FreeVol-3D Features  

Fast Volume Rendering

FreeVol-3D provides fast high-quality volume rendering. Volume rendering algorithms include Colour, Grayscale, and Maximum-Intensity Projection. Volumes may be viewed and manipulated using a highly interactive user-interface.

Colour & Opacity Presets with Editor

The appearance of the volume is interactively controlled using the Colour & Opacity Editor. An extensive list of commonly used Colour & Opacity Presets is provided. These may be fine-tuned using the editor, and stored for subsequent use.

Interactive Cutaway Viewing

Volume-interiors are easily visualised using the Cutaway-Viewing tool. A Cut-Plane is used to slice through the volume, revealing the interior regions. The cut-plane is easily positioned and oriented using the mouse.

An additional cut-plane may be added to create a Slab-View. The user can isolate and view regions of interest very easily and in real-time, using easy click-and-drag mouse operations.

Shaded Surface Display  

FreeVol-3D’s Shaded-Surface module allows easy visualisation of surfaces in the volume. Surfaces may be specified by intensity-based Thresholding. Alternatively, the Seeding option allows selection of specific connected structures of interest.

MIP (Maximum Intensity Projection)  

FreeVol-3D's MIP module includes:

• Fast high-quality MIP display.
• Thresholding to exclude unwanted intensities
• MIP-Radials for incremental rotated MIPs

Sculpting 

Unwanted regions in a volume may be sculpted away easily:  

• Seed-based Sculpting: Point on the region and sculpt                                                                                                                    

• ROI Sculpting: Mark a region and delete it

Multi-Planar Reformat (MPR)

The MPR Module includes a powerful suite of tools for generating MPR sections:

• Oblique and Double-Oblique Sections, through a simple click-and-drag mouse interface.
• 3D Correlation Volume Display, providing a highly intuitive visual cue that facilitates quick and accurate MPR sectioning.
• Multi-Cut Tool, for generation of multiple sections along a chosen orientation.
• MPR-Slab Tool, for visualisation of slab-sections of desired thickness.
• Blending, Maximum-Intensity-Projection, and Minimum-Intensity-Projection slab modes.

Image and Movie Capture

Images displayed by FreeVol-3D may be captured to various image formats (incPEG, BMP). Visualisation operations performed in the Volume Display may be captured to an AVI movie file.