METHOD FOR IMPLEMENTING VIRTUAL REALITY ROAMING PATH CONTROL

• US 20200134919A1
• Filed: 12/29/2019
• Published: 04/30/2020
• Est. Priority Date: 12/09/2019
• Status: Active Grant

• Current Assignee: Lesoft Technology (Beijing) Co., Ltd.
• Original Assignee: Lesoft Technology (Beijing) Co., Ltd.
• Inventors: ZHENG, Wei
• Granted Patent: US 11,049,319 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 3/011 Arrangements for interaction with the human body, e.g. for user immersion in virtual reality blind teaching G09B21/00
• CPC Class Codes: G06T 19/003 Navigation within 3D models or images
• CPC Class Codes: G08G 9/02 Anti-collision systems

Abstract

Disclosed is a method for implementing virtual reality roaming path control, a tag of a passing grid cell is detected from a start point of the roaming path when a roamer roams in the virtual passage, if the passing grid cell is tagged as an impassable cell, then it is determined to be impassable and another grid cell is selected for re-detection; if the passing grid cell is tagged as a passable cell, then whether the roamer is the preset roaming object is further detected, according to the roaming control label for the passable cell, if not, then it is determined to be impassable and another grid cell is selected for re-detection, if yes, then it is determined to be passable and continued to select the next passing grid cell for detection; and a passable roaming path is generated according to a detection result.

Claims

1. A method for implementing virtual reality roaming path control, comprising the following steps of:

decomposing a virtual passage into various grid cells;

tagging the grid cells as passable cells and impassable cells;

setting a roaming control label for each of the passable cells, wherein the roaming control label indicates a preset roaming object is passable;

detecting a tag of a passing grid cell from a start point of the roaming path when a roamer roams in the virtual passage, wherein, if the passing grid cell is tagged as an impassable cell, then determining to be impassable and selecting another grid cell for re-detection;

if the passing grid cell is tagged as a passable cell, then further detecting whether the roamer is the preset roaming object, according to the roaming control label for the passable cell, if not, then determining to be impassable and selecting another grid cell for re-detection, if yes, then determining to be passable and continuing to select the next passing grid cell for detection; and

generating a passable roaming path according to a detection result.

2. The method according to claim 1, further comprising the following steps of:

detecting pixel coordinates of a current grid cell and a previous grid cell which are passable;

determining a roaming speed according to the detected pixel coordinates;

determining whether the roaming speed exceeds a preset speed, and controlling to reduce the roaming speed after the preset speed is determined to be exceeded.

3. The method according to claim 1, further comprising the following steps of:

setting an attribute value of the roaming control label, wherein the attribute value of 0 indicates to be impassable, the attribute value of 1 indicates to be passable;

when it is detected that the roamer is a preset roaming object, further detecting the attribute value of the roaming control label, if it is detected that the attribute value of the roaming control label is 1, then determining to be passable and continuing to select the next passing grid cell for detection, if it is detected that the attribute value of the roaming control label is 0, then determining to be impassable and selecting another grid cell for re-detection.

4. The method according to claim 1, further comprising the following steps of:

dividing the generated roaming path into a plurality of roaming path sections according to the width of the passage; and

setting different resolutions for each roaming path section, and reconstructing a roaming path section according to the resolution of the roaming path section.

5. The method according to claim 1, wherein, the virtual passage comprises virtual highway, virtual waterway and virtual pedestrian passageway.