Category Archives for "Background"

Posts with background on theory, photogrammetry, cameras, 3D, CAD, etc.

How Is Photogrammetry Used in Video Games?

Photogrammetry in video games

One of the lesser-known applications of photogrammetry is in video game design. Many video game developers employ this measurements-from-photos technology to create all kinds of 3D models that are then used as in-game assets. These could range from small, handheld objects such as bottles or firearms to large-scale environments such as cityscapes or mountains. There […]

Photogrammetry vs 3D Scanning

Camera and Computer

Digital 3D models are used in a variety of industries, but there is more than one method to create them from a real object or scene. Photogrammetry and 3D scanning are the two primary methods for creating these models. Whether you need 3D models for design, manufacturing, forensics, or research, below are the pros, cons, […]

Photogrammetry Applications in Aerial Photography

Drone in sky

PhotoModeler Technologies’ photogrammetry software obviously has a wide variety of real-world applications, not the least of which is in aerial photography as performed by drones and other kinds of UAVs (unmanned aerial vehicles). Aerial Photography in Industry Land Surveying Disaster Relief Cartography Public Safety How Aerial Photogrammetry Applies Photo Triangulation Advantages of Aerial Photogrammetry UAVs […]

Photogrammetry and Car Crashes

Depicts two cars post accident.

Among photogrammetry’s many useful applications is in the area of car crashes, specifically the reconstruction of car crashes after on-site evidence has been removed. The ability of photogrammetry to remake car accident scenes is tremendously important to the police and forensic specialists who investigate the aftermath of these kinds of events. This is because car […]

What’s Involved in Crime Scene Photography?

Perhaps one of the most valuable applications of PhotoModeler Technologies’ photogrammetry software–which lets users measure areas from photographs–is in crime scene and forensic photography. Photogrammetry software is valuable to forensic photography because the images taken by crime scene photographers must often be used to present facts about conditions, distances, and placement to a court as […]

How Does Photogrammetry Work?

Camera mobile and computer

What Is Photogrammetry? Brief History of Photogrammetry Photogrammetry Locations Photography Essentials Uses for Photogrammetry How Does Photogrammetry Actually Work? At PhotoModeler Technologies, we feel that the customers who get the most excited about our software are the ones who best understand the field of photogrammetry. This makes sense since the people with a foundational knowledge […]

Low-Cost Cameras for Photogrammetry and Measurement

What makes a good low-cost camera for photogrammetry?  Photogrammetry is the technique of using a camera to measure and model the real world. First note that low-cost is a relative term – we are not talking about a $150 camera – instead of between $500 and $900.  This is more aptly titled: “What is the […]

Accuracy of Pile Volume Measurement with Photogrammetry

Accurate volume measurement of piles of material is important in a number of applications, such as: stock pile inventory management, volumes of tailing piles, volume of organic materials in composting operations, quarry pit size, mine reclamation, etc. These piles are difficult to measure due to their size, difficulty of traversing, and non-uniform shapes. The advent […]

Camera Fundamentals and Parameters in Photogrammetry

Photogrammetry is the science of using photographs to obtain measurements and models of real-world objects and scenes. Photogrammetric techniques involve using known information to help solve other, previously unknown information.  Several critical pieces of known information concern the camera used to capture the photographs, and defining those pieces in mathematical terms known as camera parameters. […]