A Perceptually-Supported Sketch Editor

The human visual system makes a great deal more of images than the elemental marks on a surface. In the course of viewing, creating, or editing a picture, we actively construct a host of visual structures and relationships as components of sensible interpretations. Thispaper shows howsome ofthese computational processes can be incorporated into perceptuallysupported image editing tools, enabling machines to better engage users at the level of their own percepts. We focus on the domain of freehand sketch editors, such as an electronic whiteboard application for a pen-based computer. By using computer vision techniques to perform covert recognition of visual structure as it emerges during the course of a drawing/editingsession, a perceptuallysupportedimage editorgives users access to visual objects as they are perceived by the human visual system. We present a flexible image interpretation architecture based on token grouping in a multiscale blackboard data structure. This organization ...

• Type: Conference
• Year: 1994
• Where: UIST
• Authors: Eric Saund, Thomas P. Moran
• Keywords: Image Editing Tools, Software Engineering, UIST 1994, Visual Structure, Visual System