File: ros_foxglove_msgs/CameraCalibration.msg
Raw Message Definition
# foxglove_msgs/msg/CameraCalibration
# Camera calibration parameters
# Generated by https://github.com/foxglove/schemas
# Timestamp of calibration data
builtin_interfaces/Time timestamp
# Frame of reference for the camera. The origin of the frame is the optical center of the camera. +x points to the right in the image, +y points down, and +z points into the plane of the image.
string frame_id
# Image width
uint32 width
# Image height
uint32 height
# Name of distortion model
#
# Supported parameters: `plumb_bob` (k1, k2, p1, p2, k3) and `rational_polynomial` (k1, k2, p1, p2, k3, k4, k5, k6). Distortion models are based on [OpenCV's](https://docs.opencv.org/2.4/modules/calib3d/doc/camera_calibration_and_3d_reconstruction.html) [pinhole camera model](https://en.wikipedia.org/wiki/Distortion_%28optics%29#Software_correction). This is the same [implementation used by ROS](http://docs.ros.org/en/diamondback/api/image_geometry/html/c++/pinhole__camera__model_8cpp_source.html)
string distortion_model
# Distortion parameters
float64[] d
# Intrinsic camera matrix (3x3 row-major matrix)
#
# A 3x3 row-major matrix for the raw (distorted) image.
#
# Projects 3D points in the camera coordinate frame to 2D pixel coordinates using the focal lengths (fx, fy) and principal point (cx, cy).
#
# ```
# [fx 0 cx]
# K = [ 0 fy cy]
# [ 0 0 1]
# ```
float64[9] k
# Rectification matrix (stereo cameras only, 3x3 row-major matrix)
#
# A rotation matrix aligning the camera coordinate system to the ideal stereo image plane so that epipolar lines in both stereo images are parallel.
float64[9] r
# Projection/camera matrix (3x4 row-major matrix)
#
# ```
# [fx' 0 cx' Tx]
# P = [ 0 fy' cy' Ty]
# [ 0 0 1 0]
# ```
#
# By convention, this matrix specifies the intrinsic (camera) matrix of the processed (rectified) image. That is, the left 3x3 portion is the normal camera intrinsic matrix for the rectified image.
#
# It projects 3D points in the camera coordinate frame to 2D pixel coordinates using the focal lengths (fx', fy') and principal point (cx', cy') - these may differ from the values in K.
#
# For monocular cameras, Tx = Ty = 0. Normally, monocular cameras will also have R = the identity and P[1:3,1:3] = K.
#
# For a stereo pair, the fourth column [Tx Ty 0]' is related to the position of the optical center of the second camera in the first camera's frame. We assume Tz = 0 so both cameras are in the same stereo image plane. The first camera always has Tx = Ty = 0. For the right (second) camera of a horizontal stereo pair, Ty = 0 and Tx = -fx' * B, where B is the baseline between the cameras.
#
# Given a 3D point [X Y Z]', the projection (x, y) of the point onto the rectified image is given by:
#
# ```
# [u v w]' = P * [X Y Z 1]'
# x = u / w
# y = v / w
# ```
#
# This holds for both images of a stereo pair.
float64[12] p
Compact Message Definition
builtin_interfaces/Time timestamp
string frame_id
uint32 width
uint32 height
string distortion_model
float64[] d
float64[9] k
float64[9] r
float64[12] p