The Study Of Reconstructing Crime Scene And Crime Scene Material Evidence Management

In the detective of the penal case, crime scene is the substanceless base of getting evidence and clue. Crime scene perambulation is the way of getting evidence and clue. In the tradition Crime scene perambulation, idiographic instance of crime scene just intuitionisticly exist in the brain of perambulator who join in the perambulation, and not all can roundly hold the whole crime scene and the result of the perambulation, but everyone need to know the most information of the crime scene. How to organically combine crime scene and the evidence , how to reconstruct a virtual crime scene by an objective and comprehensive way, and how to mostly share the crime scene information are urgent affaires for applying the material evidences to detective work. We find few domestic researches about crime scene reconstruction. In order to cruise in the virtual crime scene and manage variety of crime scene evidences in the system that has been developed, I reconstructs crime scene by virtual reality technology in the paper.Therefore, following tasks are contained in the paper:1 To rebuild the crime scene, many theories or methods about scene reconstruction based image have been analyzed. Finally texture mapping technology was chosen. Environment Mapping can rapidly reconstruct crime scene. In the process of texture mapping come true, anti-projection arithmetic of sphere panorama image has been studied and ameliorated for the texture coordinates.2 To browse the crime scene, many theories or methods for the realization of cruise in virtual crime scene have been investigated. Finally the concentric sphere arithmetic was chosen and ameliorated. The way of transferring material evidence information in the browse was studied.3 For the management of the material evidence, many theories were studied. Because of the demand of the crime scene, the system chooses the Microsoft SQL Server to set up material database, and uses ADO data module to operate the data. The category and getting way of material evidence have been analyzed, and the 3D models have been modeled.