Robust Framework of Single-Frame Face Superresolution Across Head Pose, Facial Expression, and Illumination Variations

Xiang Ma, Huansheng Song, Xueming Qian. Robust Framework of Single-Frame Face Superresolution Across Head Pose, Facial Expression, and Illumination Variations. IEEE T. Human-Machine Systems, 45(2):238-250, 2015. [doi]