We collected and annotated 60,000 frames

with rich information, leading to about 900,000 annotated objects.

You can see the the sample annotation on the right

The dataset is released under Creative Commons Attribution 4.0 License and our user agreement.

You can try out our sample data by click the button below. it contains data from one camera with three different time window.

If you are interesting in using our full dataset, please enter your information in the following form and we will send the link to the provided email address. By clicking on the submit button, you agree to our License and our user agreement. If you have any questions regarding the dataset, please contact us at citycam12@gmail.com

All submitted papers or any publicly available text using the CityCam database must cite the following paper:

Shanghang Zhang, Guanhang Wu, João P. Costeira, and José MF MouraUnderstanding Traffic Density from Large-Scale Web Camera Data, In IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2017, pp. 4264-4273.