Thiago Valle

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This work proposes the use of a low-cost software based breathing interface for mobile phones as an alternative interaction technology for people with motor disabilities. It attempts to explore the processing of the audio from the microphone in mobile phones to trigger and launch software events. A proof of concept of this work is demonstrated by the(More)
This work proposes the use of a low-cost software based puff controlled spin keyboard for mobile phones as an alternative interaction technology for people with motor disabilities. It attempts to explore the processing of the audio from the microphone in mobile phones to select characters from a spinning keyboard. A proof of concept of this work is(More)
This work proposes progresses on the use of a breathing based text input software for mobile as an alternative interaction technology for people with motor disabilities. It attempts to explore the processing of the audio from the microphone in mobile phones to select characters from dynamically generated keyboard. A proof of concept of this work is(More)
In everyday social interactions, humans depend on visual cues to fully communicate, and in an online text chatting scenario, the lack of sight interferes with the quality of such interactions. Since crucial nonverbal communication is comprised of facial gestures and expressions, text chat users are at a disadvantage when engaging in interpersonal(More)
Usability tests for mobile phones software present several consistent obstacles. The issue of observing users' interaction within a controlled and supervised environment versus unsupervised field tests is a significant one. Additionally, the burden of frequently time-consuming and expensive usability tests for small software development teams are evident.(More)
The evaluation of usability in mobile software provides valuable measures about the quality of these applications, which assists designers and developers in identifying opportunities of improvement. But analyzing the usability of mobile user interfaces can be a tiresome assignment. It might be extensive and require expert evaluation techniques such as(More)
Assistive solutions have been investigated and established as an important field in human–computer interaction. Several forms of assistance have been produced for technology consumers with particular disabilities that lessen their capabilities to achieve inputting text on some devices. Several alternative interfaces for users with motor disabilities have(More)