Continuous Frame 3D Point Cloud Annotation

The Difference Between Image Data and Point Cloud Data
First, the perspective is different. Image data is a two-dimensional representation of the real world, while a Point Cloud contains three-dimensional information( a coordinate system), which can be projected to a variety of views.
Second, the data structure is different. Image data is regular, dense, and in order, while point cloud data is irregular, disordered, and sparse.

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