Detailed Description

L2WithDeadZone implements a standard L2 penalty, but with a dead zone of width 2*k, centered at the origin.

The resulting penalty within the dead zone is always zero, and grows quadratically outside the dead zone. In this sense, the L2WithDeadZone penalty is "robust to inliers", rather than being robust to outliers. This penalty can be used to create barrier functions in a general way.

Inheritance diagram for gtsam::noiseModel::mEstimator::L2WithDeadZone:

Public Member Functions
	L2WithDeadZone (double k, const ReweightScheme reweight=Block)

double	residual (double error) const

double	weight (double error) const

void	print (const std::string &s) const

bool	equals (const Base &expected, double tol=1e-8) const

Public Member Functions inherited from gtsam::noiseModel::mEstimator::Base
	Base (const ReweightScheme reweight=Block)

double	sqrtWeight (double error) const

Vector	weight (const Vector &error) const
	produce a weight vector according to an error vector and the implemented robust function

Vector	sqrtWeight (const Vector &error) const
	square root version of the weight function

void	reweight (Vector &error) const
	reweight block matrices and a vector according to their weight implementation

void	reweight (std::vector< Matrix > &A, Vector &error) const

void	reweight (Matrix &A, Vector &error) const

void	reweight (Matrix &A1, Matrix &A2, Vector &error) const

void	reweight (Matrix &A1, Matrix &A2, Matrix &A3, Vector &error) const

Static Public Member Functions
static shared_ptr	Create (double k, const ReweightScheme reweight=Block)

Public Types
typedef boost::shared_ptr< L2WithDeadZone >	shared_ptr

Public Types inherited from gtsam::noiseModel::mEstimator::Base
enum	ReweightScheme { Scalar, Block }

typedef boost::shared_ptr< Base >	shared_ptr

Protected Attributes
double	k_

Protected Attributes inherited from gtsam::noiseModel::mEstimator::Base
ReweightScheme	reweight_
	the rows can be weighted independently according to the error or uniformly with the norm of the right hand side

Friends
class	boost::serialization::access
	Serialization function.

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

/Users/dellaert/git/gtsam/gtsam/linear/NoiseModel.h
/Users/dellaert/git/gtsam/gtsam/linear/NoiseModel.cpp

Detailed Description

Public Member Functions

Static Public Member Functions

Public Types

Protected Attributes

Friends