Info

Figure 10.10.1 The 3D digital image. (A) The image is composed of box-shaped elements, called "voxels," in contrast to 2D images, which are composed of rectangular elements called "pixels." The image shown here has 3 voxels in the x direction, 5 in the / direction, and 4 in the z direction; therefore the total number of voxels in this 3D image is 3 x 5 x 4 = 60 voxels. (B) A 2D slice image in the xz plane from the 3D image.

Figure 10.10.1 The 3D digital image. (A) The image is composed of box-shaped elements, called "voxels," in contrast to 2D images, which are composed of rectangular elements called "pixels." The image shown here has 3 voxels in the x direction, 5 in the / direction, and 4 in the z direction; therefore the total number of voxels in this 3D image is 3 x 5 x 4 = 60 voxels. (B) A 2D slice image in the xz plane from the 3D image.

Figure 10.10.2 Display of 2D slices cut from a 3D image. (A) Schematic representation of a 3D image as a series of 2D slices. (B) Display of a 3D image in the form of a gallery of 2D slices. Shown are 31 slices comprising a 3D image of a solid white object on a black background. (C) Schematic showing the orientation of orthogonal slices through a 3D image. Nonorthogonal slices can also be cut from the image, but they are computationally complex to calculate. (D) The three orthogonal slices that intersect at the center of the 3D image shown in gallery form in B (the xy slice is the same as the slice at row 2, column 8 in panel A). Note that the orthogonal slices reveal that the object is a dumbbell consisting of two superimposed spheres (see Lockett et al., 1998a, for more details). This is not obvious from the gallery in panel B due to the orientation of the dumbbell with respect to the slices.

Three-Dimensional Image Visualization and Analysis

Getting Started With Dumbbells

The use of dumbbells gives you a much more comprehensive strengthening effect because the workout engages your stabilizer muscles, in addition to the muscle you may be pin-pointing. Without all of the belts and artificial stabilizers of a machine, you also engage your core muscles, which are your body's natural stabilizers.

Get My Free Ebook