نتایج جستجو برای: video observations
تعداد نتایج: 449565 فیلتر نتایج به سال:
High-speed video data were used to analyze the initiation and propagation of 36 needles their associated 306 flickering events observed in a single-stroke positive cloud-to-ground (+CG) flash. The occurred during return-stroke later stage continuing current, within approximate 10 ms after onset +CG return stroke. They initiated near lateral surface predominantly horizontal channel extended almo...
Design protocol analysis is a technique to understand designers’ cognitive processes by analyzing sequences of observations on their behavior. These observations typically use audio, video, and transcript data in order to gain insights into the designer's behavior and the design process. The recent availability of sophisticated sensing technology has made such data highly multimodal, requiring ...
The recent advances in large-scale scene modeling have enabled the automatic 3D reconstruction of landmark sites from crowdsourced photo collections. Here, we address the challenge of leveraging crowdsourced video collections to identify connecting visual observations that enable the alignment and subsequent aggregation, of disjoint 3D models. We denote these connecting image sequences as video...
Introduction: Video games are common cultural issues with great influence in all societies. One of the important cognitive effects of video games is on creating stress on video players. The present research objective was to study different types of stress in players based on video game styles. Methods: A total of 80 players, aged 18 to 30 years, played four types of video games; Ru...
This paper addresses the issue of cell loss and its consequent effect on video quality in a packet video system, and examines possible compensative measures. In the system's enconder, adaptive spectral separation is used to develop a two-layer coding scheme comprising a high priority layer to carry essential video data and a low priority layer with data to enhance the video image. A two-step er...
Aims: The aim of this study was to compare the effect of teach-back method and video clip teaching on the sense of coherence of mothers with children suffering from asthma. Materials & Methods: In this field trial study 75 eligible mothers with children suffering from asthma were selected by convenience sampling method, but were randomly divided into three groups of: video clip group, teach-ba...
Abstract: In several application fields like daily pluviometry data modelling, or motion analysis from image sequences, observations contain two components of different nature. A first part is made with discrete values accounting for some symbolic information and a second part records a continuous (real-valued) measurement. We call such type of observations “mixedstate observations”. This paper...
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