H.261 is an ITU-T video compression standard, first ratified in November 1988. It is the first member of the H.26x family of video coding standards in...

codecs: H.261, H.263, H.264, H.265 All H.323 terminals providing video communications shall be capable of encoding and decoding video according to H.261 QCIF...

video coding was the H.261 standard produced by the CCITT (now known as the ITU-T). The basic architecture established in H.261 was the motion-compensated...

420 km/h (261 mph) (claimed) Koenigsegg Agera S (2013–2014) 5 units – 0–100 km/h (62 mph) 2.9 sec, 0–200 km/h (124 mph) 7.9 sec. Top speed 420 km/h (261 mph)...

version of H.263 was completed in 1995 and provided a suitable replacement for H.261 at all bit rates. It was further enhanced in projects known as H.263v2...

are H.221, H.230, H.242, audio codecs such as G.711 (PCM) and G.728 (CELP), and discrete cosine transform (DCT) video codecs such as H.261 and H.263....

they are called MCU blocks, H.261, MPEG-1 Part 2, H.262/MPEG-2 Part 2, H.263, MPEG-4 Part 2, and H.264/MPEG-4 AVC. In H.265/HEVC, the macroblock as a...

same "hybrid" approach used in all modern video standards, starting from H.261, in that it uses inter-/intra-picture prediction and 2D transform coding...

cosine-based formulas and tolerances expressed in earlier standards (such as H.261 and MPEG-2), integer processing provides an exactly specified decoded result...

430 km/h eXperimental) is a South Korean high-speed train intended for a maximum speed of 430 km/h (267 mph). On 31 March 2013, it achieved 421.4 km/h (261.8 mph)...