LPV Calibration Library, provide classes for camera calibration. More...

Data Structures
interface	ILCalib
	This interface provide basic functionalities of the calibration object. More...

interface	ILCalibBoard
	This interface provide functionalities of the calibration board. More...

interface	ILCalibCustom
	This interface provide functionalities of the custom camera model. More...

interface	ILCalibFFD
	This interface provide functionalities of the FFD camera model. More...

interface	ILCalibNPoints
	This interface provide functionalities of the n-points camera model. More...

interface	ILCalibPinHole
	This interface provide functionalities of the pinhole camera model. More...

interface	ILCalibPointPairs
	This interface holds a collection of image and world point pairs. More...

interface	ILCalibRotation
	This interface provide functionalities of the rotation center calibration and alignment task. More...

interface	ILCameraArray
	This interface provide functionalities of camera array generation, calibration and image stitching. More...

interface	ILFlatField
	This interface provide functionalities of flat field calibration and correction. More...

class	LCalibBoard

class	LCalibCustom

class	LCalibFFD

class	LCalibNPoints

class	LCalibPinHole

class	LCalibPointPairs

class	LCalibRotation

class	LCameraArray

class	LFlatField

Enumerations
enum	LPVCalibBoardType { LPVChessBoard = 0 , LPVCircleGrid = 1 , LPVDistCharucoBoardLarge = 2 , LPVDistCharucoBoard = LPVDistCharucoBoardLarge , LPVEMCircleGrid = 4 , LPVDistCharucoBoardMiddle = 6 , LPVDistCharucoBoardSmall = 7 }
	This enumeration represents the type of calibration board. More...

enum	LPVCalibModel { LPVCalibPinHole = 1 , LPVCalibNPoints = 2 , LPVCalibCustom = 3 , LPVCalibFFD = 4 }
	This enumeration represents the calibration model. More...

enum	LPVCalibOutlierRemovalPolicy { LPVCalibOutlierRemovalNone = -1 , LPVCalibOutlierRemovalByPHCalib = 0 , LPVCalibOutlierRemovalByLinearFitting = 1 , LPVCalibOutlierRemovalByParabolicFitting = 2 , LPVCalibOutlierRemovalBy4PolyFitting = 4 }
	This enumeration represents the policy used in LCalibBoard for outlier removal and evaluation. More...

enum	LPVDistortionModel { LPVDistortionRadial = 0 , LPVDistortionRationalRadial = 1 , LPVDistortionThinPrism = 2 , LPVDistortionTangential = 4 , LPVDistortionAll = LPVDistortionRadial + LPVDistortionRationalRadial + LPVDistortionThinPrism + LPVDistortionTangential }
	This enumeration represents the distortion model used in pine-hole camera model, see ILCalibPinHole. You can combine multiple distortion models. More...

enum	LPVFixImageMode { LPVFixImageNone = 0 , LPVFixImageUndistort = 1 , LPVFixImageUndistortAndUntilt = 2 }
	This enumeration represents the mode to control image fixing after calibration. More...

Detailed Description

LPV Calibration Library, provide classes for camera calibration.

This library provides classes for camera calibration. To include the definitions of the library's classes, use the following directive:

Enumeration Type Documentation

This enumeration represents the type of calibration board.

Enumerator
LPVChessBoard	Use the classic chessboard calibration board.
LPVCircleGrid	Use the classic symmetric circle grid calibration board.
LPVDistCharucoBoardLarge	Use the distributed Charuco calibration board of large size, with at most 31 blocks and 12 corners per block horizontally and vertically, totally at most 372 possible x and y positions. Note: It is required to have at least one complete block in the calibration image.
LPVEMCircleGrid	Use the circle grid calibration board with an empty mark indicating its axes' directions.
LPVDistCharucoBoardMiddle	Use the distributed Charuco calibration board of middle size, with at most 11 blocks and 10 corners per block horizontally and vertically, totally at most 110 possible x and y positions. Note: It is required to have at least one complete block in the calibration image.
LPVDistCharucoBoardSmall	Use the distributed Charuco calibration board of middle size, with at most 2 blocks and 8 corners per block horizontally and vertically, totally at most 110 possible x and y positions. Note: It is required to have at least one complete block in the calibration image.

This enumeration represents the calibration model.

Enumerator
LPVCalibPinHole	Pinhole camera model (ILCalibPinHole), represented as intrinsic parameters(cx, cy, fx, fy) and extrinsic parameters(rotation and translation) with distortion.
LPVCalibNPoints	N-Points model (ILCalibNPoints), using rigid/affine/homo transform matrix built from provided point pairs, with no distortion.
LPVCalibCustom	Custom model (ILCalibCustom), using user-defined x/y scale, center and rotation, with no distortion.
LPVCalibFFD	FFD model(ILCalibFFD), using free-form deformation, with any distortion indicated in position mapping.

This enumeration represents the policy used in LCalibBoard for outlier removal and evaluation.

Enumerator
LPVCalibOutlierRemovalNone	No out-lier removal
LPVCalibOutlierRemovalByPHCalib	Try camera calibration using pinhole camera model, using those point pairs. Evaluation error is calculated as the RMS back-projection error of those images points. Out-liers are removed based on the distances between the image points and their corresponding world points' back-projected position.
LPVCalibOutlierRemovalByLinearFitting	Try to do linear fitting per row / column, using those point pairs. Evaluation error is calculated as the RMS fitting error of those fitting result. Out-liers are removed based on the distances between the image points and their fitting positions.
LPVCalibOutlierRemovalByParabolicFitting	Try to do parabolic fitting per row / column, using those point pairs. Evaluation error is calculated as the RMS fitting error of those fitting result. Out-liers are removed based on the distances between the image points and their fitting positions.
LPVCalibOutlierRemovalBy4PolyFitting	Try to do quadratic polynomial fitting per row / column, using those point pairs. Evaluation error is calculated as the RMS fitting error of those fitting result. Out-liers are removed based on the distances between the image points and their fitting positions.

This enumeration represents the distortion model used in pine-hole camera model, see ILCalibPinHole. You can combine multiple distortion models.

Enumerator
LPVDistortionRadial	Default setting, modeling the lens distortion as radial distortion, works for most cameras.
LPVDistortionRationalRadial	Modeling the lens distortion as rational radial distortion, works for "fish-eye" camera or if you want very high precision.
LPVDistortionThinPrism	Modeling the lens distortion as thin prism distortion, works for sensor and lens are not slightly parallel.
LPVDistortionTangential	Modeling the lens distortion as slight tangential distortion, works for sensor and lens are decentering.
LPVDistortionAll	Combination of all distortion models.

This enumeration represents the mode to control image fixing after calibration.

Enumerator
LPVFixImageNone	Do nothing, original image captured by camera is used
LPVFixImageUndistort	Undistorted image is used.
LPVFixImageUndistortAndUntilt	Undistorted, and then camera tilt is fixed.