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January 19, 2021 16:21
January 19, 2021 16:21
August 4, 2021 09:44
January 25, 2021 17:17

Welcome to the Calibration Challenge!

Your goal is to predict the direction of travel (in camera frame) from provided dashcam video.

  • This repo provides 10 videos. Every video is 1min long and 20 fps.
  • 5 videos are labeled with a 2D array describing the direction of travel at every frame of the video with a pitch and yaw angle in radians.
  • 5 videos are unlabeled. It is your task to generate the labels for them.
  • The example labels are generated using a Neural Network, and the labels were confirmed with a SLAM algorithm.
  • You can estimate the focal length to be 910 pixels.



The devices that run openpilot are not mounted perfectly. The camera is not exactly aligned to the vehicle. There is some pitch and yaw angle between the camera of the device and the vehicle, which can vary between installations. Estimating these angles is essential for accurate control of the vehicle. The best way to start estimating these values is to predict the direction of motion in camera frame. More info can be found in this readme.


Your deliverable is the 5 labels called 5.txt to 9.txt. These labels should be a 2D array that contains the pitch and yaw angles of the direction of travel (in camera frame) of every frame of the respective videos. Zip them up and e-mail it to


We will evaluate your mean squared error against our ground truth labels. Errors for frames where the car speed is less than 4m/s will be ignored. Those are also labeled as NaN in the example labels.

This repo includes an eval script that will give an error score (lower is better). You can use it to test your solutions against the labeled examples. We will use this script to evaluate your solution.


  • Keep the goal and evaluation script in mind, creative solutions are allowed.
  • Look at plots of your solutions before submitting.
  • The dataset is tiny, use caution if using ML.

$500 Prize CLAIMED

The first submission that scores an error under 25% on the unlabeled set, will receive a $500 prize.


The Calibration Challenge!






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