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Kinect based real-time synthetic aperture imaging through occlusion

Abstract

Real-time and high performance occluded object imaging is a big challenge to many computer vision applications. In recent years, camera array synthetic aperture theory proves to be a potential powerful way to solve this problem. However, due to the high cost of complex system hardware, the severe blur of occluded object imaging, and the slow speed of image processing, the exiting camera array synthetic aperture imaging algorithms and systems are difficult to apply in practice. In this paper, we present a novel handheld system to handle those challenges. The objective of this work is to design a convenient system for real-time high quality object imaging even under severe occlusion. The main characteristics of our work include: (1) To the best of our knowledge, this is the first real-time handheld system for seeing occluded object in synthetic imaging domain using color and depth images. (2) A novel sequential synthetic aperture imaging framework is designed to achieve seamless interaction among multiple novel modules, and this framework includes object probability generation, virtual camera array generation, and sequential synthetic aperture imaging. (3) In the virtual camera array generation module, based on the integration of color and depth information, a novel feature set iterative optimization algorithm is presented, which can improve the robustness and accuracy of camera pose estimation even in dynamic occlusion scene. Experimental results in challenging scenarios demonstrate the superiority of our system both in robustness and efficiency compared against the state-of-the-art algorithms.

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Acknowledgments

This work is supported by the National Natural Science Foundation of China with Grant Number 61272288 and 61231016, NPU New AoXiang Star with Grant Number G2015KY0301 and 12GH0311, NPU New People and Direction with Grant Number 13GH014604, NSF grants IIS-CAREER-0845268 and IIS-1218156, and Foundation of China Scholarship Council with Grant Number 201206965020 and 201303070083.

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Correspondence to Tao Yang.

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Yang, T., Ma, W., Wang, S. et al. Kinect based real-time synthetic aperture imaging through occlusion. Multimed Tools Appl 75, 6925–6943 (2016). https://doi.org/10.1007/s11042-015-2618-1

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Keywords

  • See through occlusion
  • Kinect
  • Synthetic aperture imaging
  • Virtual camera array