vivo4d2.5. Data preparation. For synthetic and in vivo data sets, we rely on the following data preparation steps to create training data. We consider the acquired image volume as the hh-resolution reference data. 1. We firstAI Technology Intellent Voice Control 4D Massage Mechanism Self-Adaptive SL-Track Dual Mechanism Technology Touchscreen Remote Controller 52 Cell Full Body Air Massage Lumbar Heat Therapy 12 Automatic Massage Modes 6