Monocular 3D facial shape reconstruction from a single 2D image with coupled-dictionary learning and sparse coding.
Pengfei DouYuhang WuShishir K. ShahIoannis A. KakadiarisPublished in: Pattern Recognit. (2018)
Keyphrases
- dictionary learning
- sparse coding
- image classification
- image representation
- sparse representation
- natural images
- single image super resolution
- input image
- multiscale
- single image
- image features
- image data
- group sparsity
- face recognition
- sparse codes
- image retrieval
- linear combination
- visual words
- test images
- bag of words
- object category recognition
- face images
- facial expressions
- image segmentation
- image patches
- feature space
- generative model
- lighting conditions
- data sets
- image regions
- unsupervised learning
- cast shadows
- similarity measure
- machine learning