Before that trip I spent weeks trying to understand how those vision systems actually worked. Much of that studying happened the old-fashioned way—sitting in the MIT library or collecting textbooks at the MIT Coop or Quantum Books in Kendall Square.
The terminology in those books sounded intimidating: convolution, edge detection, morphological operations.
But once you peeled away the math, the idea underneath was surprisingly simple.
Inside a computer an image is just a grid of numbers representing brightness. The machine scans those numbers looking for shapes by comparing one pattern of pixels to another. A row of bright pixels next to dark ones might indicate an edge. A certain arrangement of edges might suggest a bolt head or a hole in a metal plate moving down an assembly line.
The computer didn’t know what any of those things were.
It was simply measuring resemblance.
Once you saw it that way, machine vision looked less like sight and more like pattern matching—the same trick those early text programs had been using with words. The data had changed, but the idea hadn’t.
That thought was still rattling around in my head when I arrived at the conference.
I was bored.
The attendees—in their gray suits, gray complexions, and ties—looked like they would rather be someplace else. After a few hours wandering past conveyor belts, inspection cameras, and robot arms moving parts around, the whole place began to feel heavy.
I called a friend back in Boston and told him I was anxious to get home.
He said there was another conference going on at McCormick Place that might be a good change of scene. He had heard there was a lot of interest in how computers might be used in the music industry and thought I should check it out.
“Give me a couple of hours,” he said. “I’ll get you a pass.”
NAMM was a different world.
Where the robotics show had been quiet and cautious, NAMM was loud and chaotic. Electric guitars wailed from one booth while drum kits thundered from another. Synthesizers made sounds that seemed to come from distant planets. Violin makers stood beside Steinways while instrument designers demonstrated things nobody had quite seen before. Some people had purple hair. Others wore silk tights. Early mobile phones hung from shoulder bags like field radios.
It was impossible not to smile.