Abstract
Augmented reality (AR) has been widely applied in our lives. An AR tag is usually used and stacked on products for sake of being detected and recognized easily. With the recognized pattern, the AR system thereby can superimpose the corresponding virtual object on the AR tag. The AR tag, however, distort the perception of products. In this study, we proposed a mechanism that integrates the AR tag with digital screen by applying the temporal psycho-visual modulation (TPVM) technique. The new method utilizes the difference between the human-eye perception and the imaging of digital camera to produce an invisible AR tag on the digital screen. The AR tag can be detected by mobile devices but not yet by the human eyes. Based on the concepts of AR and TPVM, the new mechanism is practical in the related AR applications, such as the commercial, entertainment, and protection.
Highlights
Augmented reality (AR) [1,2,3] is a new technology, which puts virtual object on the real-world environment via the help of auxiliary devices, such as mobile phone and camera
The AR tag is a predefined pattern that is linked with the virtual object in the AR system [4,5,6,7,8]
We aim to design an invisible AR tag approach with temporal psycho-visual modulation (TPVM) such that the human eyes can only observe the original media without the AR tag on the digital monitor or projector [12]
Summary
Augmented reality (AR) [1,2,3] is a new technology, which puts virtual object on the real-world environment via the help of auxiliary devices, such as mobile phone and camera. We aim to design an invisible AR tag approach with TPVM such that the human eyes can only observe the original media without the AR tag on the digital monitor or projector [12]. To exhibit the AR visual object, users can capture the video frames from the display monitor via digital camera. The display results by adjusting the grayscale values and brightness are unacceptable for the human eyes. To achieve the imperceptible AR pattern on the video frame, the new scheme aims to adopt the concept of a watermark technology by modifying the frame A corresponding to the tag T. For the frame B, the pixel values are supplemented corresponding to the tag T, for the sake of deriving two superimposed images to achieve the effect as A + B = 2I.
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