Sound of sex could alert internet porn filter
- It doesn't take much imagination to guess what a porn video sounds like. It's more impressive, however, when it's a computer that's doing the guessing.Automatic image-analysis systems are already used to catch unwanted pornography before it reaches a computer monitor. But they often struggle to distinguish between indecent imagery and more innocuous pictures with large flesh-coloured regions, such as a person in swimwear or a close-up face. Analysing the audio for a "sexual scream or moan" could solve the problem, say electrical engineers MyungJong Kim and Hoirin Kim at the Korea Advanced Institute of Science and Technology in Daejeon, South Korea.