SIGMA - a knowledge-based aerial image understanding system
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منابع مشابه
Interpreting Aerial Images: A Knowledge-Level Analysis
Many image understanding systems rely heavily on a priori knowledge of their domain of application, drawing parallels with and exploiting techniques developed in the wider field of knowledge-based systems (KBSs). Attempts, typified by the KADS/CommonKADS projects, have recently been made to develop a structured, knowledge engineering approach to KBS development. Those working in image understan...
متن کاملSIGMA: A Framework for Image Understanding - Integration of Bottom-Up and Top-Down Analysis
The framework and control structure of an image understanding system SIGMA arc presented. SIGMA consists of three experts: Geometric Reasoning Expert (GRE) for spatial reasoning. Model Selection Expert (MS'E) for appearance model selection, and Low Level Vision Expert (LIVE) for knowledge—based picture processing. Tills paper mainly describes the control mechanism for the spatial reasoning by G...
متن کاملAscender II, a Visual Framework for 3D Reconstruction
This paper presents interim results from an ongoing project on aerial image reconstruction. One important task in image interpretation is the process of understanding and identifying segments of an image. In this eeort a knowledge based vision system is being presented, where the selection of IU algorithms and the fusion of information provided by them is combined in an eecient way. Knowledge b...
متن کاملKnowledge Directed Reconstruction from Multiple Aerial Images
Image understanding (IU) techniques for automatic site reconstruction have demonstrated success within restricted domains and for small numbers of model classes. However, these techniques often fail when applied out of context and do not \scale-up" into a more general solution. Under the APGD program, we are constructing a knowledge-based site reconstruction system that automatically selects th...
متن کاملKnowledge Based Interpretation of Objects in Topographic Maps and Moorlands in Aerial Images
For the automatic interpretation of remote sensing data and maps prior knowledge derived from a GIS and general knowledge about the properties of the scene objects, such as form, size and texture, can be used to preset constraints for the interpretation process. The image primitives to be interpreted are extracted by image processing algorithms which need in most cases a number of parameters. D...
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تاریخ انتشار 1990