Three-Dimensional Video

There is CT, for computerized tomography, a wedding of x-ray and the computer that scans a portion of, say, the brain by revolving an x-ray tube around the head, converting the pictures into a digital computer code to make high-resolution, three-dimensional video images accurate to. 9 millimeter. Differences in tissue density, between abnormal and normal tissue, are revealed fine details of bone structure appear clearly the location of tumors is pinpointed. 

In this table, experiments of No. 1 to 7 are for the single factor experiments and the orthogonal experiments eover No. 3, 5, 7 and No. 8 to 13. The image analysis method was employed to measure the fiber diameter. The images of nonwoven samples were acquired by the QUESTER three-dimensional video frequency microscope and then processed by the image analysis software named Image-Pro Plus to measure the fiber diameter. Further details about the experiment can be found in reference [3],... 

The eombination in a compact system of an infrared sensor and a laser as excitation source is called a photothermal camera. The surface heating is aehieved by the absorption of the focused beam of a laser. This localisation of the heating permits a three-dimensional heat diffusion in the sample to be examined. The infrared (IR) emission of the surface in the neighbourhood of the heating spot is measured by an infrared detector. A full surface inspection is possible through a video scanning of the excitation and detection spots on the piece to test (figure 1). 

Among the quantities which have proven of value as graphical models are the molecular orbitals, the electron density, the spin density (for radicals and other molecules with unpaired electrons), the electrostatic potential and the local ionization potential. These may all be expressed as three-dimensional functions of the coordinates. One way to display them on a two-dimensional video screen (or on a printed page) is to define a surface of constant value, a so-called isovalue surface or, more simply, isosurface. ... 

After confirming that the flow state in a circular pipe becomes steady, the three-dimensional movement of water, which is represented by the movement of the tracer particles, is measured by recording their movement on video. The local mixing capacity M0 and MI based on the outflow and inflow, respectively, of each radial region as the distributor and blender, respectively, is calculated by using Eq. (2.27). 

The amount of gas dissolved in or adsorped to the solid is determined from the final weight and the final size of the sample. Sample weight is the difference between actual mass and buoyancy. Buoyancy in turn is the mass of the gas displaced by the solid, which is the product of gas density and sample volume. The volume increase of the sample has to be derived from the two-dimensional video image which shows projected areas of the particles in the view cell. Particle technology has been dealing extensively with this problem. Conventional wisdom has it that particle volume is the same as that of a sphere with an equal projected area however, this is a reasonable assumption only if all of the following three conditions apply ... 

Vessels are diffieult to visualize in their entirety due to their length and irregular pathways in wood. The eomplexity of these pathways has been investigated using video and cinematographie reeordings of numerous individual transverse seetions of wood so providing the clearest three-dimensional impression of vessel pathways. 

In this subsection, a special case of experience traces will be addressed. In contrast to the structural models described in the last subsection, multimedia information usually does not provide any possibility of extracting meaningful semantic information. As a concrete application scenario, the visualizations resulting from three-dimensional plastics engineering simulations can be stored as short video clips, and then structured and annotated according to an appropriate domain model. This allows the retrieval and thus the reuse of these complex simulation results, together with the domain experts interpretations. 

Finally, we considered the use of three dimensional analytical techniques such as the GC-MS-MS and video fluorometric monitoring of BPLC effluents. As with two dimensional techniques, we can use Rank Analysis, Rank Annihilation and Factor Analysis. However, in this case the data can be shown to be unambiguously decomposible, even when there is severe overlap among conq>onents. 

ACD/3D Viewer Converts two-dimensional structures from ACD/ChemSketch into their three-dimensional counterparts and views, measures and handles them in virtual 3D, including setting up a rotational video http //www.acdlabs.com... 

CaulTman. S., Brown, R.. and Bartos, A. (1994), Video monitoring of a large-scale commercial three-dimensional braider for advanced composite preform process control, Proc. of the Conf. on NDE Applied to Process Control of Composite Fabrication, Oct. 1994, pp. 127 142. 

---