Articles and Software
Prof. Dr. H. Dersch - HFU Furtwangen
This is the original homepage of Panorama Tools, the
free software suite for authoring and displaying virtual reality
panoramas. Much of the software has been moved to other websites,
and is now part of several free and commercial projects. This
site exhibits recent developments and experiments.
3d-Panorama Viewer PTViewer3d
PTViewer3d is an experimental spherical panorama viewer that generates
stereoscopic views on the fly from monoscopic panoramic images and depth maps.
Unlike conventional two-image based viewers it provides stereoscopic vision
in all directions including vertically up, down and z-rotated views, as
well as head-motion parallax.
This is a 3-part series of articles dealing with post-synchronization
of video streams for stereoscopic applications, and/or for stitching
panorama movies. The first two parts present methods for determining
the offsets between video streams with sub-millisecond accuracy.
The third part presents software tools for time-shifting videos
by frame-interpolation establishing synchronized streams with the
Subframe Video Synchronization
The next upcoming version 2 of MPRemap features a software 3d-motion tracker und true three-axis image stabilizer.
MPRemap is a software toolkit
for wide angle and fisheye type lenses as found in action cameras. It corrects
lens distortions and remaps to any of the standard panoramic image formats.
MPRemap 2 will be available on this site in the near future.
Demo of upcoming version of motion picture remapping software and comparison with
other videostabilizers (Adobe After Effects, Deshaker, Youtube). A version of this video with
fewer compression artefacts can be downloaded here. For a longer test and
demo clip see below.
Hyperlapse video of a bicycle ride in the black forest, southern germany.
A version of this video with fewer compression artefacts can be downloaded
Bicycle descent from Thurner (Black Forest) on winterly roads.
A version of this video with fewer compression artefacts can be downloaded here.
Panorama Tools, Open Source Software for Immersive Imaging
International VR Photography Conference 2007 in Berkeley, Keynote Address.
Fast Panorama Stitcher and Blender, implemented in SIMD-Math.
For Intel (Windows, Linux, MacOS) and CUDA-graphics processor (Windows. Linux).
The version for Cellprocessor (Playstation 3) is discontinued.
PTStitcherNG 0.7b new features: editing seam positions.
Documentation and Example.
PTStitcherNG 0.7b new features: the multiple rectilinear projection.
Documentation, Tutorial and Examples.
Version 0.7b March 6, 2010, for Windows 7, MacOS, with and without CUDA capable coprocessor.
Download (all versions), and
Version 0.2a (MacOS 10.5, Intel) and
Readme 0.2a (MacOS 10.5, Intel).
Version 0.2a (Playstation 3) and
Version 0.1a (Playstation 3) and
OpenGL panorama viewer based on WebGL. This viewer requires
alpha releases of Firefox, Chrome or Safari. It does
not work in Internet Explorer.
Motion Panoramas, applying Panorama Tools
to motion pictures, panoramic movies and more.
PTViewer:. Interactive viewer for virtual reality panoramas. Suitable for HDR (high dynamic range)-images.
PTViewerME:. Virtual Reality viewer for mobile devices (Cellphone, PDA).
Documentation, Tutorial and Examples.
Multiple Rectilinear Panoramas:
Some recent experiments to straighten cylindrical panoramas;
useful for architecture, especially with large vertical field of view.
Essentially, we project the panorama onto an arbitrary
closed-path 360degree-screen, and then display the flattened image.
A cylindrical panorama uses a circular path, while in
this experiment we can use straight segments to correctly
display perspective lines. The segments are interconnected
by splines leading to smooth transitions.
interactive graphics display of functions.
The user interface can be selected from either a Matlab/Octave/SciLab-style, or
Standard functions for single precision floating point
vector datatypes are
provided for the SIMD-platforms x86 (SSE2), PowerPC and Cell.
In most cases, speed and/or accuracy compare favourable with existing
SIMD-libraries (MacOS Accelerate Framework, Cell SDK).
Most of the algorithms are based on those of the Cephes library,
while the implementation is branchfree and parallelized for
minimum pipeline stalls. The Universal SIMD Mathlibrary (usm) provides
the functions sin, cos, tan, asin, acos, atan, atan2, sqrt,
exp, log, pow, abs, ceil, floor, ldexp, and frexp. It is licensed under
Embedded Linux projects using the Linksys NSLU2 Network Storage Link:
Video Converter for Canon Camcorders.
CConvert creates video files suitable for playback
on a Canon Powershot TX1, which, given the component
video output, can then be used as a very compact playback-
device for arbitrary HDTV-content, e.g. for presentations.
Other Canon cameras may also work,
JPEGDecoder: Pure-Java JPEG-Decoder for limited Java APIs (e.g.
Copyright 2003,2004,2005, 2006, 2007, 2008, 2009, 2011, 2015, 2016 Helmut Dersch