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From: (Dieter Heyer)
Subject:  Helmholtz Conference
Date:     30 May 1994 01:16:26 +0200


                          From Codes To Cognition
                          Foundational Aspects of
                       Visual Information Processing
                          Centennial Conference 
                     in Honour of Hermann v.Helmholtz

                        University of Kiel/Germany
                             17.-21. July 1994

                               Organized by 
                      Dieter Heyer & Rainer Mausfeld

                                 Funded by
                      Deutsche Forschungsgemeinschaft

The conference will address fundamental psychological problems of 
visual perception in areas such as shape from shading, stereo vision, 
colour and form perception and attention. A basic theme recurring 
throughout the conference will be how perceptual achievements relate
to sensory input. Since Helmholtz and his notion of "unconscious 
inferences", several theoretical intuitions (e.g. the concept of
"ill-posed problems", Barlow's statistical model for the discovery 
of "independent coincidences", Ullman and Koenderink's discussion 
of Gibson's idea of "direct perception", Hoffman's "observer 
mechanics", Shepard's ideas on resonance) concerning the principles
of perception have revolved around the attempt to bridge the gap
between the (often 'meagre') sensory input and the actual performance.

The conference will focus on attempts to theoretically understand the 
interaction of
     - restrictions and invariants of the physical environment,
     - theoretical limiting factors of the sensory system   as well as
     - restrictions on the categorization and interpretation of sensory
information that have been internalized in the course of evolution.

          S.ANSTIS (San Diego), L.AREND (Princeton), 
          H.B.BARLOW (Cambridge), H.BUELTHOFF (Tuebingen), 
          M.FAHLE (Tuebingen), D.D.HOFFMAN (Irvine), 
          Chr.KOCH (Pasadena), J.KOENDERINK (Utrecht), 
          D.MACLEOD (San Diego), H.MALLOT (Tuebingen), 
          R.NIEDEREE (Kiel), Chr.NOTHDURFT (Goettingen),
          E.POEPPEL (Muenchen), W.PRINZ (Muenchen),
          V.RAMACHANDRAN (San Diego), E.SCHEERER (Oldenburg), 
          R.SHEPARD (Stanford), G.SPERLING (Irvine), 
          L.SPILLMANN (FREIBURG), S.ULLMAN (Cambridge, Mass.),  
          P.WHITTLE (Cambridge)

Address correspondence to:
                               Dieter Heyer
                              Rainer Mausfeld
                         Institute for Psychology
                            University of Kiel
                           D-24098 Kiel/Germany
                          Phone: +49-431-8804057
                           Fax: +49-431-8802975


INVITED SPEAKERS ONLY, no parallel sessions, ample time for discussions. 

Unlike other conferences the aim of the Helmholtz Conference will 
be to present a resume of the state-of-the-art of the field and 
its foundational problems and challenges. As befits the occasion, 
presentations at the Helmholtz Conference will address a wider scope of
fundamental psychological problems of visual perception. Rather than 
giving mere technical presentations of current empirical findings, 
lectures will point out which classical questions are still unsolved,
which conceptual problems are often hidden behind apparently clear facts,
and discuss tacit assumptions of present research perspectives.


The conference will take place at Kiel University, one of the oldest 
German universities. Kiel is a middle sized town in the north of Germany 
and nicely situated on the shores of the Baltic Sea. It just one hour 
away (car, train) from Hamburg and can be reached by plane from 
Frankfurt and Cologne.


Regular Registration:                        250 DM
Registration for Participants 
from Eastern European Countries:             125 DM
Student Registration:                         62 DM

If you would like to register, please fill out the registration form 
below and send it to the organizers. Please send payment (in DM only) 
by cheque to the organizers or by international bank transfer 

to   Account Number:     25296476 (HELMHOLTZ-CONFERENCE)    
     Bank:               Sparkasse Kiel
     Branch Number: 210 501 70


All invited speakers will reside in a first-class hotel right on the 
shores of Kiel firth. We have managed to obtain special rates (145 DM
for a single room/190 DM for a double room) for a small additional
contingent of rooms at this hotel and these rooms will be allocated on
a first come first served basis.

Addresses of other hotels and guesthouses will be sent (by e-mail only)
on request. Since Kiel is a famous holiday and sailing resort during the 
summer, it is advisable to book accommodation early. 

                        University of Kiel/Germany
                             17.-21. July 1994

                          Preliminary Programme

Sunday, July 17

17.00 - 20.00 Registration at Kieler Yacht Club

Monday, July 18

9.00 - 10.00 E. Scheerer  Computation and Cognition: 
                          The Helmholtzian Legacy 

10.00 - 10.30  Coffee break

Chair: Ch. Nothdurft
10.30 - 11.30 W. Prinz  Perception and Action Planning 
11.30 - 12.30 M. Fahle  Perceptual Learning as an Adaptation 
                        to the Environment 

12.30 - 14.30  Lunch Break

Chair:    H.B. Barlow
14.30 - 15.30  R.N. Shepard  Experimental and Evolutionary 
                             Determinants of Unconscious Inference 
15.30 - 16.30  L. Arend  Perceived Surface Properties and Subjective 
                         Physics: Reinventions of Unconscious Inference 
16.30 - 17.00  Tea Break
17.00 - 18.00  D.D. Hoffman  Unconscious Inference and the 
                            Mind/Body Problem 

18.00 - 18.30  General Discussion

Tuesday, July 19

Chair: D.D. Hoffman
9.00 - 10.00  H. Buelthoff  How are Three-Dimensional Objects 
                           Represented in the Brain? 
10.00 - 10.30  Coffee Break
10.30 - 11.30  S. Ullman  Three Dimensional Object Recognition        
11.30 - 12.30  J.J. Koenderink  Pictorial Relief

12.30 - 14.30  Lunch Break

Chair: R.N. Shepard
14.30 - 15.30  H.B. Barlow  Cognition as Code-Breaking 
15.30 - 16.30  V.S. Ramachandran  A Critique of Pure Vision 

16.30 - 17.00  General Discussion

18.00          Departure for Schloss Gottorf

20.00          Conference Dinner

Wednesday, July 20

10.00 - 11.00  L. Spillmann  Linking Perception to Neurons - Mechanisms 
                             of Brain Structure and Function

11.00 - 11.30  Coffee Break

Chair: W. Prinz
11.30 - 12.30  E. Poeppel Helmholtzian Stimuli Interrupt the 
                         Ongoing Stream of Perception 
12. 30 - 13.30 Ch. Koch  (Title not yet known)

13.30 - 14.30  Lunch break

Chair: H. Buelthoff
14.30 - 15.30  H. Mallot  Shape from Image Intensities 
15.30 - 16.30  S. Anstis  Apparent Motion as a Case of
                          Unconscious Inference      

16.30 - 17.00  General Discussion 

17.30 - 19.00  Panel discussion (in German) "Zukunftsperspektiven einer
               naturwissenschaftlichen Psychologie"

Thursday, July 21

Chair: L. Arend
9.00 - 10.00  D. MacLeod  Brightness and Colour in Complex Displays 
10.00 - 11.00  R. Niederee  Implications of continuity considerations 
                            on perceptual codes: the example of colour
11.00 - 11.30  Coffee Break
11.30 - 12.30  P. Whittle  Contrast coding and Decoding: 
                           Distinguishing the Contributions of Eye 
                           and Brain to Colour Perception 

12.30 - 14.30  Lunch Break

Chair: G. Sommer
14.30 - 15.30  G. Sperling  (Title not yet known)
15.30 - 16.30  Ch. Nothdurft  Preattentive and Attentive Perceptual 
16.30 - 17.00  Tea Break

17.00 - 17.30  General Discussion and End of Meeting


                     HELMHOLTZ CONFERENCE
                      REGISTRATION FORM

NAME:     ________________________________________________

ADDRESS:  ________________________________________________

TEL:      _________________      FAX:   ___________________

E-MAIL:   ________________________________________________

          ( )  I would like to book a (single/double) room
               from July ____ to ____ and include in my 
               payment the corresponding amount for 

                    ( )  I will take care of accommodation myself.

PAYMENT:  I enclose a cheque or a copy of the bank transfer order 
          _____ DM registration fee 
          _____ DM accommodation
          _____ DM total.
Dieter Heyer
2300 Kiel