نتایج جستجو برای: digital screens

تعداد نتایج: 318546  

2000
Hiroshi Ishii

Where the sea meets the land, life has blossomed into a myriad of unique forms in the turbulence of water, sand, and wind. At another seashore between the land of atoms and the sea of bits, we are now facing the challenge of reconciling our dual citizenships in the physical and digital worlds. Windows to the digital world are confined to flat square screens and pixels, or ‘painted bits’. Unfort...

Journal: :Journal of the American Academy of Child and Adolescent Psychiatry 2022

Claims that screen use causes mental health difficulties during the COVID-19 pandemic remain speculative, as most studies rely on cross-sectional, single-child samples. This study aimed to address these limitations through a longitudinal, multilevel family framework enables: 1) examinations of directional relations between children’s and well-being via sibling comparisons; 2) delineation family...

Journal: :Learning, Media and Technology 2023

Contemporary education in Sweden is characterized by two parallel processes: the implementation of digital tools classroom, on one hand, and an increased emphasis brain-based learning, other. Proponents latter strand ‘neuroeducation’ claim that media might have harmful effects learning cognitive development. How do they then deal with school digitalization? By examining popular science books in...

Journal: :Sig. Proc.: Image Comm. 2015
Tyler E. Freeman Lester C. Loschky Bruce C. Hansen

The current study investigated the role of the inter-screen luminance contrast (ISLC) of trial blank screens between target and mask screens in visually masking scenes. Participants performed a scene gist recognition task in which we varied mask strength, blank screen luminance, and stimulus onset asynchrony (SOA). Results showed that the more luminant white, and less luminant black, blank scre...

Journal: :European journal of radiology 2009
James T Dobbins H Page McAdams

Digital tomosynthesis is a radiographic technique that can produce an arbitrary number of section images of a patient from a single pass of the X-ray tube. It utilizes a conventional X-ray tube, a flat-panel detector, a computer-controlled tube mover, and special reconstruction algorithms to produce section images. While it does not have the depth resolution of computed tomography (CT), tomosyn...

2010
Peter-Scott Olech Daniel Cernea Sebastian Thelen Achim Ebert Andreas Kerren Hans Hagen

The concept of digital earth can be described as a large knowledge database for various application areas, such as geography, economic sciences, social sciences, environmental sciences, biology, and urban planning and development. Nevertheless, not only the gathering and compiling of data is important; extracting, mediating and representing the information to the human user is at the core of th...

2014
Takeru MAEHARA Ryo IKEDA Satoshi ONO

Two-dimensional barcodes (2D codes) have become common as an authentification way of e-tickets and e-coupons. However, easy replication by using other mobile phone camera is apprehended. This paper proposes a method for detecting copied 2D code by a semi-fragile digital video watermark which can be destroyed by replication. Compared to digital image watermarking, it is more difficult to copy 2D...

1998
Dhiraj Kacker Jan P. Allebach

With the advent of high resolution (1200+ dpi) desktop printers, the use of conventional 128 128 screens can produce a distinctive periodicity in the printed images. A new method for design of multiple 32 32 screens using Direct Binary Search and training is proposed. The screens are seamless with each other; and a small number of these screens are randomly tiled over the entire support of the ...

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