Eyes closeness detection from still images with multi-scale histograms of principal oriented gradients.
Fengyi SongXiaoyang TanXue LiuSongcan ChenPublished in: Pattern Recognit. (2014)
Keyphrases
- multiscale
- detection rate
- edge detection
- image database
- image features
- input image
- image registration
- image retrieval
- image classification
- image data
- three dimensional
- image analysis
- detection algorithm
- segmentation method
- image collections
- test images
- object recognition
- gradient information
- similarity measure
- region detection
- multiple scales
- image gradient
- complex background
- image regions
- face detection
- detection method
- lighting conditions
- bounding box
- low contrast
- image descriptors
- keypoints
- false positives
- filtered images
- image representation