Re: Nokia N800 or N770 and very bad eyesight.
This thread just made me realize, the N800/770 could be ideal devices for stereoscopic viewing. Same opinion here, but with a different approach than the one you propose, which requires dangerous efforts to eyes and mind. The 770 and n800, with their high screen resolution, can easily be used as *amazing* stereoscopic photo and video displays. Sure, not many movies are made in 3D, but I think it's a matter of time. And besides videos and photos, there are many other applications that could benefit from depth perception. I advanced a suggestion to GP2X staff some time ago, and I've already done a bit of experimentation on the 770 on this subject. My prototype results are very encouraging. What we need is a sort of screen cover perfectly fitting the 770 display with its dimensions, so to avoid every shift on the display. This kind-of-screen-cover has to be a lenticular (you know, those you can find with potato chips, used to bring 2D animations, zoom or 3D effects). The 770 should be used in portrait mode (and the lenticular must of course have the vertical stripes parallel to the symmetry axis of our body), because the LCD is built with r, g, b elements oriented in such a way that, using it in landscape mode, would result in color artifacts. The 3D content should be rendered with the interlace mode, that is odd lines for one eye and even lines for the other one: the lenticular bends the rays so that one eye can see just odd lines, and the other can see just even ones. This brings a glasses-free true-colour nice-resolution deep image. For moving images (videos) the perceived effect is even more impressive. Because of the fact that the lenticular requires high quality and pixel-perfect construction, it's obviuous we can't build them with our knife ;) Only big companies can afford buying thousands of pieces to lenticular manufacturers, giving their own specifications. Apart from this little problem, if someone could provide and sell these lenticulars, Nokia or 3rd parties, they sure would be rather cheap (it's just a little transparent plastic rectangle, after all), no more than 10$ (and I think I'm exagerating), but they could really add a new dimension to the device (he he :) Of course this approach requires just one person viewing at the screen, and a specific distance of the tablet from the eyes, which are pretty simple requirements to follow for a portable device user (the lenticular can be done in such a way that the distance is reasonable). Oh, a quick hack to experiment without a lenticular, which I have done: print black vertical lines on a transparent paper, put a transparent plastic rectangle on the tablet display, and put the printed paper on it. IT REQUIRES A LOT OF TRIAL AND ERROR EXPERIMENTATION to find the correct size and distances for the lines to print, so I really can't suggest doing this, but when you get it and try to view a well done 3D picture remapped with the interlace method described above, you can't avoid obtaining a lot of WOW from everyone staring at it. -- Antonio ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
RE: Nokia N800 or N770 and very bad eyesight.
hey, Antonio, that's a really interesting idea! I'd love to see this put into use... Randall (Randy) Arnold Quality Feedback Analyst Nokia-CMO/Dallas -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of ext Antonio Orlando Sent: Tuesday, May 08, 2007 9:59 AM To: Maemo users Subject: Re: Nokia N800 or N770 and very bad eyesight. This thread just made me realize, the N800/770 could be ideal devices for stereoscopic viewing. Same opinion here, but with a different approach than the one you propose, which requires dangerous efforts to eyes and mind. The 770 and n800, with their high screen resolution, can easily be used as *amazing* stereoscopic photo and video displays. Sure, not many movies are made in 3D, but I think it's a matter of time. And besides videos and photos, there are many other applications that could benefit from depth perception. I advanced a suggestion to GP2X staff some time ago, and I've already done a bit of experimentation on the 770 on this subject. My prototype results are very encouraging. What we need is a sort of screen cover perfectly fitting the 770 display with its dimensions, so to avoid every shift on the display. This kind-of-screen-cover has to be a lenticular (you know, those you can find with potato chips, used to bring 2D animations, zoom or 3D effects). The 770 should be used in portrait mode (and the lenticular must of course have the vertical stripes parallel to the symmetry axis of our body), because the LCD is built with r, g, b elements oriented in such a way that, using it in landscape mode, would result in color artifacts. The 3D content should be rendered with the interlace mode, that is odd lines for one eye and even lines for the other one: the lenticular bends the rays so that one eye can see just odd lines, and the other can see just even ones. This brings a glasses-free true-colour nice-resolution deep image. For moving images (videos) the perceived effect is even more impressive. Because of the fact that the lenticular requires high quality and pixel-perfect construction, it's obviuous we can't build them with our knife ;) Only big companies can afford buying thousands of pieces to lenticular manufacturers, giving their own specifications. Apart from this little problem, if someone could provide and sell these lenticulars, Nokia or 3rd parties, they sure would be rather cheap (it's just a little transparent plastic rectangle, after all), no more than 10$ (and I think I'm exagerating), but they could really add a new dimension to the device (he he :) Of course this approach requires just one person viewing at the screen, and a specific distance of the tablet from the eyes, which are pretty simple requirements to follow for a portable device user (the lenticular can be done in such a way that the distance is reasonable). Oh, a quick hack to experiment without a lenticular, which I have done: print black vertical lines on a transparent paper, put a transparent plastic rectangle on the tablet display, and put the printed paper on it. IT REQUIRES A LOT OF TRIAL AND ERROR EXPERIMENTATION to find the correct size and distances for the lines to print, so I really can't suggest doing this, but when you get it and try to view a well done 3D picture remapped with the interlace method described above, you can't avoid obtaining a lot of WOW from everyone staring at it. -- Antonio ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
Re: Nokia N800 or N770 and very bad eyesight.
Me too. Whisper it to someone at Nokia who has the ears to hear and the power to start some marketing briefing study ;) Maybe GP2x staff is already accounting that for their eventual next game console, I pointed out to them that this has never been done for portable devices (to my - and their - knowledge) but it would be sweet for all those 3D games, and affordable too (3D games on portable consoles are the perfect fit for this idea, so I've proposed it to GP2X staff, which has been so kind to interact with me, but maybe also Nintendo and Sony should consider it for DS and PSP, or their successors). -- Antonio hey, Antonio, that's a really interesting idea! I'd love to see this put into use... Randall (Randy) Arnold Quality Feedback Analyst Nokia-CMO/Dallas ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
Re: Nokia N800 or N770 and very bad eyesight.
This thread just made me realize, the N800/770 could be ideal devices for stereoscopic viewing. The high resolution and wide aspect ratio let you fit a lot of pixels on either side. Google for 'stereoscopic' and you can find 3-D photos. Visit them in full-screen mode (turn off the toolbar), take something like an index card and stand it up on the screen, bring your nose down to the card and you can see pretty decent depth. Here's an image: http://rozzo.tripod.com/images/3d-la-sciara-filicudi.jpg I suspect someone with more time on their hands could build a holder and maybe some lenses to do it properly... Allan On May 7, 2007, at 17:34, Michael Wiktowy wrote: On 5/7/07, Michael Wiktowy [EMAIL PROTECTED] wrote: hendrik: Maybe a harmonica holder with an extra little bend in the arms to get the right angle might work out for you: ... or clamp the stand of the N800 in there ... would probably work out with no modifications necessary and be adjustable to suit different ideal focal lengths. /Mike ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users -- Allan Doyle http://museum.mit.edu/mwow +1.781.433.2695 ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
RE: Nokia N800 or N770 and very bad eyesight.
Hi, The keybouard would then be on a table, Yes, same as with a regular computer. and presumably the N800 would too, Well, not necessarely. Regular computers have screens on tables because it makes sense but also because they are heavy and tied to cables. This is not the case of the tablets. You might find alternatives to keep the screen at your desired distance, like the wind instrument musicians having the partiture in front of their eyes always. It would require some DIY nowadays, but perhaps you have hit a use cases where tablets are more competitive than regular screens? In fact music stands are already used to support computer monitors: http://therawfeed.com/pix/electronic_music_stand.jpg. A smaller stand for a smaller device would be an option, you might still search in the music field i.e. http://www.zzounds.com/item--QLKMS303 although perhaps you would find more and cheaper alternatives customizig camera tripods. The N800 would accept easier simple solutions since it has already a stand usable i any horizontal surface. Please share your progress if you follow these or another paths. It is good to know about use cases where tablets are more suitable than regulat computers. And more importantly for the context of this list, share any specific problems you find at a maemo/software level for users with eyesight problems. Thanks! Quim ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
