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Calibration method of correlation between single line laser radar and CCD (Charge Coupled Device) camera

The invention discloses a calibration method of correlation between a single line laser radar and a CCD (Charge Coupled Device) camera, which is based on the condition that the CCD camera can carry out weak imaging on an infrared light source used by the single line laser radar. The calibration method comprises the steps of: firstly, extracting a virtual control point in a scanning plane under the assistance of a cubic calibration key; and then filtering visible light by using an infrared filter to image infrared light only, carrying out enhancement, binarization treatment and Hough transformation on an infrared image with scanning line information, and extracting two laser scanning lines, wherein the intersection point of the two scanning lines is the image coordinate of the virtual control point in the image. After acquiring multiple groups of corresponding points through the steps, a correlation parameter between the laser radar and the camera can be solved by adopting an optimization method for minimizing a reprojection error. Because the invention acquires the information of the corresponding points directly, the calibration process becomes simpler and the precision is greatly improved with a calibrated angle error smaller than 0.3 degree and a position error smaller than 0.5cm.
Owner:NAT UNIV OF DEFENSE TECH

Three-dimensional house decorating method and system

The invention provides a three-dimensional house decorating method. The three-dimensional house decorating method comprises the following steps that house information input by a user is received, wherein the house information comprises house type information, house size information, room distribution information and house height information; a three-dimensional house model is generated according to the house information; an operational order sent by the user is received, and house decorating, product purchasing and cost budgeting of the three-dimensional house model are conducted according to the operational order of the user. The invention further provides a three-dimensional house decorating system. By means of the three-dimensional house decorating method and system, the house information input by the user can be received, a convenient way for inputting a door model figure is provided for the user, the three-dimensional house model can be generated according to the house information input by the user, the user can experience the real decorating effect conveniently, the house decorating, product purchasing and cost budgeting can be conducted according to the operational order of the user, so that the user can decorate and design the house conveniently, purchase needed products, and get the real cost budget.
Owner:WUHAN WONIU SCI & TECH CO LTD
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