More affordable than ever, 3D printers are booming for personal, professional, and educational use. Here's everything to know before you buy one, along with the top models from our hands-on testing.

We construct two large-scale 4K and 8K Ultra-High-Definition datasets (i.e., UHD4K and UHD8K) for low-level image enhancement. Each of the datasets provides different settings for image super ...