Create Digital Elevation Model and Digital Surface Models from stereoscopic images

Professional GIS and RS expert is here, with strong research capacity in the area of image processing and modeling. I have assisted 8 PhDs (one of them in the field of Remote sensing image analysis and modeling), did many MS research and worked as GIS specialist for a local planning firm. I have commend on RS software like ERDAS imagine, ArcGIS, MapInfo and so on. I did many GIS and remote sensing related projects in freelancer (Check my feedback of cartography and map, Remote sensing related projects). I am at post graduate level of my own and going for my own PhD. I think for your project i can be a best fit. from your image we can measure the depth, then can constructs the DEM as we need. Let us discuss to find ways and more option for the analysis. Thanks in advance, best regards; Labib

Hi! Please check my profile and contact me so we can discuss more about the project. Thank you, Alex Giurgiu

Dear, I want to do this project. I have eight years experiences in GIS and Photogrammetry also. I worked with LASEdit, Info-Datem Software. I have direct experience with LiDAR data and Stereoscopic images, creating DEM, DTM, DSM, DHM, 3D City Model. Let me know the volume of work. (How many tiles you have, Length X Width per tile, Points Density of Elevation or Spot Height, Other Specifications) Regards

Hi, I have seen the job and am looking forward to discussing more details on the job. I have extensive skills and experience in GIS and Remote Sensing. As a Geomatic Engineer I have also done alot in Photogrammetry and thus have a lot of experience in stereo images and Erdas+LPS.

A proposal has not yet been provided

I have experience in generating DEM from steroe pair data of IRS satellite

A proposal has not yet been provided

A proposal has not yet been provided

A proposal has not yet been provided

i have an experience in Geospatial area more than 10 (ten) years. please check my portfolio and my resume for sure. I have a lot of experience in DEM (both DSM and DTM) area when I am working at PT exsamap asia as GIS production supervisor. Exsamap Asia was the joint operation company of Intermap Technologies (canada) and Exsa International (Indonesia). in here I am using IES software for image processing. this software produce DSM and DTM image for project name NEXTMAP Indonesia. my background education in Geography area makes me able to do remote sensing skills.

A proposal has not yet been provided

I have more than 10 years in Remote Sensing & GIS. Prepared many geospatial maps, Digital Elevation Models, land use /land cover images, investigated mineral deposits and ground water potential areas. Prepared Reports.

We have experience in remote sensing / photogrammetry and can realize DSM / Mosaic from any sensors (optical satellite / digital frame). Depending on the number of input images, metadata and use of GCP, it will be possible to get good accuracy for your DSM.

I have over 10 years experience in GIS & Remote Sensing, including extensive digital photogrammetry. I propose the following method for the production of DSM/DTM from stereo image pairs : 1. Internal orientation using camera parameters &/or image EXIF data 2. Relative orientation using defined tie points across each image pair 3. Absolute orientaion - georeferencing within a co-ordinate system of the using a set of GCPs, if required. This information may be in the image EXIF data, which may also contain data from an IMU, if used i.e. Yaw/Pitch/Roll values 4. Initial processing iteration produces an initial raw point cloud 5. Point cloud densification is performed, using agreed parameters and filters. 6. Generate an orthomosaic, DSM & DTM 7. Review quality of outputs, using verification points if available. If not within agreed tolerances, repeat the processing using amended parameters &/or filters