Search results
Results from the WOW.Com Content Network
DVCPRO HD, also known as DVCPRO100 and D-12, is a high-definition video format that can be thought of as four DV codecs that work in parallel. Video data rate depends on frame rate and can be as low as 40 Mbit/s for 24 frame/s mode and as high as 100 Mbit/s for 50/60 frame/s modes. Like DVCPRO50, DVCPRO HD employs 4:2:2 color sampling.
A tracking shot is a blanket term used to refer to any camera shot with movement, with "trucking shot" and "dolly shot" being tracking shot variations. Generally, a "dolly shot" refers to a specific variation of tracking shot in which the camera moves forwards or backwards with respect to the subject.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us
In the case of VHS, a linear control track at the tape's lower edge holds pulses that mark the beginning of every frame of video; these are used to fine-tune the tape speed during playback and to get the rotating heads exactly on their helical tracks rather than having them end up somewhere between two adjacent tracks. However, the exact ...
The Sony HDVS system, launched in 1984, allowed 1080i recording in the late 1990s. Sony later released a HD version of Betacam called HDCAM in 1997. Panasonic launched DVCPRO HD in 2000, expanding the DV codec to support high definition (HD). The format was intended for professional camcorders, and used full-size DVCPRO cassettes.
The advantage of automatic tracking is that the computer can create many points faster than a human can. A large number of points can be analyzed with statistics to determine the most reliable data. The disadvantage of automatic tracking is that, depending on the algorithm, the computer can be easily confused as it tracks objects through the scene.
A widely used system is the Defy Dactylcam, which travels along the cable with a motor, and the Newton stabilized camera head [1] which controls the camera and lens. This system is for example used at the live TV broadcast of Major League Baseball , UEFA (football), track and field, concerts and ski competitions.
The HC-W850/HC-V750 models released in 2014 introduce a new lenses, sensor, engine combination. The new four-drive lens system allows a 20x optical zoom level vs 12x optical zoom in HC-X920 which has a similar body size. A single 1/2.3" MOS with back side illumination sensor replaces the 3MOS sensor last seen in HC-X920.