0329 - how to show the motion

This post is from my another class; media environment design studio 2013-1 : project 1 (link)

At first, I thought about how to make a relationship between motion and sound. That's the reason why I used a theremin. It could be measured the position with sound changes.

I hung 2 balls to the antenna with 2 types of thread ; elastic and inelastic.

and found values of x, y depth. (also sound pitch)

theremin + motion tracking

I got position values of 3 tracking points from the video I took, and then made a 3D object with 295 vertexes.

3d object _clip motion

screen capture _in Maya

_vertex.x = position.x (0-1024)
_vertex.y = position.y (0-768)
_vertex.z = peak value of theremin sound (1-1000)

And developed it using Plexus effect in After effects.

4 steps with Plexus

Next, I connected my previous work with the night view, because Prof. David said it reminded city lights at night. (and I think so, too)

In addition, I think a circular motion in the 1st video is very similar to a circumpolar star (or the diurnal motion), and city lights are stars on the ground.

Based on this idea, I combined 2 different motions and made a kinetic object using Syntheyes.

5 videos ; theremin + city lights

_ video 1
_ video 2
_ video 1+2 _dot pixels
_ video 1+2 _plexus_line
_ video 1+2 _plexus_triangulation

I think Syntheyes is much easier to track than Tracker in After effects.

screen capture in Syntheyes 

screen capture in Syntheyes

screen capture in After effects

When I tracked the video using Syntheyes, there were some errors from the movements of tracking points. Maybe it was because of cars.

error in Syntheyes and my previous work

I thought this error (or some motions and sounds) could be used for making various changes, and develop my works.

So I took more videos and made some kinetic sculptures controlled by motion. The right side of the video is added a previous motion, and all motions are connected.

kinetic city sculpture
_ video 1 / video 1
_ video 2 / video 1+2
_ video 3 / video 1+2+3

screen capture in After effects

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Human and Computer ;
The Visible and The Invisible

Hayoun Lee

Prof. David Hall

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