Crowd Counting Using Multiple Local Features

Ryan, David, Denman, Simon, Fookes, Clinton B., & Sridharan, Sridha (2009) Crowd Counting Using Multiple Local Features. In Digital Image Computing: Technqiues and Applications, 2009. DICTA '09. Proceedings, Melbourne, Victoria.

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In public venues, crowd size is a key indicator of crowd safety and stability. Crowding levels can be detected using holistic image features, however this requires a large amount of training data to capture the wide variations in crowd distribution. If a crowd counting algorithm is to be deployed across a large number of cameras, such a large and burdensome training requirement is far from ideal. In this paper we propose an approach that uses local features to count the number of people in each foreground blob segment, so that the total crowd estimate is the sum of the group sizes. This results in an approach that is scalable to crowd volumes not seen in the training data, and can be trained on a very small data set. As a local approach is used, the proposed algorithm can easily be used to estimate crowd density throughout different regions of the scene and be used in a multi-camera environment. A unique localised approach to ground truth annotation reduces the required training data is also presented, as a localised approach to crowd counting has different training requirements to a holistic one. Testing on a large pedestrian database compares the proposed technique to existing holistic techniques and demonstrates improved accuracy, and superior performance when test conditions are unseen in the training set, or a minimal training set is used.

Impact and interest:

48 citations in Scopus
33 citations in Web of Science®
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ID Code: 28425
Item Type: Conference Paper
Refereed: Yes
Keywords: Crowd Counting, Crowd Density, Local Features, Foreground Segmentation, Image Processing
Subjects: Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Signal Processing (090609)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Institutes > Information Security Institute
Past > Institutes > Institute for Sustainable Resources
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2009 Please consult author.
Deposited On: 05 Nov 2009 06:02
Last Modified: 29 Feb 2012 14:06

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