srlake

Joined 14 years ago

Karma
266
Submissions
102
Member since
May 23
stephenlake.ca - co-founder of Thalmic Labs (YC W2013)
View on Hacker News

Recent submissions

Comment · 10 years ago
Comment · 10 years ago
It's been a few years since studying in this area, but one approach we used to use for modelling and control of manipulators (mostly industrial robotic arms) was Screw Theory.

Here's a recent paper using one of these approaches: http://www.intechopen.com/books/international_journal_of_adv...

One approach that could be used for a system like Big Dog would be a feed-forward control loop with kinematic/dynamic modelling of the robot. These approaches use knowledge of the system dynamics to predict the output based on changing inputs or disturbances.

Comment · 12 years ago
The eye is not focusing on that depth. The light coming out of the lens or LCD would be collimated / diffracted to form an image on the retina that appears to originate from a specific distance (or in this case, many different distances, multiplexed together).

Just like with Google Glass, where the image appears to be at a distance and your eyes do not focus on the actual screen.

Comment · 12 years ago
What were you hoping to do with the raw EMG data?
Comment · 12 years ago
Exact same hardware. Difference is software only.

Live from the official Hacker News API

A modern reader for Hacker News · SvelteKit + Skeleton