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Realidade aumentada

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Augmented Reality, often abbreviated as AR, is a tecnologia[2] that merges the physical, real-world environment with digital or computer-generated elements. This integration is achieved using advanced technologies such as object recognition and computador[3] vision. AR can be applied to a range of sensory experiences beyond just visual, providing a multi-sensory interaction. The technology is not limited to any specific sector and has found applications across various fields from gaming and entertainment to education, communications, and even medical practices. The hardware required for AR includes a processor, display, sensors, and input devices, and the display can range from optical projection systems to handheld devices and even eyeglasses. The design and development of AR focus on environmental and interaction design, aiming to enhance user experience[1] and system usability.

Definições de termos
1. user experience. User Experience (UX) is a broad term that encompasses every aspect of an end-user's interaction with a company, its services, or its products. This includes users' perceptions and responses, both emotional and cognitive, during and after the use of a system, product, or service. User Experience also involves users' beliefs, preferences, and behaviors. While usability, a component of UX, focuses on the practical aspects of a system, UX incorporates a holistic view of system use. User experience is a vital factor in increasing brand loyalty and customer base growth. Its history dates back to the Machine Age, with notable contributions from figures like Frederick Winslow Taylor, Henry Ford, and Donald Norman. Today, technology advancements continue to shape and expand the field.Developer Experience (DX) is the analog of UX for software developers. It represents the experience developers have with the tools, processes, and software they use in their work. A high-quality DX can significantly impact the overall user experience, thus contributing to the success of the product. The importance of DX is increasingly recognized in the field of software services, where ease of use can serve as a key market differentiator. This concept has been explored by various authors and researchers, and it's also emphasized in international standards like ISO 9241-210, which advocates for human-centered design.
2. tecnologia. A tecnologia, derivada das palavras gregas que significam ofício e conhecimento, é um termo amplo que se refere às ferramentas, máquinas e sistemas desenvolvidos pelo homem para resolver problemas ou cumprir objectivos. Com origem em ferramentas primitivas como os machados de pedra e a descoberta do fogo, a tecnologia evoluiu significativamente ao longo da história da humanidade. Foi fundamental em diferentes épocas, desde a invenção da roda e dos sistemas avançados de irrigação nas civilizações antigas até ao nascimento das universidades e da imprensa durante os períodos medieval e renascentista. A Revolução Industrial, no século XVIII, marcou uma mudança significativa na produção em massa e na inovação, dando origem a tecnologias modernas como a eletricidade, os automóveis e as plataformas de comunicação digital. Hoje em dia, a tecnologia faz parte integrante de vários aspectos da vida e da sociedade, impulsionando o crescimento económico e a mudança social, ao mesmo tempo que suscita preocupações sobre a segurança, a privacidade e os impactos ambientais. Espera-se que o futuro da tecnologia traga ainda mais avanços, prevendo-se que o aumento da inteligência artificial tenha implicações significativas no mercado de trabalho.
Realidade aumentada (Wikipédia)

Realidade aumentada (AR) is an interactive experience that combines the real world and computer-generated content. The content can span multiple sensory modalities, including visual, auditory, haptic, somatosensory e olfactory. AR can be defined as a system that incorporates three basic features: a combination of real and virtual worlds, real-time interaction, and accurate 3D registration of virtual and real objects. The overlaid sensory information can be constructive (i.e. additive to the natural environment), or destructive (i.e. masking of the natural environment). As such, it is one of the key technologies in the reality-virtuality continuum.

Photograph of the first AR system
Virtual Fixtures – first AR system, U.S. Air Force, Wright-Patterson Air Force Base (1992)

This experience is seamlessly interwoven with the physical world such that it is perceived as an immersive aspect of the real environment. In this way, augmented reality alters one's ongoing perception of a real-world environment, whereas realidade virtual completely replaces the user's real-world environment with a simulated one.

Augmented reality is largely synonymous with mixed reality. There is also overlap in terminology with extended reality e computer-mediated reality.

The primary value of augmented reality is the manner in which components of the digital world blend into a person's perception of the real world, not as a simple display of data, but through the integration of immersive sensations, which are perceived as natural parts of an environment. The earliest functional AR systems that provided immersive mixed reality experiences for users were invented in the early 1990s, starting with the Virtual Fixtures system developed at the U.S. Air Force's Armstrong Laboratory in 1992. Commercial augmented reality experiences were first introduced in entertainment and gaming businesses. Subsequently, augmented reality applications have spanned commercial industries such as education, communications, medicine, and entertainment. In education, content may be accessed by scanning or viewing an image with a mobile device or by using markerless AR techniques.

Augmented reality can be used to enhance natural environments or situations and offers perceptually enriched experiences. With the help of advanced AR technologies (e.g. adding computer vision, incorporating AR cameras into smartphone applications, and object recognition) the information about the surrounding real world of the user becomes interactive and digitally manipulated. Information about the environment and its objects is overlaid on the real world. This information can be virtual. Augmented Reality is any experience which is artificial and which adds to the already existing reality. or real, e.g. seeing other real sensed or measured information such as electromagnetic radio waves overlaid in exact alignment with where they actually are in space. Augmented reality also has a lot of potential in the gathering and sharing of tacit knowledge. Augmentation techniques are typically performed in real-time and in semantic contexts with environmental elements. Immersive perceptual information is sometimes combined with supplemental information like scores over a live video feed of a sporting event. This combines the benefits of both augmented reality technology and heads up display technology (HUD).

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