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This paper addresses the problem of space-time stereo with active illumination and presents a formulation of this problem in the variational framework. Variational problems of this scale are computationally expensive to solve directly. We overcome this challenge by showing that speed-improving techniques, as the full-multi-grid and the multi-level-adaptation techniques, can be applied. We evaluate the performance of our method on 3 ground-truth datasets. The experimental results for synthetic and real datasets show that the combination of active illumination and variational space-time stereo improves the quality of the reconstruction on average by up to 3.1 times compared to a reconstruction from a single passive stereo image pair without active illumination.

Koninckx, T., Gool, L.V.: Real-time range acquisition by adaptive structured light. IEEE Transac. on Pattern Analysis & Machine Intelligence 28, 432–445 (2006)

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Bruhn, A., Weickert, J., Kohlberger, T., Schnörr, C.: A multigrid platform for real-time motion computation with discontinuity-preserving variational methods. Int. J. Comput. Vision 70, 257–277 (2006)

Sizintsev, M., Wildes, R.P.: Spatiotemporal stereo via spatiotemporal quadric element (stequel) matching. In: CVPR, pp. 493–500 (2009)

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A light microscope is an optical device that uses visible light for illumination and lenses to magnify a specimen or tissue section for detailed visualization.

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Cheng, A., Cheng, D.T.: Heritage and early history of the boundary element method. Engineering Analysis with Boundary Elements 29, 268–302 (2005)

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Ristivojevic, M., Konrad, J.: Space-time image sequence analysis: Object tunnels and occlusion volumes. IEEE Transactions on Image Processing 15, 364–376 (2006)

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Kolmogorov, V., Zabih, R.: Computing visual correspondence with occlusions via graph cuts. In: International Conference on Computer Vision, pp. 508–515 (2001)

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Diffused light is a more flattering light for portraits as it does not direct attention to any one part of the subject.

Kosov, S., Thormählen, T., Seidel, HP. (2011). Using Active Illumination for Accurate Variational Space-Time Stereo. In: Heyden, A., Kahl, F. (eds) Image Analysis. SCIA 2011. Lecture Notes in Computer Science, vol 6688. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-21227-7_70

Illumination Systems · Rapp · UGA-42 Caliburn. High-precision, modular, high-power density, ablation system · Cairn · MultiLine LaserBank · Rapp · UGA-42 GEO.

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2022110 — Brightfield microscopy is the conventional technique. It is suitable for observing the natural colors of a specimen. It can also observe stained ...

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Lighting techniques for machine vision ... The main task of lighting is to create contrast between the object features to be detected. A variety of parameters can ...

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Valgaerts, L., Bruhn, A., Zimmer, H., Weickert, J., Stoll, C., Theobalt, C.: Joint estimation of motion, structure and geometry from stereo sequences. In: Daniilidis, K., Maragos, P., Paragios, N. (eds.) ECCV 2010. LNCS, vol. 6314, pp. 568–581. Springer, Heidelberg (2010)

Scharstein, D., Szeliski, R.: A taxonomy and evaluation of dense stereo correspondence algorithms. International Journal of Computer Vision 47, 7–42 (2001)

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