HSBS/HTAB, the TVs job is to convert a single 1920x1080p frame from 2 pictures side by side into a MIXED 1920x1080p frame of both pictures, with the correct algorithm used on each side for your compatible glasses.where do you seem to think this additional conversion layer is happening?
That, is a conversion. You start with one thing, the TV changes it drastically, and THEN displays it. Turn off this conversion process and you have 2D.
SiliconKid ~
Merely what I said before about people preferring TAB over SBS and most content being delivered in SBS. I myself notice some really weird discomfort with objects moving rapidly close to the screen in SBS that doesn't bother me in TAB. Why? As I said, I have no idea. So that's the single simple reason why it can be advantageous for us passive users who already are dealing with half resolution to gain from a full HD source. We can have the mix converted to what seems to work best for your eyes.WHY would you want to change the format ?
Remember, not everyone's eyes or minds work the same. While you may watch via active glasses forever and never get a headache, they really bother me. Half way through a movie I need a break. I suspect because I have been subjected to fast blinking for so long (using 60-200hz CRT monitors) that I got used to noticing blinking. I can actually 'see' the glasses blink at certain times and that's entirely why I went passive. They don't bother my eyes at all and I can watch for hours.
That's my boat. HSBS/HTAB.The typical situation is that the transport medium can handle HALF SBS/TAB, but not MVC, in which case conversion makes perfect sense.
Not true at all in HTAB/HSBS. You're interpolating resolution in 2 different ways. The same number of pixels is affected either way however the interpolation is horizontal or vertical. As said many, many times, I don't know why I can track an object perfectly across the screen when close and fast in HTAB but in HSBS it appears to flicker and blink, but it does. Perhaps if the object were moving vertically quickly I would have the inverse problem. HTAB would flicker and HSBS would not. I haven't tested that yet. All of my experience is with horizontal. Movies like The Hobbit, Gravity, etc where objects (weapons/spaceships/etc) are spinning extremely fast horizontally. Something is wonky with the way my TV represents it in HSBS, and I presume that simple reason is half the horizontal data is fabricated, and my TV is just doing it poorly.You mentioned something previously about TAB affecting you differently to SBS. That makes NO sense at all, because your TV will NOT display TAB differently to SBS.
Maybe the reason is my TV. While only a month old, the 55" LG 55LB7200 is definitely no flagship TV. Perhaps Samsung or other models would handle the HSBS conversion with much better prediction and clarity.
If you understand how codecs and spatial compression work along with resizing/resampling (bicubic/bilinear/etc) algorithms work then you would know this is not true at all. Nearest neighbor pixel detection is going to work entirely different when you resize data vertically versus horizontally. You're dealing with completely different data in both cases. This is HSBS/HTAB, from a source like my cable company or the animations I create, which is truly HSBS/HTAB, not full HD where you have the luxury of the FULL frame data for each eye.Half-SBS and Half-TAB are the same quality, they both incur the same loss of resolution when packaged, so they will both look IDENTICAL when you view them on the TV.
It's hard to prove this but the best I can do is create a Flash example, although it will clearly not have the same chipset a TV has responsible for resizing. You could extract your own HSBS or HTAB frame from the exact same timestamp in a video and see in a very easy way the pixels would not match. I could output the complete data for the interpolation decision of the upscale for each stretch technique and you could clearly see how much different the nearest neighbor guesses are during upscale.
That I agreed with before. While it's "possible", the quality loss as I explained it wouldn't make it worthwhile. While I explained that it was actually possible with the quality loss, my point was always that if you have BOTH full frames available whether FSBS/FTAB or dual streams with full frames or whatever way you choose to package, at THAT point, it can be desirable, to those of us with HSBS/HTAB passive TVs.There is absolutely no reason whatsoever to EVER convert Half-SBS to Half-TAB or vice versa. None.
