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Dissertation Proposal (Initial)
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Dissertation Proposal (Initial)

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  • 1. Evaluating visibility on digital surface model to identify optimal (hidden) routes Presented By: Faizan Tayyab
  • 2. Outline Aims & Objectives. Data Requirements. Hardware Considerations Software Considerations Calculations & Issues Limitations Presented By: Faizan Tayyab
  • 3. Aims To determine the routes within the terrain which have minimum visibility from present location (origin) to destination. Determining the degree of invisibility at a certain location and throughout the route identified on the terrain. Presented By: Faizan Tayyab
  • 4. Primary Objectives Assuming two players given by A and B, the primary objective is: Having calculated the visibility map of B (who is static), calculate possible routes for A from current position of A to a certain destination position on the terrain specified by A. The routes must have probabilities of being visible to B attached to them. All calculation assumed to be taking place on local PDA (client). Presented By: Faizan Tayyab
  • 5. Secondary Objective The secondary objective will concentrate on the complexity of motion of B, which will cause the visibility map of B to change every time B moves. The result of B motion each time will cause the hidden routes for A to be recalculated. Hence the updated coordinates of B have to be transmitted to server every time. Presented By: Faizan Tayyab
  • 6. Data set The test data set to be used will comprise of the University of Nottingham main campus DSM and Lake district DSM. The two locations have been selected to compare the results on different terrain types and to make conclusions on the basis of the results. Presented By: Faizan Tayyab
  • 7. Proposed Methodology Presented By: Faizan Tayyab (Positions) Coordinates DSM based Visibility map Calculations (Grid Based Calculations) Routes Calculations Output Routes Position Change Y N
  • 8. Hardware Considerations For the primary objective, it is aimed to perform all the visibility calculations on the local PDA. For the secondary objectives, the client server architecture will be explored as there is a constant need to update the routes for A when player B moves. Presented By: Faizan Tayyab
  • 9. Client Server Architecture Presented By: Faizan Tayyab Web Server HTTP HTTP
  • 10. Proposed Software Consideration Proposed Programming Languages Python or PHP Database MYSQL with PHP or MOD_PYTHON with Python URL: encoding GIS Tools Possible use of IDRISI for view shed Presented By: Faizan Tayyab
  • 11. Software Calculations (DSM) Presented By: Faizan Tayyab B A
  • 12. Graphical Hidden Routes Representation Presented By: Faizan Tayyab
  • 13. Visibility Calculations Presented By: Faizan Tayyab
  • 14. Culture Effects Have to take into consideration the culture, (probability based) assumption to be made on visibility. Presented By: Faizan Tayyab
  • 15. Limitations and Considerations Hidden routes may have a starting point where it difficult to receive a GPS fix. The limitation can exist in area of dense forest. Seasonal Variations. Effects of season on culture will have impact on visibility. Python only applicable on Nokia mobile sets. Memory issues in mobiles/ PDAs. Possibility of slow GPRS data transfer. Possible Projections Issues (Coordinate systems) Presented By: Faizan Tayyab
  • 16. Outcomes & Conclusions Possible determination of least visibility routes for specific terrain while considering the factors causing uncertainty and minimizing uncertainty. Complex View shed Calculations involved. Possible Client Server Architecture. Presented By: Faizan Tayyab
  • 17. Feedback & Contact Details Any Questions? Faizan Tayyab Msc Geographical Information Systems Presented By: Faizan Tayyab