Articles and Software

Prof. Dr. H. Dersch - HFU Furtwangen

Immersive Imaging

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.

Panorama Tools, Open Source Software for Immersive Imaging
International VR Photography Conference 2007 in Berkeley, Keynote Address. Conference Slides

PTStitcherNG: 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. Readme, Changes, Manpage, Download (all versions), and License
Version 0.2a (MacOS 10.5, Intel) and Readme 0.2a (MacOS 10.5, Intel).
Version 0.2a (Playstation 3) and Readme 0.2a.
Version 0.1a (Playstation 3) and Readme 0.1a.

PTViewerNG: OpenGL panorama viewer based on WebGL. This viewer requires alpha releases of Firefox, Chrome or Safari. It does not work in Internet Explorer.

MPRemap:. 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.

PTViewer Documentation
HowTo make Single-File-Tours
Extensions: 3D-Object viewer, Movies, Animations, Compass and more
Viewing Quicktime VR without Quicktime
Readme PTViewer3.1.2
Technical Paper
Example 1 (Partial Panorama)
Example 2 (Full spherical Panorama)
Download Java Applet 3.1.2
Download File Conversion Program PTConvert 0.2

PTViewerME:. Virtual Reality viewer for mobile devices (Cellphone, PDA).

PTViewerME.jad and PTViewerME.jar PTViewerME - Viewer Application.
Virtual Tour of Marburg Virtual Tour of Marburg (requires PTViewerME).
VR-Demo (jad) and VR-Demo (jar) , Example for self-displaying VR-archive.
PTViewerME - HowTo Conference Slides, PanoTools Meeting Luzern 2007.
PTViewerME running on Nokia 6230i Demonstration Video.
Utility Programs for authoring VR-files for PTViewerME.
Readme.txt
Sources for PTViewerME.2

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.

Documentation, Tutorial and Examples.

PTViewerJS: JavaScript Panorama Viewer .

Mathematics

Jasymca: Programmable Java/Javascript calculator. CAS (Computer Algebra System), provides exact and symbolic datatypes, interactive graphics display of functions. The user interface can be selected from either a Matlab/Octave/SciLab-style, or a GNU-Maxima-style.

Jasymca 4.0a Javascript version for Firefox, Chrome, Opera, Safari. Desktop and mobile devices.
Jasymca 4.0a Java Applet with downloads and (old) documentation, (german).
Jasymca 3.0 Android-app and applet for standard Java-1.4 platforms.
Jasymca 2.1 with downloads, documentation and live-applet, (german).
FnattLabME and Jasymca 1: Previous separate versions for the 2 styles. Have both been superseded by Jasymca 2.1 but are still available for download:
FnattLabME JAR and JAD.
FnattLabME Documentation
FnattLabME Sources 1.0
Jasymca 1 Documentation
Jasymca 1 program and sources

Universal SIMD-Mathlibrary: 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 the GPL3.

Miscellaneous

Embedded Linux projects using the Linksys NSLU2 Network Storage Link:

How to Connect A Palm
WLAN/LAN interface for Digital Cameras
Webfrontend for Gphoto (included in WLAN/LAN interface, maybe useful on its own)
Sisusb: Hacked version of Thomas Winischhofers kernel driver for USBVGA-adapters. Runs in Linux 2.4 Kernels whereas the original requires 2.6.
sisbit: Display Images using Sisusb-adapter above. Does not require X or any other VGA-library.
Sisusb-NSLU: Binaries, Sources, Script and Testimage for Unslung-Linux on NSLU2.
cloop Kernel-module: Use compressed file-systems on memory cards/ sticks.

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. J2ME). Sources