Computer Graphics and Visualization Lab

Real-time volume exploration technique for holographic display

Description

The volume exploration refers to the observation of internal structures by manipulating visualization widgets such as a slicing plane. Since the advent of a commercial holographic display, the demand for 3D contents is also increasing in the medical visualization area. Holographic displays deliver a set of viewpoints through the lenticular lens so that a user can observe different sides of the object without wearing a pair of special glasses. Moreover, it comes natural for the user to perform the volume exploration using mid-air interaction. In this work, we present a novel volume exploration technique for holographic display. To accelerate the hologram rendering, we adopt the volume rendering pipeline to the holographic display mechanism. Also, to support a spatial interaction for volume exploration, we develop a cut-and-annotate interaction between volume object and point cloud. The proposed voxel classification algorithm produces a set of class properties for delineating different structures of the 3D object. We demonstrate our volume exploration method on several volume data sets under real-time user interaction.

Figure 1. The overview of rendering system.
Figure 1. The overview of rendering system.

Figure 2. (Left) The depth of the virtual hand is lost if the opaque depth is not considered in the rendering pipeline, (Right) Our revised rendering pipeline preserves the depth of opaque object during direct volume rendering..
Figure 2. (Left) The depth of the virtual hand is lost if the opaque depth is not considered in the rendering pipeline, (Right) Our revised rendering pipeline preserves the depth of opaque object during direct volume rendering..

Figure 3.(Left) The intersection between the virtual hand and volume data (Right) The overlay of volume intensity presents on the point cloud
Figure 3.(Left) The intersection between the virtual hand and volume data (Right) The overlay of volume intensity presents on the point cloud

Contact

Jaehyun Jang (jaehyunjang at kaist.ac.kr)

Publications

  • Jang, Jaehyun, Joowon Lim, and Jinah Park. "Real-time volume exploration technique for holographic display." International Forum on Medical Imaging in Asia 2021. Vol. 11792. International Society for Optics and Photonics, 2021.