Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Interactive Audio Lesson
Listen to a student-teacher conversation explaining the topic in a relatable way.
Introduction to Photogrammetry
Unlock Audio Lesson
Today, we're going to learn about the origins of photogrammetry. Has anyone heard of Aime Laussedat and his contributions?
Wasn't he the first to use a camera for topography?
That's correct! In 1851, Laussedat created a camera designed specifically for measurement. It's fascinating how photography evolved from there. Can anyone tell me what Nadar is known for?
He took the first aerial photograph, right?
Exactly! In 1858, Nadar captured his aerial photo from a balloon. This introduces the concept of taking images from above—a crucial aspect of photogrammetry. Let's remember 'AL-N' for 'Aime Laussedat and Nadar,' a way to recall these two pivotal figures.
What did they do with aerial photography?
Great question! They initially used it for topographical mapping, which laid the groundwork for many applications we see today, including military and civilian uses.
Evolution of Techniques
Unlock Audio Lesson
Now, let's talk about the various techniques that came after Nadar. Who knows about the use of kites for aerial photography?
I remember hearing about Archibald's kite photos!
Exactly! E.D. Archibald was one of the first to take kite photographs in 1882, and by 1889, Arthur Batut also utilized this method for aerial images. They truly expanded the possibilities of aerial photography beyond balloons!
And what about the rockets?
Excellent point! Alfred Nobel used rockets in 1897 for aerial photography, which was innovative at that time. This highlights how creative approaches were taken to capture images from the air.
Military Significance and Advancements
Unlock Audio Lesson
So far, we've discussed peace-time applications, but what about during conflicts? How did aerial photography evolve during the World Wars?
Didn't they use it for creating battle maps?
Absolutely! Aerial photographs played a crucial role in mapping and strategizing during World War I. For instance, Sherman Fairchild took overlapping images to create detailed maps of Manhattan!
So, aerial imagery was essential for military operations?
Yes, indeed. They used aerophotography extensively for reconnaissance and mapping, which paved the way for the advanced surveying and mapping techniques we use today.
Technological Advances and the Digital Era
Unlock Audio Lesson
Now, let’s transition to the technological advancements in photogrammetry. Could anyone explain what happened from the 1950s onward?
Was this when computers started being used in photogrammetry?
Exactly! Analytical photogrammetry marked the beginning of computer use for accurate measurements. It introduced improved aerial triangulation methods.
And digital photogrammetry?
Digital photogrammetry—now that’s the current phase. It processes high-resolution images using specialized software, significantly enhancing accuracy and efficiency. Remember the acronym 'DICA' for Digital Imagery with Computational Aids.
Introduction & Overview
Read a summary of the section's main ideas. Choose from Basic, Medium, or Detailed.
Quick Overview
Standard
The historical developments of photogrammetry highlight key figures and innovations from the formation of the first measuring camera by Aime Laussedat in the mid-19th century to the integration of advanced computational methods by the late 20th century. The narrative includes significant milestones like the introduction of various aerial photography techniques and the evolution into digital photogrammetry that drastically enhanced accuracy and efficiency.
Detailed
Historical Developments in Photogrammetry
The history of photogrammetry can be traced back to the pioneering work of Aime Laussedat in 1851, who created the first measuring camera for topographic applications. In 1858, Gaspar Felix Tournachon, also known as Nadar, captured the first known aerial photograph from a hot-air balloon above the small village of Petit-Becetre. Following this, several notable individuals contributed to the evolving field. For instance, E. D. Archibald was among the first to use kites for aerial photography in 1882, and Alfred Nobel utilized rockets for aerial images in 1897. The development accelerated with innovations like Julius Neubranner's pigeon-mounted cameras in 1903 and L.P. Bonvillain's aerial photography from airplanes during 1909.
The evolution of photogrammetry can be categorized into four major phases:
1. Graphical Photogrammetry: The early experiments and inventions that laid the foundation.
2. Analogue Photogrammetry (1900-1960): Characterized by the introduction of instruments for rectification and stereo-plotting, extensively used during World War II.
3. Analytical Photogrammetry: Emerged in the 1950s with the advent of computers, enabling more precise measurements and improved aerial triangulation methods.
4. Digital Photogrammetry: The current phase utilizing digital images processed through sophisticated software, offering significant time and cost savings while enabling the creation of detailed digital output such as Digital Elevation Models (DEMs) and orthophotos.
Understanding these historical aspects is crucial not only for appreciating the technological advancements but also for applying photogrammetry effectively in current practices.
Audio Book
Dive deep into the subject with an immersive audiobook experience.
Early Beginnings of Aerial Photography
Unlock Audio Book
Signup and Enroll to the course for listening the Audio Book
The conception of using photographs for purposes of measurement appears to have been originated with the experiments of Aime Laussedat of the Corps of the French Army, who in 1851 produced the first measuring camera image for its application to topography. The first known aerial photograph was taken in 1858 by a French photographer and balloonist, Gaspar Felix Tournachon, known as Nadar. It was a view of the French village of Petit-Becetre taken from a tethered hot-air balloon, 80 m above the ground.
Detailed Explanation
In the early days of photography, the idea of using photographs as a measurement tool was pioneered by Aime Laussedat in 1851. He created the first camera image that could measure ground features for topographical mapping. Just a few years later, in 1858, Nadar captured the first aerial photograph from a balloon, depicting a village. This marked the first practical use of aerial photography, laying the groundwork for its development in surveying.
Examples & Analogies
Imagine trying to map a landscape by drawing it by hand; it’s tedious and time-consuming. Now think of how much easier it would be if you could simply take a photo from above. This is what Nadar’s groundbreaking work represented—a fast and effective way to capture a vast area without the painstaking process of manual mapping.
Innovations in Aerial Photography
Unlock Audio Book
Signup and Enroll to the course for listening the Audio Book
Later, besides hot air balloons, kites, pigeons and rockets have been used which carried cameras into space for taking air-photographs. In 1882, the English meteorologist, E. D. Archibald was among the first to take photographs from kites, and then in 1889, Arthur Batut took aerial photographs from a kite, in Labruguiere, France. The first aerial photograph from a rocket mounted camera was taken by the Swedish inventor, Alfred Nobel in 1897.
Detailed Explanation
As the field of aerial photography evolved, various innovative methods were employed. After using balloons, inventors turned to kites and even birds like pigeons for photography from the air. In 1882, E. D. Archibald experimented with kite-based photography, continuing the trend of finding creative ways to capture aerial images. Alfred Nobel ventured into aerial photography using rockets in 1897, which highlights the experimental spirit and innovative techniques of that era.
Examples & Analogies
Think of how we use drones today for photography. Just as drones or even advanced kites can capture stunning aerial shots, inventors over a century ago used whatever methods they could—including kites—to achieve the same goal. Both methods show human ingenuity in using technology to improve how we see the world from above.
Adoption of Aerial Photography in War and Civilian Applications
Unlock Audio Book
Signup and Enroll to the course for listening the Audio Book
The first successful aerial photography from an airplane piloted by Wilbur Wright was taken in 1909 by L.P. Bonvillain who took motion pictures of the military field at Centocelli, near Rome. During World War I (1914-1918), the battle maps used by both sides were created from these aerial photographs. After the war, the aerial photographs were used for civilian purposes.
Detailed Explanation
The use of aerial photography transitioned into the military realm with the Wright brothers. In 1909, L.P. Bonvillain captured motion pictures from an airplane, indicating a significant technological advancement. Aerial images became crucial in creating battle maps during World War I. After the conflict, this technology found a new life in civilian applications as mapping and data collection expanded beyond military use.
Examples & Analogies
Consider how maps are created for today’s military strategies using satellite imagery; similarly, during World War I, commanders relied on aerial images for strategic planning. The shift from wartime necessity to civilian application of aerial photography illustrates how innovations can have multiple uses based on societal needs.
Developmental Phases of Photogrammetry
Unlock Audio Book
Signup and Enroll to the course for listening the Audio Book
Since year 1950s, the development of the photogrammetry went through four major phases: (a) Graphical photogrammetry, (b) Analogue photogrammetry, (c) Analytical photogrammetry, and (d) Digital photogrammetry.
Detailed Explanation
Starting from the 1950s, photogrammetry saw significant advancements, delineated into four phases. The graphical phase introduced basic methods for image interpretation, while analogue photogrammetry (1900-1960) involved using film and manual techniques. The analytical phase, starting in the 1950s, integrated computing power for increased accuracy, followed by digital photogrammetry that harnessed high-resolution digital images and sophisticated software for analyzing and processing imagery.
Examples & Analogies
Think of how the evolution from a basic cellphone to today's smart devices has transformed communication. Similarly, photogrammetry evolved from basic image making to complex digital processes, enhancing accuracy and expanding its applications in mapping, surveying, and remote sensing.
Definitions & Key Concepts
Learn essential terms and foundational ideas that form the basis of the topic.
Key Concepts
-
Aime Laussedat's contributions in 1851.
-
Nadar's first aerial photograph from a balloon.
-
World War I usage of aerial photography for military maps.
-
Transition from analogue to digital photogrammetry.
Examples & Real-Life Applications
See how the concepts apply in real-world scenarios to understand their practical implications.
Examples
-
The first aerial photograph taken in 1858 by Nadar.
-
The use of kites and rockets for aerial photography.
-
Sherman Fairchild's aerial maps during WWI.
Memory Aids
Use mnemonics, acronyms, or visual cues to help remember key information more easily.
🎵 Rhymes Time
-
In eighteen fifty-one Laussedat did come, measuring with cameras, the world in a sum.
📖 Fascinating Stories
-
Once upon a time, a balloonist named Nadar flew high above village sights, snapping pictures that changed the world forever.
🧠 Other Memory Gems
-
Remember 'AL-N': Aime Laussedat and Nadar for the early names in photogrammetry.
🎯 Super Acronyms
DICA
- Digital Imagery with Computational Aids summarizing the transition to digital photogrammetry.
Flash Cards
Review key concepts with flashcards.
Glossary of Terms
Review the Definitions for terms.
-
Term: Photogrammetry
Definition:
The art, science, and technology of obtaining reliable information about physical objects and environment through processes of recording, measuring, and interpreting photographic images.
-
Term: Aerial Photography
Definition:
The process of taking photographs from the air using various platforms like balloons, kites, airplanes, or drones.
-
Term: Analytical Photogrammetry
Definition:
The phase of photogrammetry that began in the 1950s, focusing on accurate photogrammetric measurements using computer technology.
-
Term: Digital Photogrammetry
Definition:
A method using digital images processed through specialized software to derive photogrammetric information.
-
Term: Triangulation
Definition:
The method of determining the location of points by measuring angles and distances from known points.