Ultrasonic aerial tactile rendering method based on three-dimensional grid model

Abstract

The invention relates to an ultrasonic aerial tactile rendering method based on a three-dimensional grid model, and belongs to the field of human-computer interaction and virtual reality. Positioningof a hand ultrasonic focus point and description of local features of a three-dimensional graph are completed in a grid model mode. Grid vertexes of the three-dimensional model obtain three-dimensional coordinates through specific software; and according to the finger joint coordinates and the distance information between the palm plane and the vertex of the three-dimensional graph grid, positioning of a hand ultrasonic focus point, is completed and ultrasonic focusing is performed on positions such as edges and vertexes of the three-dimensional graph by adopting different intensities and frequencies to complete rendering of local features of the three-dimensional graph. The method has the advantages that the hand part is divided into the finger part and the palm part, ultrasonic focusingis conducted on the finger part and the palm part respectively, ultrasonic focusing is conducted on edges, vertexes and other positions of the three-dimensional graph through different intensities andfrequencies, rendering of local features of the three-dimensional graph is completed, the recognition rate of a user for the three-dimensional graph is increased, and the trueness of the three-dimensional graph is further improved.

Description

technical field [0001] The invention belongs to the fields of human-computer interaction and virtual reality, and in particular relates to a three-dimensional grid model-based ultrasonic aerial tactile rendering method, which can complete the rendering of three-dimensional graphics through ultrasonic tactile sensation and improve the reality of the three-dimensional graphics. Background technique [0002] With the development of human-computer interaction technology, various human-centered efficient and natural human-computer interaction methods have emerged one after another. At the same time, various sensory feedbacks in the process of human-computer interaction have also developed. [0003] In the process of human-computer interaction, users often need to provide operation guidance or enhance user experience through various sensory feedback, such as: when using software for the first time, use text or language for guidance; when playing games, use vibration and sound to en...

AI Technical Summary

Problems solved by technology

However, on the basis of this method, the specific application of this method has yet to be explored, such as how to complete the tactile description of virtual three-dimensional objects by controlling the ultrasonic focus point, and the specific ultrasonic tactile description method for virtual three-dimensional objects has not yet been proposed. and

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