Sketched Reality: Sketching Bi-Directional Interactions Between Virtual and Physical Worlds with AR and Actuated Tangible UI

This paper introduces Sketched Reality, an approach that combines AR sketching and actuated tangible user interfaces (TUI) for bidirectional sketching interaction. Bi-directional sketching enables virtual sketches and physical objects to "affect" each other through physical actuation and digital computation. In the existing AR sketching, the relationship between virtual and physical worlds is only one-directional -- while physical interaction can affect virtual sketches, virtual sketches have no return effect on the physical objects or environment. In contrast, bi-directional sketching interaction allows the seamless coupling between sketches and actuated TUIs. In this paper, we employ tabletop-size small robots (Sony Toio) and an iPad-based AR sketching tool to demonstrate the concept. In our system, virtual sketches drawn and simulated on an iPad (e.g., lines, walls, pendulums, and springs) can move, actuate, collide, and constrain physical Toio robots, as if virtual sketches and the physical objects exist in the same space through seamless coupling between AR and robot motion. This paper contributes a set of novel interactions and a design space of bi-directional AR sketching. We demonstrate a series of potential applications, such as tangible physics education, explorable mechanism, tangible gaming for children, and in-situ robot programming via sketching.Comment: UIST 202

A influência do exercício físico sobre a hipertensão arterial

Orientador: Professor Floresval A. Bianchi FilhoMonografia (licenciatura) - Universidade Federal do Paraná. Setor de Ciências Biológicas. Curso de Educação Físic

Aspectos socioeconômicos em pacientes portadores de vícios de refração Socioeconomic aspects of refractive errors

Objetivo: Estudar os custos de correção dos vícios de refração em grupos de pessoas de distinto poder aquisitivo. Métodos: Os autores estudaram cinqüenta pacientes portadores de vícios de refração. Estes foram separados em dois grupos: grupo I com pacientes escolhidos de forma aleatória na primeira consulta ao ambulatório de Oftalmologia do Hospital Evangélico de Curitiba (HUEC), e grupo II com voluntários médicos do HUEC e acadêmicos de medicina da Faculdade Evangélica de Medicina do Paraná (FEMPAR). Foram analisados dados referentes a sexo, faixa etária, profissão, renda, grau de instrução, uso de correção (óculos ou lentes) e seu custo, consultas oftalmológicas. Os pacientes foram submetidos ao exame oftalmológico de rotina. Resultados: Encontramos no grupo I predominância de pacientes de meia idade (48,5 anos), com renda entre 1 a 5 salários mínimos (SM) e hipermétropes; e no grupo II, pacientes jovens (24,4 anos), com renda acima de 20 SM e míopes foram mais freqüentes. Conclusão: O gasto médio anual com óculos fica no mínimo em R$46,50 (0,3 SM); com lentes de contato, no mínimo R$ 196,66 (1,4 SM); e com cirurgia refrativa em R$ 800,00 (5,9 SM). O estudo sugere a cirurgia refrativa como boa indicação para ambos os grupos.<br>Purpose: To study the incidence of refractive errors in different socioeconomic populational groups and the cost of their correction. Method: 50 patients with refractive errors were divided into 2 groups. Group I was comprised of new outpatients at the Ophthalmic Center of the Hospital Universitário Evangélico de Curitiba (HUEC). Group II consisted of doctors and medical students of HUEC who volunteered for the study. Patients' sex, age, income, educational level, visual acuity, refractive errors and expenses for their correction were recorded. All patients were submitted to ophthalmologic examination. Results: Patients in group I averaged 48.5 years of age and a monthly income of about 5 times the Brazilian minimum wage (mw). Hyperopia was the most frequent refractive error. The corresponding findings for group II were 24.4 years of age, monthly income over 20 times mw and myopia was the most frequent. Conclusions: Yearly expenses amounted to a minimum of 0.3 mw for glasses, minimum of 1.4 mw for contact lenses and refractive surgery of 5.9 mw. We concluded that refractive surgery is a good indication for both groups in the long run