Infinity Ward has confirmed that for PS4 users, the high res textures for Call of Duty: Ghosts are automatically installed. The installation can up to 15 minutes, but if you’re playing while it’s installing, it’ll take 30+.
To our PS4 fans, #CODGhosts installs the high-res textures in the background once the disk is in your system. We estimate it takes about 10-15 minutes. And possibly 30+ if you’re playing while it’s still installing. Unfortunately, there’s no way to see the progress of when it’s complete. Once complete, you’ll see the high-res textures in-game.
SOURCE: Infinity Ward