SMPTE 421, [2] informally known as VC-1, is a video coding format. Most of it was initially developed as Microsoft's proprietary video format Windows Media Video 9 in 2003. With some enhancements including the development of a new Advanced Profile, it was officially approved as an SMPTE standard on April 3, 2006.

2016年10月22日 · VC-1 provides towed targets, acts as interceptors for Hawaiian Air National Guard exercises, provides photo capabilities and aerial refueling. June 9, 1967: Lt. Robert Polich, 27, escaped injury when his A4B Skyhawk (BuNo 142134) sustained major damage when it apparently lost it brakes and smashed into the brush at the Diamond Head end of the ...

H.264 and VC-1 are popular video compression standards gaining use in the industry as of 2007.

Fleet Composite Squadron 1 (VC-1) was an aviation unit of the United States Navy. History: 5 October 1925: established as Utility Squadron 1B (VJ-1B); 15 November 1946: redesignated VU-1 "Blue Alii"; 20 April 1949: redesignated VU-7A; 20 July 1951: redesignated VU-1; 1 July 1965: redesignated VC-1; 30 September 1992: disestablished.

2023年3月31日 · Our largest model, named VC-1, outperforms all prior PVRs on average but does not universally dominate either. Next, we show that task- or domain-specific adaptation of VC-1 leads to substantial gains, with VC-1 (adapted) achieving competitive or superior performance than the best known results on all of the benchmarks in CortexBench.

What does VC-1 actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

2024年11月30日 · VC-1, formally known as SMPTE 421M, is a video coding format that was initially developed by Microsoft. It evolved from Microsoft’s earlier video codecs to become a standardized format for encoding digital video, holding its ground alongside other well-known codecs like H.264 and MPEG-4.

VC-1 is a state-of-the-art video compression format that provides highly competitive video quality, from very low through very high bit rates, at reasonable computational complexity.

VC-1 codes a sequence of images in the YUV 4:2:0 colorspace. Macroblocks, Blocks, and Sub-blocks. When VC-1 codes an image, it divides the image into macroblocks. Each 16x16 macroblock is comprised of 6 8x8 sample blocks (4 Y blocks, 1 U block, and 1 V block).

SMPTE 421, informally known as VC-1, is a video coding format. Most of it was initially developed as Microsoft's proprietary video format Windows Media Video 9 ...