otb::PleiadesPToXSAffineTransformCalculator Class Reference

#include <otbPleiadesPToXSAffineTransformCalculator.h>

Inheritance diagram for otb::PleiadesPToXSAffineTransformCalculator:

Collaboration diagram for otb::PleiadesPToXSAffineTransformCalculator:

Public Types
typedef itk::SmartPointer< const Self >	ConstPointer
typedef TransformType::OutputVectorType	OffsetType
typedef itk::SmartPointer< Self >	Pointer
typedef PleiadesPToXSAffineTransformCalculator	Self
typedef itk::LightObject	Superclass
typedef itk::ScalableAffineTransform< double, 2 >	TransformType

Public Member Functions
virtual const char *	GetNameOfClass () const

Static Public Member Functions
static bool	CanCompute (const ImageMetadata &panchromaticImd, const ImageMetadata &xsImd)
static TransformType::Pointer	Compute (const ImageMetadata &panchromaticImd, const ImageMetadata &xsImd)
static OffsetType	ComputeOffset (const ImageMetadata &panchromaticImd, const ImageMetadata &xsImd)

Private Member Functions
void	operator= (const Self &)=delete
	PleiadesPToXSAffineTransformCalculator ()=delete
	PleiadesPToXSAffineTransformCalculator (const Self &)=delete

Detailed Description

Compute the affine transform linking P and XS pixel position for Pleiades sensor bundles.

Pleiades sensor bundle are exactly homotetic, it is therefore possible to corregister the panchromatic and multispectral images with a simple affine transform without using any sensor modelling. This yields a very accurate corregistration and avoid the use of a DSM which may cause registration errors due to height errors.

This calculator is a helper class to build the affine transform. It consists in only two static methods: one to check if the transform calculation applies to the given pair of images, the other to actually estimate the transform.

The estimated transform returned by the latter transforms pancrhomatic image positions to multispectral image positions. If the inverse transform is needed, one can call the GetInverse() method of the transform to retrieve it.

Definition at line 55 of file otbPleiadesPToXSAffineTransformCalculator.h.

Member Typedef Documentation

ConstPointer

typedef itk::SmartPointer<const Self> otb::PleiadesPToXSAffineTransformCalculator::ConstPointer

Definition at line 61 of file otbPleiadesPToXSAffineTransformCalculator.h.

OffsetType

typedef TransformType::OutputVectorType otb::PleiadesPToXSAffineTransformCalculator::OffsetType

Definition at line 66 of file otbPleiadesPToXSAffineTransformCalculator.h.

Pointer

typedef itk::SmartPointer<Self> otb::PleiadesPToXSAffineTransformCalculator::Pointer

Definition at line 60 of file otbPleiadesPToXSAffineTransformCalculator.h.

Self

typedef PleiadesPToXSAffineTransformCalculator otb::PleiadesPToXSAffineTransformCalculator::Self

Definition at line 58 of file otbPleiadesPToXSAffineTransformCalculator.h.

Superclass

typedef itk::LightObject otb::PleiadesPToXSAffineTransformCalculator::Superclass

Definition at line 59 of file otbPleiadesPToXSAffineTransformCalculator.h.

TransformType

typedef itk::ScalableAffineTransform<double, 2> otb::PleiadesPToXSAffineTransformCalculator::TransformType

Definition at line 63 of file otbPleiadesPToXSAffineTransformCalculator.h.

Constructor & Destructor Documentation

PleiadesPToXSAffineTransformCalculator() [1/2]

otb::PleiadesPToXSAffineTransformCalculator::PleiadesPToXSAffineTransformCalculator ( )

privatedelete

PleiadesPToXSAffineTransformCalculator() [2/2]

otb::PleiadesPToXSAffineTransformCalculator::PleiadesPToXSAffineTransformCalculator ( const Self &  )

privatedelete

Member Function Documentation

CanCompute()

static bool otb::PleiadesPToXSAffineTransformCalculator::CanCompute ( const ImageMetadata &  panchromaticImd, const ImageMetadata &  xsImd  )

static

This function checks if the transform calculation applies to the given pair of ImageMetadata. Checked items are:

• Both ImageMetadata are identified as Pleiades images,
• Both images processing level is SENSOR",
• The ImageMetadata contains all required metadata
• XS and Pan ids (except last 4 letters) are equal.

  Returns

  True if the calculation applies

Compute()

static TransformType::Pointer otb::PleiadesPToXSAffineTransformCalculator::Compute ( const ImageMetadata &  panchromaticImd, const ImageMetadata &  xsImd  )

static

This function computes the transform for a pair of ImageMetadata. Note that the CanCompute() method is first called, and that an exception will be raised if computation can not be done.

This function reads both ImageMetadata support data and builds a transform that will exactly coregister the corresponding images.

Returns

The computed transform

ComputeOffset()

static OffsetType otb::PleiadesPToXSAffineTransformCalculator::ComputeOffset ( const ImageMetadata &  panchromaticImd, const ImageMetadata &  xsImd  )

static

This function computes the offset in pan pixels for a pair of ImageMetadata. Note that the CanCompute() method is first called, and that an exception will be raised if computation can not be done.

Returns

The computed transform

GetNameOfClass()

virtual const char* otb::PleiadesPToXSAffineTransformCalculator::GetNameOfClass ( ) const

virtual

operator=()

void otb::PleiadesPToXSAffineTransformCalculator::operator= ( const Self &  )

privatedelete

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

• otbPleiadesPToXSAffineTransformCalculator.h