We decided to shoot the videos indoors, actually in one of our classrooms. All the dialogues were performed in front of a green screen. Green screen for indoor shoot, or chroma keying, is a special effects/post-production technique for compositing (layering) two images or video streams together based on colour hues (chroma range). Green screen technology is the basis of the effects seen in everything from the latest Hollywood blockbusters to the weather forecast. The idea is simple. If you shoot a video with a single coloured backdrop (green is often used) the computer software allows you to make that colour transparent – replacing it with any other video clip, graphic or still image. With green screen, it’s simple to superimpose anything or anyone into any shot. You can transport yourself to the moon, appear in your favourite film, or make a presentation along with all the relevant facts and figures.
After the video had been shot we edited them. The post-production consisted of replacing the background and adding special and sound effects. The sound effects were recorded separately and the “inserted” into the video. The videos also include simple animations placed at beginning and end of the videos. We are going to describe the whole process in detail to our partners in one of the following POOLS-3 project workshops. Meanwhile, you can have a look at another example of video production made by PELICAN.