Among various types of the remote sensing, thermal surveying has a special place. First space thermography data was obtained back in the early 1960s by the sensors of the American TIROS satellites. Despite its low spatial resolution, this data showed a fundamental possibility of the usage of thermal imaging in remote sensing. The next years, […]
There are different ways to illustrate objects’ spectral brightness variation when moving between different spectral ranges. If it has to be shown for a single pixel of an image or generalized for a group of pixels, then spectral brightness curves are used. And what has to be done when one wishes to display spectral characteristics […]
Today we will talk a little about archeology. Usually this science is associated with digging up something very old to see if it sheds any light at the past historic events or the way we interpret them. A while ago I had a chance to work at archaeological sites myself. But girls usually get a […]
Modern software for satellite image processing offers its users a wide range of supervised classification algorithms (more detail can be found here). It yields powerful capabilities for automation of the image interpretation process. In return for that, a user should make training areas of high quality. It is this quality what defines the accuracy of the […]
When talking about GIS in Ukraine, there are very few informational resources coming to mind, that could help in case one wants to go online and check current situation and projects running in the industry. While many people living in Ukraine are still oftentimes forced to refer to foreign resources in order to find tutorials […]
Bodies emit radiation. The warmer the body the more the emittance. When we look at the Sun, or even feel it on our skin without actually seeing it, we definitely know that it emits radiation. Especially when we forget about sunscreen. From Wien’s displacement law we can learn that the peak radiation of a black […]
Today, geographic information technologies in Ukraine are still seen as novelty. Considering how widely and how often they are used across the industries, then this statement is quite true. And even though there is a wide range of open source application solutions available, representatives of various sectors rarely use GIS for process optimization. One reason […]
Agriculture – is one of the most promising sectors in terms of UAV use. Potentially UAV-conveyed surveys can give basis for various crop assessments. From estimating areas of damaged crops (due to pests, diseases, physical factors, etc.) to assessment of plots prone to weed invasion or disease and crop yield forecasting. Crop assessment is usually […]
Intro to Remote Sensing. Part 2. This post is a part of small series on Earth observation basics. In it you might find out why the sky is black in the cover picture, learn a bit about the interaction of the Earth’s atmosphere and electromagnetic radiation, and what happens due to this interaction. As […]
The analysis of the Ukrainian legislation shows a peculiar feature for drones – they fly freely, because nobody tries to observe the laws that do not contain strict rules regarding an unmanned aircraft (UAV) usage so far. However, usage of drones is more forbidden than allowed, and this is especially true for the commercial usage, […]
