163 search results - page 28 / 33 » Recognizing Facial Expressions by Tracking Feature Shapes |
FGR
2000
IEEE
15 years 1 months ago
2000
IEEE
Most eye trackers work well for open eyes. However, blinking is a physiological necessity for humans. Moreover, for applicationssuch as facial expression analysis and driver aware...
101
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IJCV
2000
14 years 9 months ago
2000
Linear parameterized models of optical flow, particularly affine models, have become widespread in image motion analysis. The linear model coefficients are straightforward to estim...
TIP
2002
14 years 9 months ago
2002
Abstract--We propose an approach to accurately detecting twodimensional (2-D) shapes. The cross section of the shape boundary is modeled as a step function. We first derive a one-d...
105
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FLAIRS
2006
14 years 11 months ago
2006
Pervasive surveillance implies the continuous tracking of multiple targets as they move about the monitored region. The tasks to be performed by a surveillance system are expresse...
73
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GW
2005
Springer
15 years 3 months ago
2005
Springer
Abstract. We introduce the use of appearance-based features, and tangent distance or the image distortion model to account for image variability within the hidden Markov model emis...