The work deals with computer analysis of textured outdoor scenes involving grass, trees, water and clouds. Descriptions of texture are formalized from natural language descriptions; local descriptors are obtained from the directional and nondirectional components of the Fourier transform power spectrum. Analytic expressions are obtained for orientation, contrast, size, spacing, and in periodic cases, the locations of the choice of sizes is made by a simple higher-level program. The process of region growing is represented by a sheaf-theoretical model which formalizes the operation of pasting local structure (over a window) into global structure (over a region). Programs were implemented which form regions of similar color and similar texture with respect to the local descriptors. (Author Modified Abstract).

The system utilizes different tracking techniques in order to observe the task in an active, adaptive and goal-directed manner."

Results of a simulation are described to demonstrate the role of manipulation in such an endeavor."

We use this information without making a priori assumptions of distributions within the intervals or a priori assumptions of the probability of a given result."