THE VIDEO SHELF · sensor fusion
Sensor Fusion on Android Devices: A Revolution in Motion Processing
David Sachs of InvenSense explains how gyroscopes, accelerometers and compasses work on their own and together, demonstrated on a modified Android handset. He covers sensor fusion algorithms and why rotation math such as Euler angles matters.
Why HN readers recommended it
HN recommends it as the definitive talk on mobile motion sensing, including why integrating acceleration twice drifts so badly.
This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.
Video & recommendation details
- Creator / channel
- Google TechTalks
- Topic
- sensor fusion
- Format
- talk
- Level
- advanced
- HN recommenders in dataset
- 2
- HN mentions in dataset
- 4
- Recommendation years in dataset
- 2012–2026
These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.
From the original HN conversations
Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.
When this topic comes up, I'm always happy to share this incredible lecture from many many years ago about dead reckoning and how you _cannot_ integrate acceleration twice: [VIDEO] (the whole video is incredible, but this is the magical bit)
gregsadetsky on Hacker News · 2026-07
In Show HN: Physically accurate black hole you can put in your roomThen you would be surprised how bad they are. A great talk on using mobile sensors is here: [VIDEO] Long story short, expect something like 20 cm/s of position drift trying to do dead reckoning off of mobile sensors.
cpitman on Hacker News · 2015-03
In Darpa to re-invent GPS navigation without the use of satellites
Summaries, classifications and recommendation records are from the HackerTube source dataset. Read about this library and its limitations.