Multi-scale Contour Model Transformation of 3D Point Cloud Based on Morphing Technology

Anewmulti scalecontourmodelmorphingtransformationmethodof3Dpointcloudispro posedbydrawingonmorphingtechnology.First,thespatialdistributionof3Dpointcloudisanalyzedandslicedwitharegularintervalinsomeanaxisdirection(likeaxis犣）．Ａｐｏｉｎｔｃｌｏｕｄｓｔｒａｔｉｆｉｅｄｍｏｄｅｌｉｓｃｒｅａｔｅｄａｎｄｓｔｒａｔｉｆｉｅｄｃｏｎｔｏｕｒｓａｒｅｅｘｔｒａｃｔｅｄｂｙｔａｋｉｎｇｓｔｒａｔｉｆｉｅｄｐｏｉｎｔｃｌｏｕｄａｓｔｈｅｕｎｉｔｓ．Ｔｈｅｎ，ｔｈｅｓｔｒａｔｉｆｉｅｄｃｏｎｖｅｘｐｏｌｙｇｏｎｓｃｏｎｓｔｒｕｃｔｅｄｗｉｔｈｓｔｒａｔｉｆｉｅｄｄａｔａｓｅｔｓａｒｅａｃｔｅｄａｓｔｈｅｍｉｎｉｍａｌｓｃａｌｅｃｏｎｔｏｕｒｂｒｏｋｅｎｌｉｎｅｓ，ａｎｄｔｈｅｒｅｍａｉｎｉｎｇｕｎｏｒｇａｎｉｚｅｄｐｏｉｎｔｓａｒｅｃｌａｓｓｉｆｉｅｄｔｏｔｈｅｃｏｒｒｅｓｐｏｎｇｄｉｎｇｃｏｎｖｅｘｅｄｇｅｓｂｙａｃｅｒｔａｉｎｌａｗ．Ｉｎｔｒｏｄｕｃｉｎｇｔｈｅｓｃａｌｅｐａｒａｍｅｔｅｒｔａｎｄｃａｌｃｕｌａｔｉｎｇｔｈｅｓｅｌｅｃｔｉｏｎｔｉｍｅｐａｒａｍｅｔｅｒｓｏｆｐｏｉｎｔｓ，ｃｏｎｔｉｎｕｏｕｓｔｒａｎｓｆｏｒｍｉｎｇｍｅｄｉｕｍｓｃａｌｅｃｏｎｔｏｕｒｂｒｏｋｅｎｌｉｎｅｓａｒｅｃｏｎｓｔｒｕｃｔｅｄ．Ｆｉｎａｌｌｙ，ｓｍｏｏｔｈｓｔｒａｔｉｆｉｅｄｃｏｎｔｏｕｒｓａｒｅｇａｉｎｅｄｂｙｆｉｔｔｉｎｇｓｔｒａｔｉｆｉｅｄｃｏｎｔｏｕｒｂｒｏｋｅｎｌｉｎｅｓ，ａｎｄｔｈｅｍｕｌｔｉｓｃａｌｅｃｏｎｔｏｕｒｍｏｄｅｌｓｏｆ３Ｄｐｏｉｎｔｃｌｏｕｄａｒｅｐｒｅｓｅｎｔｅｄ．Ｔｗｏｅｘｐｅｒｉｍｅｎｔｓｄｅｍｏｎｓｔｒａｔｅｔｈａｔｔｈｅｍｅｔｈｏｄｐｒｏｐｏｓｅｄｉｎｔｈｉｓｐａｐｅｒｃａｎｄｅａｌｗｉｔｈｔｈｅｏｒｇａｎｉｚｅｄｐｏｉｎｔｃｌｏｕｄａｎｄｔｈｅｕｎｏｒｇａｎｉｚｅｄｐｏｉｎｔｃｌｏｕｄ．Ｔｈｅｇａｉｎｅｄｃｏｎ toursconformwiththenaturesofcommoncontourandwillnotresultintheproblemofintercrossontheedge.Meanwhile,themethodrunsquickly.