Publications in Scientific Journals:
P. Kohli, H. Nickisch, C. Rother, C. Rhemann:
"User-Centric Learning and Evaluation of Interactive Segmentation Systems";
International Journal of Computer Vision,
Many successful applications of computer vision to image or video manipulation are interactive by nature. However, parameters of such systems are often trained neglecting the user. Traditionally, interactive systems have been treated in the same manner as their fully automatic counterparts. Their performance is evaluated by computing the accuracy of their solutions under some fixed set of user
interactions. In this paper, we study the problem of evaluating
and learning interactive segmentation systems which are extensively used in the real world. The key questions in this context are how to measure (1) the effort associated with a user interaction, and (2) the quality of the segmentation result as perceived by the user. We conduct a user study to analyze user behavior and answer these questions. Using the insights obtained from these experiments, we propose a framework to evaluate and learn interactive segmentation
systems which brings the user in the loop. The framework is based on the use of an active robot user-a simulated model of a human user. We show how this approach can be used to evaluate and learn parameters of state-of-the-art interactive segmentation systems. We also show how simulated user models can be integrated into the popular max-margin method for parameter learning and propose an algorithm to
solve the resulting optimisation problem.
Interactive systems, Image segmentation, Learning
Electronic version of the publication:
Created from the Publication Database of the Vienna University of Technology.