A key challenge for smartphone based visual communication over screen-camera links is
imperfect frame synchronization. The difficulty arises from frame rate diversity and variability …

Hidden screen-camera communication techniques emerge as a new paradigm that embeds
data imperceptibly into regular videos while remaining unobtrusive to human viewers. Three …

Existing code designs for display-camera based visual communication all have an all-or-
nothing behavior, ie, they assume the entire code must be decoded. However, diverse …

Mobile optical wireless has so far been limited to very short ranges for high data rate
systems. It may be feasible to overcome the data rate limitations over large transmission …

Recently a number of systems have been developed to implement and improve the visual
communication over screen-camera links. In this paper we study an opposite problem: how …

The performance of pixelated multiple-input mul-tiple-output optical wireless communication
systems can be impaired by vignetting, which is the gradual fall-off in illumination at the …

Visible light communication (VLC) has been shown to have several advantages over
traditional wireless communication. In this paper, we envision an LED-light-to-smartphone …

As 2D barcodes become more and more popular, their new applications, like mobile
marketing, give a strong motivation for embedding visual information in them. Information …

With the increasing availability of LCD displays and phone cameras in today's environment,
screen-camera communication using dynamic barcode has emerged as a convenient …

We propose a rate adaptation scheme for visual MIMO camera-based communications,
wherein parallel data transmissions from light emitting arrays are received by multiple …