Researching and manufacturing 3D scanning devices suitable for each scanning object has an increasing demand in industry and in life. The field of crime scene examination in the police profession in our country is also demanding innovation in line with the digital data platforms that the government is building. Grasping that practical need, the research team has researched and manufactured a 3D scanning device system including 1 mobile scanning device using infrared laser according to the Time of Flight principle and 1 static scanning device using structured light Gray Code. The device system is capable of 3D scanning and rendering large spatial areas with accuracy about 1 mm, thin tissues in 3D space at crime scenes, vehicle accidents, etc., and samples collected at the scene with an accuracy about 0.1 mm, contributing to improving the efficiency of experimental investigation.

Keywords : Structured Lighting, Time of Flight (TOF), Crime Scene, Virtual Reality (VR), Augmented Reality (AR).