发明名称 |
Methods and system for automated in-field hierarchical training of a vehicle detection system |
摘要 |
Disclosed are methods and systems for detecting one or more vehicles in video captured from a deployed video camera directed at a parking region. According to one exemplary embodiment, disclosed is a method of training a deployed classifier associated with the video camera, where a generic classifier is initially used to obtain high confidence training samples from the video camera, the high confidence training samples subsequently used to train the deployed classifier. |
申请公布号 |
US8971581(B2) |
申请公布日期 |
2015.03.03 |
申请号 |
US201313836310 |
申请日期 |
2013.03.15 |
申请人 |
Xerox Corporation |
发明人 |
Wu Wencheng;Bulan Orhan;Wang Yao Rong;Loce Robert P. |
分类号 |
G06K9/00;G08G1/14;G06K9/62;B60Q1/48 |
主分类号 |
G06K9/00 |
代理机构 |
Fay Sharpe LLP |
代理人 |
Fay Sharpe LLP |
主权项 |
1. A computer implemented method of detecting a vehicle in video, the video acquired from a fixed parking occupancy video camera including a field of view associated with a parking region, the method comprising:
a) capturing video from the fixed parking occupancy video camera; and b) performing a sliding window-based space search for a vehicle within the captured video, the sliding window-based space search extracting one or more features associated with each of a plurality of windows and accessing an operatively associated second classifier to classify each window as including a vehicle or not including a vehicle, wherein the second classifier is trained using high confidence training samples acquired from samples of video obtained from the fixed parking occupancy video camera operatively associated with a first classifier, the samples including positive (vehicle) samples of video and negative (non-vehicle) samples of video, and wherein the first classifier is trained with video captured from another fixed parking occupancy video camera including a different field of view associated with another parking region. |
地址 |
Norwalk CT US |