51results about How to "Reduce the number of collections" patented technology

The invention relates to a method for vertically measuring three-dimensional surface shapes of structured light in a continuous scanning mode. While the image plane of the structured light projection device continuously scans the measured object along the vertical direction, N frames (N≧3) N-step phase-shifted sinusoidal gratings are sequentially imaged on the measured object, and the CCD camera passes through a semi-transparent The mirror acquires the sinusoidal grating image modulated by the height of the object synchronously from the same direction. Perform Fourier transform processing on the collected picture set pixel by pixel along the time axis or use N-step phase shift algorithm for pictures of continuous N frames (N≧3) phase-shifted sinusoidal grating images, so as to obtain the position of the sinusoidal grating image on the surface of the object Modulation distribution. The three-dimensional surface shape of the object is reconstructed by using the corresponding relationship between the modulation value obtained in advance and the height. The invention not only has the characteristics of vertical measurement, but also has the characteristics of high-precision measurement of three-dimensional surface shape.

The invention discloses a high-speed evanescent field frequency-shifting super-resolution microscopic imaging system and imaging method. An on-chip light-emitting device is used to simultaneously generate evanescent fields of three wavelengths transmitted in the same direction, and a color camera is used to simultaneously illuminate the three wavelengths in the same direction. The frequency-shifted images generated by the wavelength evanescent field are collected, and the three wavelengths correspond to the frequency-shifted signals of red, green, and blue bands, and each wavelength illumination has different frequency-shifted amounts. In the process of image reconstruction, the multi-wavelength information captured at the same time is separated and interpolated separately, thereby obtaining sample information with different frequency shifts and different illumination directions. Finally, image reconstruction is carried out, and the high-frequency and low-frequency spectra of different directions of the sample are stitched together using a stitching algorithm in the spectral space, and finally a high-resolution image that breaks through the optical diffraction limit of a traditional microscope is restored. In the case of sacrificing a certain image sampling rate, the present invention can effectively reduce the number of images collected by the evanescent field frequency shift super-resolution method and improve the imaging speed.

The present invention provides a syringe defect detection method based on semantic segmentation, including the following steps, step S1: injector image acquisition, step S2: convert the json file into a png mask image with code, step S3: image processing, that is, the syringe data set is completed production, step S4: build a fully convolutional neural network model, input the training data set into the semantic segmentation network, and obtain a convergent segmentation model after iterating the model parameters, step S5: test the model, and input the test data set into the semantic segmentation network In the segmentation network, obtain the syringe segmentation map, compare the defects on the original image, and judge the segmentation accuracy of the model. Step S6: Export the model file, perform defect detection through the semantic segmentation network, and automatically determine whether the syringe is defective. Compared with traditional manual detection , faster and more accurate, improving the degree of automation of the manufacturing process, can greatly reduce the cost of enterprises, while increasing productivity.

The invention discloses a slope shaping method based on a GNSS single-antenna satellite. The method comprises the steps of: receiving plane coordinate information of a starting collection point and plane coordinate information of an end point collection point, receiving steepness information of a slope to be measured, wherein the extension direction of a straight line determined by the starting collection point and the end point collection point is the same as the projection of the extension direction of the slope to be measured on the horizontal plane; determining a reference equation; determining a vertical line equation; obtaining plane coordinate information of a facade reckoning point; and determining a slope equation according to the plane coordinate information of an initial acquisition point, the plane coordinate information of an end point acquisition point, the plane coordinate information of the facade reckoning point and the steepness information, and carrying out slope preparation. According to the invention, the process is simplified, and the requirement of measurement on a GNSS system is reduced. The invention further provides a slope shaping method, device and equipment based on the GNSS single-antenna satellite and a computer readable storage medium, wherein the slope shaping method, device and equipment have the advantages.