Debris motion in steady current flow

Each ‘.mat’ data contains a 3D matrix of 4*2000*75: • 2000 columns represent frame numbers of recorded video for each series. (which is more than enough just to be in a safe side). • 75 rows represent for 75 trials for each test series. • Different layers represent for: layer 3= x position in each frame, layer 2=theta in each frame. Each data file named according to the test set. (e.g. E1_0 which is a data set for E1_0 test series.)每个`.mat`格式的数据文件均包含一个4×2000×75的三维矩阵： • 2000列对应每个录制序列的视频帧数（预留充足冗余以保障实验安全性）。 • 75行对应每个测试序列的75次试次。 • 各维度层的含义如下：第3层为每帧的x轴位置，第2层为每帧的theta参数。 所有数据文件均按照其对应的测试集命名，例如`E1_0`即为对应E1_0测试序列的数据集。