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scenario. Users can query the node information, such as bus stations, subway stations, intersections, etc., through the path. First, find a user wants to know the building arrived at the scene pointed out that real estate. Then by interacting with three-dimensional model, further details of the building and deepening understanding. Architectural details of the building structure, type of area, sales prices and property information, is present in the two-dimensional image or text label. In order to bring a more intuitive browsing experience users can zoom or rotate a three-dimensional model by touch control during the interaction. Marbury provide context aware services such as navigation mode selection, path and path node checks. Figure 5. Identification and browsing in POI scene 4 modular structure and context-aware services. 

This step is to produce the outline of the back and sides of the mask. Since the background is green, a hue threshold value is used to automatically distinguish between green area (body) from the green area (background). In order to obtain a clean side of the body contour, silhouette image in the back of the legs must be completely hidden behind the other front leg. In the image analysis, shown in FIG. 1, the back and sides of the contour image used. In order to facilitate the extraction of the body mask, participants wearing tight shorts and tank tops (F), and standing in front of a green background. In the following outline, arms participant leaves the body, feet shoulder width apart; and on the side, arms close to the body to the participants, with feet together. Focus and position of the camera is fixed. The generated body mask (e.g., the side and the back masks shown in Fig. 2) is further rotated to ensure that the body is in straight standing position. This is achieved by drawing a vertical line passing centroid computed 

