| The caisson is a kind of decorate above indoor palaces high level buildings in ancient China high level buildings,such as temples,the temples of the gods of the throne or common decorative ceiling.The caisson appears,is not only highly practical China embodied in ancient architecture,but also the expression of Chinese traditional culture connotation in the traditional architectural decoration in depth.Caisson pattern in large scale,the content is very rich,the main structure extracted by caisson pattern contains many creative elements,can bring a lot of China contains the elements of traditional culture design for designers.The paper will use a texture recognition technology based on improved total variation method to remove the pattern of caisson pattern which is obvious,and then use the line extraction technology makes the pattern lines more clearly,to achieve the initial treatment on the caisson pattern.Finally,the paper will use two different methods to extract the main structure of the caisson pattern.The first method is based on the characteristics of the main structure of caisson pattern of straight lines are straight lines,including first using LSD detection algorithm to extract the linear pattern,then remove the lines which not meet the rules of the main structure,finally will retain the line to arrange,to get the final result.The second method uses mathematical morphology based on the profile of all contour extraction method to extract the caisson pattern,and then remove the smaller was not representative of the main structure of the pattern of the contour,finally retain contour polygon approximation,the outline of further rules.The experimental results show that the main structure of the caisson pattern extraction is more complete to retain the original design style murals,two methods of extracting the main structure of the scene can be used more coverage,has gained a good effect in the extraction of Chinese ancient decorative patterns on the creative material. |
