Assessment of Relative Accuracy of AHN-2 Laser Scanning Data Using Planar Features

AHN-2 is the second part of the Actueel Hoogtebestand Nederland project, which concerns the acquisition of high-resolution altimetry data over the entire Netherlands using airborne laser scanning. The accuracy assessment of laser altimetry data usually relies on comparing corresponding tie elements, often points or lines, in the overlapping strips. This paper proposes a new approach to strip adjustment and accuracy assessment of AHN-2 data by using planar features. In the proposed approach a transformation is estimated between two overlapping strips by minimizing the distances between points in one strip and their corresponding planes in the other. The planes and the corresponding points are extracted in an automated segmentation process. The point-to-plane distances are used as observables in an estimation model, whereby the parameters of a transformation between the two strips and their associated quality measures are estimated. We demonstrate the performance of the method for the accuracy assessment of the AHN-2 dataset over Zeeland province of The Netherlands. The results show vertical offsets of up to 4 cm between the overlapping strips, and horizontal offsets ranging from 2 cm to 34 cm

STEER - D6.3 Dissemination report and revised exploitations plans

STEER aimed to experiment with advanced practices and technological solutions that can improve the user experience of members of the people ecosystem defined by the project as “Social Telemedia”. Such an ecosystem is already showing, and steadily reinforcing, a great potential for influencing the relationships that, exploiting informatics tools and communication networks, communities of people worldwide are growingly establishing around shared interests, attitudes or professional occupations.Besides the achievement of specific research objectives, STEER aimed to pursue a coordinated strategy and actions for the dissemination of results, which involved submissions to relevant journals, conferences and standardization bodies, and (guest) lectures and talks on STEER topics. Opportunities in the market segments where each industrial partner is active should materialize in the proposition of new or enhanced products or services for social media / social TV and consumer / home devices and applications, which the cooperation in the project makes possible.As a final step in this direction, this deliverable, dissemination report and revised exploitations plans, contains an account of the project dissemination activities that include scientific papers, press releases, leaflets and white papers as well as all standardization contributions and potential patents. Furthermore, it present all partners’ revised (final) exploitation plans in the light of the outcome of the executed experiments.STEER partners disseminated actively their results, involving submissions to relevant journal papers, attending and publishing in conferences and standardization bodies, providing lectures on our technologies, and posting regular updates on our communication platforms. By combining computer sciences and communication networks information, STEER proved to be very successful in bringing useful tools to communities of people sharing common interests. These business opportunities have been exploited in many different sectors. In addition to the concrete tools developed under STEER and already commercially available are presented.This document further has taken into account crucial feedback and comments as expressed by the STEER review committee, during and after the first review of the STEER project, in March 2014. Specifically, this document has presented a fully updated STEER website design, and significantly increased presence on social and video platforms. This document further contains a description of STEER products. Also, the document has presented per-partner exploitation plans, covering both within-consortium follow-up as well as opportunities with external stakeholders. Lastly, this document contains an ethical challenges chapter, including detailed information on how these challenges were met during the experiment, thus providing important information to prospective stakeholders