Hafsat saleh Dutsenwai

9 Questions 17 Answers 0 Followers

Questions related from Hafsat saleh Dutsenwai

Accuracy assessment in Ecognition software 9.0.1?

I did segmentation and classification of landsat 7 image in Ecognition 9.0.1, but the accuracy results repeatedly give 100% (1). I tried both confusion matrix based on samples, and TTA mask but...

11 November 2017 1,118 0 View

Please can someone help with anomally detection methods for series of values?

I have ndvi values from series of points obtained from time series satellite images. How can i detect anomally from these values? Thanks

05 May 2017 1,164 7 View

How can i estimate land surface temperature from atmospherically corrected landsat 7ETM+?

I am using landsat surface reflectance data for the first time, please how can i get the thermal bands 6-1 and 6-2, do i have to get a different data for them?, i.e non corrected? I also need...

05 May 2017 8,454 5 View

Please is there anyway to generate DTM from SRTM30? If yes how accurate is it?

II need to generate DTM for my study area in Nigeria, but the only data I have is SRTM30. Kindly help with a way out. Thanks

01 January 2017 9,091 2 View

Hi please I need information on Vulnerability curves and damage function, including methods, applications and parameters?

I am working on terrestrial oil spill modeling using NDVI, NDBI and LST. The vulnerability curves and damage function are suggestions from examiners. Unfortunately I couldn't even grab the basics...

01 January 2017 3,199 2 View

Are there methods of validation for classification of satellite images, change detection & LST maps in the absence of landuse and national topomaps?

HI please I have classified my satellite images, done change detection and produced my Land Surface Temperature maps, but I have no access the landuse data and the national topomaps of the study...

01 January 2017 6,771 12 View

Where can I get free land surface temperature data?

I need to observe the changes in land surface temperature due to oil spill, thanks

11 November 2015 3,524 2 View

Please how can i access data in this type of directory - ftp://eftp.ifremer.fr?

I have been trying to get access to free data provided by Earthnet (ESA) but i am not familiar with how to view the data.

11 November 2015 418 2 View

Please how can I segment landsat image in ecognition software? Please highlight the value for scale parameter, shape & compactness (for LULC changes)?

I am new to the software and i have to observe contamination due to oil spill in series of years, using landsat images. Hence i want to segment different LULC for each year, including oil facility...

10 October 2015 4,944 2 View