New 3D Camera with 3D screen

27 02 2011

Friday i obtained my Fujifilm Finepix 3D W3 camera. It has dual 10MP lenses, and a real 3D (no glasses) screen, which really works as well as i have been told it would. With every picture it takes it saves one JPG from the left ‘eye’, and a ‘stereo jpeg’ ( .MPO format). Also, it records HD stereo movies, which works just as good (plain two-in-one .avi format).

The problem is, how do i show you my pictures? I can’t YET, but here is one sample YouTube video in 3D from this camera from me:

And here is one picture, if you click on it you will download a 9Mb .MPO picture

Click to download the stereo JPG

The battery lasts around 15 minutes, sadly. It is a NP-50 battery, which has 3.6V. Weirdly enough, NP-50 batterys are commonly 3.7V.. This is weird, but does not matter. The inner circuitery handles that, and plus, while discharging the voltage swings by more than just that 0.1V, so that’s nothing to worry about. I bought two extra battery’s so i have 3.

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Apple’s third iPad: the iPad 3D?

27 02 2011

It seems Apple will release the iPad 3 this winter <via>. Although maybe the time is not yet right for the technology: it would maybe seem like the right step. A 3D screen on the iPad. It also seems they have got granted a patent on a 3D technology that allows multiple people viewing the same screen at the same time <patent grant>.

I was pleasantly surprised by the 3D quality on the 3D screen of my new 3D camera. More about this and many content due tomorrow.





3D-360 Object in Youtube

15 02 2011

3D At home is going fast. Youtube announced it now accepts 3D content from cellphones with 3D camera’s (a few have just been released). The new Youtube 3D viewer is great: you can choose ‘anaglyph’ glasses (red/green, red/blue, etc..) or if you have a real 3D monitor you can just tell youtube what you use, and soon you can watch 3D at home as you saw Avatar.

In the video above, you can choose next to the resolution, the type of 3D viewer you are going to use.

So, how about watching products: we all know the roundshots from objects. The future then is, that we want to see 3D roundshots. Sadly, there is no easy browser-software for this (yet), but we do have the great YouTube implementation. So what you can do, is make a 360 roundshot into a short movie, a 3D movie, that rotates 360′, hence, 3D-360. “Why not just record a rotating object with a 3D video camera?” = because that is just too easy; and eventually we want to use the 3D-360 images to implement in a 3D-360 browserwindow when the time is right (~3 years?).
Let’s put this idea to the test. Project time: 1 hour.

This will be some kind of “How to make a product or object 3D 360 video”.

3D-360 Test Setup

The nice thing about a roundshot is that you change the angle. So we do not need two camera’s; instead we take “x” images, and the frames for the lefteye are then “1 to x-1” and those for the right “2 to x”. Or: in the first 3D image we use f.e. the 10deg angle and 20deg angle pictures, and in the second 3d image we use the 20deg and 30deg image; hence we re-use images, so we do not need 2 camera’s. Though, i had decided 10deg intervals would be OK for this test, i think 2~5deg would have been better, since it takes effort to see the 3D since the 10deg shift is quite big.

What we will do

  1. Take 35 pictures (35x10degs=full circle)
  2. Batch 35 pictures (Photoshop?) to square and without background
  3. Make a movie (.avi) from pictures 1-to-34 for the left eye, and another movie from pictura 2-35 for the right eye.
  4. Merge two movies together in the way youtube wants it.

Batched pictures..

Now I have used Photolapse (freeware & single .exe) to merge the two sequences into video files (.avi).

Make two movies from pictures

Then we import these two video files. We use StereoMovie maker (freeware, single .exe), actually Nasa uses this software for education.

Import two videos

Press Save Stereo (1) and reduce size (youtubes wants this format)

I ended up with these files. Now upload the right to youtube.

Now upload to YouTube, and add the tag “yt3d:enable=true” when uploading.

Then you should see this after uploading.

Now as you see from the image above, we can choose the method of 3D we want to see! Underneath here i have put the three most common 3D options next to eachother. And oh yeah, my video is 1080P, full HD ofcourse =)

When watching you can change the method of 3D you like!

Final Note

Sadly though, the 3D TV’s arent compatible YET with the Youtube3D (or YT3D). Not even all the PC 3D solutions with LCD’s and glasses are YT3D compatible yet, let alone 3D phones! But this is cutting edge: Sony announced that this summer it will incorporate the YT3D viewer in its 3D TV’s. I am convinced 3D is going to get very big, but we are not there yet. Youtube has made a nice step in the good direction!

Questions andsoforth in the comments.





3D Realtime Face Reconstruction with Matlab and Kinect

14 02 2011

This post has been updated and moved to a new dedicated website HERE

I managed to map the texture on the pointgrid aquired from the Kinect 3D image.

This is what my program does:

  1. Gets 3D + live image
  2. Converts 3D coordinates to real-world coordinates
  3. Makes a trigonial mesh
  4. Fills in the entire trigonial mesh with the correct colors (from live image)
  5. Starts from 1

Specs:

  • ~2 seconds per frame (0.5 FPS)
  • Accurate to ~5mm
  • Works from 50cm to at least 700cm
  • 0.3 MP Resolution
  • If not set to realtime (=postprocessing) framerate would be 30FPS

See below this youtube of my face, which consists of around 40.000 datapoints:
This post has been updated and moved to a new dedicated website HERE

And then here follows the code. Looks basic? It was, i spent a total of 2 hours on it.

Read the rest of this entry »





“3D-360” Object Exposition

13 02 2011

First inspire yourself by looking at this image

Imagine a virtual world in your hands

Then, imaging looking at a static object in 3D, on a screen. Then, imagine the object in front of you, and move it by moving your hands through the air as if holding it (see my previous post for this method Sky touch 3D objects).

I tried to explain this graphically in this self-explanatory image, this solution would cost around €700, or, if you already have two projectors, if would cost around €150, or if you already have a 3D camera (as I have) it would cost ~€30, and if you already have polarization filters, it would cost ~€0.. Wait, I have all those things, so I will be physically testing this setup shortly:

3D-360 Virtual object interactive viewer





3D Photographic Exposition

13 02 2011

Lately I was thinking about how one could give an affordable 3D photographic exposition for still images. Obvisouly this is possible by just taking a 3D projector or a 3D ready computer/tv screen, and showing the 3D image with shutterglasses. But that’s more for video, and that solution is too expensive (>€500 per exposed image) and complex for photographic exhibitions. So last night before I fell asleep i solved my problem for about €50 per exposed picture. Also, for this we do not need €100 shutterglasses, but can keep it for easily available €1~€ 3 polarized glasses.

I have tried to explain my idea graphically, which is self explanatory. So you only need a transparant negative of every image, which anyone can print on transparant paper. The offset and skew you introduce by the fact that the projectors are side-by-side you solve by skewing the images fysically on the projector, or calculate it by software, skew them in photoshot, and print afterwards.

3D Photographic Exhibition solution


Practicability

Implementation of this set-up would be either projecting from the back of the projection sheet, with the viewer in front. Otherwise the projectors could be mounted on the ceiling, or otherwise very generally in front of the sheet, next to the viewer. Every viewer should wear low-cost polarized glasses.