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Tip 67: Two ways to use external XYZ data in PhotoModeler

Posted on Monday, August 18th, 2014

Tip 67 Screen Shot

External 3D XYZ point data can be imported into PhotoModeler and used in a few different ways. This tip video describes the two most common uses: multi-point transforms, and control points. External XYZ data can be supplied by other measurement devices, such as survey total stations, GIS, laser scanners, or other photogrammetry projects. This data,…Read More


Blog and RSS Change

Posted on Tuesday, July 22nd, 2014

The PhotoModeler Blog and the RSS feed have moved to a different domain. Those that get the blog by email should continue to do so with a slightly different format. Those that follow the blog with an RSS reader should still see the blog (the rss feed request is redirected) but you may have seen…Read More


Tip 66: Interesting Ways to Set PhotoModeler’s 3D View

Posted on Monday, July 21st, 2014

Tip 66 3D Viewer Screen

PhotoModeler’s 3D View window has controls for manipulating the view position. This allows you to rotate around the 3d model, zoom in and out, or pan. The buttons in the bottom right corner of the 3D View provide this user interactive dynamic control of the view. You move the mouse cursor over one of the…Read More


PhotoModeler Orthophoto Improvements & 2014.1 Release

Posted on Friday, July 11th, 2014

2014.1 Orthophoto Blending

A new version of PhotoModeler¬†(2014.1) was released July 9th. The main focus of this release is improved orthophoto production – in quality, speed and capability. An orthophoto is a re-rendering of photographic data to take into account the surface shape.¬† It turns a photograph (or set of photographs) into an image that is like an…Read More


Tip 65: PhotoModeler Help Resources

Posted on Friday, July 11th, 2014

Tip 65 Tutorial Screen

There are a number of very useful resources available to assist with learning PhotoModeler (whether it is first time use or an expert learning about a new feature). This tip video outlines a number of these resources and how to access them. Some of the resources described are: the tutorial summary dialog that opens at…Read More


Tip 64: Relating Camera Stations and Photos in PhotoModeler

Posted on Tuesday, June 24th, 2014

Screen shot of tip 64 video

In PhotoModeler a Camera takes a Photo. The location and orientation of the Camera in space when the Photo was taken is called a Camera Station. Photos and Camera Stations are central concepts in PhotoModeler and photogrammetry. There is a one-to-one relationship between a Photo and a Camera Station. In the PhotoModeler user interface Camera…Read More


Tip 63: Two Styles of Surface Drawing in PhotoModeler

Posted on Monday, June 9th, 2014

tip_63_blog_img

PhotoModeler’s Surface Draw is a useful tool for doing 3d ‘tracing’ on a surface in a single photo. Typically in photogrammetry to create a 3D point one needs to mark or identify the image of that point in two or more photos – so it can be computed by triangulation/intersection. There are a couple of…Read More


Tip 62: Forensic Modeling of Trajectories with Photogrammetry

Posted on Friday, May 30th, 2014

feat

A common forensic task is to determine the position of a shooter in a crime scene. One technique uses bullet trajectory rods and calculations of intersection and extension. Photogrammetry, the science of performing measurements from photos, can be used to model the cylindrical trajectory rods, using a normal DSLR camera, and find their position and…Read More


Tip 61: Using Un-calibrated Cameras in Photogrammetry

Posted on Monday, May 12th, 2014

feat2

Photos taken with a calibrated camera provide the best results in photogrammetry and PhotoModeler.¬†Camera calibration is the process of determining accurate specifications for the camera’s internals – such as focal length, format size and lens distortion. What are the options when the camera is not, or cannot be calibrated? PhotoModeler can handle a uncalibrated camera…Read More


Tip 60: Varying the detail level in a PhotoModeler PointMesh

Posted on Monday, April 28th, 2014

Tip 60 Screen

PhotoModeler Scanner’s MVS and Pair-based DSM tools create dense point clouds. These 3D points are usually ‘triangulated’ to produce a useful surface. This tip describes a key setting used in this triangulation process. Triangulation is the process of converting a 3D point cloud into a triangulated 3D surface that can be used for surface study,…Read More



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