Improving Pain Recognition Through Better Utilisation of Temporal Information
Lucey, Patrick J., Howlett, Jessica M., Cohn, Jeffrey, Lucey, Simon, Sridharan, Sridha, & Ambadar, Zara (2008) Improving Pain Recognition Through Better Utilisation of Temporal Information. In Goecke, Roland, Lucey, Patrick J., & Lucey, Simon (Eds.) International Conference on Auditory-Visual Speech Processing, 26-29 September 2008, Tangalooma, Australia.
Automatically recognizing pain from video is a very useful application as it has the potential to alert carers to patients that are in discomfort who would otherwise not be able to communicate such emotion (i.e young children, patients in postoperative care etc.). In previous work , a “pain-no pain” system was developed which used an AAM-SVM approach to good effect. However, as with any task involving a large amount of video data, there are memory constraints that need to be adhered to and in the previous work this was compressing the temporal signal using K-means clustering in the training phase. In visual speech recognition, it is well known that the dynamics of the signal play a vital role in recognition. As pain recognition is very similar to the task of visual speech recognition (i.e. recognising visual facial actions), it is our belief that compressing the temporal signal reduces the likelihood of accurately recognising pain. In this paper, we show that by compressing the spatial signal instead of the temporal signal, we achieve better pain recognition. Our results show the importance of the temporal signal in recognizing pain, however, we do highlight some problems associated with doing this due to the randomness of a patient's facial actions.
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|Item Type:||Conference Paper|
|Additional Information:||For more information, please refer to the conference's website (see hypertext link) or contact the author.|
|Subjects:||Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100) > Computer Vision (080104)|
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
|Copyright Owner:||Copyright 2008 (please consult author)|
|Deposited On:||20 Oct 2008|
|Last Modified:||29 Feb 2012 23:46|
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