Estimating the body portion of CT volumes by matching histograms of visual words.
Johannes FeulnerShaohua Kevin ZhouSascha SeifertAlexander CavallaroJoachim HorneggerDorin ComaniciuPublished in: Medical Imaging: Image Processing (2009)
Keyphrases
- visual words
- bag of words
- keypoints
- image classification
- sift descriptors
- spatial arrangement
- bag of visual words
- visual vocabulary
- visual phrases
- image retrieval
- co occurrence
- image representation
- spatial pyramid matching
- bag of features
- discriminative power
- three dimensional
- object categories
- scene classification
- matching algorithm
- image matching
- visual dictionary
- object retrieval
- image features
- bag of words models
- visual content
- feature space
- human body
- spatial information
- spatial relationships
- matching scheme
- image descriptors
- medical images
- text classification
- vocabulary tree
- image analysis
- multiscale
- soft assignment
- action recognition
- pairwise
- object recognition
- similarity measure
- feature selection