Deliverable 5.2 - the School of Engineering and Design - Brunel ...

ICT Project 3D VIVANT– Deliverable 5.2Contract no.:248420Search & Retrieval Mechanisms &Tools4 SEARCH FOR SIMILAR CONTENTIn theonline phase of the framework, the database should be already prepared and waiting for queries.The framework supports two kinds of querying methods. The first is the typical method of a userposing a query multimedia object (a single query – see section 4.1) and the system replies with theresults list. The second method is a “batch search” method where a user may need to pre-compute theresults for a set of queries to use them in the future or outside the framework (section 4.2). Thissecond approach is used in the hyperlinker demo process. This will be presented in detail inDeliverable D5.44.1 SINGLE FRAME SEARCHIn the single frame search functionality the user selects to perform a new query from the menu or thetoolbar icon. A new search thread is generated and a new window is presented in the UI (Figure 12).The window provides an “open” button that opens the platform’s native “file open” dialog. The userselects the integral frame file that he wants to use as query and loads it into the window. The “loadmask” button loads the corresponding segmentation mask from the database. The segmentation maskloading opens the mask image file and reads from the corresponding XML file or computes on the flythe bounding boxes and clickable areas for each object in the frame. After this process the user is ableto click the exact object (see Figure 13) in the loaded integral image and use it as a query. In this casethe query is only the selected object and not the entire query image. If the user selects to not load themask and just click the search button, the whole integral image is used as a query image.Figure 12: Query formulator window4/03/2013 18