4results about How to "Reduce image quality" patented technology

This utility model discloses a conveyor belt under-surface cleaning and wetting device, relating to the field of conveyor belt crack detection technology. It includes a support frame positioned between the upper and lower belts. Lifting components are fixedly installed at both ends of the bottom of the support frame, located on both sides of the conveyor belt. A cleaning component for cleaning the under-surface of the upper belt is located on the front side of the top of the support frame, and a drying component for drying the under-surface of the upper belt is located on the rear side. This conveyor belt under-surface cleaning and wetting device can remove interfering materials such as coal ash beforehand through the cleaning component, avoiding misjudgment of crack features by the detection equipment. The drying process eliminates water residue, preventing water film from interfering with the imaging quality of the optical detection equipment and avoiding the risk of slippage caused by a decrease in the friction coefficient between the belt and the drive roller. While ensuring coal transportation efficiency, it provides a clean and dry detection environment for conveyor belt hazard monitoring, effectively improving the accuracy of crack identification.

This invention relates to an X-ray adaptive imaging method based on array microaperture modulation, comprising a cold cathode flat-panel X-ray source, a first microaperture beam element, a test object, an optional second microaperture beam element, an optional third microaperture beam element, and a detector arranged sequentially. All components in the system are geometrically coaxial. The first microaperture beam element is installed at the X-ray exit window of the cold cathode flat-panel X-ray source, the optional second microaperture beam element is installed close to the test sample side, and the optional third microaperture beam element is installed close to the front side of the detector. The method includes: omnidirectional X-rays emitted from the cold cathode flat-panel X-ray source pass through the first microaperture beam element to obtain a quasi-parallel beam; the quasi-parallel beam passes through the test object, and after passing through the optional second microaperture beam element to eliminate scattering, it finally reaches the detector for imaging after passing through the third microaperture beam element.

The invention relates to the technical field of image display, in particular to a metal metallographic structure image classification display method and system. The method comprises the following steps: preprocessing a metal metallographic structure image, calculating and evaluating an image feature index Tzls, quantifying the overall quality of the metal metallographic structure image, automatically screening low-quality and repeated images, and reducing stored and processed invalid data; classifying the metal metallographic structure images by using two characteristics of structural factors and defect factors of the metal metallographic structure; the metal metallographic structure image is classified and graded by calculating and evaluating a structure characteristic index Jtzs and a defect characteristic index Qtzs; and all grade division results are transmitted to the image classification display module, so that timely and accurate data transmission is ensured, a user searches and filters according to a structure grade or a defect grade, a required image is quickly found, and the working efficiency is improved.

The embodiment of the invention provides test equipment and a test system. The testing equipment comprises a human eye-like camera, the human eye-like camera comprises a cornea-like lens, a dimming film and at least one imaging lens, the dimming film is located behind the cornea-like lens to simulate human eye pupils, and the imaging lens is located on the light emitting side of the dimming film; the first driving assembly is electrically connected with the human eye-like camera so as to drive the human eye-like camera to rotate in the vertical direction; and the second driving assembly is electrically connected with the human eye-like camera so as to drive the human eye-like camera to rotate in the horizontal direction.