Class sym::OrthographicCameraCal

template<typename ScalarType>
class OrthographicCameraCal

Autogenerated C++ implementation of symforce.cam.orthographic_camera_cal.OrthographicCameraCal.

Orthographic camera model with four parameters [fx, fy, cx, cy].

It would be possible to define orthographic cameras with only two parameters [fx, fy] but we keep the [cx, cy] parameters for consistency with the CameraCal interface.

The orthographic camera model can be thought of as a special case of the LinearCameraCal model, where (x,y,z) in the camera frame projects to pixel (x * fx + cx, y * fy + cy). The z-coordinate of the point is ignored in the projection, except that only points with positive z-coordinates are considered valid.

Because this is a noncentral camera model, the camera_ray_from_pixel function is not implemented.

Public Types

using Scalar = ScalarType
using Self = OrthographicCameraCal<Scalar>
using DataVec = Eigen::Matrix<Scalar, 4, 1>

Public Functions

inline OrthographicCameraCal(const Eigen::Matrix<Scalar, 2, 1> &focal_length, const Eigen::Matrix<Scalar, 2, 1> &principal_point)
inline explicit OrthographicCameraCal(const DataVec &data, bool normalize = true)

Construct from data vec

Parameters:

normalize – Project to the manifold on construction. This ensures numerical stability as this constructor is called after each codegen operation. Constructing from a normalized vector may be faster, e.g. with FromStorage.

inline const DataVec &Data() const
inline void ToStorage(Scalar *const vec) const
Eigen::Matrix<Scalar, 2, 1> FocalLength() const

Return the focal length.

Eigen::Matrix<Scalar, 2, 1> PrincipalPoint() const

Return the principal point.

Eigen::Matrix<Scalar, 2, 1> PixelFromCameraPoint(const Eigen::Matrix<Scalar, 3, 1> &point, const Scalar epsilon, Scalar *const is_valid = nullptr) const

Project a 3D point in the camera frame into 2D pixel coordinates.

Returns: pixel: (x, y) coordinate in pixels if valid is_valid: 1 if the operation is within bounds else 0

Eigen::Matrix<Scalar, 2, 1> PixelFromCameraPointWithJacobians(const Eigen::Matrix<Scalar, 3, 1> &point, const Scalar epsilon, Scalar *const is_valid = nullptr, Eigen::Matrix<Scalar, 2, 4> *const pixel_D_cal = nullptr, Eigen::Matrix<Scalar, 2, 3> *const pixel_D_point = nullptr) const

Project a 3D point in the camera frame into 2D pixel coordinates.

Returns: pixel: (x, y) coordinate in pixels if valid is_valid: 1 if the operation is within bounds else 0 pixel_D_cal: Derivative of pixel with respect to intrinsic calibration parameters pixel_D_point: Derivative of pixel with respect to point

inline bool IsApprox(const Self &b, const Scalar tol) const
template<typename ToScalar>
inline OrthographicCameraCal<ToScalar> Cast() const
inline bool operator==(const OrthographicCameraCal &rhs) const
inline bool operator!=(const OrthographicCameraCal &rhs) const

Public Static Functions

static inline constexpr int32_t StorageDim()
static inline OrthographicCameraCal FromStorage(const Scalar *const vec)