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This paper proposes a reliable 3D fish tracking method using a novel master-slave camera setup. Instead of conventional dynamic models that rely on prior knowledge about target kinematics, the proposed method learns the kinematic model with a Long Short-Term Memory (LSTM) network. On this basis, the 3D state of fish at each moment is predicted by LSTM network. We propose to use an innovative master-view-tracking-first...
3D motion data of fish school is more valuable than 2D data for behavior and other researches. This paper proposes to use a master view tracking first strategy based on a novel master-slave camera setup. On this basis, fish are firstly tracked in master view in 2D after being extracted via an eye-focused Gaussian Mixture Model (E-GMM) detector. Then 3D trajectories are reconstructed by associating...
The vision system of an autonomous robot can obtain and analyze the necessary environmental information used for autonomous decisions. The processing and recognition of the images captured through the autonomous robot visual system is discussed in this paper. The discussion mainly includes three key issues, namely the extraction of image region of interest, the canceling of image inverse projection...
This paper introduces the vision technology for auto-navigation on the lunar surface in CE-3 project. The basic principle of stereo vision by navigation cameras and hazard cameras is explicated. The idiographic reality including inner parameter correction, epipolar line rectification, DOG filter, dense matching, disparity map filter and 3D coordinate calculation are described in details and the process...
A composite camera calibration method is presented, in which step-by-step calibration based on coplanar targets is taken in the process of determining the extrinsic and intrinsic parameters of camera and the least squares method is taken for solving radial distortion parameters and further iterative optimization. Moreover among the identification of calibration points, the encoding unit is introduced...
This paper presents the way to realize the analysis system of vehicle impact based on dynamic image sequence, and discusses some key technologies: import the method of image recovering based on atmospheric physical model to reduce the effect on image quality made by atmosphere; present the amalgamation method of background subtraction and temporal difference to realize fast detection to moving object...
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