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Showing posts from May, 2018

Vehicle detection for self driving cars

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Building a data pipeline to detect vehicles on the road I am working on building a data pipeline to detect vehicles from a video feed for a self driving car. Various computer vision techniques are used, including Histogram of Oriented Gradients (HOG), as well has a sliding window approach combined with a machine learned classifier. The general steps for creating this data pipeline are as follows: 1.  Perform a  histogram of oriented gradients  (HOG) feature extraction process on a labeled training set of images. 2.  Use the output of the HOG to train a supervised classifier (SVM, neural network, etc.)  3.  Implement a sliding window technique with windows of various sizes using the trained classifier to search for vehicles in the images using the classifier. 4.  Create a heat map of recurring detections.  Create a overlap threshold to reject false positives.  Also estimate a bounding box based on pixels detected. The data...