Unmarked augmented reality system and target tracking method thereof
An augmented reality, system target technology, applied in the field of markerless augmented reality system, can solve problems such as application scenarios and time constraints, achieve good tracking effect, and widely adapt to scenarios.
Active Publication Date: 2014-03-12
SHENZHEN INST OF ADVANCED TECH
View PDF3 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, in practical applications, this marker-based augmented reality system must prepare markers in advance and store the markers in the database. Therefore, this precondition limits its application scenarios and time.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] Hereinafter, the present invention is explained by describing the embodiments with reference to the drawings, but the present invention is not limited or restricted to the embodiments.
[0022] figure 1 is a block diagram showing the structure of a markerless augmented reality system according to an embodiment of the present invention.
[0023] refer to figure 1 , the markerless augmented reality system according to the embodiment of the present invention may include a feature point extraction unit 110 , a tracking point extraction unit 120 , a mapping point generation unit 130 and a tracking point screening unit 140 .
[0024] The marker-free augmented reality system detects and tracks the feature points of the image, and does not need to prepare markers in advance and store the markers in the database, so a marker-less augmented reality system can be constructed.
[0025] First, it is necessary to perform feature point detection on the image and extract the detected...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an unmarked augmented reality system which comprises a feature point extraction unit, a tracking point extraction unit, a mapping point generation unit and a tracking point screening unit. The feature point extraction unit is used for extracting multiple feature points from a first frame of an image generated by shooting equipment, the tracking point extraction unit is used for utilizing the extracted feature points to extract multiple tracking points from each frame apart from the first frame of the image generated by the shooting equipment, the mapping point generation unit is used for mapping the feature points into each frame apart from the first frame to generate multiple mapping points of each frame apart from the first frame, the tracking point screening unit is used for comparing a distance between each tracking point of each frame apart from the first frame with a corresponding mapping point with a preset distance threshold value and judging whether or not to exclude the tracking point on the basis of a comparison result. The invention discloses a target tracking method of the unmarked augmented reality system.
Description
technical field [0001] The invention relates to a markerless augmented reality system for feature extraction and tracking of images generated by a shooting device and a markerless augmented reality system target tracking method. Background technique [0002] Augmented Reality (Augmented Reality, AR) is a new technology developed on the basis of virtual reality technology, which superimposes virtual objects into actual images through computer systems to enhance the user's sensory experience, thereby enhancing reality. [0003] At present, many augmented reality systems are based on pre-prepared marks (such as two-dimensional codes) to obtain feature information of real objects containing actual images, so as to obtain the positional relationship between the camera and the real object. However, in practical applications, such a marker-based augmented reality system must prepare markers in advance and store the markers in a database. Therefore, this precondition limits its appl...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
Inventor 樊春玲邓亮冯良炳
Owner SHENZHEN INST OF ADVANCED TECH