Title :
Automatic DSM Generation form Aerial Three Line Array ADS40 Digital Images
Author :
Dazhao, Fan ; Song, Ji ; Rong, Lei ; Yongsheng, Zhang
Author_Institution :
Inf. Eng. Univ., Zhengzhou
Abstract :
A new image matching algorithm model is proposed in this paper to generate DSM from aerial three line array digital images. Through this model, multiple images (more than 2) can be matched simultaneously and the epipolar line constraint can be used indirectly. Theoretically, the occlusion and multiple solution problems, which are unavoidable in traditionally image matching process, can be greatly solved by this model. Assisted by known image orientation parameters, rough DSM can be automatically generated from the image matching results. Using digital images obtained by ADS40 airborne three line digital camera, experiments to extract, match and optimize grid points have been done. The algorithm model is verified by our experimental results to be effective and robust. At the end of this paper, problems remaining to be studied are presented.
Keywords :
CCD image sensors; image matching; ADS40 digital images; CCD digital camera; aerial three line array digital images; airborne three line digital camera; automatic digital surface model generation; epipolar line constraint; image matching algorithm; image orientation parameters; multiple images; Charge coupled devices; Charge-coupled image sensors; Digital cameras; Digital images; Image generation; Image matching; Instruments; Pixel; Robustness; Sensor systems; ADS40; CCD; Correlative Coefficient; DSM; POS;
Conference_Titel :
Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-1136-8
Electronic_ISBN :
978-1-4244-1136-8
DOI :
10.1109/ICEMI.2007.4350819
