| Author | Message | ||
     Peter Wimmer Rating: N/A |
I'm thinking about creating full color versions of Shrek 3D and Spy Kids (they are only available as anaglyph DVDs, as far as I know). There are two solutions to do this. 1) Find two different editions of the movie, where the first on contains the left view as 2D version and the second one the right view. All of you who own one of these two movies, could you check whether left or right view is used as 2D version and tell me? I own the PAL edition of both movies which use the left view for 2D. 2) Use the left and anaglyph image to restore the right image. To evaluate if this is possible and what quality can be achieved, I've written an application called "DeAnaglyph" to do this. More information can be found here: http://mitglied.lycos.de/stereo3d/deanaglyph.htm | ||
| Puppet Kite Kid Rating: N/A |
I am very busy at the moment and can't try your software, but how did you accomplish this? Did you "map the red to luminance"? I have played with this idea, but only for experimenting with recreating the anaglyph as an "optimized" version, so my right perspective remained cyan and I recreated the new left perspective from the 2D versions, which are the left view in my NTSC videos. Also, as I mentioned in the Yahoo 3DTV group: There were a few problems, though... there were a couple of scenes (I think in Shrek) with size (resolution) differences between the anaglyph and the 2D version, and a couple of scenes (I think in Spy Kids) of the 2D version that used the the right view instead of the left view. Sorry, I didn't record the details, but I just noticed these problems during a quick study of the two movies. PKK | ||
| Peter Wimmer Rating: N/A |
DeAnaglyph implements an adaptive pattern matching algorithmus in the spatial domain using variable block sizes. To say it in simple words, the algorithm takes blocks of the anaglyph's blue and green channel and tries to locate them in the left image. The red value of the found block is copied to the resulting image, green and blue values are taken directly from the anaglyph image. | ||
| Pedro Rating: N/A |
I'll check the NTSC version of Shrek3D and find out which eye it is. I have had this thought before about 3D movies released on DVD (like House of wax, Hondo etc.) in the hope that different transfers may happen to come from the left or right versions, allowing a full 3D version to be reconstructed. Maybe we should post a full list of old 3D movies released on DVD and get people from different regions to check which eye their's is. | ||
| M.H. Rating: N/A |
Jut a notice to Shrect3D ... There are de-facto 3 views on the scene on the DVD ... 1) From cental camera(the 2D track) 2) From left camera (R chanel on the anaglyph) 3) From right camera (GB chanel on the anaglyph) I had reconstructed relatively good full color stereo version by putting in lefte eye the full color version from central camera and by putting to right eye the GB chanel from right camera + R adjuted to brigtnes of the GB ... It worsks, but the R chanel of the right track is not perfect ... Peter - any chance your algorithm can reconstruct the full right RGB track ? Maybe the full colored central track could be helpful ... | ||
| M.H. Rating: N/A |
I had tested the Shreck resonstruction ... It works ... But the saved image at 720x576 have aprox. 10 pixel white border ... Your Spice Kid example at the same resolution does not have such a problem ... What is wrong ? Any plane to relesa a version working in some Multi image processing mode ? I am sure the both Shreck3D ans SpiceKid moves are worth the half yer neccesary to recomputation :-) | ||
| Puppet Kite Kid Rating: N/A |
I'm trying to remember exactly how I did this... it's been quite a while ago. I did it with After Effects and got a pair that looked almost perfect. I removed the red from both the anaglyph and the right perspective, which I think is the 2D version in both movies, then added back an overall "tint" of red equally to both perspectives... again, at least in After Effects, this technique worked much better than expected, for whatever reason. I have partially documented the results of this on the web of the Spy Kids conversion by showing the reconstruction of the anaglyph, using my anaglyph method, but I did not upload or include the reconstructed discrete stereo pairs that I created that anaglyph from, and I didn't include any specific details on how to do it, either. http://www.puppetkites.net/comanamoviedemos/SK3D.htm At least you can see a huge improvement in the anaglyph quality (almost no retinal rivalry), which is a good indication that I used a decent reconstructed stereo pair as the source :-) PKK | ||
| Puppet Kite Kid Rating: N/A |
Wow, I just now finally tried Peter's software and it works perfectly, but takes a long time to render one frame, as he mentioned. Even though I can "get some of the red back" with After Effects, I can't figure out a way to actually map the red back to it's proper spot... it's more of an overall red cast, not a specific mapping. Obviously, Peter's tool uses some very specific algorithms :-) PKK | ||
| Peter Wimmer Rating: N/A |
Hello, The white border is a limitation of the current implemenation. I just was too lazy to implement the details with handling the border, it should be no problem to calculate the border, too. When I have more time (which can take quite a while), I'll also improve speed and implement it as Avisynth filter. I still hope that somebody will release a shutterglasses version of Shrek and Spy Kids to that it's not necessary to work DeAnaglyph... | ||
| GregK Rating: N/A |
...or in the case of "Spy Kids 3-D": just wait for the upcoming Sensio 3-D DVD version due in February. | ||
| Anonymous Rating: N/A |
Spy Kid's 3d would be good Where can you buy Sensio movies online? |
