The Visible Human (female) data set is essentially a brick made up of RGB (red, green, blue) values each representing the color of a small portion, a 1/3 mm cube, of the volume. Each RGB value is called a voxel, or Volume Element.

PVB has two main windows � the left window is the view window, and displays the 2D slice information, while the right window is the context window, and presents the 2D slice in the proper scale and orientation within the 3D context. The 3D display includes anatomical structure surfaces, including the overlying skin. The intersection of surfaces and the slicing plane can be viewed in both the 2D and 3D windows. Surfaces, represented as meshes, are retrieved for display using HTTP. The windows are empty until you open a dataset.

Loading a Dataset

To open a dataset, choose "Dataset > VHF - RGB." Note that the cursor in the volume browser is a "+" rather than an arrow.

The Visible Human Female dataset is automatically loaded into the volume browser:

As the Volume Browser starts up, or if it needs to request more data from the server, you might notice regions which you know are inside the body but are colored black. Depending on the speed of your network connection, the black colored regions may fill themselves in quickly or it may take a few minutes.

View Angles

You are automatically placed in navigation mode when you start the Volume Browser, and the default view is a sagittal view, from the side. There are three standardized viewing angles: sagittal, coronal (from the front), and transverse (from above):

Sagittal View

Coronal View

Transverse View

Exiting the Volume Browser

To exit the PSC Volume Browser, either press "Esc" or click on the view window to activate it, then choose "Dataset > Exit."