the idea is based on using two video layers, the one on the top with greater opacity will be a live stream showing a person who is in front of the monitor (camera will be positioned on top of the monitor), second layer will contain moving objects, people etc. therefore creating an effect of a different environment behind a person interacting with the installation; second pre-made layer will show the same location (same room), so a person will have a feeling that moving objects and people behind them are real
for this to be successful we will need to create a reason for a person to sit in front of the monitor to catch him in the right position on the live streaming layer
since layers cannot have 100% of opacity and e.g. people walking behind a viewer are going to be partly visible through him, then it is important to make sure we get rid of the feeling that there are two layers. we can shoot people walking on the background one by one and make them transparent to some extent when merging the footage, room will be static, people will be half transparent walking through each other and therefore a person who will later be placed in front of the monitor will be a part of the installation without feeling the two obvious layers


interlaced technique uses the method of displaying odd and even numbers of the lines in a picture separately, the advantages of this is the lower bandwidth requirement comparing to the progressive technique, however fast moving objects captured with this technique make the actual lines visible when played on the screen, plus as opposed to progressive video format frames cannot be used as still images


