Eye detection is very important for automatic face recognition and gaze tracking. In this paper we propose an algorithm for eye detection under active infrared (IR) illumination, which will be integrated into our facial analysis system for cockpit access control. By making use of the bright pupil effect and a sophisticated thresholding method, the pupil candidates can be effectively located. An...

The face is an important part of the identity of a person. Numerous applications benefit from the recent advances in prediction of face attributes, including biometrics (like age, gender, ethnicity) and accessories (eyeglasses, hat). We study the attributes’ relations to other attributes and to face images and propose prediction models for them. We show that handcrafted features can be as good ...

The visible image-based approach has long been considered the most powerful approach to facial emotion estimation. However it is illumination dependency. Under uncontrolled operating conditions, estimation accuracy degrades significantly. In this paper, we focus on integrating visible images with thermal image sequences for facial emotion estimation. First, to address limitations of thermal inf...

The recently proposed optical elements containing semitransparent wavelike films embedded into the transparent material are investigated. Such do not distort a wave transmitted through them. Novel can be fabricated using well-known embossing methods. Their possible applications discussed. holographic used for color holography, augmented reality wearable glasses, as beam combiner head-up display...

Eighty percent of all visual impairment can be prevented or cured by considering the two leading causes in world, i.e., uncorrected refractive error and cataract. Cataracts cause vision loss owing to clouding lens, with age being greatest risk factor. Cataract surgery greatly improve is highly effective. It most commonly performed developed countries. Uncorrected resolved simply wearing proper ...

Worldwide, organic anti-reflective (AR) coated glasses constitute one of the largest areas in industrial market. In our study, analysis stages produced country and offered to eyeglass wearers was examined. Among coating stages, characterizations hard coating, single surface double were investigated. High resolution Scanning Electron Microscope device (FESEM) taken for quality AR coatings glasse...

We propose to enhance the capabilities of the human visual system by performing optical image processing directly on an observed scene. Unlike previous work which additively superimposes imagery on a scene, or completely replaces scene imagery with a manipulated version, we perform all manipulation through the use of a light modulation display to spatially filter incoming light. We demonstrate ...

The microscope is undoubtedly one of the greatest inventions that men have ever made. The use of lenses for spectacles (eyeglasses), distant vision (telescopes), and high magnification (microscopes) required early lens makers accurately to grind lenses with different focal lengths. During the 16th and 17th centuries, Holland and Italy were the principal countries for the construction and use of...