Novel infrared index point coding manner applied to large-scale tracking system
A technology of tracking system and coding method, which is applied in the field of new infrared marker point coding method, can solve the problems of high price, high cost, late large-scale tracking technology, etc., and achieve high accuracy, convenient production and installation, and fast recognition speed Effect
Active Publication Date: 2011-04-06
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF4 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, a variety of commercial location tracking products based on different sensors have been developed abroad, but the cost is generally high and expensive
Domestic research on large-scale tracking technology started relatively late, and there is a big gap with foreign countries in terms of theory and practice
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
[0019] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0020] figure 1 It is the marking point used in the present invention, the left side of the figure is a dotted marking point, and the right side is a linear marking point.
[0021] The dot marker is composed of one infrared LED, and the linear marker is composed of multiple infrared LEDs arranged equidistantly. Point-like markers appear as dot-like features in infrared images; although linear markers are composed of discrete infrared LEDs, they still appear as continuous linear features in infrared images.
[0022] figure 2 It is a coding map composed of main and auxiliary marker points in the present invention.
[0023] Each auxiliary marking point is composed of 4 linear marking points, and the installation directions of two adjacent linear marking points are perpendicular to each other. The intersection of the extension lines of the four linear marker points ...
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 relates to the technical field of large-scale tracking, in particular to a novel infrared index point coding manner applied to a large-scale tracking system. The invention provides a main index point coding manner and a secondary index point coding manner formed by infrared LEDs. Each secondary index point consists of four linear index points; the installing orientations of two adjacent linear index points are vertical to each other; the secondary index point is used for dividing the image into a plurality of adjacent square areas. The main index point consists of point-shaped index points for coding the square areas which are cut by the secondary index point, dividing the square areas into a plurality of sub areas according to a certain manner and endowing an unique main index point coding to the square area by placing the point-shaped index points on the central positions of the different sub areas. The infrared index point coding manner is convenient to realize, and has various coding types, low error rate, high recognizing rate, high accuracy and strong robustness. The infrared index point coding manner is applied to the large-scale tracking system.
Description
technical field [0001] The invention relates to the technical field of large-scale tracking, in particular to a novel infrared marker coding method applied to a large-scale tracking system. Background technique [0002] Large-scale tracking technology, especially high-precision, real-time wide-range optical tracking technology, plays an important role in virtual reality and augmented reality systems, and is the basis and key technology of the system. At present, a variety of commercial location tracking products based on different sensors have been developed abroad, but the cost is generally high and expensive. Domestic research on large-scale tracking technology started relatively late, and there is a big gap with foreign countries in terms of theory and practice. [0003] Large-scale tracking technology research is an inevitable requirement for domestic augmented reality and virtual reality technology research, and it is also a necessary condition for my country to form a...
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): G06K9/00
Inventor 王涌天刘鑫刘越郭庆
Owner BEIJING INSTITUTE OF TECHNOLOGYGY