This paper presents a binary matrix code based on QR Code (Quick Response Code), denoted as CQR Code (Colored Quick Response Code), and evaluates the effect of JPEG, JPEG2000 and H.264/AVC compression on the decoding process. The proposed CQR Code has three additional colors (red, green and blue), what enables twice as much storage capacity when compared to the traditional black and white QR Co...

With reference to art. 9 of our Constitution “The Republic promotes development and scientific technical research. Protects the landscape historical artistic heritage nation “and 6 protects linguistic minorities with special rules”, project “Let’s increase reality qr-code” wanted enhance school as a community open territory in which it operates develop skills field active democratic citizenship...

Bu çalışmanın amacı ortaokul matematik öğretmeni adaylarının QR kodları entegre ederek geliştirdikleri etkinliklerin, etkinlik geliştirme
 süreçlerinin incelenmesi ve bu etkinliklerin öğretiminde kullanımı hakkındaki görüşlerinin belirlenmesidir. araştırmada
 nitel araştırma yöntemlerinden durum çalışması kullanılmıştır. Araştırmanın çalışma grubunu ilköğretim öğretmenliği
 progr...

Image Steganography is the art of hiding the secret data into a cover image. The proposed method presents a steganographic method which is based on DWT-Arnold method, where DWT is used to convert the cover image into frequency domain and Arnold method is used for encoding the QR code of secret message. The quality of the image can be maintained by preserving the low frequency coefficients since...

The Quick Response (QR) code service scanned by smartphones allows users to obtain information that would otherwise be difficult for them to access on their own. However, different personality traits and attitudes toward innovations might influence an individual’s acceptance of this technology. A parallel model, in which personality traits predict individuals’ attitudes toward innovation, which...

A family of lines through the origin in Euclidean space is called equiangular if any pair of lines defines the same angle. The problem of estimating the maximum cardinality of such a family in R was extensively studied for the last 70 years. Motivated by a question of Lemmens and Seidel from 1973, in this paper we prove that for every fixed angle θ and sufficiently large n there are at most 2n−...