Online Writer Identification With Sparse Coding-Based Descriptors.
Vivek VenugopalSuresh SundaramPublished in: IEEE Trans. Inf. Forensics Secur. (2018)
Keyphrases
- sparse coding
- dictionary learning
- sparse representation
- natural images
- image classification
- spatial pyramid matching
- image representation
- writer identification
- unsupervised learning
- linear combination
- generative model
- visual words
- image patches
- bag of words
- feature space
- keypoints
- dimensionality reduction
- computer vision
- co occurrence
- multiresolution
- feature vectors
- image retrieval
- high dimensional
- pairwise
- multiscale