How can we build a 3d model from WorldView images (Not Stereo)?

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Which satellite image is better for buildings and roads extraction WorldView1, 2 or 3?

Which satellite image is better for buildings and roads extraction WorldView 1, 2 or 3? Is it possible to extract built up features without panchromatic band? Please provide references. Thank you.

08 September 2019 4,524 4 View

How to calculate confidence interval after running multi regression analysis in excel?

Case 1: I have a large sample (n =100). After I ran multiple regression in excel, I want to know what is the confidence level of predicted values. How can I calculate CI for a certain predicted...

04 May 2019 7,224 5 View

Why do we use speckle filtering and multi-look paramertization?

When we work with Sentinel 1, what are the main functions/ importance of speckle filtering and mutli-look paramertization? If they remove noise only, what cause this noise? What will happen if we...

03 April 2019 7,480 3 View

Why it is preferable to use sentinel 1 and sentinel 2 togther for landuse classfication?

In land use classification, Why it is preferable to use sentinel 1 and sentinel 2 together? What are best methods for classifying urban areas in dry regions?

03 April 2019 7,462 3 View

How do we map and identifying crops types?

Is there a method or a GIS/RS library that enable us to identify crops types (Cotton, sugar cane, rice, wheat... etc) without the need to collect samples from agriculture land? or Is there a...

31 December 2018 5,332 6 View

IKONOS and free software?

Is there any free software that we can use when we work with IKONOS data? What are they?

31 December 2018 8,791 7 View

Is it possible to measure "effective sky temperature" using remote sensing? what products are used?

Is it possible to measure "effective sky temperature" using remote sensing? what satellite image products are used?

06 July 2018 5,767 1 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

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 4 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

Which SAR dataset to use for generating coherency matrix and performing target decomposition (Description) ?

Working on chandrayaan-2 DFSAR data, there are three datasets available: 1) Slant range image data product: The slant range complex image file. Each pixel is represented by two 4-byte floating...

02 March 2021 8,481 3 View

Shall I skip the measurement model in SmartPLS?

Hello everyone, I had run a mediation model in SmartPLS using questionnaires that were already validated among my statistical population. A professor who edited my paper -though she is not...

01 March 2021 3,052 3 View

What is involved in morphological changes of SEM images of a substance?

In the sem analysis of CaCO3 nanaoparticles, the morphology images showed spherical shaped particles but the proposed morphology for these type of nanoparticles is trigonal. I prepared the...

01 March 2021 1,960 4 View

Joint behaviour in Abaqus is not captured well?

I am working on roof joint and trying to simulate the behaviour in Abaqus. I am successful in running the model but the final graph does not follow the experimental curve in the negative direction...

01 March 2021 6,661 3 View

How UAV or drone can be beneficial to better estimate crop yield?

As we know, crop yield estimation has been done traditionally with farmer's expert knowledge, deductive sampling in representative areas, and remote sensing with satellite imagery. Farmer's Expert...

01 March 2021 3,468 3 View