Research-oriented Visual Modeling Of Remote Sensing Products

With the expansion of remote sensing applied in practice, the demand of remote sensing applicationsis various and numerous. To develop a new remote sensing product or image processing algorithm whoseuser experience is excellent is a hot debate. The principle of online product customization system isalgorithmic components, combination of remote sensing products and workflow technology by Webapplications and calling processing execution flow of remote sensing product, to achieve a unified platformfor sharing and use of resources across the organization.Research-oriented visual modeling of remote sensing products is proposed in this paper, for workflowmodeling methods in online product customization system. To sum up, the thesis is constituted of thefollowing aspects.(1) Flex technology is introduced to make up for deficiencies in traditional Web applications on thepresentation layer.Traditional Web application development is based on B/S mode, using HTML, JSP, etc. as thepresentation layer. The ease of use and comprehensive user experience is poor, and the programmer isdifficult to work out a rich, beautiful and practical webpage without the help of professional artists, result inhigh development costs. Rich Internet Applications technology based on Flex is introduced to designfriendly interface in this paper, the solution of dragging and dropping and drawing of user-defined basicelements is also derived.(2) Propose the validation method of remote sensing product production process of customized, andpropose the modeling method of workflow model.The workflow of customized remote sensing products has its legitimacy norms, this paper proposesverification method of it. Besides, solutions of the conversion of the process which from graphical flow toflowchart description file, then workflow model document which JBPM workflow engine can identify andprocess, is also proposed.(3) Construct a data structure of remote sensing algorithm which could be identified by systemconveniently. the property characteristics and database storage structure of remote sensing algorithm is studied, anda data structure that matches the workflow modeling process is constructed in remote sensing algorithm,and propose solutions to its component-based and parameter configuration methods.(4) Appling and testing the modeling method in workflow customization system.By studying the communication mechanism between J2EE and Flex, the integration of visual processmodeling method for remote sensing products with online remote sensing customization system is proposed.Apart from it, the image data is tested against a remote sensing algorithm and the feasibility of thismodeling method is verified.