[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-201428-105":59,"doc-detail-201428-en":131},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":124,"head_meta":126,"extra_data":128,"updated_unix":130},105,"en","ucat-ubiquitous-context-awareness-tools-for-the-blind","UCAT - UBIQUITOUS CONTEXT AWARENESS TOOLS FOR THE BLIND","","This master’s thesis addresses the persistent lack of environmental information experienced by people with visual impairments. It contrasts the reliance of sighted users on vision with the challenges faced by blind users in understanding locations, proximity, objects, and social presence. Existing mobile and research efforts provide partial sensing and communication capabilities, yet they typically lack a complete, accessible solution for implicit, context-aware perception. The project centers on identifying information needs through a preliminary user interview.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/ucat-ubiquitous-context-awareness-tools-for-the-blind/201428/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/ucat-ubiquitous-context-awareness-tools-for-the-blind/201428.png","ImageObject",300,407,{"name":92,"@type":93},"Margaret","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-09-04",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",11,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What problem does the thesis focus on for blind users?","Question",{"text":113,"@type":114},"Blind people experience a constant lack of information about the environment around them, including aspects such as location, objects, and social presence. The thesis targets this gap by aiming to support perception in context.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"Why are current mobile and research solutions considered insufficient?",{"text":118,"@type":114},"Although modern devices and prior projects offer sensing and assistive capabilities, they usually do not provide a complete and fully accessible solution for blind users. The thesis highlights missing coverage for implicit, context-based perception.",{"name":120,"@type":111,"acceptedAnswer":121},"How was the project requirements work conducted?",{"text":122,"@type":114},"A preliminary interview was conducted to understand limitations and information needs when blind users face social environments. The interview gathered a user profile, technology usage, and scenarios where environmental perception is limited.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},201428,1788533581,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":140,"language":141,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":142,"faqs":143,"seo_title":144,"seo_description":67,"update_tm":130,"read_time":145,"preview_page_count":4},137451207643,"https://ap-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2","UNIVERSIDADE DE LISBOA Faculdade de Ciências  \nDepartamento de Informática  \nUCAT  \nUBIQUITOUS CONTEXT AWARENESS TOOLS FOR THE BLIND  \nIvo Rafael Pereira Rodrigues  \nDISSERTAÇÃO  \nMESTRADO EM ENGENHARIA INFORMÁTICA  \nEspecialização em Sistemas de Informação  \nUNIVERSIDADE DE LISBOA  \nFaculdade de Ciências Departamento de Informática  \nUCAT  \nUBIQUITOUS CONTEXT AWARENESS TOOLS FOR THE BLIND  \nIvo Rafael Pereira Rodrigues  \nDISSERTAÇÃO  \nTrabalho orientado pelo Prof. Doutor Tiago Guerreiro  \nMESTRADO EM ENGENHARIA INFORMÁTICA  \nEspecialização em Sistemas de Informação  \nAcknowledgements  \nI would like to thank first and foremost my thesis adviser professor Tiago Guerreiro for accepting to be my mentor for this thesis and enduring with me throughout the year as well as professor Luis Carriço for accepting me and guiding me through the thesis withinvaluable input. A mention to Luis Duarte also for the help provided discussing ideas and providing input whenever it was needed.  \nMy family for providing me with the platform and the ability to be able to do this work and have my master degree, without family we can only go so far in life.  \nColleagues that through the year shared the journey and always provided a source of knowledge and information when debating the project as well as the much needed moments to clear my head and calm down for a bit when needed.  \nA thank you also for the FCUL for being a great place to study and grow both on a personal and academic level, the Lasige group who welcomed me during my thesis in particular the Absinth group which provided with, in my opinion, one of the best interactions and participation they could have possibly give for someone who is working on a thesis.  \nLast but not least friends. These are always the pillars of our stability the people we look for when we need anything, and they were always there whenever I needed them.  \nResumo  \nAs pessoas com deficiências visuais sofrem de uma constante falta de informação sobre o ambiente que as rodeia. Esta informação pode estar relacionada com locais, objetos eaté mesmo pessoas. A inexistência de ajuda para combater esta falta de informação faz com que surjam situações em que uma pessoa cega só consegue resolver o seu problemarecorrendo a ajuda de outras pessoas. São exemplos a identificação da presença de pessoas, informação escrita o e outros detalhes de uma rotina diária. Os dispositivos móveis dos dias de hoje vêm equipados com uma grande extensão de sensores que possibilitam colmatar algumas destas falhas.  \nUma pessoa normovisual está habituada a recorrer à visão para obter informação sobre o ambiente que a rodeia. Sem grande esforço pode obter informação sobre proximidade de pessoas ou a sua movimentação. A mesma facilidade ocorre em reconhecer objetos ou orientar-se e compreender os locais onde se encontra. Esta informação é algo que pessoas cegas têm dificuldade em obter.  \nSituações normais como identificar quem são as pessoas que os rodeiam torna-se uma tarefa mais complicada especialmente se estas não seguirem as regras de etiqueta sociale fizerem notar a sua presença. A acessibilidade nos dispositivos móveis é uma área que ainda está a ser explorada e existem diversas possibilidades de uso que estes dispositivos permitem que ainda não são acessíveis para pessoas cegas.  \nCada vez mais os dispositivos móveis, em particular desde a chegada do iPhone, fornece a utilizadores cegos a possibilidade de acederem aplicações sociais, de lazer ede produtividade. Outros sistemas operativos e dispositivos seguem pelo mesmocaminho. O conjunto de características disponibilizadas por estes dispositivos nomeadamente para a localização, comunicação, armazenamento e processamento permitem criar ferramentas de perceção do ambiente para cegos cada vez mais ricas. Existem diversos trabalhos realizados para melhorar a orientação, localização, reconhecimento de objectos e proximidade (na maioria dos casos a obstáculos) . Muitos deles focam-se em ambiente","cbCaihUZXgZjYbse","https://ap.wps.com/l/cbCaihUZXgZjYbse","pdf",1107715,93,"English","# Acknowledgements\n# Resumo\n## Context and problem statement\n## Existing solutions and gaps\n## Project focus and methodology\n## Preliminary interview and user needs","[{\"question\":\"What problem does the thesis focus on for blind users?\",\"answer\":\"Blind people experience a constant lack of information about the environment around them, including aspects such as location, objects, and social presence. The thesis targets this gap by aiming to support perception in context.\"},{\"question\":\"Why are current mobile and research solutions considered insufficient?\",\"answer\":\"Although modern devices and prior projects offer sensing and assistive capabilities, they usually do not provide a complete and fully accessible solution for blind users. The thesis highlights missing coverage for implicit, context-based perception.\"},{\"question\":\"How was the project requirements work conducted?\",\"answer\":\"A preliminary interview was conducted to understand limitations and information needs when blind users face social environments. The interview gathered a user profile, technology usage, and scenarios where environmental perception is limited.\"}]","UCAT - UBIQUITOUS CONTEXT AWARENESS TOOLS FOR THE BLIND | PDF",234]