Research On Based On The Transformation And CCD Camera Image Mosaicing Positioning Technology

In recent years, the spatial location technology in digital image processing fields andintelligent video monitoring sector has become a big research hot spot Point, and is widelyapplied in the security system, security system, traffic management system, military fields,etc.At present, based on the spot image space positioning technology is still dominant. Makethe often used in smaller monitoring sites, and not to the whole scene monitoring in arbitrarytarget positioning, and the working staff of the load is bigger, have already can’t meet timely,accurate, Effectively in the environment of within the target positioning requirement ofintelligent monitoring. Therefore, based on the perspective transformation of CCD cameraimage mosaicing positioning technology is to meet the requirements of the one of the means.Based on the perspective transformation of CCD camera image mosaicing positioningtechnology, is the use of many sets of ordinary camera collection to the same large monitoringscene of local image, In not consider image distortion deformation, the use of video cameras toexternal parameters to establish correction model, will be the splicing into a picture of globalimage, and then control point information, indirectly establish image coordinate system and thecorresponding relations between the world coordinate system, to realize the target location.Especially suitable for large scene, such as shopping malls, large warehouse, museums, stadium,etc. This thesis mainly research contents as follows:1, the use of modulation contrast and the overall brightness or histogram matching, reducelocal image between whole brightness difference, make after mosaics global image naturalbeauty, as far as possible to reduce splicing gap;2, use the image itself double vanishing point features and locus of control information,through the camera external parameters to establish correction model, eliminate perspectivephenomenon, reconstruction scenes;3, using the traditional image matching algorithm, the picture from the same monitoringscene perspective correction image, joining together into a picture of global image, can restorethe outline of the scene;4, indirect image coordinate system and the world coordinate system to establish thecorresponding relationship between, again use control point of the actual distance, achieve thegoal of space positioning.Based on the perspective transformation of CCD camera image mosaicing positioningtechnology, through the multiple groups of experimental data analysis, to a certain extent,realize the target’s spatial orientation.