How can image segmentation help in improving classification accuracy?

is it possible to use more than three bands in image segmentation? I carried out image segmentation but I feel that the result is not satisfactory. most area of the image represented only one...

09 October 2019 5,264 8 View

How can I spatially correlate land cover with land surface temperature?

I have a landsat 8 image from which LST is estimated. I need to make correlation between LST and land cover types.

03 April 2019 4,586 6 View

I searched for an image of Landsat TM for the Palestine and Jordan for the year 1997, but I did not find any!! if there is a way to get these data?

I work on a project for exploring urban expansion trends in Palestine between the years 1997 and 2016. I found Landsat 8 data for the year 2016, but i did not find image data for the year 1997. if...

05 June 2018 5,340 4 View

How can I improve image classification accuracy?

I am trying to extract built up from a series of Landsat images in order to understand urban expansion trends in the region. The study area includes large areas of rocky lands, and they are highly...

04 May 2018 2,468 5 View

What is the best method for land surface temperature mapping using satellite data?

I am working on detecting indicators of climate change using a series of landsat data. I need to use a proper method to prepare land surface temperature maps for 30 years data.

01 February 2018 4,133 14 View

What is the difference between vegetation stress and vegetation diseases?

I have a student who works on using remote sensing for detecting diseases of agricultural plants. He frequently asks: I am unable to differentiate between vegetation stress and vegetation disease.

09 October 2017 1,759 0 View

What is the difference between flaash atmospheric correction and quick atmospheric correction in ENVI?

In ENVI there are two types ofastmospheric correction: FLAASH and QUICK. What is the difference between the two?

02 March 2017 353 2 View

Is it wise to change the 16 bit data value of Landsat8 to 8 bit data value?

01 February 2017 7,191 3 View

Are people becoming shorter and smaller by time? if yes, why?

when we watch films describing people in ancient times, we notice that those people were tall, strong and big. On the other hand, we notice that people these days are relatively smaller and...

03 April 2016 1,530 0 View

What are the best wavebands for brain tumor delineation?

There are many attempts to use remote sensing techniques in medical purposes such as the delineation of brain tumor spreading. How can we do that job efficiently?

01 February 2014 3,241 2 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View