Facebook, Inc. (Menlo Park, CA)
The present disclosure pertains to augmented and virtual reality systems and specifically, to interfaces that utilize a reference plane to present virtual objects of interaction to the user.
Head-mounted displays (HMDs) are used for presenting information to users in an experience that is immersive. The information could be traditional still images or videos but often includes virtual reality (AR) or virtual reality (VR). HMDs are useful in many areas, such as engineering, medicine, aviation gaming, and aviation.
HMDs can detect objects in real time when showing AR or VR images to users. For instance the HMD monitors the user’s location relative to objects in the real world. To display virtual objects that the user caninteract with the HMD might need to identify and continuously monitor the user as well as a variety of objects in the real-world. This requires a lot of resource and can cause delays in the system or hinder the capabilities of an HMD.
A HMD (head-mounted display) that shows VR (VR) also known as augmented reality, presents pictures to users. The HMD can show virtual interaction objects such as a keyboard and trackpad for the user. The HMD tracks the movements of the hand of the user and lets them interact with virtual objects. For instance, a user can type messages by interacting via an interactive keyboard.
The virtual objects of interaction display for the user to view on a reference plane. When placing their hands into predetermined forms, users can decide the preferred size, orientation, and the position of the reference plane. A predetermined shape, such as is a hand that is placed on a surface. If the fingers of the user are in predetermined shapes, the HMD tracks them and generates the reference plan. For instance when the HMD creates a reference plane below the hands of the user if the fingertips of the user are at a minimum distance (e.g., indicating the hands of the user are flat). Another example is that the location of the reference plane is determined by the position of three or more fingers. In this case the reference plan is generated if the thumb index middle and ring fingers are on a plane. The reference plane can be established during the calibration process and can be created any amount of times. Users may want to work with virtual objects that are on a different surface.
After a first hand forms a predetermined shape at the location of the reference plane, it is able to be confirmed. If the reference plane isn’t in the location desired and the user desires to interact with virtual objects via virtual interaction and the desired location is not found, it can be confirmed by a second hand that forms an additional predetermined shape in the desired location. The HMD may show an image or two to help the user place the second predetermined shape in the location of the reference plane. The HMD could create a second reference plan at the location of the second predetermined form to check if the second predetermined form is at the same location as the reference. The HMD then determines if the reference plane is the same as the reference plan for the second one by determining if the two planes are identical or within a particular distance from each other.
After the reference plane has been defined After that, the HMD can display virtual objects of interaction on the reference plane. The HMD determines the form and location of the hands of the user relative to the reference plane in order to permit users to interact with the virtual object. The tap of a finger on a section of the reference surface could be a function for a virtual trackpad. Apart from that, the reference plane is defined based on hand shapes of the user. Furthermore, a userinteracts with virtual interaction objects by making hand gestures in relation to the reference plane. This is how the reference plane is established and the user can interact with virtual objects with the HMD identifying objects or surfaces in the real world(e.g. via object recognition).Click here to view the patent on USPTO website.
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