Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Persistence (of phosphor) - Display devices
Time it takes the emitted light from screen to decay to one-tenth of its original intensity. The point where an electron gun strikes the phosphor coated screen starts glowing and maximum brightness is observed on the focus (strike) point of the electron gun. The brightness tends to reduce radially as per the Gaussian distribution. Actually at the gun strike point the energy level of phosphor atoms is highest and gradually spreads over the nearby phosphor atoms. The 'original intensity' is the maximum brightness that is achieved when the electron gun strikes the phosphor atoms and the corresponding electrons reach maximum possible 'excited state'. In order to keep the pixel glowing, one requires to re-strike the electron gun on the same point before the screen point fades away, that is, before the energy level of the phosphor atom reduces to a certain limit as defined in the term persistence.
This is known as refreshing of the pixel. Infact the rate of refreshing depends on the type of phosphor used and also on the human perception limits. Before the human eye could catch that the pixel is beginning to reduce its intensity, the pixel must be refreshed. In CRT monitors, the entire screen frame is refreshed normally 30-60 times in a second. This is called refresh rate. Lower persistence phosphors require faster refresh rate and higher persistence phosphors require lower refresh rates. The lower persistence phosphors are used in monitors that are specially designed for animations, whereas higher persistence phosphors are mostly used in complex static representation of objects such as in CAD/CAM (Computer Aided Design/Manufacturing).
Cohen Sutherland algorithm Point clipping is very simple. All you need to check is whether a point is inside the window extremes in x- and y-directions. For line clipping sev
what are the steps involved in 3D transformation
Surface of Revolution - Modeling and Rendering In the previsions sections we have learned different type of techniques of generating curves, although if we wish to generate a
what is fixed point scaling? how composit transformation techniques works on it
Adobe Premiere - Softwares for computer animation It just like the name as is generated by Adobe. This is a tool used to composite digitized video, stills and applies a variet
Event Driven Devices - Polling Polling: The status of all devices is periodically checked in a repetitive manner through a polling loop. While an event happens, the loop is
Remark for Perspective projection - Transformation A Perspective projection can have at most three Principle Vanishing points and at any rate one Principle vanishing point. To
Question: (a) After having worked for several years as a graphic designer you decide to start a company of your own; MediaDesign ltd. The most valuable asset of a company is i
I have an assignment to do & it''s due on Wednesday !
Question (a) List any four audio file formats you know. (b) UTMDigitlab ltd, specialized in digitizing sound, converts an audio stream of the latest album of Shakira into
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd