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Pixel classification based on gray level and local ``busyness''
1Computer Vision Laboratory, Computer Science Center, University of Maryland, College Park, MD 20742.
IEEE Transactions on Pattern Analysis and Machine Intelligence
|August 27, 2011
Summary
Image segmentation accuracy improves by classifying pixels using gray level and neighborhood busyness. Smoothing busyness values or probabilistic classification with relaxation enhances results.
Area of Science:
- Computer Vision
- Image Processing
- Pattern Recognition
Background:
- Image segmentation is crucial for image analysis.
- Pixel classification relies on local features like gray level and neighborhood characteristics.
- Quantifying image 'busyness' (gray level fluctuation) is a key local property.
Purpose of the Study:
- To explore pixel classification methods for image segmentation.
- To evaluate the effectiveness of local image properties as features.
- To investigate techniques for improving classification accuracy.
Main Methods:
- Classifying image pixels based on gray level and neighborhood busyness.
- Applying smoothing to busyness values before classification.
- Exploring probabilistic classification with relaxation techniques.
Main Results:
- Smoothing busyness values significantly improves classification accuracy.
- Probabilistic classification combined with relaxation offers an alternative approach.
- Local image properties are effective features for segmentation.
Conclusions:
- Image segmentation can be effectively achieved by classifying pixels using local properties.
- Preprocessing local features like busyness through smoothing enhances segmentation performance.
- Probabilistic methods offer a viable alternative for refining pixel classifications.
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