Photogrammetry And remote Sensing Services
Photogrammetry And remote Sensing Services
The photogrammetric and remote sensing services offered by SBL provide the highest quality mapping services available and we work hard to ensure that all our clients are fully satisfied. We offer photogrammetric services at extremely rational prices that make us competitive among the other photogrammetric and remote sensing service providing companies.
Our experienced staffs coupled with the latest mapping technology ensure accurate and reliable data. We integrate knowledge, technology, people, and business with geographic zones to provide innovative and potential services to local as well as global clients.
Digital satellite images and aerial photographs play a vital role in general mapping, as well as GIS data acquisition and visualization. Through the orthorectification process we provide you a solid visual effect and a basis for gathering spatial information. The output generated would then enable you to do functions like making direct and accurate measurements of distances, angles, positions, and areas.
Our task is to meet the diverse needs and processes of our clientele quickly and efficiently. Our project methodologies are based on the unique set of customer requirements and challenges. The remote sensing services offered by SBL branches out to meet classification, image correction, image enhancement and change detection services.
The goal of SBL is to obtain reliable information about objects and the environment through the use of photographs or other non-contact data sources. We work on our extensive technical resources, infrastructure and global delivery capability. We manage, execute and deliver large projects to customers worldwide, thus providing them the benefits of high-quality, cost-effectiveness and reliable delivery.
Though the arrival of high speed desktop computers has made remarkable changes in the photogrammetric processes over the years, the basic principles have remained the same. Today, a graphics program allows the operator to digitize the features and save the vectors and points to a digital file.
SBL offers the following digital photogrammetric services such as:
Aerial triangulation: This process is performed using the Match-AT module of INPHO photogrammetry suite
Digital Elevation Model / Digital Terrain Model generation: DEM inputs generated are edited according to client specifications. We capture breaklines wherever slope changes are visible and later interpolate them to the terrain.
Stereo compilation: We perform stereo compilation using both softcopy plotters and analytical plotters. Stereo-compilation is performed for planimetric, DTM projects and for updating old maps using new aerial imagery.
Topographic and planimetric feature extraction: SBL provides accurate digital planimetric feature extraction in standard formats. SBL relies on a project specific process designed to deliver high quality output at competitive prices and quick turnaround time.
Orthophoto production: SBL digital orthophotography output provides valuable information about the terrain from which true distances, angles and areas can be measured.
Color balancing: Using the updated color balancing techniques, we change the overall mixture of colors in an image and later use it for color correction; a generalized version of color balance is used to get colors other than neutrals.
Mosaicing and tile generation: Orthophoto mosaics are created by merging orthophotos or tiled together and then clipped to according to client specified dimensions.
Pan Sharpening: We merge high resolution panchromatic and lower resolution multispectral imagery to create a single high resolution color image. This technique is used to increase image quality of the Google maps and other maps.
Contour Generation: Generating contours on a softcopy photogrammetric workstation gives our technicians the opportunity to view superimposed contours directly over a stereo model, in 3-D, and to modify the topographic model before a final DTM surface and contours are generated.
DIGITAL ELEVATION MODEL (DEM) EXTRACTION: The DEM Extraction Module enables you to extract elevation data from scanned or digital aerial photographs, or from an along track or an across track push broom satellite acquirement.
LiDAR data processing: We offer:
- 3D model generation of features.
- Detection and removal of noise and outlying points
- Generation of digital elevation models
- Generation of elevation profiles, Digital Surface Models (DSM) and Digital Terrain Models (DTM) as raster, TIN, contour or slope models.
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