Qualitative kinematics: a framework
Readings in qualitative reasoning about physical systems
Qualitative kinematics of linkages
Recent advances in qualitative physics
Time perception: problems of representation and processing
The handbook of brain theory and neural networks
Symbolic Description and Visual Querying of Image Sequences Using Spatio-Temporal Logic
IEEE Transactions on Knowledge and Data Engineering
Eine hybride Repräsentation von Objektbewegungen: Von analogen zu propositionalen Beschreibungen
Repräsentation und Verarbeitung räumlichen Wissens
Integrating Vision and Language: Towards Automatic Description of Human Movements
KI '95 Proceedings of the 19th Annual German Conference on Artificial Intelligence: Advances in Artificial Intelligence
Qualitative kinematics in mechanisms
IJCAI'87 Proceedings of the 10th international joint conference on Artificial intelligence - Volume 1
Shape Nouns and Shape Concepts: A Geometry for 'Corner'
Spatial Cognition, An Interdisciplinary Approach to Representing and Processing Spatial Knowledge
Visual Processing and Representation of Spatio-temporal Patterns
Spatial Cognition II, Integrating Abstract Theories, Empirical Studies, Formal Methods, and Practical Applications
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The problem of representation and processing of motion information is addressed from an integrated perspective covering the range from early visual processing to higher-level cognitive aspects. A spatio-temporal memory is presented as indispensible representational prerequisite for the recognition of spatiotemporal gestalt. We assume that this structure is replicated on different processing-levels in the visual system mirroring its hierarchical structure. Thus, each level requires a different representation for spatio-temporal information. As a first step, we present a two-layered architecture for the qualitative representation of motion trajectories: The vectorial layer is quite accurate and allows switches between deictic and intrinsic frame of reference. The propositional layer is more abstract and reveals similarities and regularities of motion paths which will be useful for motion prediction. First psychophysical experiments indicate that information about direction and position are not stored independently but mereley in form of a spatio-temporal compound.