|
|
Research of Advanced Online Handwriting Analysis Methods with a Special Focus on Assessment of Graphomotor Disabilities in School-aged Children
Zvončák, Vojtěch ; Havigerová,, Jana Marie (oponent) ; Drotár,, Peter (oponent) ; Mekyska, Jiří (vedoucí práce)
Graphomotor abilities (GA) represent a set of psychomotor activities that are executed during drawing and writing. The GA are prerequisites for mastering of elementary school skills, particularly writing. Children in 1 st and 2 nd grade can experience difficulties in execution of simple graphomotor tasks (GD) and later in 3 rd and 4 th grade even in handwriting tasks (HD). The disruption of processes involved in handwriting is generally called Developmental Dysgraphia (DD). The prevalence of DD in the Czech Republic is 3–5 %. To this day the DD is evaluated subjectively by teams of psychologists and special educationalist. Currently, an objective measuring tool that asses the properties of GD or HD is missing in practice. Consequently, this thesis is aiming to identify symptoms associated with graphomotor disabilities in school–aged children and design new parameters quantifying them. For this purpose, a new complex GA protocol was proposed (36 tasks), which represents an environment, where the identified symptoms can be manifested (24 symptoms). Moreover, 76 quantifying features were introduced. A new graphomotor difficulties rating scale (GDRS) was designed based on computerised analysis of handwriting. Finally, new online handwriting parameters based on advanced signal processing techniques were designed and tested, which can assess poor dexterity or unspecified motor clumsiness. The GDRS represents a novel and modern objective measurement tool, that is not yet available in the Czech Republic or in other countries. Its utilization will help in the modernization of DD diagnosis and in the remediation process. With proper research, it could be adapted into other languages as well. Moreover, the methodology can be used and optimized for other diseases, which affects GA, such as Autism, Attention Deficit Coordination Disorder (ADHD) or Developmental Coordination Disorder (DCD).
|
|
|
Compression and analysis of digital video signals
Grúbel, Michal ; Slanina, Martin (oponent) ; Kratochvíl, Tomáš (vedoucí práce)
This bachelor's thesis deals with technical parameters of chosen algorithms for video compression, especially MPEG-1, MPEG-2, MPEG-4 Part 14 and DivX. Whitin it there was created a special software in Matlab that compares frames differences between reference and evaluated sequence. For this purpose there were recorded short test sequences with different properties in time and frequency domain, which recording, compressing, decompressing and decompiling to single frames are described and shown in detail. The results of evaluation are processed in graphs and then described in writing. In final overall evaluation is stated which algorithm for video compression is optimal for which type of sequences that differ in properties in time and frequency domain.
|
|
|
Research of Advanced Online Handwriting Analysis Methods with a Special Focus on Assessment of Graphomotor Disabilities in School-aged Children
Zvončák, Vojtěch ; Havigerová,, Jana Marie (oponent) ; Drotár,, Peter (oponent) ; Mekyska, Jiří (vedoucí práce)
Graphomotor abilities (GA) represent a set of psychomotor activities that are executed during drawing and writing. The GA are prerequisites for mastering of elementary school skills, particularly writing. Children in 1 st and 2 nd grade can experience difficulties in execution of simple graphomotor tasks (GD) and later in 3 rd and 4 th grade even in handwriting tasks (HD). The disruption of processes involved in handwriting is generally called Developmental Dysgraphia (DD). The prevalence of DD in the Czech Republic is 3–5 %. To this day the DD is evaluated subjectively by teams of psychologists and special educationalist. Currently, an objective measuring tool that asses the properties of GD or HD is missing in practice. Consequently, this thesis is aiming to identify symptoms associated with graphomotor disabilities in school–aged children and design new parameters quantifying them. For this purpose, a new complex GA protocol was proposed (36 tasks), which represents an environment, where the identified symptoms can be manifested (24 symptoms). Moreover, 76 quantifying features were introduced. A new graphomotor difficulties rating scale (GDRS) was designed based on computerised analysis of handwriting. Finally, new online handwriting parameters based on advanced signal processing techniques were designed and tested, which can assess poor dexterity or unspecified motor clumsiness. The GDRS represents a novel and modern objective measurement tool, that is not yet available in the Czech Republic or in other countries. Its utilization will help in the modernization of DD diagnosis and in the remediation process. With proper research, it could be adapted into other languages as well. Moreover, the methodology can be used and optimized for other diseases, which affects GA, such as Autism, Attention Deficit Coordination Disorder (ADHD) or Developmental Coordination Disorder (DCD).
|
|
|
Využití HandTutor v ergoterapii u osob po poškození mozku
Bartoňová, Eliška ; Oborná, Pavlína (vedoucí práce) ; Čábelková, Alžběta (oponent)
BAKALÁŘSKÉ PRÁCE Jméno: Eliška Bartoňová Vedoucí práce: Mgr. Pavlína Svozílková Oponent práce: Název bakalářské práce: Využití HandTutor v ergoterapii u osob po poškození mozku Abstrakt bakalářské práce: Tato bakalářská práce se zabývá využitím technologie HandTutor v ergoterapii u osob po poškození mozku. Teoretická část popisuje technologii HandTutor, poškození mozku a následnou ergoterapeutickou intervenci. Technologie HandTutor je prezentována jako aktivní rehabilitační systém horní končetiny obsahující diagnostickou a terapeutickou část. Praktická část obsahuje cíl práce, výzkumné otázky a metodologii výzkumu. Průběh terapií v rámci mého výzkumu s technologií HandTutor je prezentován dvěma kasuistikami osob po poškození mozku. Výsledkem výzkumu je zaznamenání změn v parametrech naměřených technologií HandTutor. Změny jsou doloženy v grafech a obrazové dokumentaci. V závěru práce jsou shrnuty odpovědi na výzkumné otázky popisující i problémy, které se mohou vyskytnout při používání této technologie. Tato práce slouží k počátečnímu seznámení s technologií HandTutor, specifikuje její využití v ergoterapii osob po poškození mozku a doporučuje hlubší výzkum analýzy diagnostických dat v rámci objektivního hodnocení. Klíčová slova: HandTutor ergoterapie poškození mozku horní končetina objektivní hodnocení
|
|
|
Compression and analysis of digital video signals
Grúbel, Michal ; Slanina, Martin (oponent) ; Kratochvíl, Tomáš (vedoucí práce)
This bachelor's thesis deals with technical parameters of chosen algorithms for video compression, especially MPEG-1, MPEG-2, MPEG-4 Part 14 and DivX. Whitin it there was created a special software in Matlab that compares frames differences between reference and evaluated sequence. For this purpose there were recorded short test sequences with different properties in time and frequency domain, which recording, compressing, decompressing and decompiling to single frames are described and shown in detail. The results of evaluation are processed in graphs and then described in writing. In final overall evaluation is stated which algorithm for video compression is optimal for which type of sequences that differ in properties in time and frequency domain.
|
host ::
RSS.