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This paper proposes a new algorithm of medical image denoising and contour extraction that can be used in image processing such as medical image reconstruction, image enhancement, image smoothing, feature extraction and image analysis. The algorithm consists of two parts. First, combining median filtering with wavelet transform to enhance and denoise image.(More)
A Web-based synchronous collaborative environment is presented, which facilitates the education of mechanical engineering design. With the system, participants at different physical locations gather online to discuss topics of interest. Members of the group can directly manipulate all entities in the engineering draft interactively on their browsers and(More)
A web-based collaborative design platform is presented for design MEMS structure. The design platform consists of four parts: mask design and optimization, lithography simulation, 3D reconstruction and synchronous display. Some special technologies in constructing the platform are described. An entity- based access control mechanism is employed to settle(More)
A web-based integrated education system for curriculum of mechanical engineering drawing is presented. The system consists of three modules: a web-based multimedia teaching material, an assignment toolkit and a virtual discussion platform. Teachers utilize them to give their lectures, organize, publish and check assignments. Students use them to review the(More)
A novel region profile construction method for mask pattern design is proposed. The algorithm is realized in our own developed web-based mask design platform. Comparing with traditional region creation approach, the area-oriented region creation algorithm is more intelligent, convenient and flexible for designer's operation. The design result can be shared(More)
In order to create a platform for customer oriented Web-based virtual design, an interactive and collaborative discussing environment for both customers and enterprise designers is necessary. In the system, VRML model of the products is employed as the intermedium of the communication. An approach to reconstruct VRML model is presented. The manner makes(More)
Market competition is forcing companies to develop and manufacture diverse products to meet customer's requirements. It is very important to respond to the market quickly in design. In this paper, a Web-based virtual design environment is presented, which allows customers to participate in product design directly and help designers to adjust the structure(More)