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Tytuł:
On augmenting the visual slam with direct orientation measurement using the 5-point algorithm
Autorzy:
Schmidt, A.
Kraft, A.
Fularz, M.
Domagała, Z.
Powiązania:
https://bibliotekanauki.pl/articles/384310.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
visual SLAM
visual odometry
Opis:
This paper presents the attempt to merge two paradigms of the visual robot navigation: Visual Simultaneous Localization and Mapping (VSLAM) and Visual Odometry (VO). The VSLAM was augmented with the direct, visual measurement of the robot orientation change using the 5-point algorithm. The extended movement model of the robot was proposed and additional measurements were introduced to the SLAM system. The efficiency of the 5-point and 8-point algorithms was compared. The augmented system was compared with the state of the art VSLAM solution and the proposed modification allowed to reduce the tracking error by over 30%.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2013, 7, 1; 5-10
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Visual Literacy as a Dimension of the Young Generation’s Cultural Capital – Comparative Research
Autorzy:
Wieczorek-Tomaszewska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2046856.pdf
Data publikacji:
2021-06-24
Wydawca:
Wydawnictwo Uniwersytetu Śląskiego
Tematy:
umiejętności wizualne
kompetencje wizualne
komunikacja wizualna
kultura wizualna
visual literacy
visual competence
visual communication
visual culture
visual learning environment
Opis:
The subject of the research presented in the article, related to visual literacy, is to determine the scope and quality of the phenomenon of communication in the area of symbolic communication. Individual dispositions of information users were taken into account, creating a set of behaviors and reactions, views and concepts, personal beliefs and inclinations that determine the way of life and thinking – the so-called Habitus by Pierre Bourdieu. The aim was to create the characteristics of the examined representatives of the young generation and to determine their predispositions to symbolize (search for references). The research was carried out on two comparative groups of research participants from Poland and Italy in order to examine the quality of contemporary visual communication and the predisposition of information users to visualization, and their adaptation to the visual form of expression. The research meets the educational demand for a modern form of education, taking into account the modern informational live environment and media immersion in the visual reality of the participants of the education process.
Przedmiotem badań przedstawionych w artykule, związanych z visual literacy, jest określenie zakresu i jakości zjawiska porozumiewania się w obszarze komunikacji symbolicznej. Uwzględniono indywidualne dyspozycje użytkowników informacji, tworząc zbiór zachowań i reakcji, poglądów i koncepcji, osobistych przekonań i skłonności, które determinują sposób życia i myślenia – tzw. Habitus wg Pierre’a Bourdieu. Celem było stworzenie charakterystyki badanych przedstawicieli młodego pokolenia i określenie ich predyspozycji do symbolizowania (poszukiwania odniesień). Badania przeprowadzone zostały na dwóch porównawczych populacjach z Polski i Włoch w celu uzyskania odpowiedzi na pytanie o jakość współczesnej komunikacji wizualnej i predyspozycje użytkowników informacji do wizualizacji oraz o ich kondycję adaptacyjną do wizualnej formy ekspresji. Badania wychodzą naprzeciw zapotrzebowaniu edukacyjnemu na nowoczesną formę edukacji, uwzględniającą współczesne informacyjne środowisko życia i medialne zanurzenie w wizualnej rzeczywistości uczestników procesu edukacji.
Źródło:
International Journal of Research in E-learning IJREL; 2021, 7, 1; 1-30
2451-2583
2543-6155
Pojawia się w:
International Journal of Research in E-learning IJREL
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Visual features of cartographic representation in map perceptron
Autorzy:
Żyszkowska, W.
Powiązania:
https://bibliotekanauki.pl/articles/92472.pdf
Data publikacji:
2016
Wydawca:
Oddział Kartograficzny Polskiego Towarzystwa Geograficznego
Tematy:
perception
visual system
graphic variables
visual primitives
Opis:
The author describes the properties and mechanisms of visual perception in the context of their significance to the principles of symbol design as used in cartography. Map perception relies on the process of visual perception. Therefore, the knowledge of its inner workings in the map environment allows cartographers to construct cartographic symbols in agreement with the properties of the visual system. Visual perception involves neurosensory processes taking place between the eye and the short-term memory. As such, they operate independently of the beholder’s consciousness and significantly influence the information received by the map user. The author discusses the mechanisms of human vision and the nature of the process of visual perception. It also shows the relationships between the image characteristic and the visual system’s properties such as the optical resolution, visual adaptation, reactions of inhibition and reinforcement, reactions to the image characteristics - as well as the phenomena of contrast, grouping and spatial arrangement. The principles of constructing map symbols that have been developed in the long course of cartography, and based mostly on the map makers’ intuition, find validation in the light of properties and mechanisms of visual perception. As discussed in the paper, the fundamental properties and basic mechanisms of human vision support the view that knowledge of how the visual system works provides foundation for articulating new mapping guidelines and cartographers’ calls for stricter observance of cartographic principles are fully justified.
Źródło:
Polish Cartographical Review; 2016, 48, 1; 5-15
2450-6974
Pojawia się w:
Polish Cartographical Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Indicating and analysis the interrelation between terms - visual: management, control, inspection and testing
Autorzy:
Knop, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/1839512.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
visual management
visual control
visual inspection
visual testing
interrelation
zarządzanie wizualne
kontrola wizualna
oględziny
testy wizualne
wzajemne powiązania
Opis:
The multitude of concepts and methods of management and control related to the word "visual" in the area of production and quality management may cause difficulties with their perception, proper understanding and use of these terms by researchers from various backgrounds (not necessarily related to production) and countries, including Poland. In particular, the noticed inaccuracies in the use of terms with the word "visual" concern such terms as visual: management, control, inspection, and testing, where, for example, in the Polish language the first three different terms in English are named with the same phrase, which sometimes causes some confusion. The aim of the article was an attempt to distinguish, sometimes "troublesome" definitions, to indicate the area of their application, to define possible relations between them, which is a peculiar novelty. The article is an analysis of the literature related to these concepts, systematizes the types of visual concepts and methods in the area of production and quality. It defines in what context the indicated terms should be used by researchers and what is the relationship between them, and under what conditions they can be used separately or jointly. The article is an attempt to indicating and analysis of the interrelation between concepts in which the word "visual" appears concerning production practice. Concepts visual: management, control, inspection, and testing, as the author proves in the article, they should be translated into English with due diligence, due to the differences between them. It has been shown that there is a strong relationship between type definition pairs as visual management & visual control and visual inspection & visual testing, where it is not a mistake to use them interchangeably, and cases, where all these concepts can intertwine, are also given.
Źródło:
Production Engineering Archives; 2020, 26, 3; 110-120
2353-5156
2353-7779
Pojawia się w:
Production Engineering Archives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Visual culture and the style of college textbooks: a critical study
Autorzy:
MOLEK-KOZAKOWSKA, KATARZYNA
Powiązania:
https://bibliotekanauki.pl/articles/1008772.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Opolski
Tematy:
visual culture
multimodal analysis
visual literacy
textbook design
Opis:
This article aims at exploring and problematizing the role of visual designs, as applied in a selection of five popular recent college textbooks that introduce students to Cultural and Media Studies. It can be observed that academic textbooks are increasingly produced in alignment with the properties of contemporary visual culture. The article reviews some of these properties, focusing on the growing need for enhancing visual literacy. It presents the framework of multimodal analysis, as the textbook is co-constituted by verbal and visual modes, which are integrated through a common design. The analytic categories of multimodal analysis allow for a qualitative, yet systematic, examination of some compositional and semiotic resources that have been applied in textbooks. The analysis focuses on textbook typography, supra-textual organization, the number and choice of figures/tables/lists, the layout of pages, structure of chapter/section, and type and framing of visuals. This is followed by a function-oriented critical discussion of these stylistic properties and of the implications of certain compositional preferences for teaching/learning. The study identifies designs that result in diversifying and aestheticizing textbooks visually, as well as hierarchizing and objectivizing knowledge. While both advantages and disadvantages of currently popular designs can be found, attention is drawn to the fact that visually-enhanced designs might fail to engage students in critical reflection, simplify the issues, and divert attention from the merits of exposition/argument, particularly if students lack skills in visual literacy.
Źródło:
Stylistyka; 2013, 22; 233-249
1230-2287
2545-1669
Pojawia się w:
Stylistyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Echolocation, as a method supporting spatial orientation and independent movement of people with visual impairment
Autorzy:
MILER-ZDANOWSKA, KAMILA
Powiązania:
https://bibliotekanauki.pl/articles/938718.pdf
Data publikacji:
2019-06-15
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
echolocation
spatial orientation
visual impairment echolocation
visual disability
Opis:
People with visual impairment use information from other senses to gain knowledge about the world around them. More and more studies conducted with the participation of visually impaired people indicate that data obtained through auditory perception is extremely important. In this context, the ability of echolocation used by blind people to move independently is interesting. The aim of the article is to present echolocation as a method supporting spatial orientation of people with visual impairment. The article presents the results of empirical studies of echolocation. It also presents the benefits of using this ability in everyday life and signals research projects related to the methodology of teaching echolocation in Poland. People with visually impaired to get knowledge about the world around them use information from other senses. Many studies conducted with the participation of visually impaired people indicate that data obtained through hearing are extremely important. In this context, the ability of echolocation used by blind people to move independently is interesting. The aim of the article is to present echolocation as a method supporting spatial orientation of people with visual disabilities. The article presents the results of empirical studies on echolocation. It also presents the benefits of using this skill in everyday life and signals research projects on the methodology of teaching echolocation in Poland.
Źródło:
Interdyscyplinarne Konteksty Pedagogiki Specjalnej; 2019, 25; 353-371
2300-391X
Pojawia się w:
Interdyscyplinarne Konteksty Pedagogiki Specjalnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The objective method of the evaluation of the visual acuity
Autorzy:
Hulewicz, Arkadiusz
Powiązania:
https://bibliotekanauki.pl/articles/227093.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
electrophysiology
Visual Evoked Potentials
statistical analysis
visual acuity
Opis:
The paper presents the use of visual evoked potentials VEP to the objective assessment of visual acuity. Methods of using visual evoked potentials (VEP) rely on the assessment of changes of the electrical action potentials generated within the cortex. To diagnose the degree of weakening eyesight a series of studies on healthy people and visually impaired ones were made. Electrophysiological studies of the eye, using noninvasive VEP examination allow a noninvasive and objective assessment of visual acuity. The use of visual evoked potentials gives the objectivity in assessment of visual acuity what may be very important in ophthalmology. This particularly may concern children examination, people with mental retardation and suspected of simulation.
Źródło:
International Journal of Electronics and Telecommunications; 2019, 65, 1; 39-44
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Words to Be Watched
Autorzy:
Sitko, Agata
Powiązania:
https://bibliotekanauki.pl/articles/1833840.pdf
Data publikacji:
2019-03-22
Wydawca:
Mazowiecka Uczelnia Publiczna w Płocku
Tematy:
visual poetry
concrete poetry
visual perception
materiality
things
Opis:
Visual and concrete poetry reduced ad absurdum current communication conventions and refused to take for granted what is only seemingly obvious. Visual poetry “forces us to look at the text before we read it, that is, to acknowledge its physical authority.” [Willard Bohn, 1986] In the previous century, as well as in the present one, the visual, or if you will, the “scopic régime,” brought about a change of attitude to a written word. Poetry and visual arts accentuated the materiality of writing.
Źródło:
Społeczeństwo. Edukacja. Język; 2019, 8; 49-65
2353-1266
2449-7983
Pojawia się w:
Społeczeństwo. Edukacja. Język
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of eye-tracking in drivers testing: A review of research
Autorzy:
Kapitaniak, Bronisław
Walczak, Marta
Kosobudzki, Marcin
Jóźwiak, Zbigniew
Bortkiewicz, Alicja
Powiązania:
https://bibliotekanauki.pl/articles/2177038.pdf
Data publikacji:
2015-08-14
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
eye-tracking
visual strategy
drivers
visual fatigue
road accidents
Opis:
Recording and analyzing eye movements provide important elements for understanding the nature of the task of driving a vehicle. This article reviews the literature on eye movement strategies employed by drivers of vehicles (vehicle control, evaluation of the situation by analyzing essential visual elements, navigation). Special focus was placed on the phenomenon of conspicuity, the probability of perceiving an object in the visual field and the factors that determine it. The article reports the methods of oculographic examination, with special emphasis on the non-invasive technique using corneal reflections, and the criteria for optimal selection of the test apparatus for drivers in experimental conditions (on a driving simulator) and in real conditions. Particular attention was also paid to the helmet – or glass-type devices provided with 1 or 2 high definition (HD) camcorders recording the field of vision and the direction of gaze, and the non-contact devices comprising 2 or 3 cameras and an infrared source to record eye and head movements, pupil diameter, eye convergence distance, duration and frequency of eyelid blinking. A review of the studies conducted using driver eye-tracking procedure was presented. The results, in addition to their cognitive value, can be used with success to optimize the strategy of drivers training.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2015, 28, 6; 941-954
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of various factors on the occurrence and type of visual experiences during the cataract surgery
Autorzy:
Kampka, Zofia
Urbaniec, Przemysław
Senderek, Emila
Pojda-Wilczek, Dorota
Powiązania:
https://bibliotekanauki.pl/articles/2159018.pdf
Data publikacji:
2022-06-30
Wydawca:
Medical Education
Tematy:
cataract surgery
visual experiences
intraoperative stress
light impressions
visual impressions
Opis:
Aims: The aim was to check whether there is a relationship between ophthalmic and non-ophthalmic concomitant diseases and visual experiences during surgery. In addition, we wanted to verify whether visual experiences are influenced by such factors as age, gender, education, stress, etc. Methods: The patients phoned a few days after the surgery in order to be interviewed post-operatively by a 30-question questionnaire. Questions were asked on demographic data, concomitant diseases, both ophthalmic and non-ophthalmic, emotional and visual experiences during the cataract surgery p-value was calculated from the Chi-Square Test. Results: The study comprised 121 women and 87 men. 63.9% of patients underwent cataract surgery for the first time. Among 208 respondents 73 (35.1%) had light impressions and 77 (37%) reported visual impressions. Patients under 60 were more likely to experience both light and visual impressions (p < 0.05). Particular visual defects and concomitant diseases, both ophthalmic and non-ophthalmic, can influence the type of visual experiences. Stress was positively correlated with the occurrence of both light and visual impressions (p < 0.05) but it did not influence the exact type of visual experiences. For half of the respondents (51.0%), the impressions seen during the surgery were neutral. Only 14.4% of patients assessed these sensations as pleasant. Conclusion: Patients experienced a variety of visual sensations, which are not usually unpleasant, however they occurred more often among stressed patients and could also raise the stress level. Proper preoperative counselling is needed to help patients cope with the stress before surgery.
Źródło:
OphthaTherapy; 2022, 9, 2; 151-157
2353-7175
2543-9987
Pojawia się w:
OphthaTherapy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Teaching Visual Grounded Theory
Autorzy:
Konecki, Krzysztof T.
Powiązania:
https://bibliotekanauki.pl/articles/2138617.pdf
Data publikacji:
2009-12-31
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
Visual grounded theory
Homelessness
Photography
Visual sociology
Qualitative data analysis
Visual processes
Teaching qualitative methods
Qualitative sociology
Opis:
The paper is based on personal 20-years experience of teaching methodology of grounded theory and qualitative methods. In the following paper I would like to show the usefulness of visual analysis in teaching methodology of grounded theory. A very important tool is to use pictures and a sequencing of pictures, which give a comparative insight into empirical data and teaches the comparative method that is so important to generate theory (Glaser 1965; Glaser, Strauss, 1967; Glaser 1978). Students can learn how to compare and find patterns in empirical instances, which have visual character. Some of the sequences show stages of action and the sequence that all together is a linear representation of activity. Sequence of pictures helps to build the pattern that is conceptual understanding of the phenomena being studied. In other case, the sequences of pictures given to students are not planned. They are almost accidentally created and force students to find patterns by means of the comparative analysis. We should always know what had happened before a picture was taken as well as afterwards, it is similar to sequences analysis in textual data (Silverman 2007). We should always be aware of the context of analyzed activity. Students are also encouraged to make a theoretical sampling and saturate categories using data from photos and other visual data. This helps them to proceed with the research from empirical incidents to conceptually elaborated properties of categories and finally to the definition of category and formulating the hypotheses. In this way they learn visual grounded theory that is using the visual images for generating categories, properties and hypotheses and also for presenting results of analysis in the final report.
Źródło:
Qualitative Sociology Review; 2009, 5, 3; 64-92
1733-8077
Pojawia się w:
Qualitative Sociology Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Audio-Visual Speech Processing System for Polish Applicable to Human-Computer Interaction
Autorzy:
Jadczyk, T.
Powiązania:
https://bibliotekanauki.pl/articles/305828.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
audio-visual speech recognition
visual features extraction
human-computer interaction
Opis:
This paper describes audio-visual speech recognition system for Polish language and a set of performance tests under various acoustic conditions. We first present the overall structure of AVASR systems with three main areas: audio features extraction, visual features extraction and subsequently, audiovisual speech integration. We present MFCC features for audio stream with standard HMM modeling technique, then we describe appearance and shape based visual features. Subsequently we present two feature integration techniques, feature concatenation and model fusion. We also discuss the results of a set of experiments conducted to select best system setup for Polish, under noisy audio conditions. Experiments are simulating human-computer interaction in computer control case with voice commands in difficult audio environments. With Active Appearance Model (AAM) and multistream Hidden Markov Model (HMM) we can improve system accuracy by reducing Word Error Rate for more than 30%, comparing to audio-only speech recognition, when Signal-to-Noise Ratio goes down to 0dB.
Źródło:
Computer Science; 2018, 19 (1); 41-63
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Short Communication: The Role of Different Body-Related Visual Cues in Synchronized Trampolining
Autorzy:
Heinen, Thomas
Czogalla, Natalie
Powiązania:
https://bibliotekanauki.pl/articles/1054914.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
trampoline gymnastics
visual perception
Opis:
Visual information is thought to be a dominant information source when performing whole-body movements in gymnastics. Visual information can furthermore facilitate performance when being engaged in situations of interpersonal coordination that may occur in sports such as synchronized trampolining. The question arises, which body-related visual cues are most important in the emergence of behavioral synchronization between two gymnasts in synchronized trampolining? To address this question, advanced gymnasts were asked to synchronize their performance to video-sequences of a model gymnast, while body-related visual cues of the model gymnast were systematically manipulated. Results revealed, first that biological motion cues are more important than nonbiological motion cues, and second that the perceived motion of the arms seems to drive synchronicity in synchronized trampolining. It is stated, that biological visual information of the arms is a dominant visual information source when performing leaps in synchronized trampolining.
Źródło:
Central European Journal of Sport Sciences and Medicine; 2016, 13, 1; 15-21
2300-9705
2353-2807
Pojawia się w:
Central European Journal of Sport Sciences and Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The registration system for the evaluation of indoor visual slam and odometry algorithms
Autorzy:
Schmidt, A.
Kraft, M.
Fularz, M.
Domagała, Z.
Powiązania:
https://bibliotekanauki.pl/articles/384854.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
SLAM
visual odometry
benchmark
Opis:
This paper presents the new benchmark data registra- tion system aimed at facilitating the development and evaluation of the visual odometry and SLAM algorithms. The WiFiBOT LAB V3 wheeled robot equipped with three cameras, XSENS MTi atitude and heading reference system (AHRS) and Hall encoders can be used to gather data in indoor exploration scenarios. The ground truth trajectory of the robot is obtained using the visual motion tracking system. Additional static cameras simulating the surveillance network, as well as artificial markers augmen ting the navigation are incorporated in the system. The datasets registered with the presented system will be freely available for research purposes.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2013, 7, 2; 46-51
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Layers of landscape—transdisciplinarity of contemporary landscape photography
Autorzy:
Michałowska, Marianna
Powiązania:
https://bibliotekanauki.pl/articles/914217.pdf
Data publikacji:
2019-01-28
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
landscape
photography
visual culture
Źródło:
Polish Journal of Landscape Studies; 2018, 1, 1; 65-75
2657-327X
Pojawia się w:
Polish Journal of Landscape Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
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