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Archive for the 'Video' Category

Time lapse experiments

Thursday, October 7th, 2010

Lately, I’ve done a couple of experiments with time lapse photography.  In the first case, I used Sarah’s camera, put it on a tripod, and set it to take a shot every five seconds. Then, I stitched the frames together in a video. I was shooting the sky and it’s really crazy to see how different it looks this way. As I looked up at the sky it appeared the clouds were barely moving at all. This technique effectively speeds things up quite a lot, and now you can watch the clouds churn, morph, blow across the sky, and dissipate.

I also did an experiment while riding. My helmet cam has an option to take a photo every two seconds, or every five seconds. I set it to two seconds and again, stitched the photos together into a video. I had to use a much lower framerate, though, and the result is a very choppy — but still interesting — video. The example below contains probably 30-40 minutes of riding, condensed into just over 2 1/2 minutes.

I like the results of the first example much more. I hope to do some extended experiments — I had time constraints when doing this one.

Brown County State Park Aynes Loop helmet cam footage

Wednesday, April 21st, 2010

On Saturday, I went mountain biking with Dave. We rode the North Tower and Aynes loops. A short ride, but it was my first trail ride since my foot surgery, and I had a big ride planned for the next day. We ran into some friends of Dave’s out there, and ended up riding part of the ride with them.

Here is part of our ride, this includes part of the long descent on the Aynes loop. I tried to include some fast flowing parts and some of the slower, trickier stuff as well.

My helmet cam struggled with the level of detail a little bit, but overall it looks pretty good. I really like the wide angle lens, as it portrays well how the trail skirts the edges of some ravines.

I took some more footage of the North Tower Loop, but I haven’t had a chance to edit it yet.

More commute footage

Saturday, March 6th, 2010

Here are a couple more commuting videos. In the first, I show the bike lane on Lincoln Street here in Bloomington. This is really a poorly-designed bike lane. Here are some problems:

  • Throughout – Bike lane is situated in the door zone. Riding on the left edge of it helps, but I still don’t feel 100% safe with it. Sometimes I have to ride in the traffic lane to avoid the door zone.
  • 0:22 –  Weird dividers between the bike lane and traffic lane. Not sure if these are really problematic but they seem odd and make me a little nervous.
  • 0:34 – Hazard in bike lane (manhole cover, slippery when wet)
  • 0:50 – Starting at this point, the street gets wider and the bike lane moves to the far right of the street, which soon becomes a right-turn-only lane. I avoid this by staying in the main traffic lane to go straight. After the intersection, the bike lane continues on the far right, which once again becomes a right-turn-only lane. I suppose you could go straight from the right lane, but this seems like you’d be setting yourself up for a right hook.
  • 1:39 – The bike lane continues on the far right, but this is a one-way street. State law permits riding on either side. If you want to turn left (as I did), you have to maneuver across the traffic lane anyway.

In my view, this road is good for biking, and would be even better *without* the bike lanes. They encourage/force unsafe riding practices — riding in the door zone, going straight from a turn lane.

Here’s another video, in which I go through part of downtown Bloomington. I had previously been taking a route that missed the square entirely, but I’ve discovered it’s actually very pleasant riding by the square.

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