6results about How to "Consistent Image Quality" patented technology

The utility model provides a 35mm line scanning lens and an optical system. The 35mm line scanning lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a diaphragm, a sixth lens, a seventh lens, an eighth lens, a ninth lens, a tenth lens and an eleventh lens which are sequentially arranged from an object side to an image side along an optical axis, the object side surface is a convex surface, and the image side surface is a concave surface; under the condition of considering a large target surface, reasonable lens matching is adopted, so that the imaging quality requirement is met, and the manufacturing cost is reduced; the wide-working-distance imaging requirement is met, and the minimum working distance of imaging can be taken into account to be 130 mm; the high resolution in a full target surface range is realized, and the imaging quality from the center to the edge is relatively consistent; and an optical athermalization design is adopted, so that high-definition images can be output in high and low temperature environments (-40 DEG C to 80 DEG C).

This invention provides a standardized machine vision-based system for synchronously detecting the diameter and spacing of perforated holes in drainage boards, relating to the field of drainage board detection technology. It includes a standardized visual acquisition module, a composite adaptive optics illumination module, an anti-interference hole contour extraction module, a dynamic hole spacing boundary recognition module, a hole position anomaly recognition module, and a standardized database unit. The standardized visual acquisition module provides a standardized image foundation for subsequent detection. This invention constructs a standardized visual acquisition architecture, solving the shortcomings of existing visual acquisition modules, such as the lack of unified standards and large imaging deviations. Through standardized camera and light source configurations and a periodic calibration mechanism, combined with ambient light compensation, it ensures consistent imaging quality across different batches and devices, improving the universality of detection results. Simultaneously, it provides a standardized image foundation for subsequent detection algorithms, reducing algorithm adaptation difficulty and meeting the detection needs of industrial-scale production.

The present invention relates to a lens measuring device under variable temperature conditions and a lens focal plane measuring method for measuring the changes of the lens at different temperatures using the lens measuring device. The device comprises a group of light source emitting devices and multiple groups of receiving measuring devices; the light source emitting device comprises a light source, a homogenizing plate and a graticule, and multiple groups of discrimination unit measurement patterns are arranged on the graticule; each group of receiving measuring devices comprises an auxiliary lens and an image sensor, the lens measuring device further comprises a box and a temperature control device, the lens with a holder to be measured can adjust the state where the focal plane of the lens and the bottom plane of the adapter seat overlap, and the present invention can measure the modulation transfer function value (MTF value) corresponding to the lens with a holder to be measured when the image sensor used to detect the imaging quality of the lens with a holder to be measured is offset to different positions under different temperature environments.

The present application relates to the field of optical imaging technology.The present application relates to an optical AI coding optical imaging system based on optics.The system comprises a mask plate adding unit, a blurred image unit, a phase parameter unit, an AI coding unit and a decoding recovery unit;the mask plate adding unit is used for obtaining a pupil specification, then a non-rotationally symmetric phase mask plate is added at the pupil according to the pupil specification, and the sensitivity of different parameter combinations to defocus aberration is simulated for the phase mask plate;by adding the non-rotationally symmetric phase mask plate at the pupil, combined with the non-focal point phase modulation plate to form a synergistic effect, the target can be imaged in a long dynamic range without zooming and focusing, meanwhile, the phase modulation depth and mask size of the phase mask plate are completely matched with the pupil specification, the non-focal point phase modulation plate adopts a non-rotationally symmetric phase distribution, and the two cooperate to strengthen the insensitivity of the system to the defocus of the image plane, so that the blurred modes of imaging at different defocus positions in a large focal depth range are consistent.

The disclosed embodiments disclose an image conversion method, device, computer-readable storage medium and electronic device, wherein the method includes: determining the intrinsic parameters and distortion parameters of a camera used to capture a first image; based on the intrinsic parameters and distortion parameters, performing distortion correction processing on the first image to obtain a second image; in the three-dimensional local coordinate system of the camera, based on the intrinsic parameters of the camera and a preset camera rotation angle, converting the second image into a third image; based on the intrinsic parameters and distortion parameters, performing distortion restoration processing on the third image to obtain a fourth image. The disclosed embodiments can perform distortion operations on an image after the camera shooting angle is transformed, so that the image quality of the image after the camera shooting angle is transformed is consistent with that of the original image, the implementation method is simple, the efficiency of generating images is high, and the generated images are closer to real scenes.