Unit 06

Vision: Where Is That?

By the end of this unit you can aim a mechanism at a target without blocking the loop, say how far a stale frame throws a tag, and defend leaving vision corrections off until proven.

Robotics Programming · members' unit

Vision: Where Is That? is behind a locked door

Units in Robotics Programming are for people taking the course. Getting in takes a link or a key — signing in on its own doesn't do it.

What's in this unit · 17 min read

  1. One subsystem owns the camera
  2. Two jobs, one camera
  3. What a sighting tells you
  4. null means three different things, on purpose
  5. Do not wait for a good reading
  6. Why a sighting is kept on the field
  7. What makes a stored sighting wrong
  8. How exact is a target?
  9. The arm does not pivot where the robot does
  10. Subtract the pivot first
  11. Where the pivot’s numbers live, and how often you read them
  12. The frame is already old
  13. How wrong, exactly
  14. Keeping the poses you will need
  15. The same detections, the other direction
  16. A tag that moved reads exactly as confidently
  17. Off until proven
  18. A policy that says why it refused
  19. One more conversion, at one more edge

32 quick checkscode exercises

1 Sign in

With your school Google account. This is how your work reaches the gradebook — it doesn't open the unit by itself.

2 Get in

Open the class link your teacher posted — that's the usual way, and it enrolls you on the spot. Or paste an access key if you were handed one.

A key unlocks this browser and keeps your progress here; signing in keeps it with you across devices. Either way the key itself is only ever checked as a hash. Manage all of this on your account, read what signing in stores, or go back to Robotics Programming.

Sources