A fast approach for omnidirectional surveillance with multiple virtual perspective views

Findeisen, Michel; Meinel, Lars; Hes, Markus; Apitzsch, André; Hirtz, Gangolf

doi:10.1109/eurocon.2013.6625187

Cited by 15 publications

(13 citation statements)

References 4 publications

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“…• The calibration method for determination of the camera extrinics shall be improved by an Three-View Optimization Approach. • We plan to introduce virtual perspective RGB-D cameras (see [1]) in order to accelerate the computation further.…”

Section: Discussionmentioning

confidence: 99%

“…To roughly rectify each virtual stereo camera SCam cyl k , the cylindrical cameras are rotated around their z-axes towards their associate cylindrical camera by an angle of 1 3 π in accordance with subsection V-A …”

Section: B Extrinsic Initialization Of Cylindrical Camerasmentioning

confidence: 99%

“…As described in [1] the virtual cameras can be fully described by their intrinsic parameters K cyl j and extrinsic parameters C cyl j and R cyl j . See section III.…”

Section: A Virtual Cylindrical Camerasmentioning

confidence: 99%

“…Imaging Process Figure 3 shows images taken by the fisheye cameras. By following the principles of [1] and the calibration information from section V, we can generate six rectified cylindrical images belonging to Cam cyl j . See Figure 4.…”

Section: Stereo Computationmentioning

confidence: 99%

“…One approach to achieve this goal is the reduction of the overall number of applied sensors. In [1] we show how the usage of omnidirectional sensors i.e. fisheye cameras can efficiently be combined with state-of-the-art algorithms for indoor surveillance tasks.…”

Section: Introductionmentioning

confidence: 99%

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Trinocular Spherical Stereo Vision for Indoor Surveillance

Findeisen

Hirtz

2014

2014 Canadian Conference on Computer and Robot Vision

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Stereo vision based sensors are widely used for indoor surveillance applications. Besides the demand for increasing performance the reduction of the overall number of sensors is the crucial issue. The central goal is the reduction of complexity and overall cost of the system. One opportunity is to use wide angle view based or even omnidirectional stereo vision sensors. We present a powerful approach which uses three omnidirectional cameras in order to compute full hemispherical depth information. By employing this, we can cover a complete room using only one sensor.

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Section: Discussionmentioning

confidence: 99%

Section: B Extrinsic Initialization Of Cylindrical Camerasmentioning

confidence: 99%

“…As described in [1] the virtual cameras can be fully described by their intrinsic parameters K cyl j and extrinsic parameters C cyl j and R cyl j . See section III.…”

Section: A Virtual Cylindrical Camerasmentioning

confidence: 99%

Section: Stereo Computationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Trinocular Spherical Stereo Vision for Indoor Surveillance

Findeisen

Hirtz

2014

2014 Canadian Conference on Computer and Robot Vision

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A trinocular omnidirectional stereo vision system for high-precision RGB-D acquisition

Findeisen

Meinel

Hirtz

2014

Proceedings ELMAR-2014

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A data set providing synthetic and real-world fisheye video sequences

Eichenseer

Kaup

2016

2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

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In video surveillance as well as automotive applications, so-called fisheye cameras are often employed to capture a very wide angle of view. As such cameras depend on projections quite different from the classical perspective projection, the resulting fisheye image and video data correspondingly exhibits non-rectilinear image characteristics. Typical image and video processing algorithms, however, are not designed for these fisheye characteristics. To be able to develop and evaluate algorithms specifically adapted to fisheye images and videos, a corresponding test data set is therefore introduced in this paper. The first of those sequences were generated during the authors' own work on motion estimation for fisheye videos and further sequences have gradually been added to create a more extensive collection. The data set now comprises synthetically generated fisheye sequences, ranging from simple patterns to more complex scenes, as well as fisheye video sequences captured with an actual fisheye camera. For the synthetic sequences, exact information on the lens employed is available, thus facilitating both verification and evaluation of any adapted algorithms. For the real-world sequences, we provide calibration data as well as the settings used during acquisition. The sequences are freely available via www.lms.lnt.de/fisheyedataset/.

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A fast approach for omnidirectional surveillance with multiple virtual perspective views

Cited by 15 publications

References 4 publications

Trinocular Spherical Stereo Vision for Indoor Surveillance

Trinocular Spherical Stereo Vision for Indoor Surveillance

A trinocular omnidirectional stereo vision system for high-precision RGB-D acquisition

A data set providing synthetic and real-world fisheye video sequences

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