TOGS: Gaussian Splatting with Temporal Opacity Offset for Real-Time 4D DSA Rendering

Understand

Four-dimensional Digital Subtraction Angiography (4D DSA) is a medical imaging technique that provides a series of 2D images captured at different stages and angles during the process of contrast agent filling blood vessels.

• It plays a significant role in the diagnosis of cerebrovascular diseases.
• Improving the rendering quality and speed under sparse sampling is important for observing the status and location of lesions.
• The current methods exhibit inadequate rendering quality in sparse views and suffer from slow rendering speed.