1. Texture and reflection in computer generated images
2. Hierarchical view-dependent structures for interactive scene manipulation
3. Fast filter transform for image processing
4. Brian Carrihill and Robert Hummel . Experiments with the intensity ratio depth sensor . In Computer Vision, Graphics, and Image Processing , volume 32 , pages 337 -- 358 , 1985 . Brian Carrihill and Robert Hummel. Experiments with the intensity ratio depth sensor. In Computer Vision, Graphics, and Image Processing, volume 32, pages 337--358, 1985.