The Automatic Correction Research Of Multi-projector Display System

With the rapid development of computer graphics and image processing technologies and multi-projector display technology,the multi-projector display system made a wide range of applications in many areas of production and life.However,projection screen generates geometric distortion and color differences because of the difference between hardware devices and projection environment in the multi-projector display system.Under this circumstance,the correction process in the multi-projector display system display screen is the current hotspot nowadays.This thesis describes the geometric correction and color multi-projector projection screen equipment calibration process flow design through the analysis of multi-projector display technology in the relevant basic theory and techniques,including the basic principles of correction,algorithm design,etc.And based on the theoretical and technical analysis,this thesis also introduces the design and implementation of a multi-projector display software system,which could make a geometric correction and color correction for the projection screen multi-projector device,and ensure the final projection screen does not appear large geometric distortion and color distortion.Firstly,this thesis introduces the relevant theoretical and technical basis of multi-projector display system,including the types of projectors equipment,multi-projector display system architecture,the necessity of correcting the projection screen and the specific calibration process,etc.Secondly,this thesis introduces the correction processing geometric correction and color correction studies,including the basic principles and core correction algorithm design.Finally,this thesis design and realize a multi-projector display system,and make a detailed description of the operation of the system design and implementation,including system development environment,functional design and functional implementation process,and display and analysis the effect of the correction processing system.The multi-projector display system described in this thesis could make a multi-projector calibration processing in the flat-screen projection environment,and reduce the degree of geometric distortion and color distortion of each sub-projection screen that appears in the splicing process,so the work in this thesis has some practical significance and value.