10results about How to "Reduce image quality" patented technology

The invention discloses an embedded firmware camera data modification method and device, a medium and equipment, and relates to the technical field of computer vision, and the method comprises the steps: collecting image data in real time, and carrying out the primary processing; a frame difference method and a background modeling algorithm are adopted to carry out region division and priority distribution on the image data after primary processing, and a region priority mapping table is generated; extracting feature points of a high-priority motion area in the optimized image data through an optical flow method, and calculating a motion vector between continuous frames; according to the calculated motion vector between the continuous frames, an event-driven frame processing mechanism is triggered, and the frame rate and the processing precision are automatically adjusted; through the motion vector extracted through the optical flow method, the motion speed of the object can be calculated in real time, the frame rate and the processing precision are dynamically adjusted according to the motion speed, it is ensured that enough details are captured in the rapid motion process, and processing resources are saved in the static process.

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.

The invention discloses a display method and device based on virtual resolution and electronic equipment. The method comprises the steps of obtaining graphics processor information of a hardware platform, determining a virtual resolution based on the graphics processor information, rendering a display image to a frame cache based on the virtual resolution in a first rendering stage, and performing enhanced rendering on the display image in the frame cache in a second rendering stage, and outputting the rendered display image to a display system. According to the method, the software rendering pressure is effectively reduced through the virtual resolution, the rendering fluency is improved, and the image quality of the display image with the reduced image quality in the software rendering stage is improved through enhanced rendering, so that the display image quality is improved while the rendering fluency is improved.

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 present invention discloses a remote driving image real-time transmission method, system, control device and storage medium, wherein the remote driving image real-time transmission method dynamically adjusts the bit rate of image data transmission according to the radio signal conditions and the packet loss rate, appropriately reduces the image quality without affecting the staff's observation of the vehicle's surrounding environment, and even converts the image into a grayscale image when the signal quality is extremely poor, so that the staff can observe the environmental image around the vehicle in a timely and stable manner under various conditions, thereby accurately performing remote control of the vehicle.

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.

The present application discloses a device for testing the impact resistance of a tool alloy material, which includes a test bench for placing a product to be tested; a pendulum, which can rotate under the action of gravity to impact the product to be tested on the test bench; a pendulum drive assembly, which is arranged above the pendulum, and the pendulum drive assembly is used to pull the pendulum up to a preset height; a camera protection tube, which is arranged above the test bench, and a camera assembly is connected to the camera protection tube along a vertical sliding connection, and the camera assembly can move in or out of the camera protection tube; a transmission rope, which is connected between the camera assembly and the pendulum drive assembly, when the pendulum drive assembly drives the pendulum to rise, the camera assembly can synchronously descend to a preset height under the action of its own weight, and when the pendulum descends, the camera assembly can be pulled up to the camera protection tube through the transmission rope. The present application can effectively perform an impact test on alloy materials and can accurately judge the state of the alloy materials after the impact test.

The invention discloses a preview imaging method, device and equipment for a transparent fluorescent sample, and the method comprises the steps: carrying out the shooting of a transparent fluorescent slice, and obtaining a transparent preview; switching a fluorescent light filter or a light source until a plurality of fluorescent channels for developing the transparent fluorescent section are obtained; determining a preview scanning area according to a sample position range in the transparent preview, selecting a target fluorescent channel from a plurality of fluorescent channels to perform coverage scanning on the transparent preview based on the determined preview scanning area to obtain a plurality of view images, and splicing the plurality of view images to generate a large preview scanning image; zooming the large preview scanning image to be the same as the preview scanning area in size, and replacing a corresponding area in the transparent preview image with the zoomed large preview scanning image to obtain a replaced preview scanning image; and identifying and framing a sample scanning area in the preview scanning image to obtain a target preview image. A sample scanning area can be clearly identified and framed, and the accuracy and efficiency of scanning are improved.

The present invention provides an optical image stabilization camera module and an optical image stabilization method, wherein the optical image stabilization camera module comprises a camera module, wherein the camera module comprises at least an image sensor and a lens assembly; a bearing component for bearing the camera module; and a driving component for driving the bearing component to drive the camera module to rotate around an axis parallel to the plane of the image sensor. The optical image stabilization camera module and the optical image stabilization method of the present invention provide an anti-shake compensation capability by driving the camera module to perform a tilting motion around an optical axis, and can achieve a larger anti-shake compensation range than a conventional lens translation type in terms of structure.