 |
|
|
|
|
|
| |
| |
|
|
|
|
| |
| |
|
|
> I'm not entirely convinced yet that this isn't a hoax, though -
> basically what they're suggesting is that through their techniques,
> you could reconstruct a hidden surface using the reflections off of
> a non-reflective surface, but I'm not totally convinced that that's
> possible given the dispersal of light.
That demo is *cool*.
I don't see why it isn't possible. The projector is lighting one tiny
segment of the card at a time, if it hits a red bit, the book is going to be
lit with a red hue, very easy to pick up by the camera. Once it's scanned
the whole card, it would be easy to build up the picture.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Jim Henderson <nos### [at] nospam com> wrote:
> The page is wrong - it's 61 MB in size - and the demonstration is quite
> amazing. There might be some techniques in there that could be of use
> here...
Reloading the page helped. It changed to a link to a torrent.
Now, I have to admit I'm at a loss about how to play that .mp4 file.
Winamp opens it ok, but plays the audio only, no video. Windows media
player (version 9 in Windows XP) refuses to play it altogether ("Windows
Media Player cannot play the file."). The Core Media Player does not
recognize the format at all. The Video Inspector utility (which can be
used to determine if codecs needed by multimedia files are installed in
the system or not) does not recognize the format either.
I have run out of ideas.
--
- Warp
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Warp" <war### [at] tagpovrayorg> wrote in message
news:42812631@news.povray.org
> Jim Henderson <nos### [at] nospamcom> wrote:
>> The page is wrong - it's 61 MB in size - and the demonstration is
>> quite amazing. There might be some techniques in there that could
>> be of use here...
>
> Reloading the page helped. It changed to a link to a torrent.
>
> Now, I have to admit I'm at a loss about how to play that .mp4
> file. Winamp opens it ok, but plays the audio only, no video.
> Windows media player (version 9 in Windows XP) refuses to play it
> altogether ("Windows Media Player cannot play the file."). The Core
> Media Player does not recognize the format at all. The Video
> Inspector utility (which can be used to determine if codecs needed
> by multimedia files are installed in the system or not) does not
> recognize the format either. I have run out of ideas.
QuickTime played it for me. But Winamp did just audio, WMP seemed to freeze
the image after a few seconds, and DivX player did video only!
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Warp wrote:
> Now, I have to admit I'm at a loss about how to play that .mp4 file.
It is a regular MPEG-4 file,not even MPEG-4 Part 4 (aka H.264). Probably
anything that can play a modern Divx file can play it.
Thorsten
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Thorsten Froehlich <tho### [at] trfde> wrote:
> It is a regular MPEG-4 file,not even MPEG-4 Part 4 (aka H.264).
I thought H.264 was part 10.
> Probably
> anything that can play a modern Divx file can play it.
How? I have tried everything.
There's one good thing about the AVI format: The player does not need
to even know what is inside it. It just asks the system. If that mp4
file was embedded inside an AVI (instead of being on its own) I'm pretty
certain any of the players here would play it just fine.
However, if that mp4 is a format all on its own (like eg. mpeg1 is),
then the player has to understand it, and every player which wants to
support it has to implement the support explicitly.
(Note that I said "one". There are very bad things about the AVI
format. No need to remind me of that. :P )
--
- Warp
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Wed, 11 May 2005 02:02:08 +0200, Warp <war### [at] tagpovrayorg> wrote:
> Thorsten Froehlich <tho### [at] trfde> wrote:
>> It is a regular MPEG-4 file,not even MPEG-4 Part 4 (aka H.264).
>
> I thought H.264 was part 10.
>
>> Probably
>> anything that can play a modern Divx file can play it.
>
> How? I have tried everything.
VLC plays it just fine for me. No other player seems to manage it.
--
FE
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Warp wrote:
> Thorsten Froehlich <tho### [at] trfde> wrote:
>
>>It is a regular MPEG-4 file,not even MPEG-4 Part 4 (aka H.264).
>
> I thought H.264 was part 10.
Of course, part 4 is the regular encoding. I should read again before I post...
Thorsten
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Jellby wrote:
> Many of you have probably seen this at slashdot,
>
> Here is a physical technique to interchange the roles of a camera and a
> light-source which is reminds me of how POV-Ray calculates the rays.
>
> See the (maybe slashdotted) page:
> http://graphics.stanford.edu/papers/dual_photography/
>
> download the 60MB movie and marvel at the card-trick at the end.
The movie is available at http://www.povray.org/temp/DualPhotography.mp4
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Jim Henderson wrote:
> what they're suggesting is that through their techniques, you could
> reconstruct a hidden surface using the reflections off of a non-reflective
> surface, but I'm not totally convinced that that's possible given the
> dispersal of light.
that's what they do in the card trick, though I understand that the general
technique relates to reconstructing the view of a subject lit from the place
that the camera used to be, and viewed from where the light was, with no
other light. In that case (in theory), the hidden parts of the object (the
ones not visible in the original image I mean), while technically visible
from the new camera location, would however be in shadow and thus not
revealing any detail not originally visible from the camera's point of view.
-- Chris
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Warp wrote:
> Now, I have to admit I'm at a loss about how to play that .mp4 file.
> Winamp opens it ok, but plays the audio only, no video. Windows media
> player (version 9 in Windows XP) refuses to play it altogether ("Windows
> Media Player cannot play the file."). The Core Media Player does not
> recognize the format at all. The Video Inspector utility (which can be
> used to determine if codecs needed by multimedia files are installed in
> the system or not) does not recognize the format either.
quicktime worked for me.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
