Touch typing fingers keys3/25/2023 ![]() ![]() The rationales behind the proposed method are summarized as follows: Figure 1 shows a screen shot of the virtual keyboard interface within the virtual space. ![]() Such a nearly equivalent finger mapping (to QWERTY) makes the proposed method quite natural. The typing process is still the same that is, select the section by ray-casting and entering the letter with the “index finger” (as so in normal typing). ![]() There are sections with only one letter such as those for “t”, “g”, “b”, “y”, “h” and other special keys like the space bar and backspace (see Fig. 1) and press the third button with the ring finger. 2) is selected, the individual letter input is made through the corresponding finger button, For instance, to input “w”, the user points the left hand controller to the red section (in Fig. Once the section which includes the “w” key (colored in red in Fig. For instance, the letter “w” in the normal typing is to be entered by the left ring finger and similarly so by the corresponding finger button in the proposed scheme. Each section contains 4 letters that are mapped to four different fingers as used in the normal QWERTY typing, and thus four different finger buttons attached to the controller (see Fig. those that are equipped with sensors and few buttons for orientation/position control and discrete command input (we have used the motion controller from the HTC Vive). 1) aimed by the interaction controller, e.g. 2) which are first selected by the standard ray-casting technique (Fig. The Vitty QWERTY keyboard is divided in its layout into several sections (see Fig. While such an approach makes it possible to use the familiar conventional keyboard, the keyboard (on a fixed desktop location) is not fit for active usage while navigating in the VR space. One other interesting approach is capturing and segmenting out the imagery of a real keyboard and using hands (using a computer vision method), and blending it into the virtual scene. Combined with the lack of haptic feedback, such a scheme generally has low usability. However, these sensors are still not accurate enough, often need to be installed in the environment (making the input system not self-contained) and has a limited operating range. Recently, improved external finger tracking and sensing technologies have allowed the use of bare hands, relieving the user from having to use the cumbersome glove-like hand worn device. Such a non-QWERTY method would require extensive training, however. A slight variant is the hand-mounted but restricted set of buttons, each corresponding to an alphabetic key. A more direct method is to use a glove like device that attempts to sense individual finger movements and map them into the virtual space to realize virtual QWERTY style typing. The most popular and conventional way of text entry in VR setting is the “aim and shoot” style, in which a hand-held device or hand-mounted sensor is used to cast a virtual ray and select a particular key and making the final confirmation using a button (or other discrete input method). We only outline notable works in text entry for VR. There is a large amount of pervious work on various VR interaction techniques. We compare Vitty to the typing interface as available with the current popular VR interaction controllers. This way, Vitty emulates the usual method of typing while providing the important sense of haptic/tactile feedback through the individual buttons (See Fig. With Vitty, the same muscle memory (aided by the visual feedback) is applied to the VR interaction controller in a similar way to match the fingers to the desired keys. ![]() In the usual touch typing, one uses the muscle memory to reach and locate the wanted key with the eight fingers (the index to the pinky) from the home middle row. In this paper, we propose a simple solution: adding buttons, for each finger (except for the thumb), to the conventional interaction controller as an interface for virtual touch typing for a QWERTY style keyboard (hence, named “Vitty”). Moreover, its utility had been relatively low and overlooked, while today, its importance has risen significantly by the prevalence of social networking. However, there has not been a satisfactory solution to the task of text entry in VR due to the difficulty in tracking individual fingers and providing even a minimal haptic/tactile feedback. particularly for the generic tasks of navigation, object selection and manipulation. In fact, interactive techniques for VR have long been studied, e.g. Aside from the reality and immersion, the virtual experience is often contingent on natural and usable interaction as well. With the innovations for affordable head mounted displays (HMD), stable sensing and high-end computer graphics, immersive virtual reality (VR) has attracted much attention lately. ![]()
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