Types of Eye GazeĪs with head tracking and commit, eye gaze and commit means that the user looks at an object, maintains it for a specified time, and confirms the action with a voice command or gesture. We do not use a cursor because it can distract the user, it is better to use subtle highlights or small animations to indicate that the hologram is being selected. When the interactions that we design are based on eye tracking, we will use attentive holograms, they are objects that when looking at them show an effect to inform that the system correctly interpreted what the user is looking at. Microsoft recommendation for target size at a distance of 2 meters We could say that in Hololens 2 the gaze works as an input device, as it does in a computer the mouse.įor the most accurate and user-friendly interaction, the object should be no more than 2 meters away and its size should be between 5 and 10 cm. The device has eye-tracking cameras and at login, it performs an iris analysis to authenticate the user. It is done through a visual path tracking and has several interactions uses in Hololens 2. Eye-TrackingĮye-tracking is a technology that allows us to understand, as designers, what is the area in which the user is focusing and what is their intention. When the user keeps his head towards the object for a period of time, a cursor with some visual relevance is added. Head gaze and dwell. This interaction is indicated for those cases in which the user cannot use voice or gestures. Head gaze and commit. The user moves their head towards a specific object and complements the action with a voice command or a gesture. Also, it is a slow type of interaction for the user, but it can be very useful when the interaction requires a lot of precision. Using head tracking for a long period of time can cause fatigue and discomfort for people with cervical conditions. We should not rely on head tracking to obtain information about where the user is looking because they may be looking elsewhere. In order for the user to realize that head tracking is being used, we must use a visual clue or cursor that should be smaller than the objects so that it does not interfere with the action. When the user logs in, the holograms are positioned at the origin known as 0,0,0. Head tracking is used for the glasses to orient themselves in the wearer’s environment, detect the position of the head and determine the position of holograms in the real world. Eye-tracking (only available in Hololens 2).īoth technologies help to understand the FOV (user’s field of view).Head tracking (present in Hololens version 1 and 2).Hololens 2 have two key ways to detect the intention and focus of the user: It is necessary to carry out this calibration, for example, if it is the first time that the glasses are used or if the calibration profiles are deleted from the device.Īs with voice commands, whenever eye tracking functionalities are activated, the user has to accept the permissions. The glasses have a calibration system that makes the experience more comfortable since in this way both the alignment of the holograms and the hand tracking or interaction with the hands are customized to the physical characteristics of the user.
Thanks to the incorporation of eye-tracking, Hololens 2 can be used by different user profiles. This rectangular screen that the user watch is known as a holographic screen and allows him to see the digital content integrated into the room in which he is at that moment. Mixed reality in Hololens 2 is displayed through a small rectangular window that works with the helmet. They are ergonomically designed and those who wear glasses can use both without a problem. Hololens glasses have their own processor and the battery has an approximate autonomy between two and three hours. These glasses were released on the market in 2019 and are equipped with eye-tracking and hand tracking technology, which means they are capable of detecting the hands without using any additional device, this contributes to the user feeling freedom because they don’t have to hold any controllers to interact. We design appl ications for Hololens 2, which are Microsoft’s mixed reality glasses. 6 What Aspects Should We Pay Special Attention To When Using Eye-Tracking?Īt Plain Concepts, as the first Microsoft partner in Spain in mixed reality, we are specialized in developing customized solutions for those companies that decide to advance in technology.5 What Situations Are The Most Suitable To Use Eye-Tracking in HoloLens 2?.
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