Mouse Gesture Recognition for Human Computer Interaction

In the field of Computer Science and Information Technology, it goes without saying that the focus has been shifted from the System Oriented software to the User Oriented software. Naturally, for such software applications, the importance of User Experience has gained a paradigm shift. The paper highlights the significance of a seamless interaction between the user and the computer by proposing a reliable algorithm for performing basic operations by drawing gestures with a mouse. It aims to embrace simplicity and quick access using gestures and providing effortless interaction for the uniquely abled users. The core of the algorithm comes from the Hidden Markov Model, which is emblematic of a probabilistic approach for gesture recognition. DOI: 10.17762/ijritcc2321-8169.15050

Tecnología asistiva para personas con discapacidad en miembros superiores: un mapeo sistemático de la literatura

El uso de la tecnología es en una herramienta fundamental en todos los ámbitos, no obstante, muchas personas con discapacidades suelen verse limitadas en el uso de ciertos dispositivos, por no contar con los medios para adquirirlos, o porque los que existen no se adaptan a sus necesidades. Para analizar esta situación se realizó un mapeo sistemático de la literatura sobre tecnología asistiva para personas con discapacidad en miembros superiores. Así que se procedió a crear y ejecutar un protocolo que establece un conjunto de preguntas a responder y el procedimiento para la búsqueda, y posteriormente la aplicación de filtros para la selección de artículos. Finalmente, se presenta un análisis que responder a las preguntas planteadas. En base a esto, se pudo concluir que la principal tendencia dentro del desarrollo de tecnología asistiva está en la producción de hardware especifico que funciona con software propio. Por otro lado, la creación de dispositivos que utilizan software ya existente es la segunda tendencia. También es destacable que es baja la cantidad de artículos que proponen el uso de hardware ya existente o de propósito general y la creación de software para estos. Por último, se pudo observar que el uso de inteligencia artificial en este campo todavía no es una tendencia.Sociedad Argentina de Informática e Investigación Operativ

Longitudinal Study of Two Virtual Cursors for People With Motor Impairments: A Performance and Satisfaction Analysis on Web Navigation

The lack of dexterity in the upper limbs of people with motor impairments may prevent the use of standard pointing devices, such as mice, to access graphical user interfaces. In these cases, pointing and clicking are usually performed by means of alternative devices such as joysticks, trackballs or standard keyboards. However, target acquisition can still be challenging for this group of people due to their physical condition. Based on previous works, we developed two virtual cursors: the novel cross cursor and the standard area cursor. They are devoted to assist two different groups of users with link selection within web pages: keyboard-only users, and joystick and trackball users, respectively. Both virtual cursors have been evaluated and compared with the original unassisted cursor in a longitudinal study. Eight people with motor impairments participated in an unsupervised experiment from their own personal computers at home. For a period of six weeks, each participant used both a virtual cursor and the original unassisted cursor to freely navigate the Web, and to perform predefined target acquisition tasks. Interaction data was automatically logged throughout the study along with subjective assessments concerning the usability of the virtual cursor being tested. Results show significant improvements for both virtual cursors in six of the seven cursor parameters studied, albeit with performance variations between some participants. The virtual cursors were extensively used for free web navigation and in their subjective assessments both were positively endorsed by participants who also put forward improvement suggestions for future developments

A study on interaction-driven comparison between analog and digital gaming control interface on smartphone

This study aims to find empirical evidence of effectiveness levels: comfort, efficiency, and accuracy between analog and digital interface on smartphone game control through the two different usability tests: 1) A Pilot Study for measuring a correlation contrast with direct and indirect input control from six participants in a small group; 2) A Main Study for finding the effectiveness of “Tap-only affords” basis between a digital and analog input control. The usability test was analyzed by both qualitative and quantitative research methods. There was a total of the 81 participants who were divided into two big groups for comparing one hand and two hands input control, and nine participants per each group implemented a smartphone game based on different input control tasks. The findings appear that direct touch screen interaction is more effective on two hands input control tasks while using an indirect physical input control was more effective on one hand touchscreen