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Anxiety levels of partially sighted were compared with totally blind people. Using the Anxiety Scale for the Blind, the primary hypothesis tested was that the partially sighted would manifest more anxiety than would the totally blind. The study was designed to ascertain whether the primary hypothesis would hold within the structure of this study, and to obtain information useful in future anxiety studies of the visually handicapped. A residential center for the blind furnished subjects, facilities, and biographical data. The primary hypothesis lacked statistical significance at the .05 level as did comparisons of anxiety levels by age, sex, economic need, and age at onset. The use of a different instrument may be indicated for future studies.

L’instruction des ADV (Aveugles et Déficients visuels) sous-tend leur apprentissage et leur intégration aussi bien scolaire que sociale, et est fondée sur des politiques mises en œuvre dans divers pays. En France et dans d’autres pays, sont conçues au profit des ADV des politiques d’intégration dont celles en milieu ouvert et en milieu spécialisé. Les études de terrain en France et en Tunisie montrent, qu’avec de supports et de matériels spécifiques, les ADV ont pu apprendre les mathématiques en concrétisation de ces politiques d’intégration. / Teaching the BVI (Blind and Visually Impaired) is the foundation of their learning and integration in both school and society, and is based on policies implemented in various countries. In France and in other countries, integration policies, in an open and specialized setting, are formed for the BVI. Field studies in France and in Tunisia show that with specific media and materials, the BVI were able to learn Math, thus concretizing these integration policies.

As we navigate the world, for example when driving a car from our home to the work place, we continuously perceive the 3D structure of our surroundings and intuitively recognise the objects we see. Such capabilities help us in our everyday lives and enable free and accurate movement even in completely unfamiliar places. We largely take these abilities for granted, but for robots, the task of understanding large outdoor scenes remains extremely challenging. In this thesis, I develop novel algorithms for (near) real-time dense 3D reconstruction and semantic segmentation of large-scale outdoor scenes from passive cameras. Motivated by "smart glasses" for partially sighted users, I show how such modeling can be integrated into an interactive augmented reality system which puts the user in the loop and allows her to physically interact with the world to learn personalized semantically segmented dense 3D models. In the next part, I show how sparse but very accurate 3D measurements can be incorporated directly into the dense depth estimation process and propose a probabilistic model for incremental dense scene reconstruction. To relax the assumption of a stereo camera, I address dense 3D reconstruction in its monocular form and show how the local model can be improved by joint optimization over depth and pose. The world around us is not stationary. However, reconstructing dynamically moving and potentially non-rigidly deforming texture-less objects typically require "contour correspondences" for shape-from-silhouettes. Hence, I propose a video segmentation model which encodes a single object instance as a closed curve, maintains correspondences across time and provide very accurate segmentation close to object boundaries. Finally, instead of evaluating the performance in an isolated setup (IoU scores) which does not measure the impact on decision-making, I show how semantic 3D reconstruction can be incorporated into standard Deep Q-learning to improve decision-making of agents navigating complex 3D environments.

<p>У дисертацији су приказани развој мултимодалног<br />система за образовну игру Луграм и истраживања<br />везана за његову примену у области редовног и<br />специјализованог основношколског образовања.<br />Извршено је испитивање утицаја Луграма на<br />повишење ефеката учења геометрије у редовној<br />разредној настави, испитивање да ли његову<br />прилагођену мултимодалну верзију могу да користе<br />слабовида и слепа деца и да ли се она може<br />користити за њихову обуку за самосталну употребу<br />рачунарске аудио верзије Луграма.<br />Утврђено је да Луграм има утицаја на пораст успеха<br />у учењу геометрије и да се прилагођена аудио-<br />тактилна верзија може користити у сврху обуке<br />слабовиде и слепе деце за самостално коришћење<br />аудио верзије игре.<br />Резултати истраживања су показали оправданост<br />приступа развоју Луграма као мултимодалног<br />система за игру и усмерили његов даљи развој ка<br />асистивном мултимодалном систему који поседује<br />способност говорне интеракције са корисником и<br />могућност прилагођења различитим категоријама<br />корисника.</p> / <p>U disertaciji su prikazani razvoj multimodalnog<br />sistema za obrazovnu igru Lugram i istraživanja<br />vezana za njegovu primenu u oblasti redovnog i<br />specijalizovanog osnovnoškolskog obrazovanja.<br />Izvršeno je ispitivanje uticaja Lugrama na<br />povišenje efekata učenja geometrije u redovnoj<br />razrednoj nastavi, ispitivanje da li njegovu<br />prilagođenu multimodalnu verziju mogu da koriste<br />slabovida i slepa deca i da li se ona može<br />koristiti za njihovu obuku za samostalnu upotrebu<br />računarske audio verzije Lugrama.<br />Utvrđeno je da Lugram ima uticaja na porast uspeha<br />u učenju geometrije i da se prilagođena audio-<br />taktilna verzija može koristiti u svrhu obuke<br />slabovide i slepe dece za samostalno korišćenje<br />audio verzije igre.<br />Rezultati istraživanja su pokazali opravdanost<br />pristupa razvoju Lugrama kao multimodalnog<br />sistema za igru i usmerili njegov dalji razvoj ka<br />asistivnom multimodalnom sistemu koji poseduje<br />sposobnost govorne interakcije sa korisnikom i<br />mogućnost prilagođenja različitim kategorijama<br />korisnika.</p> / <p>The dissertation presents the development of the multimodal system for the educational game Lugram and the research related to its application in the regular and specialized primary education. The examination of the effect which Lugram has on the improvement in learning geometry in the primary education is done, as well as the testing weather its adapted multimodal version can be used for the training of partially sighted and blind children for the independent use of the computer audio version of Lugram. It is established that Lugram has an influence on the improvement in learning geometry and that adapted audio-tactile version can be used for the training purposes for partially sighted and blind children. Results of the research have justified the approach in the development of Lugram as a multimodal system for the game. Moreover, they focus further development toward assistive multimodal system which has ability of the voice interaction with the user and also ability of adaptation to the different kind of users.</p>