Oyvind Kolas: Na av da (Now by Then)

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    Na av da (Now by Then)



    Interactive video installation using custom software


    10' x 10' x 20'


Artist Statement:

    The present is a product of the past. This idea is illustrated by an enchanted mirror that reflects the present as a multifacted image mosaic made from images captured in the past.

    The installation is continuously evolving. The set of images used to construct the current experience is composed of earlier encounters. This makes every participant a contributor to future experiences.

Technical Information:

    The installation consists of a projector, a camera, a computer, and software that maintains the puzzled mosaic.

    When the software detects motion in the scene (monitored by the camera), an image is stored in a database and split into rectangular subimages. A list of the subimages that have changed since the last generated mosaic is created. The database is then asked for a list of full-scene images that correspond to the changed subimages. To further speed up queries, infrequently used images are periodically purged from the database.