A Simple and Effective Correction Method for Distorted Image from Camera Lens System

2006 ◽  
Author(s):  
Donghun Lee ◽  
Seunghwan Choi ◽  
Doeun Kim ◽  
Taeyong Kuc
Keyword(s):  
Correction Method ◽  
Lens System ◽  
Distorted Image ◽  
Camera Lens

Design of omnidirectional camera lens system with catadioptic system

2013 ◽  
Author(s):  
Jae Heung Jo ◽  
Sangon Lee ◽  
Hyeon Jin Seo ◽  
Jung Hwan Lee ◽  
Joon Mo Kim
Keyword(s):  
Lens System ◽  
Omnidirectional Camera ◽  
Camera Lens

Researches on Image Distortion Correction Method Based on Image Magnification

2013 ◽  
Vol 650 ◽  
pp. 548-552
Author(s):  
Xiao Ying Jiang ◽  
Jian Liang Xu ◽  
Xiao Feng Fang ◽  
Xin Xing Zhang ◽  
Yin Ling Peng ◽  
...  
Keyword(s):  
Simple Algorithm ◽  
Correction Method ◽  
Image Distortion ◽  
Distortion Correction ◽  
New Method ◽  
Distorted Image ◽  
Image Magnification ◽  
Linear Operation ◽  
The Relationship ◽  
Computing Speed

A new method to correct a distorted image is proposed in this paper, which is based on the relationship between image magnification and distortion coefficient. First, the image magnification is solved. Then, the image distorted coefficient can be obtained with simple linear operation. Ultimately, experiments are carried out, and the correction results obtained by the collinear points-based method are compared with the method proposed in this paper. The results show that both provide good correction effects. At the same time, the accuracy of the new proposed method is higher. The proposed method takes the advantages of simple algorithm, few known conditions and fast computing speed. The new method has great significance in engineering metrology and complex condition.

Correction of CCD Camera Lens Vignetting

2013 ◽  
Vol 373-375 ◽  
pp. 603-607 ◽  
Author(s):  
Si Yu Chen ◽  
Shu Guang Dai ◽  
Ping An Mu
Keyword(s):  
Optical System ◽  
Ccd Camera ◽  
Correction Method ◽  
Good Stability ◽  
Measuring Error ◽  
Manufacturing Processes ◽  
Camera Lens ◽  
Two Factors ◽  
The Impact

Due to the impact of the lens optical system and the different manufacturing processes, there could be causing the vignetting when using a CCD camera to take pictures. This paper analyzes the causes of the lens vignetting and put forward a method for reducing this error to improve the accuracy of the intensity of illumination detection. Firstly, according to the analysis of the existing research on the camera lens, concluded that there are two factors that cause vignetting. Secondly, based on the conclusion, do large amounts of test in each case. Analyze for the influence of illumination test in each case. Finally, the article put forward a set of vignetting correction method to correct the image be collected in a fixed aperture. The result shows that the method can effectively reduce vignetting measuring error and has a good stability.

Liquid-filled underwater camera lens system

1998 ◽  
Author(s):  
John S. Laudo ◽  
Ken Wurm ◽  
Cliff Dodson
Keyword(s):  
Lens System ◽  
Camera Lens ◽  
Underwater Camera

Tolerance optimization of a mobile phone camera lens system

2011 ◽  
Vol 50 (23) ◽  
pp. 4688 ◽  
Author(s):  
Sangjin Jung ◽  
Dong-Hoon Choi ◽  
Byung-Lyul Choi ◽  
Ju Ho Kim
Keyword(s):  
Mobile Phone ◽  
Lens System ◽  
Camera Lens ◽  
Tolerance Optimization ◽  
Mobile Phone Camera
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