Vision Group acknowledged

The University of Stirling Vision Group*

In many places in my books, I acknowledge the importance of the role of colleagues from University of Stirling in the development of the new science-based ideas put forward in them. In particular I mention cooperations with scientists from various departments who later were to join me in the University of Stirling Vision Group. The most important of these were:

  • Alistair Watson (Physics, psychology and computer imagery).
  • Leslie Smith* (computing).
  • Bill Phillips* (visual memory and brain function).
  • Karel Gisbers (neurophysiology).
  • Ranald McDonald (statistics and common sense).
  • Lindsay Wilson* (at the time working on aspects of visual perception).

Also, although Peter Brophy* did not join our group, he was an ever-available and important source of information on the biochemistry of the brain.

The founding of the Vision Group.

It was in  the Autumn of 1984 that Alistair, Leslie and I took the first steps in the setting up of the University of Stirling Vision Group, which was to have many meetings attended by the above named colleagues and other members of the various interested Departments. Its starting point was a package of ideas developed by Alistair and myself, and two core algorithms based on them, produced by Alistair.  These were:

  • A colour constancy algorithm, capable of modelling both spatial and temporal colour constancy, which was inspired by our interpretation of how this phenomenon is achieved by human eye/brain systems. As a preliminary step to achieving this main objective, the algorithm has to pick off the information about surface-reflection. Since it was obvious that the reflected-light contained information, we speculated upon how it might be used by the eye/brain. Due to my interest in picture perception, we focused on its potential for computing surface-form, in front/behind relations, and the wavelength composition of ambient illumination.**
  • A “classification/recognition algorithm”, based on our interpretation of how human eye/brain systems achieves their primary task of enabling recognition.***

We could not help being excited by the early tests of these algorithms and the speculations concerning their potential. In our  enthusiasm to push matters further, Alistair suggested we should seek the help of other researchers, particularly ones with expertise in:

  • Mathematics and computing.
  • Visual perception with special reference of visual memory.

It was at this juncture that, having decided on a name for what we were hoping would become a collaborative group, we contacted Leslie Smith for his mathematical and computing skills. But this was only a start. Once Leslie was on board, we approached Bill Phillips, whose long standing interest in visual memory had led him to take the plunge into the recently emerging domain of neural networks and learning algorithms. After many Vision Group meetings, much sharing of ideas, many hours spent working on implementations of algorithms, and the writing of a number of working papers, we decided to submit a suite of five grant applications to the Science and Engineering Research Council, who had let it be known that they were looking for groups of researchers working on the use of computers to model the functional principles of neural system. The stated aim of the SERC was to set up a small number of “Centres of Excellence” in this domain.  Not only were two of our grant applications accepted (one submitted by Bill Phillips and one submitted by Leslie Smith), but also our university was encouraged to create a brand new  Centre for Cognitive and Computational Neuroscience . This empire absorbed the University of Stirling Vision Group which ceased to have an independent existence. Its coming into existence also coincided with my departure from Stirling on my way to founding my Painting School of Montmiral, where I intended to put theory into practice both in my own work and in my teaching. I also had hopes of confirming and, with any luck, extending the theory.

* This same text can be found under the heading of “doubts”.

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Origins of Castelnau de Montmiral

WHY THE NEED FOR A FORTIFIED TOWN IN THE NORTHERN ALBIGEOIS IN THE YEAR 1222?

What I have written below is the result of my efforts to sort out contradictions in the stories concerning the origins of Castelnau de Montmiral that were going the rounds when I first arrived in the town and started teaching at the Painting School of Montmiral in 1988. I cannot claim it to be a definitive history but it represents the best story I have been able cobble together on the basis of the “facts” that I was able unearth. A condensed version appears in the main website on the history page of the main website.

porte de garrics

Porte de Garrics : the ancient entry to the town of Castelnau de Montmiral

Preamble

It took the inhabitants of Castelnau de Montmiral more than 20 years to complete the now tree-lined esplanade that today runs along its north-east facing side. It was ready in 1622, just in time to impress King Louis XIII who stayed there and, amongst other things, is said to have eaten plums in the street, now known as ‘rue Gambetta’. He was on his way to deal with a Protestant uprising that had occurred further South caused by the failure of the local Catholics to keep faith with the Edict of Nantes, which had legally guaranteed freedom of worship for the Protestants.

A main reason why the new esplanade took so long to put in place was that previously there had been a steep escarpment, sloping precipitously down from the still massive ramparts that encircled the town. It is difficult to imagine the quantity of earth and rocks that must have been moved to raise the ground level to its present height, the original rampart walls are seldom visible, as they are now largely obscured by houses that have been built in front of long stretches of where they were located. Likewise the formidable slopes are hidden by the raised and levelled surfaces that were created when constructing the esplanade and the various roads below. All these necessitated great works made possible by men using buckets, wheelbarrows and oxen-drawn carts to move what must have seemed to them to be mountains of stone and earth.

Continue reading “Origins of Castelnau de Montmiral”

Contents Lists for three of my books

The subjects covered are:

1.  Drawing    2. Painting    3. Creativity

These are followed by Posts on other subjects

Preface to all three books

1. DRAWING

Chapters from “Drawing on Both Sides of the Brain”.

Other Posts on Drawing

2. PAINTING

Chapters from “Painting with Light and Colour”:

Other Posts on colour and light in painting:

3. CREATIVITY

Chapters from “Fresh  insights into Creativity”

Extracts from Chapter 10: “Having fun with creativity”

4. PAINTING SCHOOL NEWS

5. MISCELLANEOUS

Your comments on the Contents List page.

I look forward to your comments in the section provided at the bottom of each Post. When you have made them, please leave your email address and tick the box “Notify me of new posts by email.”

ENJOY

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Caladrius bird for the contents list