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Robust Face Hallucination Algorithm Using Motion Blur Embedded Nearest Proximate Patch Representation
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AI
DOI：10.1109/TIM.2022.3223141.png)
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摘要
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Face hallucination (FH) techniques have received a lot of attention in recent years for generating high-resolution (HR) face images from captured low-resolution (LR), noisy, and blurry images. However, existing FH techniques are incapable of dealing with motion blur, which is commonly introduced in captured images due to camera defocussing and other factors. Therefore, to make the FH process more resistant to motion blur, in this article, we present a novel learning-based FH algorithm called Motion Blur Embedded Nearest Proximate Patch Representation (MBENPPR). The MBENPPR algorithm begins by estimating the motion blur kernel from a motion-blurred LR test face. The estimated kernel is then embedded in training images to make them compatible with test images. It assists in reducing the effect of motion blur in the reconstruction process. Furthermore, the nearest proximate patches are selected from the training space to represent the test image patches as a weighted linear combination of selected patches. It facilitates the proposed algorithm in preserving sharp edges and texture information in the resulting faces. The results of simulations on standard datasets and locally captured real-life faces show that the MBENPPR algorithm outperforms the compared existing algorithms.
Keyword:
Faces
Training
Face recognition
Kernel
Image reconstruction
Image resolution
Generative adversarial networks
Face hallucination (FH)
motion-blur
position-patch
proximate patch
super-resolution (SR)
期刊
IF:
5.9
论文数:
2.0W
被引数:
5.8W
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