Jan J Koenderink
Affiliation: Delft University of Technology
Country: The Netherlands
- Rank order scaling of pictorial depthAndrea van Doorn
Delft University of Technology, Industrial Design, Landbergstraat 15, NL 2628 CE Delft, The Netherlands Email
Iperception 2:724-44. 2011..Perhaps surprisingly, we find no correlation between the number of distinct depth layers and the total metrical depth range. Thus, the relation between subjective magnitude and discrimination threshold fails to hold for pictorial depth...
- Awareness of the light field: the case of deformationAndrea J van Doorn
Industrial Design Delft University of Technology e mail
Iperception 3:467-80. 2012..This is an idiosyncrasy of the human visual system, on par with the fact that visual awareness fails to present the observer with saddle shapes...
- DepthJan J Koenderink
University of Leuven K U Leuven, Laboratory of Experimental Psychology, Tiensestraat 102 Box 3711, BE 3000 Leuven, Belgium, and Delft University of Technology, EEMCS, MMI, Mekelweg 4, NL 2628 CD Delft, The Netherlands E mail
Iperception 2:541-64. 2011..We introduce a number of general ways to design and implement methods of geodesy in pictorial space, and discuss some basic problems associated with such measurements. We deal mainly with conceptual issues...
- Blow-up: a free lunch?Jan Koenderink
Delft University of Technology, EEMCS, MMI, Mekelweg 4, NL 2628 CD Delft, The Netherlands and University of Leuven KU Leuven, Laboratory of Experimental Psychology, Tiensestraat 102, Box 3711, BE 3000 Leuven, Belgium E mail
Iperception 3:141-5. 2012..We demonstrate cases of blow-ups that do not sacrifice apparent resolution. This apparent information gain is due to "amodal occlusion."..
- Geometry of imaginary spacesJan J Koenderink
Delft University of Technology, Man Machine Interaction Group, EEMCS, P O Box 5031, 2600 GA Delft, the Netherlands Katholieke Universiteit Leuven, Laboratorium voor Experimentele Psychologie, Tiensestraat 102, Bus 3711, 3000 Leuven, Belgium The Flemish Academic Centre for Science and the Arts, Academy Palace, Hertogsstraat 1, 1000 Brussel, Belgium Electronic address
J Physiol Paris 106:173-82. 2012..My overall conclusion-with notable exceptions-is that present day science has no clue. I indicate some possibly rewarding directions of research...
- The prior statistics of object colorsJan J Koenderink
Delft University of Technology, Faculty of Electrical Engineering, Mathematics, and Computer Science, Mekelweg 4, 2628 CD Delft, The Netherlands
J Opt Soc Am A Opt Image Sci Vis 27:206-17. 2010..The qualitative nature of this non-uniformity is due to trichromacy...
- Depth in box spacesSylvia C Pont
π lab, Industrial Design, Delft University of Technology, Landbergstraat 15, 2628 CE Delft, The Netherlands
Seeing Perceiving 25:339-49. 2012..Thus observers ignore 'veridicality'. This does not fit an 'inverse optics' model. We discuss a model of 'vision as optical user interface'...
- Cast shadows in wide perspectiveSylvia C Pont
Perceptual Intelligence Laboratory pi lab, Industrial Design Engineering, Delft University of Technology, Landbergstraat 15, 2628 CE Delft, The Netherlands
Perception 40:938-48. 2011..The systematic deviations could be well described by a weighted linear combination of the directions in the picture plane and in the physical space, with weights that depended on the positions of, and distance between, the poles...
- What are the uncurved lines in our visual field? A fresh look at Helmholtz's checkerboardAugustinus H J Oomes
Man Machine Interaction Group, Delft University of Technology, 2600 GA Delft, The Netherlands
Perception 38:1284-94. 2009..Interestingly, the effect is about half as strong as Helmholtz claimed. Furthermore, we found considerable inter-individual differences...
- Pictorial depth probed through relative sizesJohan Wagemans
University of Leuven KU Leuven, Laboratory of Experimental Psychology, Tiensestraat 102 Box 3711, BE 3000 Leuven, Belgium E mail
Iperception 2:992-1013. 2011..We discuss a simple formal framework that allows one to handle individual differences. We also compare the depth scale obtained by way of this method with depth scales obtained in totally different ways, finding generally good agreement...
- Measuring 3D point configurations in pictorial spaceJohan Wagemans
University of Leuven, Laboratory of Experimental Psychology, Tiensestraat 102 Box 3711, 3000 Leuven, The Netherlands E mail
Iperception 2:77-111. 2011..This is expected on the basis of a formal analysis of monocular optical structure. The method will prove useful in a variety of potential applications...
- The shading cue in contextJohan Wagemans
University of Leuven K U Leuven, Laboratory of Experimental Psychology, Tiensestraat 102 bus 3711 3000 Leuven present address Tiensestraat 102 bus 3711 3000 Leuven, Belgium E mail
Iperception 1:159-78. 2010....
- Interaction of depth probes and style of depictionAndrea J van Doorn
Industrial Design, Delft University of Technology, Landbergstraat 15, NL 2628 CE Delft, The Netherlands E mail
Iperception 3:528-40. 2012..They are apparently characteristic of the person. The differences between depths as sampled by the 2 methods depend upon the style of the picture. This is the case for all observers except one...
- Shading, a view from the insideJan J Koenderink
EEMCS, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The Netherlands
Seeing Perceiving 25:303-38. 2012..It is especially suited to biological (and thus AI) implementation. We consider a number of predictions and confront them with available empirical evidence...
- Does monocular visual space contain planes?Jan J Koenderink
Delft University of Technology, Faculty of EEMCS, 2628 CD Delft, The Netherlands
Acta Psychol (Amst) 134:40-7. 2010..The qualitatively different behavior of experienced observers implies that the generic population might well be inhomogeneous with respect to the structure of visual space...