Ground Truth Analysis using Google Earth - Is it possible?
Hello friends, I Know that the topic (Ground Truth Analysis using Google Earth) is bit wired. Before that we have to understand what is ground truth verification. Ground truth verification is process through which physical verification or field visit to region, for checking level accuracy which is analysed in satellite image is same as the real world information. Now lets discuss the process using google earth, so most of the image analyst use Erdas Imagine for classification Land-use and Land-cover and etc. In this case the satellite imagery are 30m in resolution that not really accurate.
Now there's option to synchronize your satellite imagery with google earth through which we can identify the feature in the satellite image through google earth up-to significant level. This is really useful in saving your time, energy and cost reduction by more accurate visual ground truth analysis. In the above video tutorial the steps have be shown with good example or click on Youtube Link.
Advantages and Disadvantages
1. Better resolution compared to satellite image information.
2. Saves time, money and energy during short span project or analysis.
3. Google Earth offers timeline by adding various years information, some time the specified timeline will not be available.
4. If you are researcher this technique is reliable up-to some extent, so be do not be dependent on this technique lone.
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