Abstract
Precise stereo-based depth estimation at large distances is challenging: objects become very small, often exhibit low contrast in the image, and can hardly be separated from the background based on disparity due to measurement noise. In this paper we present an approach that overcomes these problems by combining robust object segmentation and highly accurate depth and motion estimation. The segmentation criterion is formulated as a probabilistic combination of disparity, optical flow and image intensity that is optimized using graph cuts. Segmentation and segment parameter models for the different cues are iteratively refined in an Expectation-Maximization scheme. Experiments on real-world traffic scenes demonstrate the accuracy of segmentation and disparity results for vehicles at distances of up to 180 meters. The proposed approach outperforms state-of-the-art stereo methods, achieving an average object disparity RMS error below 0.1 pixel, at typical object sizes of less than 15x15 pixels.
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References
Altunbasak, Y., Tekalp, A.M., Bozdagi, G.: Simultaneous Motion-Disparity Estimation and Segmentation from Stereo. In: Proc. ICIP (1994)
Baker, S., Gross, R., Matthews, I.: Lucas-Kanade 20 Years On: A Unifying Framework: Part 4. Tech. Rep. CMU-RI-TR-04-14, Carnegie Mellon Univ. (2004)
Bleyer, M., Rother, C., Kohli, P., et al.: Object Stereo - Joint Stereo Matching and Object Segmentation. In: Proc. CVPR (2011)
Boltz, S., Herbulot, A., Debreuve, E., et al.: Motion and Appearance Nonparametric Joint Entropy for Video Segmentation. IJCV 80(2), 242–259 (2008)
Boykov, Y., Kolmogorov, V.: An Experimental Comparison of Min-Cut/Max-Flow Algorithms for Energy Minimization in Vision. TPAMI 26(9), 1124–1137 (2004)
Boykov, Y., Veksler, O., Zabih, R.: Fast Approximate Energy Minimization via Graph Cuts. TPAMI 23(11), 1222–1239 (2001)
Boykov, Y., Funka-Lea, G.: Graph Cuts and Efficient N-D Image Segmentation. IJCV 70(2), 109–131 (2006)
Brox, T., Rousson, M., Deriche, R., et al.: Colour, Texture, and Motion in Level Set Based Segmentation and Tracking. IVC 28(3), 376–390 (2010)
Chang, Y.J., Liu, H.H., Chen, T.: Improving Sub-Pixel Stereo Matching with Segment Evolution. In: Proc. ICIP (2010)
Cremers, D., Yuille, A.: A Generative Model Based Approach to Motion Segmentation. In: Michaelis, B., Krell, G. (eds.) DAGM 2003. LNCS, vol. 2781, pp. 313–320. Springer, Heidelberg (2003)
Enzweiler, M., Gavrila, D.M.: Monocular Pedestrian Detection: Survey and Experiments. TPAMI 31(12), 2179–2195 (2009)
Gehrig, S.K., Badino, H., Franke, U.: Improving Stereo Sub-Pixel Accuracy for Long Range Stereo. CVIU 116(1), 16–24 (2012)
Gehrig, S.K., Eberli, F., Meyer, T.: A Real-Time Low-Power Stereo Vision Engine Using Semi-Global Matching. In: Fritz, M., Schiele, B., Piater, J.H. (eds.) ICVS 2009. LNCS, vol. 5815, pp. 134–143. Springer, Heidelberg (2009)
Hirschmüller, H.: Accurate and Efficient Stereo Processing by Semi-Global Matching and Mutual Information. In: Proc. CVPR (2005)
Horn, B.K.P., Schunck, B.G.: Determining Optical Flow. Artificial Intelligence 17(1), 185–203 (1981)
Khan, S., Shah, M.: Object Based Segmentation of Video Using Color, Motion and Spatial Information. In: Proc. CVPR (2001)
Lucas, B.D., Kanade, T.: An Iterative Image Registration Technique with an Application to Stereo Vision. In: Proc. Int. Joint Conf. on Artificial Intel. (1981)
Schoenemann, T., Cremers, D.: Near Real-Time Motion Segmentation Using Graph Cuts. In: Franke, K., Müller, K.-R., Nickolay, B., Schäfer, R. (eds.) DAGM 2006. LNCS, vol. 4174, pp. 455–464. Springer, Heidelberg (2006)
Unger, M., Werlberger, M., Pock, T., et al.: Joint Motion Estimation and Segmentation of Complex Scenes with Label Costs and Occlusion Modeling. In: Proc. CVPR (2012)
Wedel, A., Pock, T., Zach, C., Bischof, H., Cremers, D.: An Improved Algorithm for TV-L 1 Optical Flow. In: Cremers, D., Rosenhahn, B., Yuille, A.L., Schmidt, F.R. (eds.) Visual Motion Analysis. LNCS, vol. 5604, pp. 23–45. Springer, Heidelberg (2009)
Xu, L., Chen, J., Jia, J.: A Segmentation Based Variational Model for Accurate Optical Flow Estimation. In: Forsyth, D., Torr, P., Zisserman, A. (eds.) ECCV 2008, Part I. LNCS, vol. 5302, pp. 671–684. Springer, Heidelberg (2008)
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Pinggera, P., Franke, U., Mester, R. (2013). Highly Accurate Depth Estimation for Objects at Large Distances. In: Weickert, J., Hein, M., Schiele, B. (eds) Pattern Recognition. GCPR 2013. Lecture Notes in Computer Science, vol 8142. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-40602-7_3
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DOI: https://doi.org/10.1007/978-3-642-40602-7_3
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