This is the start of what we now commonly know as chroma key.

这便我们现在常说的色键技术的开端。

Well, interestingly enough, that's what we call the chroma key, a green screen.

有趣的，这就我们所说的色度键，一。

Make sure to get it as flush as possible against your skin to minimize folds that might make it hard to chroma key out, like this.

- 确保紧贴皮肤， 尽量减少可能影响抠像效果的褶皱，就像这样。

Vlahos would go on to further develop and improve the chroma key process.

弗拉霍斯继续改进和发展色键技术。