| Author | Message | ||
     VE Rating: N/A |
Hi, all visitors of this good site ! It is a tendency now to make practically all monitors (especially high-quality ones) with automatic off function in case of detecting nonstandard graphic mode. Over/under mode is exactly such nonstandard mode. I tested (at 60 Hz initial frame rate) simultaneously several tens of monitors (parallelly connected) with one and the same o/u controller in a shop - only half quantity of them begin to work (although practically all of them allow 120 Hz frame rate at standard graphic modes). Have anyone another opinion ? VE | ||
| Ged Rating: N/A |
I've not heard of this problem before, but it saddens me to hear about it. I always convert my interlaced 3D videos to Over/Under for PC viewing. To make things worse the trend in TV/Video is to progressive scan. It's seen as higher quality and more "film" like. But it's useless for devices such as the Nu-View which relies on interlace scan. So once the last interlaced camcorder has run off the production line. The only way in future to capture 3D video will be with 2 cameras or an image splitting device. Ged | ||
| Marvio Rating: N/A |
Ged, Though by 2006 every TV station will have to broadcast digital signal, and indeed to see that signal you will have to have a "box", if you don't have a diital TV. Even the brand new TV's, that are digital and progressive scan (don't confuse the two), have the capabilty to show interlaced images, mainly to be compliant with DVD's standards, although there are progressive scan DVD players too. At any rate, this is analogus to the X86 code base, even though the P4 is the first true non X86 processor, at least to the wider public, it has to run X86 code, otherwise it wouldn't work!  So, I don't see the interlaced format dying anytime soon, just take a look at VHS for God sake! Even with the DVD being as popular as ever you still find Tons of VHS decks and tapes! So enjoy my friend, by the time interlacing really dies off, we'll hopefully have something much better to play with, in the stereo area, anyway... | ||
| ged Rating: N/A |
Marvio, Thanks for the words of optimism!! The need for backwards compatability had slipped my mind. Ged PS If anyone is interested in 3D video there's a great diuscussion group at http://groups.yahoo.com/group/3dtv/ Where members can "Discuss 3d video and webcasting, and enjoy or share amateur 3d videos here! Teach us or learn about 3d video techniques, animation, compression for web casting. Ask questions if you want to learn, give answers when you can teach. " | ||
| VE Rating: N/A |
Ged, you are quite right about absence of problem to view INITIAL o/u image on screen of any monitor, when sync inserter (o/u) controller (disposed between VGA ports of computer and monitor) is switched OFF, but modern monitors (in case of having detection of nonstandard graphic modes) refuse to work if this sync inserter is switched ON (i.e. if monitor receives nonstandard "page-flipping" graphic mode, transformed from initial o/u image). This transformed mode is a nonstandard because of having only frame rate increased (in twice), but line scan rate is the same as in initial image. | ||
| oru Rating: N/A |
VE, I personally think that some monitor makers decided to ban O/U mode. Maybe several reasons. The main reason should be ... If a user set the refresh rate at 100Hz at 640x480 for pageflip mode for PC games... then, by mistake, forgot to lower it to 50 or 60Hz to see O/U movie or images... He has to encounter with the "Out of Range black signal". Anyhow, somebody may try to write a program to make those monitors work. Can you tell us the monitor models that refused O/U mode? | ||
| VE Rating: N/A |
ORU, Thank you for reply, I will gather information about monitor models refusing o/u mode, and inform you. If somebody write required program he will save o/u format. VE | ||
| VE Rating: N/A |
OU MODE IS STILL ALIVE ! My message about refusing (relatively o/u mode) monitors is based on negative experiments that I mage about half year ago. I mistakenly extrapolated this results up to now, but, fortunately, it is a false alarm - now I've made new experiment with existing monitors and got unexpected excellent testing results - all of them work succesfully in o/u mode (see list below). I didn't find monitor with negative testing result in this new experiment. The list of tested monitors: Samsung 17" - 750p, 753S, 753DFX, 755DFX, 757NF, 15" - 56E, 550b, 551S. LG 21" - 221U, 19" - 915FT+, 17" - F700B, 15" - 57T5. NEC 19" - MS95F, Multisync EE750+, V521. Mitsubishi 17" - DiamondPro 740SB. Sony 21" - Multiscan E500, 530, 17" - HMDA200, A230, E230, GPD-G220. Hitachi 17" - CM621F. Iiyama 19-17" - HM704UTc, isionMasterPro410, 413. ViewSonic 21" - G810, 19" - G90F, E90, 17" - PF775, E70f. Philips 17" - 107X23. Green Wood- CM57OT, FD797T. Hansol - 710D. CTX - 1769SE/VL700. Digital Vision - 19" - E19996FS, 17" - E1770SF, Pro1797F, 15" - Pro1570F. Nevertheless I ask to inform us if anyone meets modern monitors refusing o/u mode. VE. |
