Translator Disclaimer
1 December 1991 Endoscopic inspection using a panoramic annular lens
Author Affiliations +
Endoscopy is a technique for imaging the inner part of a volume or cavity. Such techniques have applications in many areas, such as medicine, civil engineering, and aerospace; indeed, anywhere tubes and pipes are involved. The present paper discusses a method of endoscopy which utilizes a unique panoramic annular lens to obtain a flat two-dimensional annular image of the 360 degree surround of the optical system. Although the distortions involved in the optical mapping to produce such an image are not very severe, and the images can be interpreted by inspection, computer algorithms are introduced to linearize the images so as to simplify their interpretation.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Donald R. Matthys, John A. Gilbert, and Joseph T. Puliparambil "Endoscopic inspection using a panoramic annular lens", Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991);


Detection Of Cracks By Moire And Holography
Proceedings of SPIE (October 25 1982)
Ophthalmic lenses testing by moire deflectometry
Proceedings of SPIE (December 01 1991)
Influence of fixing stress on the sensitivity of HNDT
Proceedings of SPIE (December 01 1991)
Moire measurements using a panoramic annular lens
Proceedings of SPIE (December 01 1991)
New Type Of Holographic Nondestructive Tire Tester
Proceedings of SPIE (December 13 1983)
Image processing for x-ray inspection of pistachio nuts
Proceedings of SPIE (March 28 2001)

Back to Top