Measuring the three-dimensional kinematics of a free-swimming koi carp by video tracking method

Wu, Guanhao

doi:10.1016/s1672-6529(09)60190-6

Cited by 11 publications

(11 citation statements)

References 15 publications

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“…For this reason, the tracking effect is poor in case of complicated motion or occlusion. Wu [13] introduced a tracking system to obtain the 3-D kinematic parameters in fish swimming by simultaneously taking images from the ventral view and the lateral view with two cameras. This system can obtain the motion parameters of a fish swimming, which is beneficial to behavior analysis.…”

Section: Related Workmentioning

confidence: 99%

3-D Video Tracking of Multiple Fish in a Water Tank

et al. 2019

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Study on fish behavior is essential to fishery development and water environment protection. Quantitative analysis of fish behavior is impossible without information on fish trajectories. Although the computer vision techniques have provided an effective approach to the collection of fish trajectories, it is still challenging to track fish groups accurately and robustly due to fish appearance variations and frequent occlusions. In this paper, a skeleton-based method for 3-D tracking of fish group is proposed. First, skeleton analysis is performed to simplify the top-and side-view objects into representation of feature points. Next, the feature points under the top view are associated to obtain the top-view trajectories of objects. Finally, the epipolar constraint and the motion continuity constraint are used to match the top-view trajectories with the side-view feature points, thereby obtaining the 3-D trajectories of objects. Experimental results demonstrate the ability of the proposed method to track fish group more effectively than other state-of-theart methods.INDEX TERMS Fish tracking, 3-D tracking, skeleton analysis, motion trajectory.

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Section: Related Workmentioning

confidence: 99%

3-D Video Tracking of Multiple Fish in a Water Tank

et al. 2019

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“…The method can obtain swimming trajectory and velocity of a zebrafish. Wu [ 10 ] introduced a tracking system for measuring 3D kinematics of swimming fish by capturing images from the ventral view and the lateral view of the fish with two cameras. The system can track a free-swimming fish in a glass tank and obtain the 3D kinematics of the fish during a continuous swimming.…”

Section: Related Workmentioning

confidence: 99%

Feature point based 3D tracking of multiple fish from multi-view images

Qian

Chen

2017

PLoS ONE

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A feature point based method is proposed for tracking multiple fish in 3D space. First, a simplified representation of the object is realized through construction of two feature point models based on its appearance characteristics. After feature points are classified into occluded and non-occluded types, matching and association are performed, respectively. Finally, the object's motion trajectory in 3D space is obtained through integrating multi-view tracking results. Experimental results show that the proposed method can simultaneously track 3D motion trajectories for up to 10 fish accurately and robustly.

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“…The strategy of center of mass of the mudskipper is similar with Ref. [20]. From t = 0 s to t = 0.2 s, the displacement increase gradually, and reach the peak value of 6.2 mm in the time of t = 0.2 s. Then the displacement of the central of mass decrease quickly from t = 0.2 s to t = 0.27s, getting close to initial value of t = 0 s. The change of displacement of central of mass reveals the fact that the mudskipper uses pectoral fins for their primary mode of locomotion on land.…”

Section: Movements Of Mudskipper On Glassmentioning

confidence: 99%

Experimental study on morphology and kinematics of mudskipper in amphibious environments

Wang

Liu

et al. 2013

2013 IEEE International Conference on Robotics and Biomimetics (ROBIO)

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Mudskippers exhibit the unusual feature of the fact that they not only can walk on land, but also uniquely adapt to intertidal habitats, their excellent amphibious performance inspire many researchers to develop amphibious biomimetic robots. In this paper, the morphological parameters of the mudskipper were measured. Then, a simple and efficient high speed photography system was introduced to investigate the kinematics of live mudskipper. In order to explore the kinematics of the mudskipper in amphibious environment, gelatin was used as an analogue for mud on the basis of their similar mechanical properties. Then, the image sequence of the mudskipper in water, on gelatin and glass were concretely studied with the help of digital image process, respectively. The tracked body midline of the mudskipper in water and on gelatin are obtained, we demonstrate that the mudskipper uses both body and pectoral fins for locomotion in water and on gelatin simultaneously, while only uses pectoral fins for locomotion on land. The speed and the related angle of the mudskipper were also calculated, the speed in water is much faster than on gelatin. The displacement of the center of mass of the mudskipper on glass is also calculated. The performance of the mudskipper in different environments is very instructional and actual significance to mimic an amphibious robot.

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Measuring the three-dimensional kinematics of a free-swimming koi carp by video tracking method

Cited by 11 publications

References 15 publications

3-D Video Tracking of Multiple Fish in a Water Tank

3-D Video Tracking of Multiple Fish in a Water Tank

Feature point based 3D tracking of multiple fish from multi-view images

Experimental study on morphology and kinematics of mudskipper in amphibious environments

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