Traces of proteins found on letters he wrote in 1457 and 1475 suggest he suffered from respiratory and skin diseases and could have had a condition known as hemolacria, which is when blood gets mixed in with tears. The findings add one more facet to the ruler's spine-chilling reputation.

It is suspected that prince Vlad suffered an erythropoiethic porphiria, which could be the reason for the development of certain peculiar characteristics of the vampires.

In LiDAR, laser light is sent from a source (transmitter) and reflected from objects in the scene. The reflected light is detected by the system receiver and the time of flight (TOF) is used to develop a distance map of the objects in the scene.

The object-wise feature extractors project LiDAR point clouds into 2D representations and generate the object proposals using 2D networks. Then, they regress the region proposals to predict the 3D bounding boxes.