Register Guidelines E-Books Search Today's Posts Mark Forums Read

Go Back   MobileRead Forums > E-Book Readers > Alternative Devices

Notices

Reply
 
Thread Tools Search this Thread
Old 03-03-2019, 05:02 AM   #1
mdp
Wizard
mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.
 
Posts: 1,281
Karma: 4689677
Join Date: Jul 2013
Device: none
Augmented Reality - Epson Moverio BT-300

I have spent three days using my first Augmented Reality device, the Epson Moverio BT-300 "Smart Glasses", (intended) as a mobile reading device.
In short, my judgement of the experience was: very, very rewarding, with some limitations and issues, and above expectations in most areas.

The device is an Android 5.x handheld, cable-connected to a thin and light "ear-nose mounted display" (spectacles) featuring two transparent Si-OLED, 1280x720 displays. Controls are on the handheld: arrows-touchpad (electrostatic d-pad), "Back-Home-History", pointer-trackpad and side buttons; I am not sure if further controls embedded in earphones could be used.

The colour of "black" will be interpreted as "transparent". Hence, the obtained visual effect is to have a 16:9 shaped virtual page of white (apart from formatting variations), well defined (but not always crisp) characters on a transparent background. It is like having, for example a 6 or 7 meters wide (~300'' diagonal) virtual screen at 10 meters distance (very rough calculations).
It is probably already the case to state: if you are using "black on white" on a backlit device (LCD, OLED etc.), you are very probably "doing it wrong" (if reflections get in the way, the screen was supposed to be matte/d and you have done it wrong). In the case of AR, this is especially true: you can of course have a "transparent on white" rendering, which in many cases will be the software default, instead of the correct "white on transparent", but that would be akin to having a panel stuck in front of you mounted on your head with a pole... It would cover the environment, including all the things your brain demands to see when around - that is not what you want. All decent software offers "inverted colours" mode. You will see the scenery, and the screen content, with different focus at change of eye focus.

Pleasantly, the bet is won about the good effect of actually carrying a readable screen "on your nose" as you move around: the optimal environment for such reading is to walk outdoors - which was the intended use. More clearly and explicitly, the purpose was to protract intellectual exercise while living healthier places, postures and actions. The goal was met with unexpected excellence. In fact, it seems that psycho-perceptual properties are key in the well-functioning on the system - as on the contrary the device would perform very poorly if remaining static in a dark room; the good staticity of the screen with respect to the eyes and the variable background are very well and naturally, effortlessly, interpreted by the brain. This seems to compensate the still imperfect technology: an "analytical scrutiny", in static posture in a dark room, shows that the characters are mostly crisp but with blurry areas. The readibility becomes much better if the eyes are set to project to a distant point. Other perceptual postures can vary the visual quality - for example, I am not sure that the blurry areas are fixed in space, and they may depend on "eye calibration and preparation" (for lack of better terms. With "preparation" I mean at least: after a few hours at a standard LCD computer monitor I wore the glasses and just everything was very blurry). During use, if at some moment you want to read e.g. small details like the time in a system or reader application statusbar, they may initially seem small faint small and unreadable, and soon become readable by better orienting your head. I used my natural (not 20/20) eyesight and have not tried wearing prescription glasses.
As written above, the scenery is always available, and so is the AR content, already at a change of eye focus.

I tested the system with Kingsoft Office and with Ivan (Foobnix) Ivanenko's Librera, and also with software of mine based on the Android WebView, and with both free format documents (.doc, .html) and fixed format ones (.pdf), with blissful results.
Given the special (AR hardware) case, I found it very comfortable to read at a 12-lines-per-screen zoom, but - as forced for example by PDF formatting - also at 20-lines-per-screen zoom the text was fully readable, though really not as comfortable. Note that, since we are speaking of "lines", the 16:9 proportion is "quite short"; I would have loved a more square display, such as 1280x1280, and actually all the space would be there to exploit it. With PDF, the "embolden" function in Librera is quite useful (with reference for example to the Sans-serif font used by O'Reilly, which tends to be quite thin). Both Kingsoft and Librera have full-screen functions; incidentally, some Kingsoft Office version may have a bad "white on black" implementation (washed out, "grey on grey") - there is an Android option (I have not tested it) to invert the colours at display level, in case the specific software application is imperfect.

You can normally scroll and change page with the arrows of the electrostatic d-pad, on the handheld which you can keep in your pocket. Of course, you could also have all Turing machines and shed enthusiasts offer: vocal controls through a peribuccal mike, BlueTooth tricks... I would love a smart glove to write (Jeff Hawking's "Palm") Graffiti gestures in the air - that would pleasantly solve the problem of typing. But I guess that also "speech-to-text" dictation is possible (and possibly more dignified).
EDIT: mentioning a "smart glove", or "air mouse", I forgot that this Moverio system already comprises the hardware: if the handheld part contains gyroscope, accelerometer etc. (unless they are only in the glasses, it could in theory be used as an air mouse - you could wave the handheld part in the air to move the mouse cursor. At the moment I cannot find a way (an option, an app) to make this work.

The battery, 3000 mAh, lasts for 5 hours. I am not sure this can be improved, outside of severe system hacking (but for the basic Airplane mode and GPS Off). GSam Battery Monitor seems to indicate that the display has a heavy impact (those small screens?), but I have not tried lowering the brightness, which I keep at around 80%, with the "mild sunglasses" plugin mounted; Epson (very high apparent manufacturing quality and provided material by the way) also bundled a "darker sunglasses" plugin which I have not yet tried.
But I could note that as I carry around a 10'000 mAh battery the hours could be increased to the full useful day, and that I am content with 5 hours per day as a reasonable amount for this kind of reading practice.

Technical specifications for the device are also found at https://tech.moverio.epson.com/en/bt-300/

Last edited by mdp; 03-07-2019 at 05:35 AM.
mdp is offline   Reply With Quote
Old 03-06-2019, 07:26 AM   #2
mdp
Wizard
mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.
 
Posts: 1,281
Karma: 4689677
Join Date: Jul 2013
Device: none
Extending the concept of reading to other related intellectual exercise, today I watched a University lesson on the device. Very rewarding. The impact increase on the battery was not much.

I also used other learning software, and again very pleasantly and effectively, but it was custom - using the dpad and having the right colors displayed is an asset.
mdp is offline   Reply With Quote
Old 03-06-2019, 01:34 PM   #3
mdp
Wizard
mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.
 
Posts: 1,281
Karma: 4689677
Join Date: Jul 2013
Device: none
Here are (imprecise and suffering from space constraints) reconstructions of the effect.
Beware that the zoom in the browser may blur the images. Load the attached in case.



Attached Thumbnails
Click image for larger version

Name:	epson_moverio_reconstruction_b1.jpg
Views:	67
Size:	231.6 KB
ID:	170048   Click image for larger version

Name:	epson_moverio_reconstruction_b2.jpg
Views:	65
Size:	234.3 KB
ID:	170049  

Last edited by mdp; 03-06-2019 at 02:10 PM.
mdp is offline   Reply With Quote
Old 03-13-2019, 05:11 PM   #4
mdp
Wizard
mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.
 
Posts: 1,281
Karma: 4689677
Join Date: Jul 2013
Device: none
In practice, with this kind of system and using some text rendering software, you may missed thicker fonts - they are easier on the eyes as the white text has to contrast against the scenery.

So I produced a thick version of the DejaVu, available here.

Last edited by mdp; 03-13-2019 at 05:13 PM.
mdp is offline   Reply With Quote
Old 03-14-2019, 06:43 PM   #5
mdp
Wizard
mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.
 
Posts: 1,281
Karma: 4689677
Join Date: Jul 2013
Device: none
One note now especially about the parallel topic of video, but important in the context of "OLED outdoors".
The video experience, having watched a few hours of university lessons and interviews, seems to be close to excellent. And all done in the open sunlight. When done in the shade, e.g. in the car, it was like enjoying a "big screen" projected anywhere a comfortable position and an adequate background may match.

So I write this to stress a fleeting thought which may be unduly overlooked. OLED is typically terrible when getting even close to natural light (and they marketed it as "infinite contrast" - in some interpretation of the terms that make no sense in the real world).
So how come this implementation works so well?
Simply, with the use of the sun lenses plugins. Reducing with a simple trick the light that would wash out the display. It suggests the parallel of being able to dim the light around you while holding a palm-oriented OLED-based mobile device, enclosing you in a temporary bell to reduce excessive sunlight... Somehow, there is genius in it.

If a technology was implemented, to match the available one of setting the display brightness, to have adjustable intensity of the sun lenses, from transparent to obscuring with a few degrees in between, electronically selectable...
mdp is offline   Reply With Quote
Old 03-17-2019, 02:51 PM   #6
jbiggley
Junior Member
jbiggley began at the beginning.
 
Posts: 1
Karma: 10
Join Date: Mar 2019
Device: none
@mdp After spending the afternoon googling, I'm intrigued and delighted with your review of the Epson BT-300. The idea of an pseudo-AR reading experience is an exciting possibility. Honestly, I am surprised that an optical-mounted reader hasn't been a larger focus by hardware developers, especially as smart phones have dealt a fairly devastating blow to the ereader market.

Aside from this sub, where can I read more about this burgeoning technology?
jbiggley is offline   Reply With Quote
Old 03-17-2019, 06:06 PM   #7
mdp
Wizard
mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.
 
Posts: 1,281
Karma: 4689677
Join Date: Jul 2013
Device: none
Quote:
Originally Posted by jbiggley View Post
pseudo-AR reading experience is an exciting possibility
I have used it for probably over 50 hrs in the past two weeks, between text, video and interactive material, and happily: in my case it is a fulfilling reality.
mdp is offline   Reply With Quote
Reply

Tags
android, augmented reality, epson moverio

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Light problems with Epson V370 nozonyan Workshop 5 11-25-2017 05:02 AM
Ingress - augmented reality game by google wyndslash Android Devices 2 12-09-2012 07:22 PM
Epson Broadsheet Product Brief wallcraft News 1 02-26-2009 08:43 PM
Next E Ink e-reader from Epson? (speculation) TadW News 4 04-14-2007 03:25 PM


All times are GMT -4. The time now is 02:06 AM.


MobileRead.com is a privately owned, operated and funded community.