image quality; picture quality
Technical term used in computing, video, and imaging contexts to describe the visual fidelity of an image or video.
This camera has very high image quality.
We introduced a new codec to improve picture quality.
画質 is a more common, everyday term for image quality, while 映像品質 is more technical and often used in computing or professional video contexts.
Compound of 映像 (image, video) and 品質 (quality). A straightforward modern technical term.