Ahasanul Hoque

Ahasanul Hoque

Lives in Bangladesh
Ahasanul Hoque

Posts Categorized / GeoTechnology

Urban Damage Assessment from High Resolution Images using OSM MASK and Neural Network

A complete methodology has been given by Dariia Gordiiuk of Earth Observatory Systems(EOS) Data Analytics for detecting urban damages Applying Neural Network and Local Laplace Filter and OSM masking Methods to Very High Resolution Satellite Imagery. Hope it will help a lot the geospatial analysts. Since the beginning of the human species, we have been […]

DATUM for BANGLADESH

April 22, 2017 | GeoTechnology | by aHaSaN

A datum defines the reference spheroid (or ellipsoid) used to describe a portion of the earth. In Bangladesh, the Everest spheroid has historically been used in all projections. However, there are various Everest datums and there is a great deal of confusion about which to use. To date it has not been possible to completely […]

Universal Transverse Mercator (UTM) Projection System

April 22, 2017 | GeoTechnology | by aHaSaN

As the name suggests, the Universal Transverse Mercator projection is based on the cylindrical Transverse Mercator projection. The cylinder in the Transverse Mercator projection is tangent along a meridian (line of longitude) or it is secant, in which case it cuts through the earth at two standard meridians. In the UTM projection the transverse cylinder […]

A Brief on Map Projection

April 22, 2017 | GeoTechnology | by aHaSaN

Over the centuries, many different ways of representing the round Earth on flat paper have been developed. Each of these methods is referred to as a map projection. What does it mean to project something? Have you ever been to the movie theatre? How does the movie get on the movie screen? The image you […]

OSM Based Android Apps for Mapping

April 22, 2017 | GeoTechnology, OpenStreetMap(OSM) | by aHaSaN

Though there are a significant numbr of apps are available for tracking, routing, navigation, POI saving but OpenStreetMap based are more useful than others interms of licene, freedom and customization. Below are a short detail of few OSM based mapping app for android  OSM Tracker One of the key apps, is something that can track […]

Crowd-Sourced Mapping !!!

February 18, 2015 | GeoTechnology, OpenStreetMap(OSM) | by aHaSaN

What is crowd-sourcing? Crowdsourcing is generating content on the internet, which involves contributions from a large, disparate group of individuals.  These methods rely upon web applications that allow people to upload information easily and allow many others to view and react to this information. Crowdsourcing relies on the principle that a lot of knowledge resides with […]

Learn OSM: Part-3 (Task Manager)

February 18, 2015 | GeoTechnology, OpenStreetMap(OSM) | by aHaSaN

How to Select&Edit a Task in the OpenStreetMap Tasking Manager Select a Task and map a tile. You do not need to be at the location and do not need to know the names of roads and buildings. You will look at satellite imagery and trace roads, paths, buildings and areas Select the Task you wish to work on; […]