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Visual words of Bag-of-Visual-Words (BoVW) framework are independent each other, which results in not only discarding spatial orders between visual words but also lacking semantic information. This study is inspired by word embeddings that a similar embedding procedure is applied to a large number of visual words. By this way, the corresponding embedding vectors of the visual words can be formulated...
Iris recognition systems using iris images captured in visible light have several advantages compared to using near infrared (NIR) images, and draw attention from biometrics researchers. The acquisition of color iris image does not ask for special cameras, and reserves the color information of iris. The color information can be used as an important clue for iris classification which improves performance...
Eye detection is a hot research topic in computer vision for its wide applications in human-computer interaction, face and iris recognition, etc. However, robust eye detection is still a grand challenge due to the numerous appearance variations of eye images in real-world applications. In this paper, we present a novel local surface curvature analysis method to deal with this problem. Firstly, by...
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