This story originally appeared on the Cinefex blog on 3/10/2015 and is republished here with permission. Learn more about Cinefex magazine here.
Making movies has always been about data capture. When the Lumière brothers first pointed their primitive camera equipment at a steam locomotive in 1895 to record Arrivée d'un train en gare de La Ciotat, what were they doing if not capturing data? In the 1927 movie The Jazz Singer – the first full-length feature to use synchronised sound – when Al Jolson informed an eager crowd, "You ain't heard nothing' yet!", what was the Warner Bros. microphone doing? You guessed it: capturing data.
Nowadays, you can't cross a movie set without tripping over any one of a dozen pieces of data capture equipment. Chances are you'll even bump into someone with the job title of "data wrangler", whose job it is to manage the gigabytes of information pouring out of the various pieces of digital recording equipment.
And in the dead of night, if you're very lucky, you may even spy that most elusive of data capture specialists: the lidar operator.
Lidar has been around long enough to become commonplace. If you read behind-the-scenes articles about film production, you'll probably know that lidar scanners are regularly used to make 3D digital models of sets or locations. The word has even become a verb, as in, "We lidared the castle exterior." Like all the other forms of data capture, lidar is everywhere.
But what exactly is lidar? What does the word stand for, and how do those scanners work? And just how tough is it to scan a movie set when there's a film crew swarming all over it?
To answer these questions and more, I spoke to Ron Bedard from Industrial Pixel, a Canadian-based company, with incorporated offices in the USA, which offers lidar, cyberscanning, HDR and survey services to the motion picture and television industries.