Image Triangular Representation And Editing

Virtual reality is the technology using computer simulation to generate a three-dimensional virtual world, providing the user on the visual, auditory, tactile and other sensory simulation, allowing users just like being. Between virtual environment and real environment, there is more focus on real-world objects merging into the virtual environment, the definition is relatively narrow.Since 1994, Milgram introduced the definition of the mixed reality of people's vi-sion, mixed reality has gone deep into the entertainment, military, medical, education and construction industries in a few short years. When capture images of objects in re-ality, it is a hot topic nowadays that how to give the image a more detailed description under the given calculation amount.There are two types of data in Mixed Reality in general:simulated three-dimensional geometric model and image obtained from the real world environment. How to recon-struct three-dimensional shape from image information is the question in Mixed Reality. Image Geometry Expression can unify two types of data, so it provides data structure for three-dimensional reconstruction.How to define an image and make it has smaller storage and faster processing speed is a key issue in image processing.In computer fields, there are two types of image formats, namely, raster images and vector images. The element in raster image is pixel. It needs a large share of memory, has low image processing efficiency and doesn't take the image correlation into account. As the buffer technology and hardware improved in 1970s, computer processing capacity of the image was Enhance hte image of the grating technology have developed rapidly. At the same time, because a more compact representation, non-resolution and ease to edit, the image vectorization technology hasn't been ignored.In mixed reality technology, it's difficult to achieve with vector representation be-cause of much complex contour information. In this paper,I use triangular represen- tation of image to solve this problem:First, using Laplace operator with image, and analysis the matrix, Finally compute the probability matrix using multi-scale method. Last, generate triangular mesh vertices according to probability matrix and complete the process of the image geometric representation.After receiving real objects image, the image pre-editing is sometimes necessary to meet certain requirements. Therefore, in mixed reality, image editing is also very critical. The conventional image editing is based on solving a Poisson equation. In this paper, MVC is introduced to do this job. using MVC give a explicit computation without solving partial differential equations, so the editing process can be real-time interaction.In dealing with real images, the image will greatly affect the efficiency of triangula-tion because of the texture of the image, so this paper give a complete image processing and realize it. The main difference is the use of cartoon texture separation technolo-gy that is introduced by Buades. After separation, we can deal only the cartoon part instead of the whole image information. experiment shows that using cartoon texture separation technology can save at least 1/3 of the time.In summary, for meeting the needs of unified representation of two types data, this paper give a new technology using triangular representation of the image and us-ing MVC to complete it's editing. Compared with the raster representation of image, triangular representation takes the image correlation into account. This make the op-timization of the image storage. Compare with vectorization representation, triangular representation isn't based on contour, so it can deal with the real image. With the exist-ing triangular representation based on Sobel operator, this paper use Laplace operator, it is better for sparse sampling. In this paper, pretreatment of the cartoon texture sepa-ration and proposed algorithm based on the geometric MVC editing program. This can greatly reduce the computation and speed up the implementation of triangulation and provide a realistic possibility of the interaction.