Video data compression artifacts. MPEG (Motion Picture Experts Group) Video has flaws that occasionally show up. Revealed objects for instance. Like a moving soccer ball that’s momentarily hidden behind a passing vehicle will appear to materialize out of thin air after the vehicle has passed by. Sometimes resolution drops off sharply for instance in a field of waving grain, or in a pan across a crowd. It’s miraculous video can be “streamed” at all, and MPEG compression is responsible, but it’s not perfect. Neither is human vision. Consider the data density of a single frame of 35mm film. (Upwards of 1Mb) Imagine the bandwidth required to transmit 24/sec of those. You’d need a really big pipe. So they just encode the differences between frames. That’s compression in a nutshell. Our brains are amazing, but also prone to making something out of nothing.
Video data compression artifacts. MPEG (Motion Picture Experts Group) Video has flaws that occasionally show up. Revealed objects for instance. Like a moving soccer ball that’s momentarily hidden behind a passing vehicle will appear to materialize out of thin air after the vehicle has passed by. Sometimes resolution drops off sharply for instance in a field of waving grain, or in a pan across a crowd. It’s miraculous video can be “streamed” at all, and MPEG compression is responsible, but it’s not perfect. Neither is human vision. Consider the data density of a single frame of 35mm film. (Upwards of 1Mb) Imagine the bandwidth required to transmit 24/sec of those. You’d need a really big pipe. So they just encode the differences between frames. That’s compression in a nutshell. Our brains are amazing, but also prone to making something out of nothing.