Shape from shading. I: Surface curvature and orientation.

  title={Shape from shading. I: Surface curvature and orientation.},
  author={Alan P Johnston and P J Passmore},
  volume={23 2},
The human visual system makes effective use of shading alone in recovering the shape of objects. Pictures of sculptures are readily interpreted--a situation where shading provides virtually the sole cue to shape. However, shading has been considered a poor cue to depth in comparison with retinal disparity and kinetic cues. Curvature discrimination thresholds were measured with the use of a surface-alignment task for a range of surface curvatures from 0.16 cm-1 to 1.06 cm-1. Weber fractions were… CONTINUE READING

From This Paper

Topics from this paper.
34 Citations
0 References
Similar Papers


Publications citing this paper.
Showing 1-10 of 34 extracted citations

Similar Papers

Loading similar papers…