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...
11 KB (1,330 words) - 21:39, 25 April 2024
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...
28 KB (3,733 words) - 19:39, 17 March 2024
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...
88 KB (10,720 words) - 16:51, 25 April 2024
Koenigsegg (category Articles with hAudio microformats)
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)...
55 KB (4,993 words) - 23:18, 25 May 2024
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...
17 KB (1,839 words) - 03:15, 27 September 2023
Advanced Video Coding (redirect from H.264)
cosine-based formulas and tolerances expressed in earlier standards (such as H.261 and MPEG-2), integer processing provides an exactly specified decoded result...
89 KB (9,769 words) - 08:37, 27 May 2024
Payload Format for JPEG-compressed Video RFC 4587, RTP Payload Format for H.261 Video Streams RFC 2658, RTP Payload Format for PureVoice Audio Video RFC 4175...
16 KB (705 words) - 03:19, 11 December 2023
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....
4 KB (381 words) - 00:58, 26 April 2024
High Efficiency Video Coding (redirect from H.265/MPEG-H Part 2)
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...
153 KB (16,482 words) - 18:36, 10 May 2024
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)...
20 KB (1,807 words) - 07:14, 12 April 2024
sequences used in video teleconferencing systems. It was first defined in the H.261 standard in 1988. As the word "common" in its name implies, CIF was designed...
6 KB (819 words) - 04:38, 17 May 2023
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...
6 KB (721 words) - 17:33, 24 March 2024
the ITU-T or ISO) share the same basic architecture that dates back to H.261 which was standardized in 1988 by the ITU-T. They mostly rely on the DCT...
69 KB (7,563 words) - 04:20, 28 May 2024
China Railway CR400AF (category Passenger trains running at least at 350 km/h in commercial operations)
is designed to operate at a cruise speed of 350 km/h (217 mph) and a maximum speed of 420 km/h (261 mph) in commercial service. Development on the project...
23 KB (1,112 words) - 12:08, 21 May 2024
compression for video coding, leading to the development of the H.261 standard. H.261 was the first practical video coding standard, and was developed...
15 KB (1,857 words) - 02:15, 1 January 2024
China Railway CR400BF (category Passenger trains running at least at 350 km/h in commercial operations)
is designed to operate at a cruise speed of 350 km/h (217 mph) and a maximum speed of 420 km/h (261 mph) in commercial service. Development on the project...
20 KB (887 words) - 15:34, 17 May 2024
reflected terminologically in the literature. The H.264 specification calls H.261, H.262, H.263, and H.264 video coding standards and does not contain the...
38 KB (3,692 words) - 19:30, 10 May 2024
Versatile Video Coding (redirect from H.266)
Versatile Video Coding (VVC), also known as H.266, ISO/IEC 23090-3, and MPEG-I Part 3, is a video compression standard finalized on 6 July 2020, by the...
23 KB (2,052 words) - 18:27, 27 April 2024
video coding format, H.261, in 1988. It was followed by more popular DCT-based video coding formats, most notably the MPEG and H.26x video standards from...
17 KB (2,013 words) - 00:12, 11 May 2024
Inter frame has been specified by the CCITT in 1988–1990 by H.261 for the first time. H.261 was meant for teleconferencing and ISDN telephoning. Data is...
3 KB (370 words) - 18:00, 17 February 2024
The Chiron's top speed is electronically limited to 420 km/h (261 mph), or 375–380 km/h (233–236 mph) without the specific key, for safety reasons, mainly...
58 KB (5,340 words) - 18:02, 25 May 2024
directly to its practical successors, such as H.261. The latest revision was published in March 1993. H.120 streams ran at 1544 kbit/s for NTSC and 2048 kbit/s...
4 KB (411 words) - 22:11, 25 April 2024
compression. The H.261 standard was developed based on DCT compression, becoming first practical video coding standard. Since H.261, DCT compression has...
36 KB (4,384 words) - 08:00, 26 April 2024
seconds, and 300 km/h (186 mph) in 13.1 seconds. The top speed is 420 km/h (261 mph). Bugatti is the only automaker to build a W16 engine that produces...
42 KB (4,358 words) - 03:34, 23 May 2024
reconstruct the original video. CCIR 601 (ITU-T) H.261 (ITU-T) H.263 (ITU-T) H.264/MPEG-4 AVC (ITU-T + ISO) H.265 M-JPEG (ISO) MPEG-1 (ISO) MPEG-2 (ITU-T +...
34 KB (3,633 words) - 14:14, 24 May 2024
payloads are H.261, H.263, H.264, H.265 and MPEG-1/MPEG-2. The mapping of MPEG-4 audio/video streams to RTP packets is specified in RFC 3016, and H.263 video...
20 KB (2,285 words) - 20:01, 26 April 2024
codecs from 5.3 to 64 kbit/s, while the video is encoded using the H.263 and H.261 codecs. Application sharing is performed using the "Share 2.0" protocol...
7 KB (677 words) - 00:45, 16 March 2024
is very similar to MPEG-1 Video (and even quite similar to the earlier H.261 standard), so the entire description below applies equally well to MPEG-1...
23 KB (2,572 words) - 21:12, 25 April 2024
was discovered by C. H. F. Peters on October 31, 1886, in Clinton, New York and was named after the Greek Oceanid Prymno. "261 Prymno". JPL Small-Body...
4 KB (178 words) - 14:39, 25 December 2023
cosine transform (DCT) H.261 Motion JPEG MPEG-1 Part 2 MPEG-2 Part 2 (H.262) MPEG-4 Part 2 (H.263) Advanced Video Coding (AVC / H.264 / MPEG-4 AVC) (may...
27 KB (3,284 words) - 12:22, 22 May 2024