{"id":884,"date":"2018-10-10T15:34:01","date_gmt":"2018-10-10T19:34:01","guid":{"rendered":"http:\/\/www.joshuarosenstock.com\/teaching\/lightart-a18\/?p=884"},"modified":"2018-10-10T15:34:01","modified_gmt":"2018-10-10T19:34:01","slug":"final-documentation-john-stegeman","status":"publish","type":"post","link":"https:\/\/www.joshuarosenstock.com\/teaching\/lightart-a18\/jtstegeman\/final-documentation-john-stegeman\/","title":{"rendered":"Final Documentation: John Stegeman"},"content":{"rendered":"

Overview<\/h2>\n

The long-exposure-panoramic-display (or LEPDIS) was a fun project for the light art practicum.\u00a0 LEPDIS utilizes a similar technique to Persistence of Vision displays, however instead of trying to display an image as fast as possible to make it visible to the human eye, the goal was to make the display look like nothing special to the human eye but when a long exposure picture or panorama is taken, an image would magically appear.\u00a0 LEPDIS was setup with a collection of 24 images to cycle through with image taking about 15 seconds, for a total cycle time of 6 minutes before any image would be shown twice. A diagram of how the concept works is shown below.<\/p>\n

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The images chosen to display on LEPDIS were broken into three general categories listed below. The images in the categories were chosen to work well with the ethereal and mysterious nature of the art.<\/p>\n

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  1. Out of this world images. These are images that are taken in\/of space. These images were chosen for their great contrast between light and dark as well as for some vibrant colors. The aspect of having images in\/of space float into existence in an otherwise blurry background fits well with the medium and lets the final result capture the nature of the original objects of the images, (relatively) small distinct items in a vast emptiness.<\/li>\n
  2. Ethereal or spooky images. Ghostly and shadowy images work well with the ethereal nature as the subject appears to float in nothing before the photographer.\u00a0 It also is very good for scary\/spooky images since the image slowly is displayed in front of people, but is contents are unknown unless it is photographed.<\/li>\n
  3. Images people might not see otherwise.\u00a0 This is sort of a final category that includes images of places and things that people might not get to see with their own eyes. These are just a final collection of images that produce nice vibrant patterns without a camera, yet still produce good final images.<\/li>\n<\/ol>\n

    Results<\/h2>\n

    Shown below are the images taken of the final image set. Lines are present in the final image because of the small separation between LEDs in the 144 RGB LED strip used. The difficulty of acquiring an image is not difficult and as demonstrated in class, most people could get decent results after seeing it done once.\u00a0 The most difficult part of capturing images is that the initial images had varying widths, and so when panning across the strip, some images would look a little squished. Additionally, images that contain spheres or perfect circles are harder to collect perfect images of as small variations of speed in the camera when capturing the image show up more drastically on circles than say a waving line; even so, with a few attempts, a good result can be achieved.<\/p>\n