Local Subspace Classifier with Transformation Invariance for Appearance-Based Character Recognition in Natural Images.
Keisuke HigaSeiji HottaPublished in: ICDAR (2013)
Keyphrases
- natural images
- character recognition
- machine vision
- feature space
- natural scenes
- higher order
- multiscale
- denoising
- optical character recognition
- object recognition
- scale invariance
- sparse coding
- input image
- handwritten characters
- hand written
- training set
- image patches
- feature selection
- power spectrum
- license plate
- natural image patches
- receptive fields
- scale invariant
- object detection
- learning algorithm
- printed characters
- image processing
- high dimensional data
- principal component analysis
- chinese characters
- low dimensional
- feature extraction
- feature set
- dimensionality reduction
- image statistics
- prior models
- computer vision
- natural image statistics