Search results for "vision"
showing 10 items of 5066 documents
Measuring trunk orientation with a CMOS camera: feasibility and accuracy.
2007
International audience; The purpose of this study was to develop and validate a new tool to objectively quantify trunk orientation at the bedside, especially dedicated to the measurement of the lateropulsion in acute and subacute stroke patients. We developed software to analyze 2D movement with a CMOS camera (Logitech Quickcam Pro 4000) and to calculate the orientation of a segment defined by two color markers. First, the accuracy, reproducibility and noise when measuring segment orientations were evaluated with the CMOS camera placed in different positions, and second trunk orientation was measured in static and in dynamic conditions both with a CMOS camera and with a gold standard 3D vid…
Did you hear? Auditory prospective memory cues are more beneficial for autistic than for non-autistic children and adolescents
2021
Item does not contain fulltext Background: The transition from primary to secondary school is particularly difficult for autistic children, a transition underpinned by an increase in prospective memory (PM) demands. Aims: To better understand PM in autistic children of the relevant age range and its underlying processes, the current study investigated the impact of cue salience (distinctiveness) on PM in autistic and non-autistic children and adolescents. The study was unique in manipulating the visual and auditory salience of PM cues. Salient cues are assumed to put lower demands on executive control resources as compared to cues that blend in with the ongoing activity. Methods and procedu…
Optimizing Query Perturbations to Enhance Shape Retrieval
2020
3D Shape retrieval algorithms use shape descriptors to identify shapes in a database that are the most similar to a given key shape, called the query. Many shape descriptors are known but none is perfect. Therefore, the common approach in building 3D Shape retrieval tools is to combine several descriptors with some fusion rule. This article proposes an orthogonal approach. The query is improved with a Genetic Algorithm. The latter makes evolve a population of perturbed copies of the query, called clones. The best clone is the closest to its closest shapes in the database, for a given shape descriptor. Experimental results show that improving the query also improves the precision and complet…
An Efficient Cooperative Smearing Technique for Degraded Historical Documents Images Segmentation
2020
Segmentation is one of the critical steps in historical document image analysis systems that determines the quality of the search, understanding, recognition and interpretation processes. It allows isolating the objects to be considered and separating the regions of interest (paragraphs, lines, words and characters) from other entities (figures, graphs, tables, etc.). This stage follows the thresholding, which aims to improve the quality of the document and to extract its background from its foreground, also for detecting and correcting the skew that leads to redress the document. Here, a hybrid method is proposed in order to locate words and characters in both handwritten and printed docu…
Mitigation and boosting as face-protection functions
2020
Abstract Mitigation is undeniably and necessarily linked with the social aspect of communication. No speaker mitigates an utterance without a goal in mind, which makes mitigation a means to an end and not an end in itself. Even though the various definitions of mitigation do not assign the same aims to this phenomenon, the social impact it has on the participants in the communication is generally agreed upon throughout the literature (Fraser, 1980; Meyer-Hermann, 1988; Bazzanella et al., 1991; Briz, 1998, 2003; Caffi, 1999; Thaler, 2012; Briz and Albelda, 2013; Schneider, 2013; Albelda et al., 2014; Albelda, 2016, 2018). In this paper, the mitigating and boosting strategies in relationship …
Erfolgreiche Supervision in der Psychotherapieausbildung
2019
Zusammenfassung. Theoretischer Hintergrund: Supervision fand als Forschungsgegenstand in der Kognitiven Verhaltenstherapie vergleichsweise wenig Beachtung. Fragestellung: Ziel der explorativen Studie war es, Voraussetzungen und Auswirkungen erfolgreicher Supervision zu erheben. Methode: Elf Supervisor_innen und zehn Supervisand_innen des Weiterbildungsstudiengangs Psychologische Psychotherapie (Verhaltenstherapie) wurden mittels halbstrukturierter Leitfadeninterviews befragt. Die Auswertung erfolgte anhand der qualitativen Inhaltsanalyse nach Mayring. Ergebnisse: Es wurden Personenmerkmale (z. B. Kritikfähigkeit, Offenheit, Strukturiertheit), eine tragfähige Supervisionsbeziehung (z. B. ve…
Ficciones inmunitarias. Sobre la lógica de la inmunidad en la cultura contemporánea
2018
This article develops the concept of “immunitarian fiction” taking as paradigmatic examples epidemics and zombie narratives, which share the idea of contagion as the main matrix of their narrative. The article tries to address the following question: in what way do these fictions, and other similar ones, participate in the imaginary of immunity and, at the same time, show some of their internal contradictions? For this, the text reflects on a set of cultural products of mass diffusion (novels, television series, cinematographic works). We analyze, in the first place, how these fictions highlight the fears and social anxieties linked to the tensions of the “immune paradigm” and represent the…
On the Objective Evaluation of Motion Cueing in Vehicle Simulations
2021
Motion-based simulators are used for a variety of applications, such as research, education, entertainment and training. In fact, motion cues are required to achieve the highest regulatory certifications in training vehicle simulators. Nonetheless, the reproduction of self-motion cues presents technological and economic limitations that are not present in the generation of audiovisual cues. For this reason, the generated motion does not generally match the expected one. Therefore, it is necessary to define means to assess the suitability/fidelity of the generated motion cues. After more than 50 years of motion-based vehicle simulation, no mechanism has been universally accepted as the stand…
Developing a framework for using structure-from-motion techniques for road distress applications
2020
On Urban road networks, road agencies need to quickly identify road pavement distresses in order to identify appropriate maintenance and rehabilitation strategies. This is integral as agencies are plagued with financial and time constraint issues. There have been several attempts over the last few years to identify new solutions and techniques to solve these issues. Several of these have shown merit and accuracy in identifying distresses. However, the techniques in many instances are not correlated to available distress identification standards. One of the considered techniques is the use of Structure-from-Motion, which tries to recreate 3D distress models for identification and analysis. T…
Expert In-depth Interview on Development and Efficiency of “RIGA International Airport” Reflecting Factors
2016
Abstract The aim of the paper is to identify development ways and effectiveness of RIGA International Airport. Theoretical evidence was examined and expert in-depth interview was carried out to explore the main circumstances affecting RIGA International Airport functioning. Findings of the study show that there are positive tendencies in the field of airport efficiency and development, but improvement is needed primarily for coordinating visions and resources managed by both state and airport administration bodies.