search

udacity / robotics-nanodegree-issues

Public waffleboard to track Robotics Nanodegree Issues
2 stars 0 forks source link

Typo and Improvement - Lesson 16 (11. Inverse Sensor Model) #224

Closed chedanix closed 6 years ago

chedanix commented 6 years ago

Alpha shown in the picture and video is not correct. After reading Probabilistic Robotics by Thrun, I believe alpha is the range within which the cells will be marked as occupied. Therefore the value of alpha should be about the size of a cell.

Also, please add somewhere in the lecture that a sonar rangefinder is used for the Inverse Sensor Model. It confused me for a long time because I thought a laser rangefinder was used and wondered where the "measurement cone" came from.

karimchamaa commented 6 years ago

Thanks for reporting the issues and sorry for the confusion. It's all being fixed in the classroom, please take a look.

chedanix commented 6 years ago

I just took a look. It hasn't been fixed yet, right?

karimchamaa commented 6 years ago

The picture/video hasn't been fixed, just added the description - summary and mentioned that it's a sonar rangefinder sensor