why the computer screen is seen flikering when viewed through a digital camera?
109623
It has to do with the sampling speed of the digital video camera, and the refresh rate of the computer screen. It also is connected with the length of time that it takes to expose one frame in the digital video camera. \n\nIf there are successive images presented often enough, the human optical system interprets it as continuous movement. This is called the phi phenomenon (see reference).\n\nIf the computer screen updates at the same sample rate as the digital video camera, and there is no phase difference, then the digital video camera will show the screen exactly as humans view it. \n\nIf there is a phase difference between the two, this will appear as a flash on the digital video camera as the scene changes while the camera frame is being exposed. \n\nIf the computer screen updates slower than the sampling rate of the digital video camera, then one might see a flash during those frames when there is a screen update if the inherent exposure time of the CCD elements is too slow. \nThis will happen if the sampling rate of the camera is not an integer multiple of the refresh rate of the screen. If the sampling rate of the camera is an integer multiple of the sampling rate of the camera and there is a nonzero phase difference, then again one will see a flash when the screen updates. \n\nIf the refresh rate of the screen is sufficiently fast that the interval between successive screens is very short, then the fact that the CCDs in the digital video camera will integrate over the flash, and it might not appear, but the picture might be a bit blurry, especially if there is a lot of movement in the screen's image. \n\nThis is not really the Nyquist sampling effect, which is what happens when something of very high frequency is sampled at too low a frequency. However, if the motion on the screen is something like a wagon wheel turning rapidly enough that the sampling rate of the digital video camera is not at least twice the rotational frequency of the wagon wheel, then there will be a Nyquist-type effect; the wagon wheel will appear to be stationary, or even going in reverse.
807887
Im guessing it must be something with that model of computer.  I also have an HP Pavilion a1130n and my computer does the same thing occasionally.  The only thing I can do about is to restart the computer.  Is your computer also running windows xp media center edition like mine?
844066
It is possible that your problem might be coming from your video card.  Try testing the monitor on another computer to see if it recreates the same problem.  If that is the case you might need to get another video card.  If not, I personally would pitch the monitor and get another one.  Unless you know a lot about electronics messing around with it is ill advised.  There are large capacitors inside monitors that can seriously injure you.\n\nHope this helps and GL :-)
197207
If it is only some pictures, it is a problem on the web site.  If it is ALL PICTURES ANYWHERE, you need to go to Tools/Internet Options/Advanced to fix problems like that.  Before you try to fix it, right click on a picture and select "show picture."  If it shows up, it is your computer.  If not, it is a web site problem.
440735
if the streak is just like one pixel wide, then no, there's sadly nothing you can do about it... sometimes that happens\n\nif it's under warranty, call dell about replacing your screen for you
645359
On older CRT monitors (resemble a TV), having the same image on-screen for a long time would cause it to start etching into the glass. This was called "monitor burn".\n\nUsually happened worst on monochrome displays; almost never happens nowadays, and can't happen to LCD displays.
247792
you use a screen.....and the software to use is probably "final cut pro" or something like that.
1003522
ur monitor might be out dated. I had a ol packard bell monitor that took 30 min to warm up and then it was blurry and all messed up becasue of it's old age.
158482
It may be because of the electricity fluctuation. Or their may be a problem with your monitor's picture tube.
441916
It's probably a loose connection between your monitor (screen) and you're computer. Check the cables that run from your monitor to your computer and make sure they're not loose.
744774
It may be the display adaptor hardware in your PC? I assume its integrated into motherboard so do you have (or can borrow) a PCI display adaptor to test this theory? or better yet another computer or laptop you can test the monitor with to see if its the problem or its your PC... Good luck!
101734
This is a permanent damage that has happened to you LCD screen. \n\nThe problem might be dead or lit pixels:\nOccasionally the individual transistors responsible for carrying current to a pixel either short out or remain open resulting in what is called a dead pixel. \n\nA "lit" pixel is one that appears as one of several randomly placed white, red, blue or green pixel elements on a dark background, or you may have a "missing" pixel which shows up as a black dot on a light colored background.\n\nThis can only be replaced by the manufacturer as usually this kind of problem is not repairable in India.\n\nIf your laptop is under waranty period your lucky!
465151
I had the same problem years back with my desktop computer and my computer and monitor were both brand new at the time, so i have to disagree that the problem is the monitor or the video card. I agree with you that it is a virus causing the problem. Some viruses have the ability to change the registry and some have the ability to affect programs in your computer. It could also be a spyware or a hi-jacker. As far as i can remember, i just erased my harddrive completely and reinstalled the factory installed software back. Another problem i encountered was when my desktop computer started to run really slow and i just can't fix it with my anti-virus and anti-spyware software, so what i did was buy a new harddrive (fastest and with more memory) and threw the old one out.
1121362
the images on a computer screen are "hard" or "fixed" images.  Staring at the screen for long periods of time can damage your eyes.  Give you eyes a break by looking out the window for 5 minutes every hour.  Good luck
887236
It sound's like you've got an anti-aliasing issue going on. \nOr your picture is very low res. This would cause jaggies to form on your type.
204585
Here are few things that you need to check.\n\n1. What is the operating system.\n2. When you connect your digital camera to the PC, do you see a "Green Arrow" icon appearing in the "Task Bar"?\n3. If it does then open the Windows Explorer and you will find your Camera listed as another "Storage Disk", say E:\n4. You can simply browse through that and copy your pictures without relying on the Software that you have installed for that camera.\n\n.:Fishie:.
1013043
that's because your computer is not ''java scripted''. ull have to download the software... to see those images.