27 Questions 57 Answers 0 Followers
Questions related from Gamal Seedahmed
First of all, many thanks to the providers of free sources of remote sensing imagery and data such as Landsat and sentinel imagery. Yes this data can be used for commerical applications, but their...
06 June 2018 4,022 7 View
As is well known the main concern of the support vector machines (SVM) is to provide the maximum margin between different patterns; and when coupled with the kernels trick or modeling it will...
03 March 2018 836 8 View
In terms of measurement: Could we make the following generic definition of Photogrammetry: "What You See What You Measure": WYS-WYM?
06 June 2016 4,003 0 View
I'm curious about the accuracy of the Free-Stationing function in Leica-1205 Total Station. I made a simple experiment by comparing the results from free stationing with their counterparts that...
06 June 2016 2,080 8 View
As is well known, there are many places in Sudan that are covered with mesquite trees and they have undesirable effects such as depleting the groundwater storage. On the other hand they have some...
02 February 2016 7,898 3 View
Is any one awrae of low cost hyper-spectral sensor that can be used agricultural applications?
05 May 2015 9,788 0 View
What is the deep connection between spatial resolution and positional accuracy in remote sensing images?
05 May 2015 8,954 0 View
As is well known, camera calibration in photogrammetry and with the use of Bundle Adjustment with self-calibration, the coordinates of the principal points cannot be recovered from parallel...
05 May 2015 3,398 1 View
I do believe that the potential of photogrammetry is not fully realized yet, then: What does it take to increase the market share of photogrammetry in measurement?
04 April 2015 776 0 View
In areas such as decision making, we can distinguish between art and science in terms of the mechanism that we use for decision. In other words is it a calculated decision or something else?
04 April 2015 788 2 View
As is well known remote sensing images are used to derive the hydrothermal alteration to delineate potential areas for gold exploration. Yes, indeed other information can be brought to the picture...
04 April 2015 493 3 View
Is there is any resonable estimate for the market share of photogrammetry in the measurement business?
04 April 2015 3,893 0 View
Lineaments are extractable linear features from satellite and aerial images, which are some how correlated with geological structures such as faults. Several indicators are used to indicate the...
04 April 2015 5,520 7 View
How is the future of low-cost digtal cameras for photogrammetric applications? Low-cost digital cameras are the main drivers of close-range photogrammetric applications. Do we have to expect a...
04 April 2015 4,984 0 View
Differences between the global geoid such as EGM2008 and the local geometrical geoid could reach more that 70 cm (here in Khartoum-Sudan). Now the question could we use the global geoid to guide...
04 April 2015 1,495 4 View
Geometrical geoid modeling is a general problem to relate the GPS height to the quasi geoid. My question is: what are the criteria that guide the number of co-located points for problem modeling...
04 April 2015 6,156 4 View
Spherical tanks for LPG is typically calibrated by strapping. Does the current practice use laser-based total station? If yes, how do they compute the tank's parameters?
03 March 2015 8,651 3 View
As is well known, the photogrammetric operations were based on points. During the last 2 decades or so geometric entities such as lines, conic sections, and free-form curves were proposed to...
03 March 2015 5,442 0 View
Classically, spherical tanks are calibrated by strapping around their circumferences to measure their diameters. Now the question is: What is the state-of-the-art in spherical tanks calibration?
03 March 2015 4,450 0 View
As is well known photogrammetry is mainly concerned with the derivation of 3D coordinates from overlapping images. In more general terms photogrammetry is an effective tool for 3D measurement,...
03 March 2015 774 0 View
As is well known, the process of tanks calibration is dictated by the requirements and needs of the Oil Industry. On the other hand, the underlying measurement process of these tanks is well...
03 March 2015 4,477 1 View
As is well known, multi-spectral remote sensing revolutionize several areas in source mapping, such as crops yield estimation. And now hyper-spectral remote is giving more promises to advance...
03 March 2015 9,493 3 View
Do we need to use more sensors? or More platforms such as UAV? or More applications?
03 March 2015 2,272 1 View
Photogrammetry is about geometric modeling of real world from images. By the same token, computer graphics is about geometric modeling for scene rendering. Both photogrammetry & computer...
03 March 2015 2,355 1 View
This is a continuation of my previous question: " do we would like to integrate cognitive psychology to the teaching of engineering subjects & modeling? ".
03 March 2015 1,965 3 View
Drawing in general requires some imagination and many students are having difficulty in acquiring this skill. I think the complexity of this subject could be modeled through cognitive science...
03 March 2015 9,450 3 View
With all the opportunities that we enjoy from the use of the Internet in terms of connecting people, how can we streamline the open source information to build an effective early warning system to...
02 February 2015 5,547 3 View
