ITU

The International Telecommunication Union publishes, among other documents, the G (audio), H (video) and T (still image) series. Some of those recommendations are:

• G.711 - A-law/mu-law
• G.72x (various speech codecs)
• H.261
• H.263
• H.264
• T.81 aka JPEG
• T.87, ITU name for JPEG-LS
• T.800, ITU name for JPEG-2000

Website: http://www.itu.int