No enough views #59
Description
im tring to use the example dataset of the link（https://github.com/urbste/OpenImuCameraCalibrator/blob/master/docs/gopro_calibration.md），but while running the script：
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Running camera calibration.
Calibrating camera.
View: 0/1923 initialized for calibration.
View: 100/1923 initialized for calibration.
View: 200/1923 initialized for calibration.
View: 300/1923 initialized for calibration.
View: 400/1923 initialized for calibration.
View: 500/1923 initialized for calibration.
View: 600/1923 initialized for calibration.
View: 700/1923 initialized for calibration.
View: 800/1923 initialized for calibration.
View: 900/1923 initialized for calibration.
View: 1000/1923 initialized for calibration.
View: 1100/1923 initialized for calibration.
View: 1200/1923 initialized for calibration.
View: 1300/1923 initialized for calibration.
View: 1400/1923 initialized for calibration.
View: 1500/1923 initialized for calibration.
View: 1600/1923 initialized for calibration.
View: 1700/1923 initialized for calibration.
View: 1800/1923 initialized for calibration.
View: 1900/1923 initialized for calibration.
Using 11 views for camera calibration.
Not enough views left for proper calibration!
E0322 17:52:06.253038 168781 camera_calibrator.cc:348] Calibration failed.
Focal Length:464.518px Principal Point: 481.411/274.726px.
DIVISION_UNDISTORTION model: Distortion: -1.42674e-06
Finished camera calibration.