Search results for "Percept"
showing 10 items of 3839 documents
Anchoring by Imitation Learning in Conceptual Spaces
2005
In order to have a robotic system able to effectively learn by imitation, and not merely reproduce the movements of a human teacher, the system should have the capabilities of deeply understanding the perceived actions to be imitated. This paper deals with the development of a cognitive architecture for learning by imitation in which a rich conceptual representation of the observed actions is built. The purpose of the following discussion is to show how the same conceptual representation can be used both in a bottom-up approach, in order to learn sequences of actions by imitation learning paradigm, and in a top-down approach, in order to anchor the symbolical representations to the perceptu…
Splitting criterion for hierarchical motion estimation based on perceptual coding
1998
A new entropy-constrained motion estimation scheme using variable-size block matching is proposed. It is known that fixed-size block matching as used in most video codec standards is improved by using a multiresolution or multigrid approach. In this work, it is shown that further improvement is possible in terms of both the final bit rate achieved and the robustness of the predicted motion field if perceptual coding is taken into account in the motion estimation phase. The proposed scheme is compared against other variable- and fixed-size block matching algorithms.
What Is a ‘Digital Family’?
2019
This chapter introduces the concept of the digital family. Digital families are one form of distributed extended families, consisting of related individuals living in one or more households who utilize at least basic level information and communication technologies and social media applications to stay connected and maintain a sense of unity. The strengths and limitations of the notion are discussed, assessing its usefulness vis-a-vis neighbouring concepts. The chapter ends with the discussion of the perception of family in the three countries studied, Finland, Italy and Slovenia, and of the differences found between them.
Formidable Bracelet, Beautiful Lantern
2013
We live in an experience economy. The more saturated the global market becomes with products offering the same functions, services and quality, the more companies are wanting to appeal to the intangible needs and desires of consumers. To achieve this, designers and researchers are turning inwards to investigate the psychological factors affecting peoples' relationships and reactions towards design properties. For this reason, design semantics studies on user experience have been advancing all the time. Much emphasis has been placed on visual product experience, as well as the relationship between brand perception and user experience. These are important steps, which are referred to in this …
Spatio-Temporal Saliency Detection in Dynamic Scenes using Local Binary Patterns
2014
International audience; Visual saliency detection is an important step in many computer vision applications, since it reduces further processing steps to regions of interest. Saliency detection in still images is a well-studied topic. However, videos scenes contain more information than static images, and this additional temporal information is an important aspect of human perception. Therefore, it is necessary to include motion information in order to obtain spatio-temporal saliency map for a dynamic scene. In this paper, we introduce a new spatio-temporal saliency detection method for dynamic scenes based on dynamic textures computed with local binary patterns. In particular, we extract l…
Perceptually weighted optical flow for motion-based segmentation in MPEG-4 paradigm
2000
In the MPEG-4 paradigm, the sequence must be described in terms of meaningful objects. This meaningful, high-level representation should emerge from low-level primitives such as optical flow and prediction error which are the basic elements of previous-generation video coders. The accuracy of the high-level models strongly depends on the robustness of the primitives used. It is shown how perceptual weighting in optical flow computation gives rise to better motion estimates which consistently improve motion-based segmentation compared to equivalent unweighted motion estimates.
Public Perception of Costs Associated with Major Sporting Events
2014
Sporting events have become first-order promotional tools of large cities, allowing them to reach levels of dissemination economically unaffordable as conventional advertising. The social impact of the event on residents is very important, given their role as main actors. Perceptions of the residents of the cities that host sporting events have been extensively studied, although in this case a singular point of comparison to study the perception of the costs of organizing and holding the sporting event is provided. The purpose of this chapter is to assess the perception of the citizens of Valencia (Spain) on specific aspects of three sports events held in the city in 2012: European Grand Pr…
Key drivers of internet banking services use
2009
PurposeThe purpose of this paper is to analyse the determinants of internet banking use, paying special attention to the role of product involvement, perceived risk and trust.Design/methodology/approachThe impact of trust, perceived risks, product involvement and TAM beliefs (ease of use and usefulness) on internet banking adoption is tested through structural equation modelling techniques. The sample consists of 511 Spanish internet banking services users and the data are collected through an internet survey. Risk is measured as a formative construct.FindingsData analysis shows that TAM beliefs and perceived risks (security, privacy, performance and social) have a direct influence on e‐ban…
Tween Girls' Perception of Gender Roles and Gender Identities
2011
PurposeThe present study aims to examine girls' perception of gender roles and gender identities in Hong Kong.Design/methodology/approachA total of 16 girls aged 10 to 12 were asked to take pictures from the media that could illustrate “what girls or women should or should not be; and what girls or women should or should not do”. Qualitative interviews were conducted.FindingsAnalysis of interviews and images captured found that tween girls' perceived gender roles for females were based on a mixture of traditional and contemporary role models. Girls in Hong Kong demonstrated conservatism in sexuality. Sexy outlook and pre‐marital sexual relations were considered inappropriate. Tween girls sh…
Fear of COVID-19, Risk Perception and Stress Level in Polish Nurses During COVID-19 Outbreak
2021
Introduction. The outbreak of COVID-19 disease causes severe stress in health care workers, especially nurses.Nurses are at high risk of contracting the disease, as well as an increased risk of developing mental health symptomssuch as fear, anxiety and work-related stress.Aim. The aim of the study was to determine the relationship between fear of COVID-19, risk perception, perceivedthreat and stress in Polish nurses during COVID-19 outbreak.Material and Methods. 106 nurses participated in the study. Perceived Stress Scale (PSS-10), Fear of COVID-19 Scale(FOC-6), Risk of Contracting COVID-19 Scale and Perceived Threat of COVID-19 Scale were used in the study.Results. It has been shown that p…