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EXPRESSION OF INTEREST National Land Records Modernization Project Technical Fair, 2009. Brief Profile of Vayam?.
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EXPRESSION OF INTERESTNational Land Records Modernization Project Technical Fair, 2009
Brief Profile of Vayam? • Complete Solution Provider: IT Consultancy, Software Development, System Integration, ERP and Data Warehousing solutions, GIS and Remote Sensing solutions, e-Governance Solutions, Portal Development solutions. • Wide Experience of Working with Government Sector. • Experience of e-Governance Projects- e-districts, Indian Patent Office and e-Chindwara Portal. • Understanding of the subjects because of resources with experience in Development Sectors, who can provide the complete solutions based on understanding of the projects. • Experience of Turnkey Project. • Financially stable company. • Quality Accredited company
Our Topic of Discussion: Computerization of Land Records and Survey/resurvey of cadastral maps
Methodology Cadastral Data Existing Existing Non-Existing Partially existing 300 dpi for normal and 400 dpi coloured for damaged Musavis Scanning Scrubbed Digitization, layering and symbolization Digitized maps will match 1:1 with existing Musavis Mosaic of Intra Village Level Geo referencing Feature coding Attribute data attachment Mosaic at Tehsil and district level
Scanning Digital topographic Map Planning and Preparation Entering Numerical Terrier Scanning of Cadastral Map Coordinate Transformation Scanning of Adjacent Maps 1st print and error check Correction Continuous cadastral Map 2nd print and error check Correction Overlap of topographic map and Cadastral Map Product of Administrative Zone map 3rd print and error check Correction
Mapping specification • Capture scale shall not fall outside the range of 1:1000 to 1:5000 • Cassini Projection are being followed. On Cassini Projection the North-South stretching of scale is not balanced by any East - West change of scale except for very small areas. • Datum shall be Everest Spheroid. • Units shall be Square meters. • Source shall be Digital Ortho-imagery (in ideal cases), that has a verified minimum horizontal accuracy of 10 meters or better, and a minimal pixel resolution of 1 meter.
Cadastral Mapping and Edge Matching ykQk uOkkIkkjk eq<+kyh
Edge Matching Technique • With the Affine transformation ,using four points on each map cadastral map are pre-matched with road maps. • Sequential Auto-matching: There can be lot of boundary mismatches following the Affine transformation, so an alogirthm is followed for sequential auto matching. • Boundary Line based Automated Adjustment: This algorithm is developed for adjusting cadastral lines based on given boundary lines, the method has three parts: • Searching the conflicted cadastral lines based on given boundary lines; • Moving the conflicted cadastral lines to given boundary lines; • Related cadastral line adjustment.
Attributes of Land Records • Record of Rights: It contains the ownership details of each parcel, sub-divisions etc. • Crop details: These are updated thrice/twice in the States based on crop seasons and inspection reports giving details of crops sown, area, cultivators and yield details. • Pedigree table – This is pedigree sheet giving the details of family history, relationships with ownership details
Data Analysis Attribute Data Existing Existing Non-Existing Partially existing
Examples of Database Structure Registration Details Payment Details
Data Analysis Attribute Data Existing Non-Existing Non-Existing Partially existing
Developing Software for capturing new data File Edit Project Entry Query Help Project Entry Query drive
Non Existing Spatial Data Spatial Data Existing Non-Existing Non-Existing Partially existing Geo referencing of HR satellite Maps Vectorization of Land Parcels ETS and GPS based Georegistration Creation of Topology and closed parcels Generation of Database by Contact Survey
Creation of New Cadastral Map • The process of creating a cadastral system can be considered in two parts; • the legal or quasi-Iegal and • administration area which is responsible for adjudication of boundaries and rights in land and the creation of an efficient recording system for those rights in appropriate registers; and the technical area which includes cadastral surveying and mapping.
Approach for Cadastral Mapping • There are two basic approaches which may be adopted for cadastral surveying and mapping; • ground survey techniques • combination of photogrammetric/Remote sensing and ground survey techniques. • Ground survey techniques are the basis of most cadastral survey systems. since photogrammetry has only been used for cadastral purposes in the last 30 years or so. • Ground survey techniques suit the sporadic isolated survey approach which is usually a component of land registration. conveyancing or alienation systems based mainly on the "user pays" principle. Such systems are usually the quickest to introduce, and the cheapest and the most expedient for Governments in the short-term.
Survey of Cadastral Maps • Composition of Cadastral Maps using total station and real time Kinematic GPS survey. • GIS of Cadastral Maps • Azimuth Computation • Traverse Computation • Plotting of Cadastral Map in P-70 sheets from the Control Points derived from the Traverse Computations
Partially Existing Cadastral Map Spatial Data Existing Non-Existing Partially existing Partially existing Scanning and Digitizing old cadastral maps Registering with satellite Images Vectorization of Divided land parcels Ground Verification Creation of Topology and closed parcels
Mutation Digitization 2241/2 2241/3 2241/1
Adding Mutation Data Parcel