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Tytuł:
$B^q$ for parabolic measures
Autorzy:
Sweezy, Caroline
Powiązania:
https://bibliotekanauki.pl/articles/1217889.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
parabolic-type measures
Lip (1,1/2) domain
good-λ inequalities
Opis:
If Ω is a Lip(1,1//2) domain, μ a doubling measure on $∂_{p}Ω, ∂//∂t - L_{i}$, i = 0,1, are two parabolic-type operators with coefficients bounded and measurable, 2 ≤ q < ∞, then the associated measures $ω_{0}$, $ω_{1}$ have the property that $ω_{0} ∈ B^{q}(μ)$ implies $ω_{1}$ is absolutely continuous with respect to $ω_{0}$ whenever a certain Carleson-type condition holds on the difference function of the coefficients of $L_{1}$ and $L_{0}$. Also $ω_{0} ∈ B^{q}(μ) $ implies $ω_{1} ∈ B^{q}(μ)$ whenever both measures are center-doubling measures. This is B. Dahlberg's result for elliptic measures extended to parabolic-type measures on time-varying domains. The method of proof is that of Fefferman, Kenig and Pipher.
Źródło:
Studia Mathematica; 1998, 131, 2; 115-135
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A study on the lip print pattern of Naga tribes
Autorzy:
Kiewhuo, Magdalene
Nandakumar, R.
Powiązania:
https://bibliotekanauki.pl/articles/1031852.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Cheiloscopy
Lip prints
Nagas
identification
Opis:
Cheiloscopy is a forensic investigation technique that deals with the identification based on lip traces. Based upon the research, it was established that the arrangement of lines on the red part of human lips is unique for each human being. The present study is an attempt to determine the pattern of lip prints and evaluate its uniqueness in a sample of Naga population and also their association with print in the four quadrants of the lip. A total of 100 (15-40) years individuals were randomly selected. With the help of brush a layer of lipstick was applied on the lips of the subject. Following the basis of Tsuchihashi’s classification the lip prints collected were studied. It was found that Type I’ pattern was predominant among the studied subjects followed by Type I and Type III pattern while Type V pattern was the least frequent Lip pattern distribution in (all four quadrants) in both males and females of Nagas. It is found that no two or more persons had similar features of lip grooves. The frequency of repetition of the lip print pattern in successive quadrant is found to be high. Lip print pattern can be used as an additional tool for personal identification.
Źródło:
World News of Natural Sciences; 2020, 30, 2; 117-124
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Acoustic Study of the Emphatic Occlusive [ṭ] in School-Going Children with Cleft Palate or Cleft Lip
Autorzy:
Baazi, Khaled
Guerti, Mhania
Powiązania:
https://bibliotekanauki.pl/articles/2141635.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cleft palate
cleft lip and cleft palate
acoustic analysis
school children
Opis:
The aim of this acoustic study is to analyse the phoneme [ṭ] produced by school children surgically operated on for the cleft palate or cleft lip, in order to examine their vocal characteristics, to provide speech therapists with numerous concrete analyses of voice and speech, to effectively support them and to prevent some serious outcomes on their psychological and academic development. The motivation for this study was mainly stemming from the difficulties that Algerian schoolchildren with clefts encounter in the pronunciation of this phoneme. To carry out the study, several acoustic parameters were investigated in terms of the fundamental frequency F0, the first three formants F1, F2, and F3, the energy E0, the Voice Onset Time (VOT), the durations [CV] and [V] of the subsequent vowel [a]. For the analysis, further important parameters in the field of pathological speech were deployed, namely the degree of disturbance of F0 (jitter), the degree of disturbance of intensity (shimmer) and the HNR (Harmonics to Noise Ratio). Results revealed disturbance in the values of F1, F2, and F3 and stability in the values of F0. Another important reported aspect is the increase in the value of the VOT due to the difficulties in controlling the plosives’ successive closure and release.
Źródło:
Archives of Acoustics; 2022, 47, 2; 141-149
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristics of the use of coupled hidden Markov models for audio-visual Polish speech recognition
Autorzy:
Kubanek, M.
Bobulski, J.
Adrjanowicz, L.
Powiązania:
https://bibliotekanauki.pl/articles/201266.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
coupled hidden Markov models
audiovisual speech recognition
lip reading
Opis:
This paper focuses on combining audio-visual signals for Polish speech recognition in conditions of the highly disturbed audio speech signal. Recognition of audio-visual speech was based on combined hidden Markov models (CHMM). The described methods were developed for a single isolated command, nevertheless their effectiveness indicated that they would also work similarly in continuous audiovisual speech recognition. The problem of a visual speech analysis is very difficult and computationally demanding, mostly because of an extreme amount of data that needs to be processed. Therefore, the method of audio-video speech recognition is used only while the audiospeech signal is exposed to a considerable level of distortion. There are proposed the authors’ own methods of the lip edges detection and a visual characteristic extraction in this paper. Moreover, the method of fusing speech characteristics for an audio-video signal was proposed and tested. A significant increase of recognition effectiveness and processing speed were noted during tests – for properly selected CHMM parameters and an adequate codebook size, besides the use of the appropriate fusion of audio-visual characteristics. The experimental results were very promising and close to those achieved by leading scientists in the field of audio-visual speech recognition.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2012, 60, 2; 307-316
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Degradation modeling method for rotary lip seal based on failure mechanism analysis and stochastic process
Metoda modelowania degradacji obrotowego uszczelnienia wargowego w oparciu o analizę mechanizmu uszkodzenia i proces stochastyczny
Autorzy:
Liu, Di
Wang, Shaoping
Tomovic, Mileta M.
Powiązania:
https://bibliotekanauki.pl/articles/1841853.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
rotary lip seal
failure mechanism analysiss
stochastic process
degradation modeling
Bayesian model averaging
obrotowe uszczelnienie wargowe
mechanizm uszkodzenia
proces stochastyczny
modelowanie degradacji
bayesowskie uśrednianie modeli
Opis:
Rotary lip seal is widely used in aircraft and its performance affects the safety of the aircraft. Hence, it is necessary to estimate useful lifetime and reliability of the seal. Degradation of rotary lip seal is always with random effects, which cannot be considered by theoretical failure mechanism analysis. Hence, in order to consider the random effects of rotary lip seal degradation, stochastic processes are applied. Furthermore, considering the monotonic degradation of the seal, Gamma process and inverse Gaussian process are selected as the candidate processes. To combine the candidate processes, Bayesian model averaging is introduced. Based on the failure mechanism analysis and numerical simulation, the theoretical wear path is predicted and corresponding linearization method is proposed. The measured degradation data is converted and the seal wear process is transformed to a linear degradation process. The model parameters and model probabilities are evaluated by fully Bayesian inference method. The effectiveness of the proposed method is verified by comparing the predicting degradation and experimental observations. The proposed method can be used to evaluate reliability and useful lifetime of rotary lip seal. According to sensitivity analysis, an effective way to improve lifetime and reliability of the seal is to increase the wear depth threshold.
Obrotowe uszczelnienia wargowe znajdują szerokie zastosowanie w samolotach, a ich sprawność wpływa na bezpieczeństwo statków powietrznych. Oznacza to, iż szacowanie żywotności i niezawodności tego rodzaju uszczelnień ma kluczowe znaczenie. Degradacja obrotowego uszczelnienia wargowego jest zawsze związana z efektami losowymi, których nie uwzględnia teoretyczna analiza mechanizmu uszkodzenia. Dlatego też do oceny efektów losowych degradacji obrotowego uszczelnienia wargowego wykorzystuje się procesy stochastyczne, takie jak proces Gamma czy odwrotny proces Gaussa. W przedstawionej pracy, wybrane procesy degradacji łączono za pomocą metody bayesowskiego uśredniania modeli. Na podstawie analizy mechanizmów uszkodzeń i symulacji numerycznej, konwertowano uzyskane w pomiarach dane degradacyjne, co pozwoliło na przekształcenie procesu degradacji obrotowego uszczelnienia wargowego w proces liniowy. Parametry modelu i prawdopodobieństwa oceniano za pomocą metody pełnego wnioskowania bayesowskiego na podstawie obserwacji degradacji. Skuteczność przedstawionej metody weryfikowano porównując przewidywane i obserwowane wartości degradacji. Proponowaną metodę można wykorzystywać do oceny niezawodności i żywotności obrotowego uszczelnienia wargowego. Przeprowadzona analiza czułości pokazuje, że skutecznym sposobem na poprawę żywotności i niezawodności omawianego typu uszczelnienia jest zwiększenie progu uszkodzenia w postaci maksymalnej głębokości zużycia.
Źródło:
Eksploatacja i Niezawodność; 2020, 22, 3; 381-390
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dental abnormalities in children with cleft lip with or without cleft palate
Autorzy:
Lasota, A.
Powiązania:
https://bibliotekanauki.pl/articles/2098234.pdf
Data publikacji:
2020
Wydawca:
Instytut Medycyny Wsi
Tematy:
dental abnormality
cleft lip
cleft palate
supernumerary tooth
hypodontia
child
Opis:
Introduction. Cleft lip with or without cleft palate (CLP) is associated with hypodontia, supernumerary teeth, dysmorphology of the crown or root shape, teeth impaction and malposition. The prevalence of anomalies is higher than in general population. Objective. The aim of the review is description of dental anomalies affecting children with cleft lip or without cleft palate. Abbreviated description of the state of knowledge. The most common anomaly is teeth agenesis with prevalence of 28% – 66% of patients with CLP. Permanent dentition is more often affected (52.7%) than primary (16.2%), the cleft-side lateral incisor is most often missing. Hypodontia increases with severity of the cleft. Supernumeraries were found in 17.7% of the subjects with cleft lip and/or palate for primary maxillary dentition, and in 5.7% for permanent maxillary dentition. Supernumerary teeth are mostly maxillary laterals, both inside and outside the cleft, and have different variations in morphology and size. The anterior maxilla is a main area for supernumeraries occurrence. Lateral incisor in the cleft area is often peg-shaped, its microdontia was revealed in 5.6%; they can also have enamel hypoplasia – 8.9% of cases. Macrodontia was found in 12.5% and taurodontism in 15.2%. Canine impaction prevalence is different in studies from various cleft centres and ranged from 0% – 58%. Rotations of central incisors was found in the area of cleft in 86.7%. Transposition of maxillary canine and first premolars was found in 5.5% of bilateral, 8% of right, and 3.3% of left unilateral clefts in the study. Summary. Multiple teeth anomalies affect the population of children with cleft lip with or without palate. The most common problem is hypodontia. Treatment process of these patients demands experienced specialists in different fields of dentistry and complex, rigorous dental care.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2021, 15, 1; 46-49
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution of lip and/or palate clefts types among children form Lodz during years 1981-2015
Autorzy:
Antoszewski, Bogusław
Fijałkowska, Marta
Powiązania:
https://bibliotekanauki.pl/articles/1392644.pdf
Data publikacji:
2018
Wydawca:
Index Copernicus International
Tematy:
cleft
lip
palate
type of anomaly
Opis:
Introduction: Cleft lip and/or palate are the most common face malformations. The clinical picture of these anomalies is very variable. Cleft can include only the lip and/or alveolus, palate or all of these structures can be clefted. Aim: The aim of this paper is to present all particular types of clefts, their relationship to gender and body side in the group of children born in Lodz during the years 1981-2015. Material and method: The study group included 434 patients with facial clefts (218 males and 216 females) in the age between 4 weeks to 18 years who were born in Lodz during years 1981-2015. Results: In the analyzed group, there were 181 palate clefts (41.7%), 156 lip and palate clefts (36%) and 97 lip clefts (22.3%). A detailed analysis of clefts types showed that isolated palate clefts are definitely more frequent in females than males (112 vs. 69), while lip and palate clefts in boys than girls (96 vs. 60), furthermore left-sided clefts are more common than right-sided. Conclusions: During 35 years, the most common type of anomaly in children born in Lodz were palate clefts, followed by lip and palate clefts and the less frequent lip clefts. Palate clefts are more common in girls, while lip and palate clefts in boys. Left-sided clefts are two times more common than right-sided clefts.
Źródło:
Polish Journal of Surgery; 2018, 90, 3; 1-6
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of reliability of perioral muscle pressure measurements using a newly developed device with a lip piece
Autorzy:
Takahashi, M.
Koide, K.
Suzuki, H.
Satoh, Y.
Iwasaki, S.-I.
Powiązania:
https://bibliotekanauki.pl/articles/306575.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
nacisk
wiarygodność
mięśnie
jama ustna
tongue pressure
upper lip pressure
lower lip pressure
absolute reliability
relative reliabilit
Opis:
Purpose: We examined the reliability of measurements using a newly developed perioral muscle pressure measuring device with a lip piece in healthy adults. Methods: Subjects were 40 healthy men (25.8 years) with normal stomatognathic function. Perioral muscle pressure measuring device with a lip piece was used to measure upper lip, lower lip and tongue pressure, and a balloon-based measurement device was used to measure tongue and cheek pressure. Each measurement was taken twice with a 1-min interval between the two measurements. We determined intra-rater reliability by using the intra-class correlation coefficient as a test of relative reliability. As a test of absolute reliability, Bland–Altman analysis was used to assess systematic bias and the 95% confidence interval of the minimal detectable change was calculated. Additionally, the coefficient of variation was calculated. The Spearman–Brown formula was calculated the number of measurements needed to achieve a confidence coefficient ≥0.9. Each set of measurements was followed by a second set that were taken 1 week later. Results: All measurements showed high values of intra-class correlation coefficient. Upper lip, tongue, and cheek pressure can be determined based on a single measurement, while lower lip pressure requires averaging twice. No systematic bias was observed. The coefficients of variation of measurements were almost the same between the two devices. Conclusion: Measurements were highly reliable regardless of the type of perioral muscles. Our findings suggest that the method described in this study is useful as a quantitative chair side method for examining perioral muscle pressure.
Źródło:
Acta of Bioengineering and Biomechanics; 2016, 18, 1; 145-153
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fonetyka wizualna
Visual Phonetics
Autorzy:
Szczepankowski, Bogdan
Powiązania:
https://bibliotekanauki.pl/articles/2179783.pdf
Data publikacji:
2022-02-22
Wydawca:
Polskie Towarzystwo Logopedyczne
Tematy:
fonetyka wizualna
odczytywanie mowy z ust
osoby głuche
osoby słabosłyszące
visual phonetics
lip-reading
deaf people
hard of hearing people
Opis:
Fonetyka wizualna zajmuje się wzrokową percepcją mowy u osób głuchych, a także wzrokowo-słuchową percepcją mowy u osób słabosłyszących. Najczęściej używanym określeniem dla tej czynności jest odczytywanie mowy z ust. Początki zainteresowania badaczy tym zagadnieniem sięgają XVII wieku, na ziemiach polskich pierwszy zajmował się tym Jan Siestrzyński w początkach XIX wieku. Odczytywane mowy z ust nie jest umiejętnością łatwą do opanowania. Kilkudziesięciu polskim głoskom odpowiada bowiem zaledwie kilka widocznych z zewnątrz obrazów artykulacyjnych (kinemów), co oznacza, że niektóre głoski, różniące się akustycznie, mogą z zewnątrz wyglądać tak samo, będąc reprezentowane przez ten sam kinem artykulacyjny (np. p, b, m). Ponadto niektóre głoski (środkowo i tylnojęzykowe) wizualnie są niedostrzegalne (kinem artykulacyjny ma charakter neutralny).
Visual phonetics covers deaf people visual perception of speech and hard of hearing people visual-auditory perception of speech. The most commonly used term for this activity is lip-reading. The beginnings of researchers’ interest in this subject date back to the 17th century. In the Polish lands the first to deal with this topic was Jan Siestrzyński, in the beginning of the 19th century. Lip-reading is not an easy skill to master. Several dozen sounds of Polish language correespond to only few visible articulation layouts which means that some sounds that differ acoustically can look the same (e.g. p,b,m) as they are represented by the same articulation layout, Moreover some sounds of Polish language are imperceptible.
Źródło:
Logopedia; 2022, 51, 2; 65-75
0459-6935
Pojawia się w:
Logopedia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interdyscyplinarne leczenie rozszczepów wargi i/lub podniebienia – aktualny stan wiedzy
Interdisciplinary Treatment of Cleft Lip and/or Palate – State of the Art
Autorzy:
Hortis-Dzierzbicka, Maria
Powiązania:
https://bibliotekanauki.pl/articles/892799.pdf
Data publikacji:
2020-08-30
Wydawca:
Polskie Towarzystwo Logopedyczne
Tematy:
rozszczep podniebienia
rozszczep wargi i podniebienia
chirurgiczne zamknięcie rozszczepu podniebienia
leczenie zespołowe
aktualny stan wiedzy
cleft palate
cleft lip and palate
cleft palate surgery
interdisciplinary management
state of the art
Opis:
Rozszczep wargi i/lub podniebienia jest jedną z najczęstszych występujących w populacji ludzkiej wad wrodzonych. Odpowiada bowiem za 65% anomalii rozwojowych twarzoczaszki, a postępowanie terapeutyczne w tej wadzie, ze względu na różnorodność i złożoność problemów, które z niej potencjalnie wynikają, bywa niezwykle trudne. Rozliczne kontrowersje dotyczą zarówno samego postępowania chirurgicznego – pierwotnego i wtórnego – jak i rehabilitacji, która w najprostszym ujęciu dotyczy warunków szczękowo-zgryzowych i mowy. Na przestrzeni ostatniego ćwierćwiecza nastąpiło szczególnie dużo zmian w koncepcji leczenia tej wady. Przedstawia je niniejszy artykuł, podkreślając najistotniejsze nowe tendencje. W odniesieniu do samego leczenia chirurgicznego światową tendencją stało się skracanie terminu pierwotnego chirurgicznego zamknięcia szczeliny rozszczepu podniebienia. Wg obecnych standardów postępowania powinno ono mieć miejsce w pierwszym roku życia dziecka, co ma związek zarówno z rozwojem anestezjologii dziecięcej, jak i z nowoczesnym spojrzeniem na rehabilitację mowy i zgryzu w tej najczęstszej wadzie rozwojowej twarzoczaszki.
Cleft lip and/or palate is one of the most common birth defects in the human population. It is responsible for 65% of craniofacial developmental anomalies, and the therapeutic procedure in this defect, due to the variety and complexity of problems that potentially result from it, can be extremely difficult. Numerous controversies concern both the surgical procedure itself, both primary and secondary, as well as rehabilitation, which in the simplest terms concerns maxillofacial conditions and speech. Over the last quarter of a century, there have been particularly many changes in the concept of treatment of orofacial clefts. This article presents them highlighting the most important new trends. With regard to the surgical treatment itself, the global tendency has been to shorten the date of primary surgical closure of the clefted palate. According to current standards, it should take place in the first year of a child’s life, which is related to both the development of pediatric anesthesiology and a modern view on speech and occlusion rehabilitation in this defect.
Źródło:
Logopedia; 2019, 48, 1; 439-446
0459-6935
Pojawia się w:
Logopedia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigating the effect of lip froth washing on coal yield during flotation of a high ash South African coal
Autorzy:
du Plessis, Cherryl
Sibanda, Vusumuzi
Dworzanowski, Marek
Danha, Gwiranai
Mamvura, Tirivaviri A.
Powiązania:
https://bibliotekanauki.pl/articles/2146887.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
flotation
mechanical flotation cell
flotation reagents
lip froth washing
coal yield
primary wash cells
secondary wash cells
Opis:
An investigation was conducted to evaluate the effect of lip washing on coal flotation at Anglo American’s Goedehoop South (GHS) fine coal plant in South Africa. In the test-work, performance of cells with lip washing system were compared with baseline cells without lip washing in terms of coal yield and coal quality. Yields observed with lip washing were significantly higher than those of baseline cells. Improvements of up to 15% were recorded. The product obtained at low flotation reagent dosages (1.30–1.45 kg/t) on lip wash cells had ~16.85% ash content against ~17.65% with baseline cells, suggesting that higher yields could be achieved at superior qualities to those achieved with baseline cells. At higher reagent dosages (1.60–1.75 kg/t), coal yields further improved but quality reduced on lip wash cells. Calorific Values (CV) of coal products obtained by lip washing and baseline flotation were similar. When different coal particle size fractions were floated separately, the yield increased as particle size increased from 75 to 300 μm and then decreased from 300 to 500 μm for both baseline and lip washing flotation. Lip washing caused a marked increase in the yield for finer particles (< 300 μm) with optimum size class of between 212 – 300 μm. In addition, a much bigger increase in the yield was achievable with lip washing of lower quality coal. The ash content after lip washing of poor-quality coal were also comparable to the ash content after lip washing of good quality coal.
Źródło:
Physicochemical Problems of Mineral Processing; 2021, 57, 6; 169--181
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lip traces recognition based on lines pattern
Autorzy:
Smacki, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/333930.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:
ślad warg
wydruk wargi
cheiloskopia
identyfikacja kryminalna
rejestracja obrazu
lip trace
lip print
heiloscopy
criminal identification
image recognition
Opis:
This paper presents a method for automatic lip traces recognition based on lip furrows arrangement. First, lip trace is scanned and subjected to image processing and feature extraction. Then, identification is performed by comparing lip trace characteristics with a collection of comparative lip prints characteristics stored in a database. The proposed solution gives a satisfactory level of identification accuracy. After further improvement, it can be used as part of a system performing analysis of traces recovered from crime scenes.
Źródło:
Journal of Medical Informatics & Technologies; 2010, 15; 53-60
1642-6037
Pojawia się w:
Journal of Medical Informatics & Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Method for identification of fragments of lip prints images on the basis of the generalized hough transform
Autorzy:
Wrobel, K.
Doroz, R.
Powiązania:
https://bibliotekanauki.pl/articles/333845.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:
lip print recognition
Generalized Hough Transform
similarity measure
ozpoznawanie wydruku warg
podobieństwo miary
Opis:
The paper presents a new method for identification of fragments of lip print images on the basis of the Generalized Hough Transform (GHT). The effectiveness of this method was verified in practice. The maximum value obtained from the accumulator array after the Hough transform has been assumed as the measure of similarity between a lip print image and a reference object. The advantage of this method is the possibility of use in forensic science to identify persons who left lip prints at crime scenes.
Źródło:
Journal of Medical Informatics & Technologies; 2013, 22; 189-193
1642-6037
Pojawia się w:
Journal of Medical Informatics & Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mimicking speaker’s lip movement on a 3D head model using cosine function fitting
Autorzy:
Lüsi, I.
Anbarjafari, G.
Powiązania:
https://bibliotekanauki.pl/articles/199798.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
3D lip movement modelling
mathematical modelling
depth information analysis
cosine function fitting
human-computer interaction
modelowanie ruchu warg 3D
modelowanie matematyczne
funkcja cosinus
interakcja człowiek-komputer
Opis:
Real-time mimicking of human facial movement on a 3D head model is a challenge which has attracted attention of many researchers. In this research work we propose a new method for enhancing the capturing of the shape of lips. We present an automatic lip movement tracking method which employs a cosine function to interpolate between extracted lip features in order to make the detection more accurate. In order to test the proposed method, mimicking lip movements of a speaker on a 3D head model is studied. Microsoft Kinect II is used in order to capture videos and both RGB and depth information are used to locate the mouth of a speaker followed by fitting a cosine function in order to track the changes of the features extracted from the lips.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2017, 65, 5; 733-739
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morbidity trend of lip cancer in Podkarpacie and in Poland in the years 1963–2013
Autorzy:
Gawełko, Jan
Cierpiał-Wolan, Marek
Podgórska-Bednarz, Justyna
Kawecki, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/455003.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
lip cancer
incidence
morbidity trend
Opis:
Introduction. The dramatic decline in the incidence of lip cancer, which until the 80s of the twentieth century was the cause of significant morbidity, is an example of changes in the structure and trends of cancer incidence both in Poland and in the regions. Aim. Therefore, the aim of this paper is to analyze the changes in the morbidity trend of the lip cancer during the last 50 years, both in Poland and in Podkarpacie. Material and methods. A retrospective analysis of the lip cancer morbidity in the Podkarpackie region and in Poland in the years 1963–2013 was carried out based on data from the literature and our own research. Results and conclusion. A steady decline in the incidence of lip cancer in Podkarpacie has been observed since 1982 for men and 1983 for women. In Poland these trends have been observed since 1972 for men and 1993 for women. In the analyzed period significant changes in the incidence structure in terms of sex are observed – from approximately 1:10 (women / men) in 1963 similarly in Podkarpackie and Poland – to 1:4.6 in Podkarpacie and 1: 2.6 in Poland in 2013.
Źródło:
European Journal of Clinical and Experimental Medicine; 2017, 1; 32-38
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 36

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