For NEO B.V., I am developing a geo-information infrastructure (back-end, front-end) to support computer aided image interpretation and change detection (on aerial / satellite imagery). The platform facilitates:1. Centralized workload preparation and prioritization2. Expert reviewing and complex data-entry, red-lining, etc.3. Procedures and reporting of quality control (QC) and other management information4. Web dissemination of images and geo-information through generic mapping… Show more For NEO B.V., I am developing a geo-information infrastructure (back-end, front-end) to support computer aided image interpretation and change detection (on aerial / satellite imagery). The platform facilitates:1. Centralized workload preparation and prioritization2. Expert reviewing and complex data-entry, red-lining, etc.3. Procedures and reporting of quality control (QC) and other management information4. Web dissemination of images and geo-information through generic mapping services as well as tailored interactive mapping applications (portals)Specifically, the platform seeks to integrate manual workflows with automated processing. Unique selling point is the platforms' ability to synchronize information flows of parallel / converging processing steps. Recently, the platforms' data model has been further enhanced to handle time series analysis reliably and efficiently.NEO B.V. is using this platform on a daily basis, evaluating and monitoring real-world objects in the domains of civil engineering, public space, land use & cadastre and agriculture.Development and implementation is being done incrementally. Key technologyies:.NET/C#, PostgreSQL/PostGIS, Python, MapServer, GDAL, MapInfo/MapBasic, QGIS Show less

Availability of free (or affordable) medium-resolution satellite imagery (spectral and radar) is on the rise. CropMonitor is a platform for continuous monitoring of fields using time series satellite data of various sources/sensors, including Sentinel1/2, Landsat8, Modis and Aster. For the entire technology stack of web dissemination and service delivery (storage, back-end services and front-end applications) I am the lead developer. Main goal is to offer targeted end users (farmers, crop… Show more Availability of free (or affordable) medium-resolution satellite imagery (spectral and radar) is on the rise. CropMonitor is a platform for continuous monitoring of fields using time series satellite data of various sources/sensors, including Sentinel1/2, Landsat8, Modis and Aster. For the entire technology stack of web dissemination and service delivery (storage, back-end services and front-end applications) I am the lead developer. Main goal is to offer targeted end users (farmers, crop advisors; non geo-information experts) an intuitive, responsive web application with maps, infographics and tabular information on objects of their interest, as well as alerts through parallel channels like SMS, email. Core technologies: PostgreSQL/PostGIS, UMN MapServer, PHP, JavaScript: VueJS, D3JS, OpenLayers, JQuery. CropMonitor is currently deployed in The Netherlands, Ukraine and Kenya Show less

The Netherlands Space Office (NSO) is a Dutch government agency promoting space technology, including the use of satellite imagery. Working with raw spaceborne imagery is not as easy as it may seem, therefore NEO B.V. has been contracted to download, process and georeference satellite image acquisitions. Subsequently, these images are made available through the interactive webmapping portal of Satellietbeeld targeting expert GIS users: http://www.satellietbeeld.nl (please notice: only available… Show more The Netherlands Space Office (NSO) is a Dutch government agency promoting space technology, including the use of satellite imagery. Working with raw spaceborne imagery is not as easy as it may seem, therefore NEO B.V. has been contracted to download, process and georeference satellite image acquisitions. Subsequently, these images are made available through the interactive webmapping portal of Satellietbeeld targeting expert GIS users: http://www.satellietbeeld.nl (please notice: only available for visitors from within The Netherlands). This portal is developed by me, full stack: from server-side catalog-driven map tile rendering services to client-side interactive mapping. For the front-end, a complete makeover is underway, improving user-friendliness and targeting a broader user group, including those visiting the portal using a mobile device. Core technologies: PostgreSQL/PostGIS, UMN MapServer, PHP, JavaScript: OpenLayers, JQuery. Show less

LIANFOTO is a smartphone App (Android) aiming to replace the costly land surveying equipment and personel involved in updating the mapping of sub-surface infrastructures like water, gas, electricity and data networks. Using LIANFOTO, pictures are taken and both the position (GPS: lat/lon) and external orientation parameters (pitch, roll, yaw) are stored along with it. Subsequently, the acquired data is sent to the processing back-office (based on Agisoft) to build a 3D model; by dense-matching… Show more LIANFOTO is a smartphone App (Android) aiming to replace the costly land surveying equipment and personel involved in updating the mapping of sub-surface infrastructures like water, gas, electricity and data networks. Using LIANFOTO, pictures are taken and both the position (GPS: lat/lon) and external orientation parameters (pitch, roll, yaw) are stored along with it. Subsequently, the acquired data is sent to the processing back-office (based on Agisoft) to build a 3D model; by dense-matching the images, the orientation parameters are enhanced and aligned. A orthorectified image can then be derived and used in CAD of GIS to track the as-laid position. In this proof-of-concept project, I was responsible for App development, as well as server-side image storage. Core technologies: Java (Android SDK, Android Studio), Python (server side) Show less

The African Risk Capacity (ARC) was established as a Specialized Agency of the African Union (AU) to help Member States improve their capacities to better plan, prepare and respond to extreme weather events and natural disasters, therefore protecting the food security of their vulnerable populations.ARC employs a suite of specialised software tools, developed by the UN World Food Programme (WFP), for advanced satellite weather surveillance and risk modelling. I have joined the Research… Show more The African Risk Capacity (ARC) was established as a Specialized Agency of the African Union (AU) to help Member States improve their capacities to better plan, prepare and respond to extreme weather events and natural disasters, therefore protecting the food security of their vulnerable populations.ARC employs a suite of specialised software tools, developed by the UN World Food Programme (WFP), for advanced satellite weather surveillance and risk modelling. I have joined the Research & Development team to contribute to this software stack, with a particular focus on consolidating and expanding on the underlying information infrastructure for spatio-temporal analysis, creating common ground (object models, APIs) for all future software solutions on any platform (desktop, web, mobile).Key technologies: Delphi, MySQL, GDAL Show less

Me and ADC ArcheoProjecten have a long history together in developing and integrating spatially enabled software solutions in support of archeological fieldwork, synthesis and reporting. The core product I have been developing is ArcheoSuite: a platform for (geo)information processing in archaeological research. It has its use in the entire chain of fieldwork, analysis and reporting. ArcheoSuite allows for data collection using surveying equipment and mobile devices, both networked and offline.… Show more Me and ADC ArcheoProjecten have a long history together in developing and integrating spatially enabled software solutions in support of archeological fieldwork, synthesis and reporting. The core product I have been developing is ArcheoSuite: a platform for (geo)information processing in archaeological research. It has its use in the entire chain of fieldwork, analysis and reporting. ArcheoSuite allows for data collection using surveying equipment and mobile devices, both networked and offline. The collected information is directed into a common geospatial database, allowing for querying and (visual) exploration using GIS. Basically, specialists are continuously busy refining and augmenting the project dataset, based on their progressive understanding of the site.ArcheoSuite has grown to a mature medium-large software suite, developed by me--full stack: information analysis, architecture, coding. On average, about 15 people work with the software on a daily basis, greatly improving their productivity: repeated tasks have been automated and all sorts of integrity checks are constantly enforced on the data which the team is working on. Data management, data exchange and versioning between workstations / tablets is completely automated and workflows (like data entry and composing thematic maps) is supported by convenient tools.Core technologies: .NET/C#, MapInfo/MapBasic, Oracle Spatial, MS Access/VBA, some low-level bits and pieces in C/C++ Show less

Being responsible for the timely and correct handling of land claims and permit requests, the Selangor (Malaysia) Land and Mines Office (Pejabat Tanah dan Galian Selangor, PTGS) wished to digitize the handling of these applications. Within this larger eCharting project, my job was to implement the integrated charting module in MapInfo, touching upon the workflow of many clerks. The developed GIS solution handles the geo-spatial editing and validation in various ownership and permission… Show more Being responsible for the timely and correct handling of land claims and permit requests, the Selangor (Malaysia) Land and Mines Office (Pejabat Tanah dan Galian Selangor, PTGS) wished to digitize the handling of these applications. Within this larger eCharting project, my job was to implement the integrated charting module in MapInfo, touching upon the workflow of many clerks. The developed GIS solution handles the geo-spatial editing and validation in various ownership and permission registries. Core technologies: MapInfo/MapBasic, C#.NET, ODBC, PostgreSQL/PostGIS. Show less

Development of hydrographic processing toolkits (ArcGIS) and webbased Asset Management platform for Offshore Infrastructures. Development and bug fixing for SonarReg92 application in which the full record of sonar detected objects is being recorded and administrated by RWS.Development of Maritime Archaeology Database (MARIAD)Key technologies: PostgreSQL/PostGIS, ArcGIS, Python / ArcPy, PHP, VB6

1. Data preparation, structuring, aligning data models2. Spatial Analysis using ArcGIS (ecological impact, impact on area accessibility / traffic)3. Dissemination of spatial information trough ArcView as well as more traditional cartographic outputs (paper, PDF)Task automation using ArcPy

Development and integration of a Point Of Sales system across a distributed computing environment. Key technologies: Borland C++Builder / Delphi, MS Access, MS SQL Server