An AR home experience method in a large scene

A technology of large scenes and algorithms, applied in the field of AR home experience

CN109613974AActive Publication Date: 2019-04-12XIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-04-12
Patent Text Reader

Abstract

The invention discloses an AR home experience method in a large scene. On the basis of combination of a natural feature identification-based three-dimensional registration method and a binocular tracking positioning and local mapping method, the camera attitude is estimated by using feature points of a real-time scene and corresponding three-dimensional points thereof under the binocular trackingpositioning and local map construction technology. According to the mode, on-site environment features shot in real time are used as recognition tracking objects, a virtual home model can still be normally positioned and tracked under the condition that no identification graph exists, the problems that an existing AR home experience application is small in use range and poor in stability are solved, and therefore the AR home experience of virtual and real fusion can be met in a wider range and more truly.
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Description

technical field

[0001] The invention belongs to the field of augmented reality technology, and in particular relates to an AR home experience method in a large scene. Background technique

[0002] Augmented reality technology (AR) renders virtual objects in real scenes, produces the effect of virtual and real fusion, and enhances people's sensory experience. Among them, the research on AR home experience technology is to simulate the real home experience process by placing three-dimensional virtual items in the user's room, which solves the problem of not being able to preview the effect of home items placed at home in advance when choosing home items in shopping malls.

[0003] The AR home experience application uses the identification map of the proposed item to complete the three-dimensional registration of the virtual object. This technology requires that the identification map must be kept in the best field of view of the camera. When the camera is far away from the lo...

Examples

Embodiment

[0205] In this embodiment, an AR home experience system suitable for large scenes is designed on the basis of the AR technology of natural feature identification and binocular tracking positioning and local mapping technology. When using the system, place the identification map on the target position, and the user uses a binocular camera to identify the home identification map. After successful identification, three-dimensional virtual household items will appear on the home identification map. At this time, the system will switch to large In the environment tracking and positioning and local mapping mode, the system will use the built environment map as the identification object to locate the virtual home items, and the virtual home can still remain in the environment without the identification map. This system has changed the traditional home experience, and at the same time, it can be applied to larger scenarios, expanding the scope of use of AR for map recognition, and has ...