9 results about "Structured light" patented technology

A camera shooting system disclosed by the present invention comprises a first camera shooting device, a second camera shooting device, a laser projection device and a processor. The laser projection device is used to project the structured light patterns of the invisible laser to a common field of view of the first and second camera shooting devices, the first camera shooting device is used to acquire a first visible light color image and a first invisible light image in the common field of view, and the second camera shooting device is used to acquire a visible light gray-scale image and a second invisible light image in the common field of view, and the processor is used to utilize the first visible light color image and the visible light gray-scale image to synthesize a second visible light color image and utilize the first invisible light image and the second invisible light image to calculate a depth image. According to the present invention, the high-quality color image and depth image of a target can be acquired with a smaller size and the lower power consumption.

The invention relates to a three-dimensional pavement crack image generation system and method. The system includes an information acquisition subsystem, a data processing subsystem and the like, wherein the information acquisition subsystem includes an image acquisition module and a crack depth acquisition module; the image acquisition module includes a shooting control sub-module, a CCD line scan camera and a structured light projector; and the data processing subsystem includes an information storage module, an image registration module, a visible light image crack detection module, a structured light image space texture extraction module and an image fusion module. The method comprises the following steps: step S100, collecting sample crack information, and building a crack depth prediction model; step S200, collecting a target rack image, extracting crack features and space texture, and calculating the target crack depth. Compared with the prior art, the three-dimensional pavement crack image generation system and method provided by the invention are simpler and more feasible and high in accuracy, and have broad application prospects.

The invention discloses a method and a system of gaining a three-dimensional object contour. Wherein, the method comprises: projecting structured light consisted of coding ray on a preset plane region, and picturing the structured light on the plane region to gain a standard image of the structured light having no deforming light; projecting the structured light on the three-dimensional object, and picturing the structured light on the three-dimensional object to gain a deforming image of the structured light having the deforming light; separately processing to decode for the structured light of the standard image and the deforming image and determining space position information of each part of the three-dimensional object according to position change of decoded same light in the two images, and determining the three-dimensional object contour according to the space position information. The technical scheme of the invention need not process a course of standardization and image matching and realize contour gaining of the three-dimensional object via simpler method.

A 3-D reconstruction method based on Taylor exponent expression surface structured light is provided, The method mainly comprises the following steps: generating and projecting a surface structure grating based on a special exponential expression, acquiring an image, and calculating the phase information of a projector-free gamma error contained in the acquired image based on a corresponding novelphase decomposition method. Thus, through the phase information of no projector gamma error, calculating the three-dimensional measurement result, and eliminating the effect of projector gamma on themeasurement result, and improving the measurement precision.

The embodiment of the invention discloses a welding line positioning method for positioning the butt joint position between welding workpieces. The welding line positioning method comprises the stepsthat an industrial camera receives structured light reflected through laser beam irradiation at the butt joint position, and an image is formed; the image is processed, and a structured light stripe framework composed of single pixels is obtained; according to the structured light stripe framework, feature points of the butt joint position area are extracted from the image, and coordinates of thebutt joint position in the image are obtained; and deflection amount calculation is conducted on the butt joint position coordinates in the image, and the actual coordinates of the butt joint positionare obtained. Through the above manner and the implementing manner, the problem that in the prior art, positioning of the butt joint position of the middle of a folded welding workpiece is inaccurateis solved; and through the positioning method, the positioning precision is improved, the later welding operation is facilitated, and the welding quality is improved.

The invention discloses a selfie stick shielding method and device of a selfie. The method comprises the following steps: firstly projecting a structured light source to a to-be-shielded selfie stick in a selfie frame, and taking a structured light image of the structured light source modulated by the selfie stick; and then demodulating a phase corresponding to a deformation location pixel in the structured light image, generating depth of field information of the selfie stick according to the phase, and generating a 3D model of the selfie stick according to the depth of field information; and finally, determining a selfie stick region in the selfie according to the 3D model of the selfie stick, and performing the shielding processing on the selfie stick region. By using the shielding method disclosed by the invention, the selfie stick region in the selfie can be precisely positioned, and then the selfie stick in the selfie can be shielded as far as possible to obtain the satisfying selfie of a user, and the user experience is improved.

The invention provides a measurement method and device for planar image analysis based on structural illumination features, and the method comprises the following steps: projecting stripes to the surface of a to-be-measured object, and obtaining an EPI picture of the to-be-measured object; performing feature extraction on the EPI picture to obtain line segments with obvious linear features; identifying collinear line segments belonging to the same feature point from the line segments with obvious linear features; and determining the coordinates of the three-dimensional scene of the feature point according to the collinear line segment and the relationship among the polar plane position, the straight line slope and the intercept in the EPI image. According to the invention, stripe analysisis carried out on stripe structured light projected to the surface of an object, noise is removed by using filtering and mathematical analysis methods, and an EPI reconstruction result based on structured illumination is optimized, so that the accuracy of a three-dimensional measurement result is improved, and the precision, stability and efficiency are improved to a certain extent.