Method for selecting target in virtual three-dimensional scene based on axial rotation of pen type device

Abstract

The invention provides a method for selecting a target in a virtual three-dimensional scene based on axial rotation of a pen type device, and belongs to the field of human-computer interaction. The method comprises: an ultrasonic three-dimensional positioning system obtaining coordinates of the pen type device and posture information of the pen type device; constructing a virtual selection ray inthe virtual three-dimensional scene; and according to the dynamic refreshing of the distance from the virtual ray to all targets in the three-dimensional scene, obtaining the selection trend of the user, carrying out selection of a to-be-confirmed selection target, and according to the joint judgment of the axial rotation action and the hovering operation carried out by the hand-held pen type device of the user, realizing the selection operation of the target in the virtual three-dimensional scene. The method has the advantages that the freedom of operation of the user in the three-dimensionalspace is considered, single-hand accurate selection is achieved on the basis of the natural rotation gesture of the user for operating the pen type device, and the interaction efficiency of the userand the virtual reality system is improved.

Description

technical field [0001] The invention belongs to the field of human-computer interaction, and in particular relates to a target selection method in a three-dimensional virtual space based on the axial rotation of a pen device. Background technique [0002] With the expansion of the human-computer interaction interface from two-dimensional to three-dimensional, the enrichment of human-computer interaction channels and the emergence of multi-dimensional input data, the development of three-dimensional user interface presents diversity and complexity. Compared with the interactive operation in the two-dimensional space, the user operation in the three-dimensional virtual space is more free, but in the three-dimensional state, the freedom is too high, the lack of support and the addition of depth information lead to the decline of the control accuracy in the three-dimensional virtual space. [0003] Three-dimensional space target selection is one of the most basic operations in t...

AI Technical Summary

Problems solved by technology

This method expands the range of user selection, and the user can select selectable targets within the reach of the viewing angle, but the difficulty of target selection at different depths in the line of sight direction is different, and the patent does not explain the selection mechanism

[0007] The Chinese patent "A Three-dimensional Large-Space Multi-Channel Pen Interactive System" (Application No. 201611157044.0) discloses a three-dimensional large-space pen interactive system, which integrates a hardware system for multi-channel interactive operation in a three-dimensional operating environment, and Without further research and explanation on the three-dimensional interaction method, the Chinese patent "A Method for Selecting Objects in Virtual Three-dimensional Space Based on Pen-style Interactive System" (application number 201710270095.2) discloses a method based on three-dimensional large space The three-dimensional space target selection method of the pen-type interactive system uses the three-dimensional positioning data and attitude data of the electronic pen of the pen-type interactive device to perform the conversion of the manipulation position in the three-dimensional virtual space and the selection of the target object, based on the effects brought by the user's manipulation of the pen-type interactive device The six-degree-of-freedom data change completes the selection operation in the virtual environment, in which two operation modes are given for deep target selection and target selection beyond the user's operation space, but the patent also provides a detailed overview of the final selection confirmation mechanism. Errors caused by factors such as hand shake and other factors have brought certain difficulties in the selection of targets in virtual three-dimensional space.

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