Hack a Day » photo

Commercial webcam multi-touch coming soon

Mike Szczys — Thu, 27 May 2010 19:31:19 +0000

It looks like Toshiba has a webcam-based multi-touch display on the way. The video shows an iPod-esque photos album interface where the user stands in front of the display and manipulates it with both hands. The difference between this and some of the other multi-touch displays we’ve seen is that there is no touching necessary (goodbye fingerprints!). The user’s image is superimposed on the screen in a way that reminds us of the original Playstation Eye. Obviously this is much more refined, making us wonder if it’s the better camera, better processing, or both.

[Thanks Risingsun]

Filed under: multitouch hacks

Daily photo aging project on steroids

Caleb Kraft — Fri, 19 Sep 2008 18:21:09 +0000

We’ve seen those videos where people take a picture of themselves every day. [Dan Hanna] took it to a much further level. He built a camera rig and took pictures of himself for 17 years. That is not a typo, 17 years. The rig consists of a ring that holds two cameras opposing each other. He centers his head facing a target that he increments around the ring every day before taking a picture. The ring can be split into 4 sections for portability. Check out the low resolution video after the break.

[via waxy]

Posted in classic hacks, news

Laser insect photography rig

Will O'Brien — Mon, 16 Jun 2008 15:30:00 +0000

[Marc] sent in this awesome insect photography rig. The camera is manually pre-focused and set for a 30 second exposure at ISO100. The aluminum cylinder in front of the lens is an external shutter mounted with a custom turned lens adapter. It’s used because the built in shutter is too slow for insect capture. The camera/shutter is triggered by a pair of lasers with photo detectors. When both beams are broken, the insect should be in front of the lens. A Garmin GPS provides position information that’s tagged on the image by the Nikon D200. A large photo of the rig is here, while a more detailed writeup on building it is here.

Update: It looks like we covered a previous version of this rig, but the old links are down and we didn’t have a shot of the setup. Oh, and I forgot to mention [Marc] new control box for running this rig.

Camera lightning capture

Eliot — Thu, 12 Jun 2008 05:30:00 +0000

The people at [Hobby Robotics] decided to build a trigger circuit for lightning photography. There are more complex ways to do this, but they just used a photo transistor and an Arduino. The Arduino watches the photo transistor’s value and compares it to the previously captured one. If the difference is above a certain threshold, it means a rapid change in the amount of light has occurred, which triggers the shutter. An earlier post covered how to directly control the Canon 30d using an Arduino. All of this works because the shutter lag and code execution together are less than lighting’s 100ms duration.

Happy Halloween Extra

Will O'Brien — Thu, 01 Nov 2007 04:37:00 +0000

Happy Halloween! I’m in the mood for an extra, and I’ve got some stuff that’s been turning to zombies from the tipline.
Pictured above is a nice simple LED pumpkin sent in by [John]- perfect for the hacker with less than stellar art skills.
Let’s not forget [mastershake]s Hack-A-Day pumpkin from last year. Where’s the THAD pumpkin you promised? [Wolfgang] sent in these mini pumpkin bots – they look like toys, but they’re made from XBox parts and radio control cars.
Last year Max sent in his talking Halloween basket. (I always wanted to strap that voice module to a co-workers chair…)
[Brandon] built a budget (~$150) guitar hero controller out of a Gibson Epoch guitar from target.
This scanner cam has been around for a while, but I admire how he keeps fine tuning and tweaking the design. Thanks to [Loopymind] for passing it along.
I keep getting emails telling me that Google Earth has a flight simulator. Yes. We all know about it.