nodes – Yair Shinar

ROS – Simple pub/sub in python

On: October 7, 2019

In: Autonomous Vehicles, Cars, Drones, ROS

The following two functions should be launched in two separate python threads. They show how easy ROS enables to create a pub/sub relationship for transferring messages between nodes. sub.py *import rospy* from std_msgs.msg import String def talker(): pub = rospy.Publisher(‘chatter’, String, queue_size=10) rospy.init_node(‘talker’, anonymous=True) rate = rospy.Rate(10) # 10hz whileContinue Reading

Tensorflow – Graph Freezing

On: October 2, 2019

In: AI, Computer Vision, Deep Machine Learning, NLP, Reinforcement Learning

In prediction/inference mode, variable types are unnecessary, so by freezing the graph we convert all variables in a graph and checkpoint into constants. Also there are structure nodes and operations related to training that we don’t need and can be removed by the freezing process as well. The freezing processContinue Reading