Abstract: The present invention provides a method for infrared imaging detection and positioning of an underground tubular facility in a plane terrain. Demodulation processing is performed on an original infrared image formed after stratum modulation is generated on the underground tubular facility according to an energy diffusion Gaussian model of the underground tubular facility, so as to obtain a target image of the underground tubular facility.

Abstract: An infrared imaging detection and positioning method for an underground building in a planar land surface environment comprises: obtaining an original infrared image g0 formed after stratum modulation is performed on an underground building, and determining a local infrared image g of a general position of the underground building in the original infrared image g0; setting an iteration termination condition, and setting an initial value h0 of a Gaussian thermal diffusion function; using the local infrared image g as an initial target image f0, and performing iteration solution of a thermal expansion function hn and a target image fn by using a maximum likelihood estimation algorithm according to the initial value h0 of the Gaussian thermal diffusion function; and determining whether the iteration termination condition is met, if the iteration termination condition is met, using the target image fn obtained by means of iteration solution this time as a final target image f; and if the iteration termination con

Abstract: The present invention discloses a method for detecting, recognizing, and positioning a zonal underground target in a mountain land environment by detecting a ridge position in the mountain land environment and carrying out energy correction. The method belongs to the interdisciplinary field of pattern recognition, remote sensing technology and terrain analysis. The zonal underground target can cause energy abnormity when the heat field thereof is different from that of a mountain mass, and the heat island effect of the ridge can also cause the energy of the mountain mass to be abnormal. However, the energy abnormity caused by the heat island effect is essentially different from the energy abnormity caused by the zonal underground target in the aspect of mode.

Abstract: The invention discloses a direction-adaptive image deblurring method, comprising steps of: (1) defining a minimum cost function for deblurring an image by direction-adaptive total variation regularization; (2) converting the unconstrained minimization problem in step (1) to a constrained problem by auxiliary variables d1=Hu, d2=?xu and d3=?yu; (3) obtaining a new minimum cost function from the constrained problem in step (2) by introducing penalty terms; and (4) converting the minimization problem in step (3) to an alternating minimization problem about u, d1, d2 and d3, where a minimum of a variable is calculated as other variables are determined, and obtaining a deblurred image by solving the alternating minimization problem by an alternative and iterative minimization process.

Abstract: A zonal underground structure detection method based on sun shadow compensation is provided, which belongs to the crossing field of remote sensing technology, physical geography and pattern recognition, and is used to carry out compensation processing after a shadow is detected, to improve the identification rate of zonal underground structure detection and reduce the false alarm rate. The present invention comprises steps of acquiring DEM terrain data of a designated area, acquiring an image shadow position by using DEM, a solar altitude angle and a solar azimuth angle, processing and compensating a shadow area, and detecting a zonal underground structure after the shadow area is corrected.

Abstract: An audio jack connector (100) includes an insulative housing (1) having a number of passageways (111) and a number of slits (112) beside the passageways, and a number of contacts (2) retained in the passageways. Each contact includes a retaining portion (22) retained in the passageway, a contacting portion (21) extending inwardly from the retaining portion, and a horizontal portion (23) bent outwardly from the retaining portion and being located in a bottom face (11) of the insulative housing. The audio jack connector includes a glue plate (3) assembled to the bottom face of the insulative housing. The audio jack connector includes a glue frame (4) having a base portion (41) seamlessly sandwiched between the glue plate and the insulative housing, and a number of protrusions (42) seamlessly sandwiched between the horizontal portions of contacts and the insulative housing. The protrusions are received in the slits.

Abstract: A card connector (100) includes an insulative housing (1) and a number of contacts (2) retained in the insulative housing. The insulative housing defines a receiving space (10), a front-and-rear direction, and a left-and-right direction perpendicular to the front-and-rear direction. Each contact includes a soldering portion (23), two retaining portions (24), and a curved portion (25) connecting between the two retaining portions. The curved portion includes a contacting portion (251) arching upwardly to protrude into the receiving space and two flexible portions (252) integrally formed at two opposite ends of the contacting portion. The two flexible portions are centrosymmetry with respect to the contacting portion.

Abstract: The present invention provides a method for infrared imaging detection and positioning of an underground tubular facility in a plane terrain. Demodulation processing is performed on an original infrared image formed after stratum modulation is generated on the underground tubular facility according to an energy diffusion Gaussian model of the underground tubular facility, so as to obtain a target image of the underground tubular facility.

Abstract: A zonal underground structure detection method based on sun shadow compensation is provided, which belongs to the crossing field of remote sensing technology, physical geography and pattern recognition, and is used to carry out compensation processing after a shadow is detected, to improve the identification rate of zonal underground structure detection and reduce the false alarm rate. The present invention comprises steps of acquiring DEM terrain data of a designated area, acquiring an image shadow position by using DEM, a solar altitude angle and a solar azimuth angle, processing and compensating a shadow area, and detecting a zonal underground structure after the shadow area is corrected.

Abstract: The present invention discloses a method for stimulating a temperature field of a mountain mass containing a distributed underground facility under the influence of a seepage effect.

Abstract: The present invention discloses a method for detecting, recognizing, and positioning a zonal underground target in a mountain land environment by detecting a ridge position in the mountain land environment and carrying out energy correction. The method belongs to the interdisciplinary field of pattern recognition, remote sensing technology and terrain analysis. The zonal underground target can cause energy abnormity when the heat field thereof is different from that of a mountain mass, and the heat island effect of the ridge can also cause the energy of the mountain mass to be abnormal. However, the energy abnormity caused by the heat island effect is essentially different from the energy abnormity caused by the zonal underground target in the aspect of mode.

Abstract: An infrared imaging detection and positioning method for an underground building in a planar land surface environment comprises: obtaining an original infrared image g0 formed after stratum modulation is performed on an underground building, and determining a local infrared image g of a general position of the underground building in the original infrared image g0; setting an iteration termination condition, and setting an initial value h0 of a Gaussian thermal diffusion function; using the local infrared image g as an initial target image f0, and performing iteration solution of a thermal expansion function hn and a target image fn by using a maximum likelihood estimation algorithm according to the initial value h0 of the Gaussian thermal diffusion function; and determining whether the iteration termination condition is met, if the iteration termination condition is met, using the target image fn obtained by means of iteration solution this time as a final target image f; and if the iteration termination con

Abstract: The invention discloses a direction-adaptive image deblurring method, comprising steps of: (1) defining a minimum cost function for deblurring an image by direction-adaptive total variation regularization; (2) converting the unconstrained minimization problem in step (1) to a constrained problem by auxiliary variables d1=Hu, d2=?xu and d3=?yu; (3) obtaining a new minimum cost function from the constrained problem in step (2) by introducing penalty terms; and (4) converting the minimization problem in step (3) to an alternating minimization problem about u, d1, d2 and d3, where a minimum of a variable is calculated as other variables are determined, and obtaining a deblurred image by solving the alternating minimization problem by an alternative and iterative minimization process.

Abstract: A method for identifying and positioning a building using mountain-based outline region restraint, including steps of: (1) obtaining a real-time image, detecting a mountain-based outline of the real-time image, and extending the mountain-based outline thereby obtaining a mountain-based outline restraint region, (2) conducting morphological enhancement and background suppression on the image in the mountain-based outline restraint region, (3) conducting recursive segmentation in the mountain-based outline restraint region thereby transforming an image obtained in step (2) into a binary image, (4) extracting local regions of interest of a target building in the mountain-based outline restraint region according to the binary image, and (5) directly identifying and positioning the target building in the local regions of interest.

Abstract: An audio jack connector (100) includes an insulative housing (1) having a number of passageways (111) and a number of slits (112) beside the passageways, and a number of contacts (2) retained in the passageways. Each contact includes a retaining portion (22) retained in the passageway, a contacting portion (21) extending inwardly from the retaining portion, and a horizontal portion (23) bent outwardly from the retaining portion and being located in a bottom face (11) of the insulative housing. The audio jack connector includes a glue plate (3) assembled to the bottom face of the insulative housing. The audio jack connector includes a glue frame (4) having a base portion (41) seamlessly sandwiched between the glue plate and the insulative housing, and a number of protrusions (42) seamlessly sandwiched between the horizontal portions of contacts and the insulative housing. The protrusions are received in the slits.

Abstract: A card connector (100) includes an insulative housing (1) and a number of contacts (2) retained in the insulative housing. The insulative housing defines a receiving space (10), a front-and-rear direction, and a left-and-right direction perpendicular to the front-and-rear direction. Each contact includes a soldering portion (23), two retaining portions (24), and a curved portion (25) connecting between the two retaining portions. The curved portion includes a contacting portion (251) arching upwardly to protrude into the receiving space and two flexible portions (252) integrally formed at two opposite ends of the contacting portion. The two flexible portions are centrosymmetry with respect to the contacting portion.

Abstract: A waterproof electrical connector (100) includes a number of terminals (2), a metallic shell (1), and an insulating housing (3) molding outside of the metal shell (1) to define a passageway (10). The insulating housing (1) includes a base portion (33), a tongue portion (31) extending forwardly from the base portion (33), and a cover portion (32) extending forwardly from end edges of the base portion (33) for covering the metallic shell (1). The tongue portion (33) includes at least one mold slot (331), the metallic shell includes a mold cavity (124), and the cover portion (32) includes a mold hole (322). The mold slot (331) is aligned with the mold cavity (124) and the mold hole (322) for inserting a mold.

Abstract: A method for identifying and positioning a building using mountain-based outline region restraint, including steps of: (1) obtaining a real-time image, detecting a mountain-based outline of the real-time image, and extending the mountain-based outline thereby obtaining a mountain-based outline restraint region, (2) conducting morphological enhancement and background suppression on the image in the mountain-based outline restraint region, (3) conducting recursive segmentation in the mountain-based outline restraint region thereby transforming an image obtained in step (2) into a binary image, (4) extracting local regions of interest of a target building in the mountain-based outline restraint region according to the binary image, and (5) directly identifying and positioning the target building in the local regions of interest.

Abstract: A waterproof electrical connector (100) includes a number of terminals (2), a metallic shell (1), and an insulating housing (3) molded outside of the metal shell (1) to thereby define a passageway (10). The insulating housing (1) includes a base portion (33) and a tongue portion (31) extending forwardly from the base portion (33). The base portion (33) includes at least one mold cavity (331) for inserting a mold. The mold cavity (331) and the passageway (10) are spaced apart from each other along the insertion/extraction direction for having better waterproof function.

Abstract: A waterproof electrical connector (100) includes a number of terminals (2), a metallic shell (1), and an insulating housing (3) molded outside of the metal shell (1) to thereby define a passageway (10). The insulating housing (1) includes a base portion (33) and a tongue portion (31) extending forwardly from the base portion (33). The base portion (33) includes at least one mold cavity (331) for inserting a mold. The mold cavity (331) and the passageway (10) are spaced apart from each other along the insertion/extraction direction for having better waterproof function.