SoCudaSeismic Class Reference
[CUDA algorithms]

Seismic attribute functions for CUDA buffers More...

#include <Inventor/cuda/algorithms/SoSeismic.h>

Inheritance diagram for SoCudaSeismic:

List of all members.

Public Member Functions
	SoCudaSeismic ()
virtual int	computeInstPhase (SoBufferObject *sourceBufferObject, SoBufferObject *targetBufferObject, int traceSize, int numTrace)
virtual int	computeEnvelope (SoBufferObject *sourceBufferObject, SoBufferObject *targetBufferObject, int traceSize, int numTrace)
virtual int	computeHilbert (SoBufferObject *sourceBufferObject, SoBufferObject *targetBufferObject, int width, int height)
int	computeInstPhase (SoCudaBufferObject *sourceBufferObject, SoCudaBufferObject *targetBufferObject, int traceSize, int numTrace)
int	computeEnvelope (SoCudaBufferObject *sourceBufferObject, SoCudaBufferObject *targetBufferObject, int traceSize, int numTrace)
int	computeHilbert (SoCudaBufferObject *sourceBufferObject, SoCudaBufferObject *targetBufferObject, int width, int height)

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Detailed Description

Seismic attribute functions for CUDA buffers

The Seismic module provides functions for computing seismic attributes.

NOTE: The classes in this module do not exist in Open Inventor 10.0 and later.

Examples:

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Constructor & Destructor Documentation

SoCudaSeismic::SoCudaSeismic

(

)

Constructor.

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Member Function Documentation

int SoCudaSeismic::computeEnvelope	(	SoCudaBufferObject *	sourceBufferObject,
		SoCudaBufferObject *	targetBufferObject,
		int	traceSize,
		int	numTrace
	)

Compute envelope (amplitude) attribute on a set of seismic traces.

CUDA optimized version.

• This function handles SoCudaBufferObject input output type only.
• Data stored in buffers must be of type float.

virtual int SoCudaSeismic::computeEnvelope	(	SoBufferObject *	sourceBufferObject,
		SoBufferObject *	targetBufferObject,
		int	traceSize,
		int	numTrace
	)			[virtual]

Compute envelope (amplitude) attribute on a set of seismic traces.

amp(t) = sqrt( re^2(t) + im^2(t))

• Reimplements the SoSeismic version to check if input and output buffers are both of type SoCudaBufferObject. If yes, then CUDA optimized version is used, else the CPU version is used.
• Data stored in buffers must be of type float.

Parameters:

	sourceBufferObject	Should contain the real part of the complex trace (original trace data).
	targetBufferObject	should contain the imaginary part of the complex trace (Hilbert transform of trace data). Note: targetBufferObject will be overwritten with the result values.
	traceSize	Number of samples in each trace (must be same for all traces).
	numTrace	Number of traces.

Reimplemented from SoSeismic.

int SoCudaSeismic::computeHilbert	(	SoCudaBufferObject *	sourceBufferObject,
		SoCudaBufferObject *	targetBufferObject,
		int	width,
		int	height
	)

Compute Hilbert transform on a set of seismic traces.

CUDA optimized version.

• This function handles SoCudaBufferObject input output type only.
• Data stored in buffers must be of type float.

virtual int SoCudaSeismic::computeHilbert	(	SoBufferObject *	sourceBufferObject,
		SoBufferObject *	targetBufferObject,
		int	width,
		int	height
	)			[virtual]

Compute Hilbert transform on a set of seismic traces.

The Hilbert transform is computed by convolving sourceBufferObject with a windowed (approximate) version of the ideal Hilbert transformer.

• Reimplements the SoSeismic version to check if input and output buffers are both of type SoCudaBufferObject. If yes, then CUDA optimized version is used, else the CPU version is used.
• Data stored in buffers must be of type float.

Reimplemented from SoSeismic.

int SoCudaSeismic::computeInstPhase	(	SoCudaBufferObject *	sourceBufferObject,
		SoCudaBufferObject *	targetBufferObject,
		int	traceSize,
		int	numTrace
	)

Compute instantaneous phase attribute on a set of seismic traces.

CUDA optimized version.

• This function handles SoCudaBufferObject input output type only.
• Data stored in buffers must be of type float.

virtual int SoCudaSeismic::computeInstPhase	(	SoBufferObject *	sourceBufferObject,
		SoBufferObject *	targetBufferObject,
		int	traceSize,
		int	numTrace
	)			[virtual]

Compute instantaneous phase attribute on a set of seismic traces.

phase(t) = arctan( im(t)/re(t))

• Reimplements the SoSeismic version to check if input and output buffers are both of type SoCudaBufferObject. If yes, then CUDA optimized version is used, else the CPU version is used.
• Data stored in buffers must be of type float.

Parameters:

	sourceBufferObject	Should contain the real part of the complex trace (original trace data).
	targetBufferObject	should contain the imaginary part of the complex trace (Hilbert transform of trace data). Note: targetBufferObject will be overwritten with the result values.
	traceSize	Number of samples in each trace (must be same for all traces).
	numTrace	Number of traces.

Reimplemented from SoSeismic.

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The documentation for this class was generated from the following file:

• Inventor/cuda/algorithms/SoSeismic.h