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== 3D Model == | == 3D Model == | ||
[[File:Animation.gif|150px|left|thumb|3D Model]] | [[File:Animation.gif|150px|left|thumb|3D Model]] | ||
<br clear="all" /> | <br clear="all" /> | ||
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<gallery> | <gallery> | ||
File:ClampIllustration.jpg|Clamps | |||
File:buildingprocess01.jpg|conductor board material | File:buildingprocess01.jpg|conductor board material | ||
File:buildingprocess02.jpg|wedges | File:buildingprocess02.jpg|wedges | ||
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File:DIYLeiterplattenmodell01.jpg|copper model | File:DIYLeiterplattenmodell01.jpg|copper model | ||
</gallery> | </gallery> | ||
The conductor board material can be easily sawn with a fret saw. Any sharp edges can be removed with rasps and sanding paper. The parts are assembled by soldering them together, also a nut is soldered on the inside of one of the wedges. The threaded bold is fixated to the box with small clamps to keep it steady but turnable at the same time. It reaches through the outer wall of the box into the nut within the wedge and thereby provides the mechanism for the wedge movement. | |||
== Microscopic Images == | == Microscopic Images == | ||
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</gallery> | </gallery> | ||
<videoflash type=vimeo> | <videoflash type=vimeo>62867012|400|260</videoflash> | ||
=== Hay infusion === | === Hay infusion === | ||
Another possibility to create specimen to look at with a microscope is the hay infusion. Collect a handfull of hay and dry leaves and about 500 ml of pond water. Put the hay in a glass bowl and pour the water on it. Keep your hay infusion in a bright place at room temperature. After a few days you can find | Another possibility to create specimen to look at with a microscope is the hay infusion. Collect a handfull of hay and dry leaves and about 500 ml of pond water. Put the hay in a glass bowl and pour the water on it. Keep your hay infusion in a bright place at room temperature. After a few days you can find protozoa like Paramecium, Amoebia or Euglena. The hay infusion results in different protozoa depending on the material that is used. Possible materials are hay, dry leaves or salad that wasn't treated with pesticides. | ||
<gallery> | <gallery> | ||
File:grass.jpg|dry grass and leaves | File:grass.jpg|dry grass and leaves | ||
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File:hayinfusion.jpg|hay infusion | File:hayinfusion.jpg|hay infusion | ||
</gallery> | </gallery> | ||
After 5 days at room temperature a lot of bacteria and also quite a lot of protozoa have developed. | |||
<videoflash type=vimeo>62992002|400|260</videoflash> | |||
<br> | |||
<videoflash type=vimeo>62993903|400|300</videoflash> | |||
===Clotting Blood=== | |||
This is a fast motion video of clotting blood. The video's speed was increased by about 700%. The real time clotting took almost 5 minutes. | |||
<videoflash type=vimeo> | <videoflash type=vimeo>62994294|400|300</videoflash> | ||
=== Guess what === | === Guess what === | ||
<videoflash type=vimeo>54253797|400|300</videoflash> | <videoflash type=vimeo>54253797|400|300</videoflash> | ||
==Artistic approach== | |||
The aim was to create sounds to the microscopic pictures that are distinct and reflect the processed video input. The first step was to find parameters to extract directly from the picture and to transform them info sound in a logical way. To achieve the transformation into sound this the visual programming language Pure Data and the software Mainstage can be used. | |||
Parameters such as | |||
*brightness | |||
*contrast | |||
*histogram | |||
*movement | |||
*colour | |||
were considered. | |||
There were however some restrictions because of the quality of the image. The idea of using colour for example had to be dismissed because of the automatic white balance of the camera. | |||
In the end three different parameters were chosen: the overall brightness of the image, the histogram of the image, which changes over the period of a video and the movement of individuals inside the picture. | |||
===Brightness=== | |||
The parameter brightness was used to create an atmospheric sound that does not undergo any sudden changes. Long lasting notes with echo were chosen to create a general atmosphere. | |||
<videoflash type=vimeo>62855963|520|270</videoflash> | |||
The software takes the RGB values of the picture, adds them and divides them by 3 which gives the general brightness of the picture. This value is transformed to a midi compatible value to create a sound using a synthesizer software. | |||
===Histogram=== | |||
The values of the histogram of the pictures are taken and transformed into notes. This sequence is replayed over and over again. Just by listening to the histogram sound it is possible to tell if the picture has a consistent brightness distribution of if there are outliers which represent as spikes in the histogram. | |||
The histogram sound constributes to the general atmosphere by adding a sense of strangeness and oddness. | |||
<videoflash type=vimeo>62856047|520|230</videoflash> | |||
====Combination==== | |||
The following examples combine the parameters brightness and histogram. | |||
Video stills: | |||
<videoflash type=vimeo>56874082|520|210</videoflash> | |||
<videoflash type=vimeo>56874080|520|210</videoflash> | |||
Video: | |||
<videoflash type=vimeo>56874349|520|210</videoflash> | |||
===Movement=== | |||
By defining whether there is life in the picture or not, movement is a very important parameter to create an authentic sound but also a very tricky one. | |||
The aim was to provide the possibilty to tell something about the intensity and direction of the movement just by listening to the sound. | |||
This video only shows the movement parameter: | |||
<videoflash type=vimeo>62856465|400|300</videoflash> | |||
The y coordinate is the parameter which controls the pitch of the tine, that means, if the creature moves up the pitch rises, if the creature moves down the pitch also falls. | |||
The x coordinate controls how fast the notes are played. If the creature moves to the left the sound is calmer and has a low velocity, the more right the creature moves, the faster the sound gets. | |||
There are certain limitations. The detection is not completely accurate, the cross hair jumps up and down within the creature. It is however possible to tell something about the kind of movement that is performed in the picture. | |||
====Combination==== | |||
The following example combines all three parameters: | |||
<videoflash type=vimeo> 62856497|400|300</videoflash> | |||
The tracking works well for videos with only one moving object. The problem of jumping cross hairs is increased when there are more moving objects but although the sound does not reflect the direction of movement anymore, it reflects the intensity of movement. | |||
<videoflash type=vimeo> 62856099|400|300</videoflash> | |||
===End Result=== | |||
By combining all three parameters a sound atmosphere is generated that is directly linked to the images seen. Altogether it creates a feeling of a microscopic word that is, although it is part of our every day life, a world completely foreign to us. The foreignness already immanent in the picture is intensified through the sound. | |||
Furthermore the approach can be seen as a possibility to perceive something within the picture that is not directly visible to the eye. A slight change in the brightness of the picture for example can be heard much easier than seen. This way a further development of the approach could be used to help perceiving microscopic images, possibly even in a scientific way. | |||
<videoflash type=vimeo> 62856510|400|300</videoflash> | |||
==Downloads== | |||
* SketchUp Model: [[Media:ModelWedges.zip]] (SketchUp required) | |||
* Pd Patches and MainStage Synthesizer: [[Media:Catleen Microscopy Pd Patches.zip]] (Pure Data and Mainstage required) | |||
==Links== | |||
You can also find the full documentation on my [http://www.cathleengoering.de web portfolio]. Cathleen Göring. | |||