Computational Calibration and Correction for Gigapixel Imaging System
Large field of view (FOV) imaging with high spatial resolution has been increasingly required for numerous applications in recent years. Obviously, conventional photosensitive detector with tens of megapixels cannot satisfy the requirement. As a result, gigapixel cameras based on the multi-aperture imaging have become a possible solution to overcome the above limitation. In this paper, we developed an alternative gigapixel imaging system which implements the multiple CMOS chips mosaic in the external optical path and presented the computation methods for calibrating the vignetting distributions and other geometric parameters in the system. Consequently, our gigapixel imaging system has achieved the performance of 24 Hz, 0.2Giga, single-pixel resolution.
KeywordsGigapixel Multi-aperture imaging External optical path mosaic System calibration
- 1.Onaka P, Tonry JL (2008) The pan-starrs gigapixel camera #1 and stargrasp controller results and performance. Proceedings of SPIE - The International Society for Optical Engineering 7014:70140D-70140D-12Google Scholar
- 2.Leininger B, Antoniades J, Stevens M, Targove JD (2008) Autonomous real-time ground ubiquitous surveillance-imaging system (argus-is). Proceedings of SPIE - The International Society for Optical Engineering 6981:69810H-69810H-11Google Scholar
- 8.Zheng Y, Yu J, Kang SB, Lin S (2008) Single-image vignetting correction using radial gradient symmetry. Computer vision and pattern recognition, 2008. CVPR 2008. IEEE Conf IEEE 31:1–8Google Scholar
- 9.Zhang Z, Zou S, Zuo Z (2011) An improved algorithm of mask image dodging for aerial image. MIPPR 2011: remote sensing image processing. Geogr Inform Syst Other Appl 8006:420–430Google Scholar
- 10.Gribbon KT, Bailey DG (2004). A novel approach to real-time bilinear interpolation. IEEE international workshop on electronic design, test and applications. IEEE Computer Society. pp~126Google Scholar