Dashcam Tilt

Learn how to train AI to grade the quality of a dashcam’s tilt angle

Dashcam Tilt example

Well-mounted dashcams are critical for the Hivemapper community to generate high-quality map data. Based on input from a decentralized community of AI Trainers, contributors with better tilt angles receive a better reputation score, resulting in better rewards. Contributors with poor-quality tilt angles receive worse rewards, and in extreme cases, receive no rewards at all.

In this game, you must answer only one question: did the driver angle their dashcam correctly?

Game Contents

You will be presented with the following information:

1. A sample image from the dashcam being rated

2. An overlay of lines showing what is and isn’t allowed

   1. The top line will show the highest point the ground can be visible in the image

   2. The bottom line will show the lowest point where sky can be visible in the image

You have three choices:

1. “Good” for a dashcam that is angled correctly

2. “Bad” for a dashcam that is angled incorrectly

3. “Not sure” if you don’t know how to answer for this dashcam

Please remember: you are only grading the tilt angle of the dashcam. You are not grading the quality of the image, the weather, or if there are objects inside the vehicle or part of the vehicle that are blocking the dashcam. You should select “Good” as long as the dashcam is tilted correctly, even if the windshield is covered in rain or the road features are difficult to see due to glare from the sun.

You are never penalized (or rewarded) for selecting “not sure.” Do not hesitate to use it, to help ensure that contributors are graded fairly for the quality of their mount.

What Makes a Dashcam Tilt Good?

• ✅ There is not too much ground visible in the image
• ✅ The horizon is roughly in the center of the image (not including trees, mountains, buildings, etc.)
• ✅ There is not too much sky visible in the image

Let’s take a look at some examples of good Dashcam Tilt imagery:

Good Dashcam Tilt Examples

✅ Forward-facing dashcam with a level horizon

✅ Forward-facing dashcam that has almost too much ground but is still within the lines

✅Side-facing dashcam with a level horizon

✅Forward-facing dashcam with level horizon, even if trees or mountains are above the top line

What Makes a Dashcam Tilt Bad?

• ❌ There is too much ground visible in the image
• ❌ The horizon is too high or too low in the image (not including trees, mountains, buildings, etc.)
• ❌ There is too much sky visible in the image

Let’s take a look at some examples of bad Tilt Angle imagery:

Bad Dashcam Tilt Examples

❌ Dashcam with ground angled above the top line

❌ Dashcam with too much sky (Sky is visible below the low line)

What Doesn’t Make a Dashcam Tilt Bad?

Do not select “bad” for an image just because one of the following is true. The Dashcam Tilt may be bad for other reasons, but these alone are not enough to grade a mount as bad:

• Trees or mountains over the horizon line

• Dashcam facing the side instead of the front

• Dashcam being blocked by an object within or attached to the vehicle

• Raindrops, glare, or other temporary objects visible by the dashcam

• Trees, buildings, or other objects directly outside the vehicle that are close to the dashcam

✅Dashcam facing the side instead of the front