Abstract: A non-contact overhead waterproof structure for high-speed motors includes a motor main body, a movable impeller, a fixed impeller, a motor shaft, a bearing and an oil seal layer. The movable impeller, the fixed impeller, the motor shaft and the bearing are provided inside the motor main body. The movable impeller, the fixed impeller and the bearing are sleeved on the motor shaft in sequence from top to bottom. The motor shaft is able to rotate along its axis to drive the movable impeller to rotate along the axis of the motor shaft. The fixed impeller is fixedly provided in the motor main body. The oil seal layer is provided between the movable impeller and the bearing, and is rotatably sleeved outside the motor shaft and sealedly provided between the motor shaft and the fixed impeller.

Abstract: A non-contact overhead waterproof structure for high-speed motors includes a motor main body, a movable impeller, a fixed impeller, a motor shaft, a bearing and an oil seal layer. The movable impeller, the fixed impeller, the motor shaft and the bearing are provided inside the motor main body. The movable impeller, the fixed impeller and the bearing are sleeved on the motor shaft in sequence from top to bottom. The motor shaft is able to rotate along its axis to drive the movable impeller to rotate along the axis of the motor shaft. The fixed impeller is fixedly provided in the motor main body. The oil seal layer is provided between the movable impeller and the bearing, and is rotatably sleeved outside the motor shaft and sealedly provided between the motor shaft and the fixed impeller.

Abstract: Embodiments of the present invention disclose a parameter calibration method. The method includes: acquiring a calibration template image, where the calibration template image is obtained by photographing a calibration template; performing corner detection on the calibration template image to extract image corners; calculating a radial distortion parameter according to the extracted image corners; performing radial distortion correction according to the calculated radial distortion parameter, so as to reconstruct a distortion correction image; and according to a perspective projection relationship between the calibration template and the reconstructed distortion correction image, calculating intrinsic and extrinsic parameters to implement parameter calibration, where the intrinsic and extrinsic parameters include: a matrix of intrinsic parameters, a rotational vector, and a translational vector.

Abstract: A method for generating texture includes (1) selecting a target patch to be filled in a image, (2) selecting a sample patch as a candidate for filling the target patch, (3) determining a first difference between a first area surrounding the target patch and a corresponding first area surrounding the sample patch, and a second difference between a second area surrounding the target patch and a corresponding second area surrounding the sample patch, (4) multiplying a larger of the first difference and the second difference with a first weight factor, and a smaller of the first difference and the second difference with a second weight factor, and (5) summing the weighted first difference and the weighted second difference as a distance between the target patch and the sample patch.

Abstract: A method for generating texture includes (1) selecting a target patch to be filled in a image, (2) selecting a sample patch as a candidate for filling the target patch, (3) determining a first difference between a first area surrounding the target patch and a corresponding first area surrounding the sample patch, and a second difference between a second area surrounding the target patch and a corresponding second area surrounding the sample patch, (4) multiplying a larger of the first difference and the second difference with a first weight factor, and a smaller of the first difference and the second difference with a second weight factor, and (5) summing the weighted first difference and the weighted second difference as a distance between the target patch and the sample patch.