Vectorised tablets per the ToR, digital orthophotomaps, source images, editorial and technical instructions and a technical report.
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What the service is used for
Boundary accuracy
Vectorisation captures the boundaries of roads, rivers, buildings and other landscape features more accurately than a raster tablet.
Editing and updating
Vector objects are changed and extended when new ones appear or existing ones change, without redrawing the entire map.
Layers and styling
Layers are styled with colour, hatching and symbols so that the map is clearer.
Analysis and modelling
Areas and volumes are calculated from the vector, routes are selected and 3D landscape models are built.
Delivery and GIS
Vector data are transferred via the Internet, GIS and mobile applications without quality loss when scaling.
Need tablet vectorisation?
Describe the territory, scale and purpose. A specialist will assess the remote sensing archive and the scope of work.
What you will receive as a result of the work
01
Vectorised tablets
Vector tablets in the formats, projection, coordinate and height system specified in the terms of reference.
A raster tablet (map, scheme, drawing) is converted into points, lines and polygons for GIS: scale without quality loss and object attributes.
What you get
- vectorisation of paper-tablet scans and terrain objects
- export of the project to the required formats, projection and coordinate system
- export, including Shapefile or GeoJSON
Layer composition, format and coordinate system are fixed in the terms of reference.
02
Digital orthophotomaps and source images
Remote sensing materials as digital orthophotomaps and source images used to update the information.
Satellite imagery is needed to update and complement the paper tablet: contours, lines and object attributes.
What you get
- digital orthophotomaps to update a vector tablet
- source remote sensing images
- a set of additional and reference materials used in the work
Availability of a remote sensing archive and the need for a new survey affect the timeline and cost.
03
Instructions and a technical report
Editorial and technical instructions and a technical report on the completed work.
The documents accompany creation or update of a vector tablet and are delivered together with the products.
What you get
- editorial and technical instructions for creating (updating) a vector tablet
- a technical report on the completed work
- delivery on electronic media or via FTP; text materials are also provided in printed form
The need to draft and agree the instructions is confirmed before the contract is signed.
How the work goes
Cost and timeline
The full cost consists of remote sensing materials to update the orthophotomap, production work, complexity category and creation timeline.
- consultation — free of charge
- image selection, preliminary analysis of source data, additional and reference materials — free of charge
- imagery order (if needed) — from 0.5 to 70 USD per 1 km²; depends on the survey (archive or new, mono or stereo, resolution)
- the order steps list another remote sensing purchase guide: from 8 to 70 USD per 1 km²
- digital orthophotomap creation — from 1 USD per 1 km²; calculated individually and depends on the volume of remote sensing data processed, presence or absence of ground control points and the DEM used
- creation of 1 digital vector tablet sheet — from 40 000 rubles; depends on map scale, complexity category and turnaround time
- update from a digital orthophotomap depends on how outdated the raster tablet is, but not more than +50% of the creation cost
- timeline in the table and card — from 20 working days; depends on volume, complexity category, availability of remote sensing, additional and reference materials
- in the FAQ the minimum vectorisation and delivery time is from 5 (five) working days
- creation of orthophotomaps for interpretation and vectorisation — from 5 working days from the date of receiving 100% advance payment for remote sensing materials
- start of tablet vectorisation — from 3 days after orthophotomap start
- payment: 100% prepayment by invoice after signing the contract; orthophotomap work starts after a 100% advance for remote sensing materials, bank transfer only
Creation of 1 sheet — from 40 000 rubles
Turnaround time — from 20 working days
Consultation and image selection — free of charge
What is needed for a quote
To agree the terms of reference and estimate tablet vectorisation, provide:
- vectorisation territory (coordinates, district or region name, shp file, etc.)
- tablet vectorisation requirements (scale, creation or update)
- requirements for remote sensing, additional and reference data
- work execution timeline
- source material: a paper tablet or a scanned one
If the listed information is not available, it is enough to describe the intended use of the vectorised tablets.
Specialists will analyse the requirements and propose an optimal option.
Why Innoter
Accurate object boundaries
Vector captures contours of roads, rivers and buildings more accurately than a raster tablet and is suitable for measurements.
Edits without redrawing the map
Individual objects are updated when the terrain changes, without rebuilding the entire raster.
Layers and conventional signs
Data are split into layers and styled with symbology that is easy to read on the map.
GIS analysis
Areas and lengths are calculated from polygons and lines, and terrain models are built.
Update from satellite images
Satellite imagery complements the paper tablet and helps find vectorisation gaps.
QC and export
After vectorisation, boundaries are checked against the source tablet and exported as Shapefile or GeoJSON.
Scope of work, survey and source tablets
The composition depends on the scale, creation or update, archive or new survey and the quality of the source raster.
1
Tablet vectorisation is conversion of a raster image (maps, schemes, drawings) into vector graphics: points, lines and polygons that are edited and analysed in GIS.
Vector data scale without quality loss, represent object geometry more accurately and are better suited to analysis and modelling than raster.
2
The goal is to convert information from paper topographic maps into vector format to obtain more accurate and flexible map products.
- more accurately determine boundaries of roads, rivers, buildings and other landscape features;
- edit and update objects without redrawing the entire map;
- style layers with colour, hatching and symbols;
- calculate areas and volumes, build routes and 3D landscape models;
- transfer data via the Internet, GIS and mobile applications.
3
- identifying and extracting object boundaries on a paper map;
- creation of points and lines (settlements, roads, rivers, boundaries);
- attribute filling: name, type, height, area;
- resolving overlaps and boundary errors;
- quality control against the paper tablet;
- layers, styling, export to Shapefile or GeoJSON.
4
Images are used to update and complement a paper topographic tablet: new vector objects and edits of existing ones.
From the survey, information is obtained on terrain, relief, water bodies and the road network; contours and lines are built, and height, class or name is assigned. Comparing a satellite image with the vector helps find vectorisation gaps and errors.
5
Total timeline in the table — from 20 (working) days. Stages:
- issue alignment and analysis of remote sensing data availability — from 1 to 5 days;
- contract signing — from 1 to 5 days;
- receipt of images — from 3 to 10 days from the date of the 100% advance for remote sensing materials;
- receipt of the source tablet from the customer — from 1 to 20 days;
- digital orthophotomap for updating — from 5 days;
- tablet vectorisation — from 15 days;
- vectorisation QC — from 5 to 10 days;
- technical report — from 5 to 10 days.
The timeline depends on the number of tablets, scale, product type and remote sensing archive availability.
6
Before the contract: express assessment of the purpose, remote sensing archive and service feasibility; then ToR, method, coordinate system, labour input and cost.
After the advance: ordering and incoming inspection of remote sensing materials, check of customer materials, approval of editorial and technical instructions, digital orthophotomap creation, vectorisation, visual and automated QC, export to the required formats and a technical report.
Frequently asked questions
Answers to key questions about service parameters, timelines, deliverable formats and workflow. If you did not find what you need — contact us and we will help.
- area of interest (location / coordinates of the object in any convenient form, and area of the object);
- the specific problem to be solved using a digital topographic map
As the main material for creation (update) of the data project the RS data available in archives of spacecraft operators for the most current date are used, or new imagery is ordered. In addition, when creating (updating) the data project, additional and reference materials are used in the form of various geographical descriptions, large (small) scale maps and atlases, reference books, as well as data available to the Customer.
- Terms of vectorisation of plan sheets on the basis of space or aerial survey data depend on the volume and complexity of the order. Minimum term - from 5 (five) working days;
- Terms of delivery of ready vectorised plans from 5 (five) working days.
100% prepayment by invoice after signing the contract.
Conversion of raster images into vector graphics in cartography is an important process that allows obtaining more flexible and scalable data for creating maps and Geographic Information Systems (GIS). This process involves several stages:
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Scanning or importing raster image: At the beginning of the process, a raster image, such as a photograph or scanned map, is imported into a computer environment.
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Georeferencing: This step involves linking the raster image to geographic coordinates to determine its location on the map. Control points, such as geodetic markers or known geographical features, are used for this purpose. Georeferencing allows determining where various elements of the raster image are located on the map.
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Vectorization: At this stage, the raster image is transformed into vector graphics. This is done by outlining the contours and boundaries of objects in the image, such as roads, rivers, buildings, and other geographical elements. These contours and boundaries are then converted into vector geometric shapes, such as lines, polygons, and points.
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Attribution: Attributes or characteristics, such as name, object class, height, area, and other information useful for cartography and data analysis, are assigned to each vector object.
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Editing and correction: After vectorization and attribution, data editing and correction are performed. This includes error correction, object boundary alignment, and overall data quality improvement.
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Map creation: In the final stage, a map is created using the vector data obtained from the conversion of the raster image. This may involve creating various data layers, a legend, scale, symbology, and other map elements.
The process of converting raster images into vector graphics makes it easier to work with data and provides the ability to scale the map without losing quality. Vector data can also be used for spatial information analysis, as in GIS for decision-making.
Vectorization is the process of converting raster data (images, pictures) into vector data. Raster data is a grid of pixels, where each pixel has a specific color and is independent of other pixels. In contrast, vector data describes objects as geometric shapes such as lines, polygons, and points, and usually contains information about the properties of these objects.
The vectorization process can be applied to various types of raster data, including photos, raster images, scanned maps, and other raster images. Vectorization allows for the following:
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Identification and extraction of objects: Vectorization enables the automatic or manual highlighting and identification of objects in the raster image. For example, roads, rivers, buildings, and other geographical elements can be highlighted on a map.
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Creation of vector contours: Raster objects are transformed into vector contours that describe the boundaries and shapes of objects. These contours are represented as vector lines or polygons.
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Georeferencing: Vectorized data can be georeferenced to geographic coordinates, allowing the determination of the location of objects on the map.
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Attribution: Attributes or characteristics, such as name, object class, area, length, and other properties, can be assigned to vectorized objects.
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Reduced file size: Vector data typically occupies less space compared to raster data, making them more compact and economical for storage and transmission.
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Improved scalability: Vector data can be easily scaled without loss of quality, making them useful for creating maps and graphics at different scales.
Vectorization can be performed using specialized software that automatically recognizes and highlights object contours or manually using a graphic editor, where operators manually create vector shapes based on raster data. This process is widely used in cartography, geographic information systems, design, and other fields that require working with spatial data.
Need satellite imagery or help choosing the right data?
Describe your task, area of interest, and desired outcome. We will check data
availability, assess new acquisition options, and propose the optimal solution in terms of timelines, cost,
and quality.
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