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어안렌스 카메라의 영상왜곡보정처리 시스템 구현

Image Distortion Correction Processing System Realization for Fisheye Lens Camera

  • 발행 : 2007.11.30

초록

본 논문은 어안 렌즈 카메라의 영상 왜곡 보정 처리 시스템 구현에 관한 것이다. 영상 보정 처리 알고리즘은 역맵핑기법을 적용하고 실시간 처리를 위해 DSP 프로세서를 사용하여 시스템을 구현하였다. 알고리즘 적용시 카메라의 왜곡 계수는 실시간 처리를 위해 룩업 테이블화하여 처리한다. 실험 결과, 원영상과 각도변화에 대한 PSNR 변화는 8.3%정도로 안정적 자연스러우며, 화질보다는 실시간 처리에 중점을 두어 한 프레임 $720{\times}480$ 왜곡영상 처리 시간이 약 31.3ms 소요되었다.

A realization for image distortion correction processing system with DSP processor is presented in this paper. The image distortion correcting algorithm is realized by DSP processor for focusing on more real time processing than image quality. The lens and camera distortion coefficients are processed by the Lookup Tables and the correcting algorithm is applied to reverse mapping method for geometrical transform. The system experimentation results in the processing time about 31.3 msec $720{\times}480$ wide range image, and the image is stable and spontaneous to be about 8.3% average PSNR variation with changing a wide angle.

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참고문헌

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