Abstract: A novel data hiding method for covert communication via the QR code image based on adjustments of the shapes of the QR code modules using image processing techniques is proposed. A module ...

remove-circle Internet Archive's in-browser audio with external links "theater" requires JavaScript to be enabled. It appears your browser does not have it turned on ...

Abstract: Urban functional zone (UFZ) refers to the spatial aggregation of similar human activities in urban areas, and its category information has significant implications for city planning and ...

Can you chip in? As an independent nonprofit, the Internet Archive is fighting for universal access to quality information. We build and maintain all our own systems, but we don’t charge for access, ...

The model was caught on camera heading to a doctor’s appointment on Friday when her car was ticketed by a parking enforcement official, who took a photo of her license plate before issuing a citation.