭曲參數，並根據該另一焦距與該預定焦距間的倍數關係，計算出一新的扭曲參數；以及E、使用該新的扭曲參數對與該拍攝對象相應之扭曲影像進行校正。本發明能夠使廣角變焦鏡頭拍攝到的影像進行即時的扭曲校正。
