wroscoe

5 ms·

1.
by wroscoe 10y ago
I updated this post with some of the great feedback from the comments. Also I just ported the algo used by the last DIYRobocar race winner, CompoundEye. Here's that post: https://wroscoe.github.io/compound-eye-autopilot
2.
by wroscoe 10y ago
Well shit. Thanks for pointing that out. I'll revise.
3.
by wroscoe 10y ago
The input values are image arrays 120x160 pixels with 3 channels for red,green,blue. The values range from 0-255 and are not normalized before they are fed into the convolution layer. I found this did not make a difference. The output of th
4.
by wroscoe 10y ago
Tensorflow anounced last week that it will incorporate Keras as its default higher level abstraction. It's a pleasure to use.
5.
by wroscoe 10y ago
Traditional CV approaches are much easier to debug as well. I chose the ML approach with the assumption that it would be easier to build a robust autopilot that would work in many lighting conditions. Actually my short term goal is to get t
6.
by wroscoe 10y ago
Yep, this was an exercise to compete in the DIYRobocars race in West Oakland last weekend. There were 9ish cars with 7 running end to end Tensorflow autopilots and the others using OpenCV/line detection. Open CV one the race.
7.
by wroscoe 10y ago
I'm working on adding the throttle. This is difficult because you need to drive the correct speed and stopping or running off course can mess up the training data. This project was inspired by Otavio's carputer which does predict
8.
by wroscoe 10y ago
The method to avoid overfitting was to use the model with the lowest validation loss, not training loss. I was able to change the track around my house with reasonable success. I think would need many more example turns in the training data
9.
by wroscoe 10y ago
I copied this method of loading datasets from Keras. https://github.com/fchollet/keras/blob/master/keras/datasets... . What's a better alternative.
10.
by wroscoe 10y ago
Donkey runs a client on the Pi and a remote server that runs Keras/Tensorflow.
11.
Help builders build faster... Seeking Full Stack Developer - Berkeley(daduce.com)
1 points by wroscoe 13y ago|0 comments