ECognition

First launched in May 2000, eCognition introduced the computer method for extracting information from images using a hierarchy of image objects (groups of pixels) as opposed to traditional pixel processing methods. The technology, referred to as Cognition Network Technology, was realized by Gerd Binnig together with a team of researchers at Definiens AG in Munich, Germany. In June 2010, Trimble Navigation Ltd (NASDAQ: TRMB) acquired Definiens business assets[1] in earth sciences markets including eCognition software.

Cognition Network Technology

To emulate the human mind's cognitive powers, Definiens used patented image segmentation and classification processes, and developed a method to render knowledge in a semantic network. The technology examines pixels not in isolation, but in context. It builds up a picture iteratively, recognizing groups of pixels as objects. It uses the color, shape, texture and size of objects as well as their context and relationships to draw conclusions and inferences, similar to a human analyst.

Software

The eCognition Suite offers three components which can be used stand-alone or in combination to solve image analysis tasks. eCognition Developer is a development environment for object-based image analysis. It is used in earth sciences to develop rule sets (or applications) for the analysis of remote sensing data. eCognition Architect enables non-technical users to configure, calibrate and execute image analysis workflows created in eCognition Developer. eCognition Server software provides a processing environment for batch execution of image analysis jobs.

Industrial Applications

eCognition software is utilized in numerous remote sensing and geospatial application scenarios and environments, using a variety of data types.

Sample application types

Generic: Rapid Mapping, Change Detection, Object Recognition By Environment: Diverse Landcover Mapping, Urban Analysis (i.e. impervious surface area analysis for taxation, property assessment for insurance, inventory of green infrastructure), Forestry (i.e. biomass measurement, species identification, firescar measurement), Agriculture (i.e. regional planning, precision farming, crisis response), Marine and Riparian (i.e. ecosystem evaluation, disaster management, harbor monitoring). Other: Defense, security, atmosphere and climate

Community

The online eCognition community was launched in July 2009 and had 2813 members as of July 9, 2010. Membership is distributed globally and user conferences are held regularly, the last having taken place in November 2009 in Munich, Germany. The bi-annual GEOBIA (Geographic Object Based Image Analysis) conference is heavily attended by eCognition users, with the majority of presentations based on eCognition software.

References

  1. ↑ Trimble / Definiens Joint Press Release: "Trimble Acquires Definiens’ Earth Sciences Business to Expand its GeoSpatial Portfolio". June 11, 2010. http://www.ecognition.com/sites/default/files/Trimble%20eCognition.pdf

[1]

  1. ↑ Benz, U. C., Hofmann, P., Willhauck, G., Lingenfelder, I., & Heynen, M. (2004). Multi-resolution, object-oriented fuzzy analysis of remote sensing data for GIS-ready information. ISPRS Journal of photogrammetry and remote sensing, 58(3), 239-258. http://www.sciencedirect.com/science/article/pii/S0924271603000601
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