Detour III
Mike Celona | Myspace Video
Defined
phosphor dot
noun
Quotations
"If you have ever tried to point your video camera at your TV set or your computer monitor to record the image you see, you know that it does not work -- instead of the stable image that your eyes see, there is either incredible flicker or a black rolling bar. This short video file shows you what happens when you try it. The video shows two different frequencies for the monitor: 70 Hz and then 60 Hz.
- (Electricity) a dot of red, green or blue phosphor arranged with others in a pattern on a colour television screen
Quotations
"If you have ever tried to point your video camera at your TV set or your computer monitor to record the image you see, you know that it does not work -- instead of the stable image that your eyes see, there is either incredible flicker or a black rolling bar. This short video file shows you what happens when you try it. The video shows two different frequencies for the monitor: 70 Hz and then 60 Hz.
The flicker is caused by two things:
- A difference in the scanning frequency between the TV and the camera
- A difference in the way the phosphor dots are perceived between the human eye and the camera's image sensor"
http://electronics.howstuffworks.com/question336.htm
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| Banned | Join Date: Dec 2005 Posts: 63 |
line on the tv screen
when you record a tv or computer screen there is a God damn line that goes up and down it and I WANT IT TO GO THE FUDGE AWAY CAUSE IT MAKES ME SAD!!!!! BOOOOO FRICKITY HOOO! So how would I go about doing that?"
http://forum.camcorderinfo.com/bbs/t130455.html
Annotated Bibliography
Railton, Renee Caron Richards, T. Mary Foster, and William Temple. "Transfer of stimulus control from a TFT to CRT screen." Behavioural Processes 85.2 (2010): 111-115. Academic Search Complete. EBSCO. Web. 14 Apr. 2011.
This article was about a study done on hens to determine their response rate to stimuli presented on a CRT screen as opposed to a TFT screen. The purpose was to see if the flicker caused by the refresh rate on the CRT screen would cause the hens to react later or with more delay than to the TFT screen presentation. The scientists studied the response rate at multiple decreasing refresh rates and frequencies of CRT screens, and found the hens reaction time was significantly delayed as the rates decreased. This is interesting because humans see a continuous picture on CRT monitors, and I wonder how much of that continuity is derived from the uniqueness of the human brain, as opposed to the brain of a hen. I am really interested in humans not being able to see the phantom flickering on a CRT screen, which other living organisms, as well as technology can easily render.
Relates
I am really interested in the way CRT screens behave when they are captured on video. The flicker and inconsistency in frequency that results in the lines that move down the screen when watching the video, are not visible to the human eyes because the human brain compensates for continuity. This phenomenon, in relation to my work, reveals another life, and set of functioning, of the aging technology that we don't see because of the translation of old tech into the language of new tech. More and more, I am seeing these CRT screens as relics and I am digging up virtual clues in the archaeological study of an aging media. The video captures what the still image leaves behind, but additionally, what the human vision leaves behind.
Annotated Bibliography
Railton, Renee Caron Richards, T. Mary Foster, and William Temple. "Transfer of stimulus control from a TFT to CRT screen." Behavioural Processes 85.2 (2010): 111-115. Academic Search Complete. EBSCO. Web. 14 Apr. 2011.
This article was about a study done on hens to determine their response rate to stimuli presented on a CRT screen as opposed to a TFT screen. The purpose was to see if the flicker caused by the refresh rate on the CRT screen would cause the hens to react later or with more delay than to the TFT screen presentation. The scientists studied the response rate at multiple decreasing refresh rates and frequencies of CRT screens, and found the hens reaction time was significantly delayed as the rates decreased. This is interesting because humans see a continuous picture on CRT monitors, and I wonder how much of that continuity is derived from the uniqueness of the human brain, as opposed to the brain of a hen. I am really interested in humans not being able to see the phantom flickering on a CRT screen, which other living organisms, as well as technology can easily render.
Relates
I am really interested in the way CRT screens behave when they are captured on video. The flicker and inconsistency in frequency that results in the lines that move down the screen when watching the video, are not visible to the human eyes because the human brain compensates for continuity. This phenomenon, in relation to my work, reveals another life, and set of functioning, of the aging technology that we don't see because of the translation of old tech into the language of new tech. More and more, I am seeing these CRT screens as relics and I am digging up virtual clues in the archaeological study of an aging media. The video captures what the still image leaves behind, but additionally, what the human vision leaves behind.
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