Research Group on Visual Computation

Collaborative Mobile Image Processing Demo Application

Icon of project Related projects: Collaborative Stereo Reconstruction of Planar Patches

Description

Reconstruction of the surrounding 3D world is of particular interest either for mapping, civil applications or for entertainment. We proposed a pipeline that utilizes an ad-hoc network of camera equipped smartphones in a collaborative manner. Data, computations and results can be shared among the participant devices without centralization. The reconstruction is based on segmented planar regions which is especially suitable for scenes having large (near) planar parts. Once the calibration parameters are known, the perspective distortion of a planar region in two views makes it possible to compute the normal and distance of the region w.r.t the world coordinate system.

This application is the actual android implementation of the Collaborative Stereo Reconstruction of Planar Patches project.

Files

Documentation made for users: User documentation.
Contains information about: different demo modes, user interfaces, adding test data, settings...

Documentation made for developers: Developer documentation.
Full documentation. Contains information about important classes and packages. Includes user documentation.

Full source package:
Contains the full source code with required libraries and compiled apk-s. Available for request (kato@inf.u-szeged.hu).

Compiled application versions
These are different version of the demo application compiled.
See documentation about versions and needed files.

  • Normal application apk
    Functions:

    • taking picture
    • 3 camera reconstruction from gallery images
    • 2 camera reconstruction from gallery images. local or network based on settings preference
    • 2 camera test from test cases. See creating test folders for adding test cases. local or network based on settings preference
    • 2 camera reconstruction with image taken from camera in place. local or network.

  • Offline demo apk
    2 camera local reconstruction, images taken from a list of image pairs.

  • Online demo apk
    2 camera network reconstruction with images taken from camera in place. Application starts with camera preview.

  • OBJ viewer apk
    Select image pair from a list, and show the result previously made.

  • Online demo "no camera" apk
    2 camera network reconstruction with images taken from a list of image pairs.

  • 3 device online apk
    3 camera network reconstruction with images taken from camera in place. Application starts with camera preview.

Database
Image database for reconstruction.

  • offl_demo.zip
    Unpack the archive in the SD card of the mobile device under the folder Collaborative.
Publications to cite:
  1. Attila Tanács, András Majdik, Levente Hajder, József Molnár, Zsolt Sánta, Zoltan Kato, Collaborative Mobile 3D Reconstruction of Urban Scenes, In Proceedings of ACCV Workshop on Intelligent Mobile and Egocentric Vision (C. V. Jawahar, Shiguang Shan, eds.), Springer, vol. 9010, Singapore, pp. 486-501, 2014. [bibtex] [doi]

Hichem Abdellali has been awarded the Doctor of Philosophy (PhD.) degree...

2022-04-30


Hichem Abdellali has been awarded the KÉPAF Kuba Attila prize...

2021-06-24