how do i can use Landsat images for land uses change with/and its detailed survey (Small houses and roads)?
could you give more details about what you want to do , do you plan to do change detection or what?
The smallest detail that you can see is the pixel size of the object (30 m), which is the smallest unit of the image. In the case of Ladsat 7 and 8, from the Pan band, you can increase the resolution to 15 m and see objects that temanho.
My goal is detection of changes in rural areas with Landsat images
(Because SPOT images and IRS are expensive)
In this case you can get Landsat images (5, 7 and 8) here:, for non-commercial purposes.
Yes, u can use the Landsat data, can u elaborate the time series of data you require I mean u have to detect changes from which year ?
Using Landsat images with (30m) resolution and sharpening them using pan (15m) may work for you.
ASTER data (15m) and SENTINEL 2A (10, 20) are currently available at free of cost. So you can try those images instead of the Landsat (30m) for getting better results. For ur micro-scale study (household and road) the only solution is to use either Google Earth data or Microsoft Bing map. Google Earth provides historical images which are helpful for temporal study (change detection). Visit the following link.
https://www.youtube.com/watch?v=F9Gb8FpTo68
I suggest you to use google maps with your Landsat images to get accurate results. After that, you can use Land Change Modeler (LCM) to obtain nice results of land change detection.
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