This document discusses photogrammetry and its applications. Photogrammetry is the technique of measuring objects from photographs. It has two types - interpretative and metric. Metric photogrammetry involves precise measurements from photos to determine object locations. Photogrammetry has advantages like quickly covering large areas, low cost, and providing a permanent record. It requires overlapping images and ground control points for establishing positional relationships.
The Global Positioning System is a satellite-based radio navigation system for determination of precise position and time, using radio signals from the satellites, in real-time or in post-processing mode.
The Global Positioning System is a satellite-based radio navigation system for determination of precise position and time, using radio signals from the satellites, in real-time or in post-processing mode.
A small description about the principle and operation of widely used instrument 'Total Station' in Civil Engineering and Global Positioning System through a technical view...!
Aerial surveying technology is utilized in a wide range of fields throughout the world. These range from the creation of maps, to terrain analysis and research (rivers, soil erosion, coasts, etc.), urban planning, road planning (roads, rails, etc.), and vegetation research (forests, agriculture, lakes and marshland, etc.).
Introduction, electromagnetic spectrum, electromagnetic distance measurement, types of EDM instruments, electronic digital theodolites, total station, digital levels, scanners for topographical survey, global positioning system.
TOTAL STATION: THEORY, USES AND APPLICATIONS. Ahmed Nassar
TOTAL STATION: THEORY, USES AND APPLICATIONS.
The total station, (also known as electronic tacheometer) is an instrument that can measure horizontal and vertical angles together with slope distance and can be considered as combined EDM plus electronic theodolite. In common with other electronic surveying equipment, total stations are operated using a multi-function keyboard which is connected to a microprocessor built into the instrument. The microprocessor not only controls both the angle and distance measuring systems but is also used as a small computer that can calculate slope corrections, vertical components, rectangular coordinates and, in some cases, can also store observations directly using an internal memory. Nowadays surveying systems are available which can be use in an integrated manner with Global Positioning System (GPS). so, future total stations may have integrated GPS receivers as part of the measurement unit.
Definition of Surveying
Objects of Surveying
Uses of Surveying
Primary Divisions of Surveying
Principles of Surveying
List of Classification of Surveying
Definitions : Plan and Map, scales :Plain Scale and Diagonal Scale,
A small description about the principle and operation of widely used instrument 'Total Station' in Civil Engineering and Global Positioning System through a technical view...!
Aerial surveying technology is utilized in a wide range of fields throughout the world. These range from the creation of maps, to terrain analysis and research (rivers, soil erosion, coasts, etc.), urban planning, road planning (roads, rails, etc.), and vegetation research (forests, agriculture, lakes and marshland, etc.).
Introduction, electromagnetic spectrum, electromagnetic distance measurement, types of EDM instruments, electronic digital theodolites, total station, digital levels, scanners for topographical survey, global positioning system.
TOTAL STATION: THEORY, USES AND APPLICATIONS. Ahmed Nassar
TOTAL STATION: THEORY, USES AND APPLICATIONS.
The total station, (also known as electronic tacheometer) is an instrument that can measure horizontal and vertical angles together with slope distance and can be considered as combined EDM plus electronic theodolite. In common with other electronic surveying equipment, total stations are operated using a multi-function keyboard which is connected to a microprocessor built into the instrument. The microprocessor not only controls both the angle and distance measuring systems but is also used as a small computer that can calculate slope corrections, vertical components, rectangular coordinates and, in some cases, can also store observations directly using an internal memory. Nowadays surveying systems are available which can be use in an integrated manner with Global Positioning System (GPS). so, future total stations may have integrated GPS receivers as part of the measurement unit.
Definition of Surveying
Objects of Surveying
Uses of Surveying
Primary Divisions of Surveying
Principles of Surveying
List of Classification of Surveying
Definitions : Plan and Map, scales :Plain Scale and Diagonal Scale,
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
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About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
7. Photo analyzing
Quantitative
That is size, length, shape, height, area etc.
Qualitative
Geology, vegetation, drainage, land use etc. This section is
primarily concerned with the quantitative evaluation of
survey photographs.
8. Types of Photogrammetry
• There are two types of photogrammetry as follows:
• Interpretative Photogrammetry.
• Metric Photogrammetry.
• Arial
• Terrestrial
9. Classification of Aerial
Photographs
Vertical Photograph
An aerial photograph taken with the optical axis of the camera held in a
vertical or nearly vertical position is classified as vertical photograph
Tilted Photograph
In practice, the camera axis is nearly held vertical. But due to
unavoidable aircraft tilts the camera axis is unintentionally tilted from
the vertical. Then the resulting photograph is called tilted photograph.
10. Oblique photograph
An oblique photograph in which the apparent horizon appears
is termed as high oblique photograph.
Apparent horizon
It is the line in which the earth appears to meet the sky as
visible from a point.
11. Low oblique photograph:
It is one on which the apparent horizon does not appear. A pair of low
oblique taken in sequence along a flight direction in such a manner that
both photographs cover basically the same area is called convergent
photographs.
12. Interpretative Photogrammetry
• Interpretative photogrammetry involves recognizing and
identifying objects and judging their significance through
careful and systematic analysis from photographic images.
Metric Photogrammetry
• It consists of making precise measurements on photographs
and other information to determine relative locations of
points.
13. Requirements of Photogrammetry
Technology rafay
Overlapping image for stereo view required for 3D vewing and
measurement.
Ground Control Points (XYZ) for establishing positional
relationship between photo and ground.
Stereo Pair Photograph
Green Dots showing GCP’s
14. Applications of
Photogrammetry
To prepare plan metric topographical maps (Surveying/mapping).
To determine the space position of ground objects.
For acquisition of military intelligence (Military/artificial intelligence).
To classify soil (Forestry/agriculture).
For the interpretation of geology (Geology/archaeology).
Assessment of crop damage due to floods or other natural calamities.
To prepare a composite picture of ground.
To relocate existing property boundaries.
16. Provides a permanent photographic record of conditions that existed at the time the aerial
photographs were taken. Since this record has metric characteristics, it is not only a pictorial
record but also an accurate measurable record.
If information has to be re-surveyed or re-evaluated, it is not necessary to perform expensive
field work. The same photographs can be measured again and new information can be
compiled in a very timely fashion. Missing information, such as inadequate offsets for cross
sections, can be remedied easily.
It can provide a large mapped area so alternate line studies can be made with the same data
source can be performed more efficiently and economically then other conventional
methods.
It provides a broad view of the project area, identifying both topographic and cultural
features.
17. It can be used in locations that are difficult, unsafe, or impossible to access. Photogrammetry is
an ideal surveying method for toxic areas where field work may compromise the safety of the
surveying crew.
An extremely important advantage of photogrammetry is that road surveys can be done
without closing lanes, disturbing traffic or endangering the field crew.
Indivisibility between points and unnecessary surveys to extend control to a remote area of a
project are not required. The coordinates of every point in the mapping area can be
determined with no extra effort or cost.
The aerial photographs can be used to convey or describe information to the public, State and
Federal agencies, and other divisions within the Department of Transportation.
18. Scale
Scale is the ratio of the size of any object or feature
or area within the photo to its actual size .
A large scale image will cover a smaller area but will
show ground features in more data .
Scale =
𝑃ℎ𝑜𝑡𝑜 𝐷𝑖𝑠𝑡𝑎𝑛𝑐𝑒
𝐺𝑟𝑜𝑢𝑛𝑑 𝐷𝑖𝑠𝑡𝑎𝑛𝑐𝑒
19. Calculating Scale
Feature of Known Size
One method is to use a feature of a known size in the photograph to calculate the
scale.
(e.g. football field or standard event field)
20. Feature of Known Size
• Example: You measure the straight length of a track to be 2.5 mm and you know that the real
ground distance is 100 meters, what is the scale of the photo
21. Focal Length
Focal length is the distance between the camera lens and the film .
The focal length of the lens affects the scale of the image captured.
A camera with a lens of long focal length will produce images which look as if they have been taken
close to the ground.
Conversely a short focal length lens will produce smaller scale photographs which can look as if they
have been taken at altitude.
The scale of a photograph (S) can also be expressed as the ratio between the focal length of the
camera (f) and the altitude of the platform aircraft (H) in the equation
Scale = f/H-h
22. Focal Length
• Example: A camera with a 152 mm focal length takes an aerial photograph from a flying height of 2780m
above sea level and the average elevation of the terrain above sea level is 500m. What is the scale of the
photograph?
24. TYPES OF OVERLAPPING
There are types of Overlapping
End Lap/Forward Overlapping
Side Lap/Lateral Overlapping
25. End Lap/Forward Overlapping
End lap/Forward lap is the overlapping of successive
photos along flight line.
For stereoscopic viewing (60 + 5) end lap is
necessary.
26. End Lap/Forward Overlapping
In hilly areas, 70-80% necessary because of coverage
gap produced by tilt, crab, flying height and terrain
variation etc.
27. Side lap/Lateral lapping
Side lap/Lateral lap is the overlap between photographs
in adjacent parallel flight strip.
For stereoscopic viewing, (30 + 5)% side lap is
required.
28. conclusion
By working on this report we have learnt about the photogrammetry technique
which is used for surveying to prepare the such map like details about the bed of
earth surface, bed rock, types of soil and rocks, the topographic map which give us
information about elevation of various places like hills, valley and river etc. the most
advantages of photogrammetry we prepare the map which shows us the information
about anything which are present on the surface of earth like the position of roads,
rivers, dams, and building etc.