Green screen filming applies the technique of chroma keying to remove the background (green) color from a video. This approach allows the video editor to insert additional objects (e.g., background images, icons, photos, and text) that align with the presenter’s speech during the post-production process.
The weatherman explaining the weather is a great example of the use of a green screen. The weather map behind the weatherman is inserted behind the presenter, which allows the weatherman to describe the weather conditions with a clear visual illustration.
A green screen studio is available at the Division of Teaching Excellence and Innovation (DTEI). Located in the Anteater Instructional and Research building, the green screen studio provides UCI faculty with more options and flexibility in creating instructional videos to motivate students' learning interests.
If you would like to learn more about DTEI’s studio filming or post-production services, please contact us at DTEIsupport@uci.edu.
Tips and Best Practices
- Keep it short! - Online attention spans are much different than in the classroom. Try to "chunk" up your lecture into several smaller videos, each approximately 7-12 minutes in length.
- It's okay to mess up! - You don't have to be a one-take-wonder or do your entire lecture flawlessly—that's what the editing team is for! If you flub or misspeak, just stop, take a breath, and restart from the beginning of that sentence or thought.
- Avoid wearing green or complicated patterns. - Green on clothes will be removed in post production along with the background, and intricate patterns can create an undesirable moire effect in the camera. Bold patterns are fine, and solid colors are best.