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Cinematic Rendering
In medical diagnostics, cinematic rendering is an image processing technique applied to create three-dimensional, photorealistic images of cross-sectional data, such as computed-tomography, or magnetic resonance imaging (MRI)/ Cinematic rendering is an alternative to the volume rendering, the name was inspired by the modern computer animation techniques that allow studios, like Pixar, to create realistically looking objects. The steps used to produce the cinematic rendering are similar to the ones for the volume rendering: * the magnitude (gray) value of each voxel (3-dimensional pixel) produced during the scan is mapped into the color and opacity pair based on what structures need to be highlighted or hidden; * ray casting used for volume rendering, where each pixel in the 2D image is formed by a single ray of light, is replaced by path tracing with a global illumination model that integrates over all the illuminance arriving to every single point on the surface of an object. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volume Rendering And Cinematic Rendering Of A Whole-body CT Scan
Volume is a Measure (mathematics), measure of Region (mathematics), regions in three-dimensional space. It is often quantified numerically using SI derived units (such as the cubic metre and litre) or by various imperial units, imperial or United States customary units, US customary units (such as the gallon, quart, cubic inch). The definition of length and height (cubed) is interrelated with volume. The volume of a container is generally understood to be the capacity of the container; i.e., the amount of fluid (gas or liquid) that the container could hold, rather than the amount of space the container itself displaces. By metonymy, the term "volume" sometimes is used to refer to the corresponding region (e.g., bounding volume). In ancient times, volume was measured using similar-shaped natural containers. Later on, standardized containers were used. Some simple Three dimensional, three-dimensional shapes can have their volume easily calculated using arithmetic formulas. Volume ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
