Volume-Rendering-Based Interactive 3D Measurement for Quantitative Analysis of 3D Medical Images

Figure 5

The rendering of the projection image and 3D plane widgets. The projection image is generated by projecting the clipped volume onto the screen using volume rendering. It is worth noting that the center of the volume is always located in the intermediate plane. The projection image is textured and mapped onto the intermediate plane, reconstructing the depth information of the projection image. This depth information is the basis to correctly display the combination of the projection image and 3D plane widgets.