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Questions related from Gamal Seedahmed
As is well known, iterative methods for solving linear systems such as Successive Over Relaxation and the like, are very attractive for solving many problems such as sparse matrices. These...
28 May 2021 8,948 3 View
Although there is a reasonable dose of physical and geometrical interpretation of the mathematical formulas and equations, more work is needed to bridge the gap between the theory of mathematics...
26 May 2021 5,654 2 View
Vector analysis and vector calculus is part of the mathematical subjects that are typically taught to students at surveying and Geomatics at a BSc level. By looking deep to vector analysis,...
26 May 2021 1,525 1 View
In general, the growth of the surveying and mapping businesses is driven by the state of economic development of a particular country. This growth should not be mixed or confused with the...
13 December 2018 1,288 2 View
As is well known and from theoretical proofs, proper weighting of the least squares solution of a leveling network is inversely proportion to the distances between the leveling points or the...
31 July 2017 7,221 8 View
As is well known, there are several measures, such as joint entropy, contrast, energy, and correlation, to characterize the information content of the co-occurrence matrix. Now the question is: Is...
26 June 2016 5,881 1 View
Did any use digial video camera for beam's deflection measurement under dynamic loading?
23 June 2016 4,984 0 View
During the last three decades surveying technologies such as Total Station, GPS, and Close Range Photogrammetry were used extensively in the area of the deformation measurement and monitoring. Now...
21 June 2016 9,291 5 View
Global Earth Gravity Models are very critical to convert the third dimension of the GPS coordinates and other systems into orthometric heights, and the question is What is the state-of-the-art in...
06 March 2016 8,470 1 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...
03 February 2016 5,087 3 View
As is well known in photogrammetry, the 2D projective transformation can be written as a linear relationship in terms of its 8 parameters. Now the question is Is there is any impact of the linear...
14 August 2015 2,108 2 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...
01 May 2015 5,125 1 View
Lineaments are extractable linear features from satellite and aerial images, which are some how correlated with geological structures such as faults. During the interpretation of the lineaments we...
29 April 2015 5,209 8 View
Lineaments are extractable linear features from satellite and aerial images, which are some how correlated with geological structures such as faults. Lineaments are typically analyzed by their...
28 April 2015 2,303 3 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...
27 April 2015 9,048 6 View
Lineaments are extractable linear features from satellite and aerial images, which are some how correlated with geological structures such as faults. Lineaments can be extracted manually or...
27 April 2015 5,478 8 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...
08 April 2015 2,879 3 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...
07 April 2015 5,666 3 View
Are the photogrammetric benefits are fairly communicated to the others outside the mapping community? I do understand the historical evolution of photogrammetry, but I'm looking for ways to expand...
03 April 2015 7,424 6 View
The use of projective models such as Direct Linear Transformation (DLT) is well known in photogrammetry and very famous in computer vision. The fitting of random or stochastic observations to...
03 April 2015 329 3 View
This is a continuation of my previous question: " do we would like to integrate cognitive psychology to the teaching of engineering subjects & modeling? ".
27 March 2015 5,236 3 View
Through my professional carrier I engaged in several aspects of tanks calibration in the petroleum industry and I visited different aspects of the current practice and the current literature....
25 March 2015 2,213 0 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?
24 March 2015 6,458 3 View
One of my main research interest is to find analytical and numerical solutions to the non-linearity of the photogrammetric orientation algorithms, which I do believe is one of the main reasons...
17 March 2015 6,092 7 View
Currently Unmanned Aerial Vehicles (UAV) are heavily researched in computer vision and photogrammetry for several interesting and exciting applications, but security restrictions may hamper their...
20 February 2015 9,203 4 View
As is well, the remote sensing imaging technoloy reach an acceptable level of maturity and as shown in so many applications remote sensing can serve in so many areas. It came to my mind and the...
01 January 1970 7,737 6 View
As is well known, the dependent and independent models of the relative orientation for near vertical images or photographs that were derived from the collinearity model provides a linear solutions...
01 January 1970 1,730 4 View
