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What is the .XVF File Extension?

.XVF File Extension Description:

The file extension .xvf is a proprietary format associated with the Virvo format for the representation of extended volume data, and is an acronym for the VIrtual Reality VOlume Rendering. The volume rendering technique, referenced by the file extension .xvf, is implemented to display a two dimensional projection of a 3D object that is discretely sampled in a data set. The typical composition of 3D data sets are 2D slice images that are acquired via MRI or CT scanners, which are usually acquired in regular interval patterns, as well as a regular number of image pixels.

The .xvf file extension format is capable of handling more complex data types, but remains relatively easy to describe with a host of different feature sets like incorporation of time steps (multiple volume datasets) in a single file including the storage of multiple functions for transfer. The format of the data represented by the file extension .xvf is not limited to the 8-bit per voxel, but can have a value of anywhere from 8- to 32-bit per voxel. The byte order presents the most significant property first based on the format's specifications.

The header file's char data type has nine bytes and the ID string VIRVO-XVF with an offset value of zero describes it. The .xvf file extension's data area begins at the offset to data area portion, with the voxel at top left front being the first, and going toward the right for the voxel order with every voxel being successively stored. Utilizing the RLE encoding mode for the file extension .xvf provides a four byte big endian value, which precedes every frame that identifies the total number of succeeding bytes to be encoded. A zero value represents a frame that will be stored without the encoding process.

The transfer function related to the file extension .xvf that has a zero type consists of the zero terminated description string as well as the RGBA format transfer function data. Every instance of the R/ G/ B/ A entry in reference to the .xvf file extension is coded as a single unsigned byte.

Author: Jurgen P. Schulze
Author URL:
Related Applications: VOX
Common Path: User Defined


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The Usual Reason for .XVF files Errors to Occur:

A typical and frequent reason for .XVF files errors is failure in the Windows registry - cleaning is necessary to avoid additional damage in other software and/or devices. Dangers include device failure, blue screen errors and fatal crashes.

What are the Symptoms of .XVF files Errors?

.XVF files error symptoms include application lock ups, system shut down or start up troubles, slow pc operation, sluggish behaviour, screen freeze, beeping sounds, problems opening documents as well as problems during application installs.

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