Wing Markers from Motion Capture of Harris Hawk Flight

Data from wing markers during flight by a Harris' hawk (Toothless) flying between two perches. Perches are 5m or 12m apart. Three markers per wing (two on handwing, one on arm wing) and two on the tail. Contents: <strong>XYZ</strong> -- The wing and tail markers using the room coordinate system, where the origin is the perch. The floor is 1.25m below the perch. <strong>backpack_XYZ</strong> -- the backpack (centre of the bird) position using the room coordinate system. One backpack position per frame. <strong>body_pitch</strong> -- the body pitch angle of the hawk measured from a vector drawn from the backpack to the tailpack along the body of the hawk. In degrees. <strong>xyz</strong> -- The wing and tail markers with backpack_XYZ as the origin. <strong>rot_xyz</strong> -- The wing and tail markers with backpack_XYZ as the origin and rotated such that the body pitch is removed. <strong>time</strong> -- 0 estimated from the hawk's starting jump. <strong>frame</strong> -- frame number from the original motion capture data set <strong>MarkerName</strong> -- the label for the marker. "Wingtip" and "primary" are on the hand wing, "secondary" is along the bottom of the arm wing. "Tailtip" on the outermost feathers of the tail. Also left and right are described. <strong>HorzDistance</strong> -- horizontal distance to the perch. <strong>FlightPhase</strong> -- estimated phase of flight based on horizontal distance to the perch. High amplitude flapping Medium amplitude flapping Low amplitude flapping Gliding/unpowered flight <strong>seqID, frameID, markerID </strong>-- These IDs are just used to subset data. <strong>sampleRate</strong> -- framerate of the camera本数据集包含一只哈里斯鹰（命名为Toothless）在两个栖木之间飞行时的翼部标记物运动数据。栖木间距为5米或12米。每侧翅膀设有3个标记物（手部翼区域2个，臂部翼区域1个），尾部设有2个标记物。 **XYZ**：采用房间坐标系的翼部与尾部标记物坐标，坐标系原点为栖木位置，地面位于栖木下方1.25米处。 **backpack_XYZ**：采用房间坐标系的背负传感器（鹰身中心点）位置，每帧对应一个背负传感器坐标。 **body_pitch**：鹰的身体俯仰角，单位为度，通过从背负传感器指向尾部传感器的向量沿鹰体方向计算得到。 **xyz**：以backpack_XYZ为原点的翼部与尾部标记物坐标。 **rot_xyz**：以backpack_XYZ为原点，且已消除身体俯仰角影响的翼部与尾部标记物坐标。 **time**：以哈里斯鹰初始起跳时刻为基准的时间戳（初始时刻记为0）。 **frame**：原始动作捕捉（motion capture）数据集中的帧编号。 **MarkerName**：标记物的标签。其中"翼尖（Wingtip）"与"初级飞羽（primary）"位于手部翼区域，"次级飞羽（secondary）"沿臂部翼的下缘分布；"尾尖（Tailtip）"位于尾部最外侧羽毛，同时标注了左右侧别。 **HorzDistance**：到栖木的水平距离。 **FlightPhase**：基于到栖木的水平距离估算的飞行阶段，包含：高振幅振翅、中振幅振翅、低振幅振翅、滑翔/无动力飞行。 **seqID, frameID, markerID**：仅用于数据子集划分的编号。 **sampleRate**：相机的帧率。