Archive for the ‘video’ Category

3D Scanning

Tuesday, January 5th, 2010

I’ve come across this really interesting 3D scanning technique before – but I’ve now spent a bit more time following the various links and exploring it in more detail…

ThreePhase-500px.jpg

I’m keen to try it for myself and wonder if a ‘micro’ projector such as the Optoma Pico PK 101 DLP and IPEVO Point 2 View USB webcam and/or ‘tricked out’ PS3 Eye Webcam could be a compact and affordable solution – and possibly for live performance too?

There’s a good overview of the technique in the May 2008 post Turn a webcam and projector into a 3D scanner which also provides some Processing applets and code examples and lists useful references and links.

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Loading .mts files into Final Cut Pro 6.0.6

Wednesday, December 23rd, 2009

I have video documentation from PEAL that I’m planning to edit in FCP… but it’s in .mts format and from a couple of different HD AVCHD camera sources…

PastedGraphic.tiff

After a bit of head-scratching and online research I got to a reasonably straightforward and speedy solution… and in the process managed to clarify a few significant terms for myself such as:
Mbit/s V MBps
Apple ProRes 422
Similarities and Differences Between 1080i and 1080p

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Live video in Processing

Saturday, May 2nd, 2009

I’ve been hitting a wall trying to extend the Mirror2 – Video (Capture) example – patch by Daniel Shiffman – particularly with mirroring on the y axis as well as reflections, distortions and multiples. Luckily I came across the Create Digital Motion article Processing Tutorials: Getting Started with Video Processing via OpenCV which shows how to extend Processing’s treatment of live video by bypassing the somewhat limited inbuilt Video library and using the OpenCV Processing and Java library – which includes a flip function – instead…

two_camera_sources
Displaying two camera sources in the same Processing sketch – code found in processing.org’s Video capture, Movie Playback, Vision Libraries board – images thresholded to protct the innocent.

“OpenCV is an open source computer vision library originally developed by Intel. It is free for commercial and research use under a BSD license. The library is cross-platform, and runs on Mac OS X, Windows and Linux. It focuses mainly towards real-time image processing…”

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Latest Processing, Director, Tiction/mrmr etc. developments…

Sunday, March 22nd, 2009

…as well as Nick Rothwell’s shado, SevenUpLive…

mirror2_lewis_500px
My functionality developments for the Mirror2 patch by Daniel Shiffman.

Processing

As with my previous experiments with Flash I think that selecting Processing found and library examples I like and then extending their functionality will be a good way to develop my coding skills…

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Video in Processing, General Potterings…

Sunday, February 1st, 2009

With only a single core Intel MacMini to use at the moment I thought I’d keep off the audio and revisit some past programming explorations…

mirrome
The webcam to monome to midi app mirrome

But it was a fairly frustrating day… a couple minor victories being:

  1. managing to run an old VMWare Fusion virtual machine and copying off the old Processing and monome work I’d done when I was still trying to make Win XP my development platform;
  2. getting my machine to work with video capture in Processing… I’ve been struggling with recent Beta versions but an upgrade to the now officially released v1.0.1 threw up a new error dialogue box which helped me identify the problem – the b-l-a-c-k-o-p.com CamCamX plugin – and a google.com search helped find the solution – deleting the CamCamX component from the QuickTime plugins folder. Finally!

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Like a kid in a (monome) sweet shop…

Sunday, February 3rd, 2008

With my monome 64 due to arrive imminently I’ve been browsing the monome website for sparkly things I particularly like the look of…

monome sixty four

Starting with Ableton Live…

1. drumwreck by anton hornquist – website & youtube demo

monome step sequencer in maxmsp/live

Early days for this app… which seems both intuitive and ergonomic… and even works using the ‘monome40_fake’ patch. Latest developments on its monome discussion thread.

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Hybrid tonoscope

Tuesday, October 16th, 2007

Here’s a first draft outline as PDF – though it’s still waiting for feedback and contributions from Anthony Rowe.

There’s always more to find out there… Deep Vacuuming the Source Files and then looking fairly systematically through BIT-101 Lab has turned up several interesting Flash demos:

a sweet little non-interactive 3d particle system waveform – 041101_lewis.fla

bit-101.com - 041101_lewis.swf
Click on the image to load Flash in a pop up.

and a simple sound activated wave pattern – 050819_lewis.fla

bit-101.com - 050819_lewis.swf
Click on the image to load Flash in a pop up.

It also suggested some new and useful practitioner and reference links – though these have quickly branched out further still…

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Cymatics – A Study of Wave Phenomena and Vibration

Monday, July 30th, 2007

Always interested in approaches to visualising sound, I’ve been looking into Cymatics as pioneered by Dr. Hans Jenny in the 60s and 70s.

I found a PDF of a compilation of his original two volumes…
CYMATICS – A Study of Wave Phenomena and Vibration
Volume 1 – The structure and dynamics of waves and vibrations, 1967
Volume 2 – Wave phenomena, vibrational effects and harmonic oscillations with their structure, kinetics and dynamics, 1974

A youtube.com search for cymatics lists a surprisingly large number of relatively lo-fi videos of Hans Jenny’s original experiments, home made ‘tonoscopes’ and other related stuff…

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