Generalized Image Acquisition and Analysis (Former Research Group)

Vision and Research Strategy

Our group is interested in devising novel imaging devices and reconstruction techniques mainly for 3D acquisition, especially in the case of difficult to scan objects and surfaces. We wish to extend the capabilities of current 3D scanning devices by analyzing the image formation process in general cameras and using the devised knowledge for the design of improved devices. In doing so, we aim to capture more information than is possible with today's cameras.

The tool for achieving this goal is an analysis of what we call plenoptic imaging. The so called plenoptic function is a useful concept for describing the visual world around us. It states that "everything that can be seen'' (and possibly much more) can be described by a 7-dimensional function that describes the intensity of light at every position in space (3 dimensions) in every viewing direction (2 dimensions) for every wavelength of light (1 dimension) and at every point in time (1 dimension).

Current cameras record only a two-dimensional image out of the 7 possible dimensions. Our group aims at analyzing novel designs that can capture more of the vast quantity of information hidden in the light surrounding us. Simultaneously, we perform research on how this additional information can be used to help the computer infer more knowledge about the three-dimensional world we live in.

The acquired data can be used for a great variety of purposes, such as computational photo-realistic view synthesis of real world objects, computerized modification and re-assembly of their digital counterparts, and sharing and collaboration using digital object descriptions, but also scientific analysis of and model development for hitherto unexplored visual effects.

Composition of Group

The group Generalized Image Acquisition and Analysis was founded in January 2010 in the Cluster of Excellence. The group does theoretical analysis of light transport phenomena for the design of improved imaging and scanning devices that will enable a better and more flexible digitization of real world objects and phenomena for purposes of data analysis and automated modeling.

Currently, the group consists of Dr. Ivo Ihrke (head) and two PhD students, Ilya Reshetouski and Matthias Hullin. Two additional PhD students, Muhammad Afzal (DAAD) and Alkhazur Manakov started in October 2010. In addition, one student assistant, Alexander Reuter, is employed by the group. Since the group's research includes experimental validation of theoretical findings and prototype development of novel imaging devices, we are operating a measurement studio in cooperation with the computer graphics group at MPI Informatics.

Research Topics and Achievements

Projects and Collaborations

Prizes and Awards

Dr. Ivo Ihrke

Dr. Ivo Ihrke

Ivo Ihrke was head of the Junior Research Group GIAnA - Generalized Image Acquisition and Analysis from January 2010 untill February 2013.