User:VictorA2022/sandbox

VICTOR: Put all of your work that you have done so far on the Digital Video article in This Sandbox, including your bibliography.



Week 15: Final Contribution

'''Digital Video: Digital Video is audio and visual mixed together to make a production. the data gathered used to create a video, rather than a series of photos put together. Digital video have many advantages such as easy copying, multicasting, easy sharing and storage. Video recorded on tape is used on a computer on media player. Digital video is made of images displayed rapidly frequencies of 15, 24,30, and 60 frames per second. There is a saying "A picture is worth a thousand words." Pertaining to Digital Video the saying is "a video represents a million of those words strung together"'''

'''Until recently, only exclusive film professionals tackled the idea of Digital Video. In the last couple of years quality have been enhanced, the cost of equipment price has decreased. There has been many new softwares that has been introduced making life easier as a film creator. Creators now have access to softwares right on their computers. The change in the culture of digital video has gained the interest of new people causing the culture to grow. Also in today's world digital video can capture video from any camera. either a traditional analog camcorder or a iPhone.'''

Digital cinematography, Image sensor, and Video camera The basis for digital video cameras are metal-oxide-semiconductor (MOS) image sensors.[2] The first practical semiconductor image sensor was the charge-coupled device (CCD), invented in 1969[3] by Willard S. Boyle, who won a Nobel Prize for his work in physics.[4] Based on MOS capacitor technology.[2] Following the commercialization of CCD sensors during the late 1970s to early 1980s, the entertainment industry slowly began transitioning to digital imaging and digital video over from analog video the next two decades.[5] The CCD was followed by the CMOS active-pixel sensor (CMOS sensor),[6] developed in the 1990s.[7][8] CMOS are beneficial because of their small size, high speed, and low power usage. CMOS are most commonly found today in the digital cameras in iPhones, used as the image censor for the device.[9]

Digital video production[edit] Starting in the late 1970s to the early 1980s, video production equipment that was digital in its internal workings was introduced. These included time base correctors (TBC)[a] and digital video effects (DVE) units.[b] They operated by taking a standard analog composite video input and digitizing it internally. This made it easier to either correct or enhance the video signal, as in the case of a TBC, or to manipulate and add effects to the video, in the case of a DVE unit. The digitized and processed video information was then converted back to standard analog video for output.

Later on in the 1970s, manufacturers of professional video broadcast equipment, such as Bosch (through their Fernseh division) and Ampex developed prototype digital videotape recorders (VTR) in their research and development labs. Bosch's machine used a modified 1 inch type B videotape transport and recorded an early form of CCIR 601 digital video. Ampex's prototype digital video recorder used a modified 2-inch quadruplex videotape VTR (an Ampex AVR-3) fitted with custom digital video electronics and a special "octaplex" 8-head headwheel (regular analog 2" quad machines only used 4 heads). Like standard 2" quad, the audio on the Ampex prototype digital machine, nicknamed by its developers as "Annie," still recorded the audio in analog as linear tracks on the tape. None of these machines from these manufacturers were ever marketed commercially.

Digital video was first introduced commercially in 1986 with the Sony D1 format, which recorded an uncompressed standard definition component video signal in digital form. Component video connections required 3 cables, but most television facilities were wired for composite NTSC or PAL video using one cable. Due this incompatibility the cost of the recorder, D1 was used primarily by large television networks and other component-video capable video studios.

Digital video and culture
'''Digital video is always evolving. There was a time in the digital video evolution called DVD time and at point in time that was popular. According to DVD Time by Rob Cover it talks about how DVD Video culture had been growing in the year of 2002. This reading show the growing rate in DVD. This shows that the importance of evolution of digital video. During that time DVD was important role to the emerging of digital video and now it's evolving even more.'''

Culturally, digital video has allowed video and film to become widely available and popular, beneficial to entertainment, education, and research. Digital video is increasingly common in schools, with students and teachers taking an interest in learning how to use it in relevant ways. Digital video also has healthcare applications, allowing doctors to track infant heart rates and oxygen levels.

In addition, the switch from analog to digital video impacted media in various ways, such as in how business use cameras for surveillance. Closed circuit television (CCTV) switched to using digital video recorders (DVR), presenting the issue of how to store recordings for evidence collection. Today, digital video is able to be compressed in order to save storage space.