37 results about "Image quality degradation" patented technology

To provide a liquid dispensing device that can reduce the risk of degrading the image quality formed on the medium and the risk of impairing convenience. [Solution] A liquid dispensing device having a sink circuit that switches the impedance value between a first wiring through which a reference voltage signal supplied to the other end of a first piezoelectric element and the other end of a second piezoelectric element propagates, and a second wiring through which a signal with a lower potential than the reference voltage signal propagates, according to the determination result of the state of a plurality of dispensing units in a state determination circuit, the sink circuit having a first mode in which the impedance value is a first impedance value, a second mode in which the impedance value is a second impedance value smaller than the first impedance value, and a third mode in which the impedance value is a third impedance value smaller than the second impedance value.

The present invention provides an imaging device capable of suppressing image quality degradation that occurs during image synthesis processing. [Solution] An imaging device (100) that can communicate with an illumination device (300) comprises an image sensor (102) that acquires a first RAW image and a processing means (101) that instructs the illumination device to emit light and performs image synthesis processing. The processing means generates a second RAW image by removing information related to the image sensor or imaging settings from the first RAW image, performs synthesis processing using the second RAW image to show the effect of light emission from the illumination device, and generates a third RAW image by adding information to the second RAW image after synthesis processing.

A method for detecting degradation of an ultrasound imaging system (140) includes receiving ultrasound images of a heart (S311); automatically determining a cardiac view of the heart by applying at least one ultrasound image to a trained machine learning algorithm (S312); automatically selecting an image quality (IQ) model from a plurality of IQ models based on the determined cardiac view of the heart (S313); determining an IQ metric associated with each ultrasound image by applying each ultrasound image to the selected IQ model (S314); aggregating the IQ metrics to provide an aggregated IQ score associated with each ultrasound image, thereby creating a time series of aggregated IQ scores (S315); estimating a level of degradation of the ultrasound imaging system based on the time series of aggregated IQ scores associated with the ultrasound images over time using a degradation detection machine learning algorithm (S316); and notifying a user of the estimated level of degradation (S317).

This invention discloses a method and apparatus for evaluating the robustness of image watermarking. The method includes: acquiring an original image dataset; printing watermarks on a portion of the original images in the original image dataset using the watermarking algorithm to be evaluated, forming a watermarked image dataset; attacking all images in the watermarked image dataset to obtain an attacked image dataset; performing watermark recognition on all images in the attacked image dataset to obtain watermark recognition results; the watermark recognition results include the true positive rate and the false positive rate; using a preset image quality measurement algorithm, calculating the image quality measurement values ​​before and after the attack for each watermarked image, as the image quality degradation result; determining the image watermark robustness evaluation result based on the watermark recognition result and the image quality degradation result; the image watermark robustness evaluation result includes an image watermark robustness evaluation report. This invention provides a complete, systematic, and mature method for evaluating watermarking algorithms.

The present invention relates to a display device in which a light-emitting element and an optical lens are laminated on a light-emitting region of a device substrate. A black matrix and a touch electrode may be laminated on a non-light-emitting region of the device substrate. An encapsulation unit covering the light-emitting element and an optical insulating film covering the black matrix may be located on the light-emitting region and the non-light-emitting region of the device substrate. The touch electrode and the optical lens may be located on the optical insulating film. A lens barrier may be located on the optical insulating film. Each optical lens may be surrounded by the lens barrier. Accordingly, deformation of each optical lens due to a reflow process can be prevented in the display device. Therefore, degradation of image quality due to the formation process of the optical lens can be prevented in the display device.

This invention relates to an optical path control device and a display device, such that the visual perception of the image output when an optical section based on a first axis swings is the same as that of the image output when an optical section based on a second axis swings, thereby suppressing image quality degradation. It includes: a swinging section having: an optical section for light incidence; a first swinging section supporting the optical section; and a second swinging section supported by the first swinging section via the first axis and supported by the second swinging section via the second axis; a first actuator for swinging the swinging section about the first axis as a fulcrum and about a first swinging axis including the first axis as a center; and a second actuator for swinging the swinging section about the second axis as a fulcrum and about a second swinging axis including the second axis as a center, wherein the first and second swinging axes intersect, and the torsional stiffness of the second axis is higher than that of the first axis.

The application discloses a kind of diffractive microstructure library management system, method, storage medium and optical element applied to the field of diffractive optical element design, the transmission amplitude and phase of unit structure under different polarization states are simulated / measured, and polarization sensitivity index is calculated, the structure library index with "exclusive area / turning rule" is established, so that the unit structure that meets can be preferentially selected when generating prescription phase height field, to reduce the phase error and ghost risk caused by polarization, and output the data packet with version number, hash signature and audit field for cross-site replication, by introducing quantitative polarization sensitivity index, and actively screening unit structure that meets polarization sensitivity index meets set threshold in design stage, fundamentally reduce the dependence of diffractive optical element on incident light polarization state, so as to effectively reduce phase error, ghost and image quality degradation.

To provide a liquid dispensing device that can reduce the risk of degrading the image quality formed on the medium and the risk of impairing convenience. [Solution] A liquid ejection device in which, when a state determination circuit that determines the state of multiple ejection units determines that an abnormality has occurred in the first ejection unit, the first switch circuit corresponding to the first piezoelectric element that ejects liquid from the first ejection unit does not supply a drive signal to the first piezoelectric element during the ejection period in which liquid is ejected from the print head, and when a state determination circuit that determines the state of multiple ejection units determines that an abnormality has occurred in the second ejection unit, the second switch circuit corresponding to the second piezoelectric element that ejects liquid from the second ejection unit does not supply a drive signal to the second piezoelectric element during the ejection period.

This application provides an image correction method and apparatus, storage medium, and electronic device for smart devices. The method includes: responding to an image acquisition command, acquiring an image to be corrected and the device's operating status; being able to identify the material properties of a cover plate in real time or periodically and determine the current operating status; the material properties of the cover plate dynamically change with the physical degradation of the cover plate; selecting a target correction strategy that matches the current operating status from multiple correction strategies; fully considering the mutual influence between the device's operating status and the material properties of the cover plate to ensure that the target correction strategy can more accurately address the challenge of image quality degradation caused by the physical degradation of the cover plate; performing image correction on the image to be corrected to generate a quality-optimized corrected image; and using the corrected image as input for image recognition to improve the accuracy of biometric recognition, thereby significantly improving the image recognition success rate of smart devices under cover plates of different materials.

A processor-implemented method with degraded image restoration includes: receiving a degraded training image; training a first teacher network of an image restoration network and a second teacher network of the image restoration network to infer differential images corresponding to the degraded training image, wherein each of the first teacher network and the second teacher network comprises a differentiable activation layer and a performance of the first teacher network is greater than that of the second teacher network; initially setting a student network of the image restoration network based on the second teacher network; and training the student network to infer a differential image corresponding to the degraded training image by iteratively backpropagating, to the student network, a contrastive loss that decreases a first difference between a third output of the student network and a first output of the first teacher network and increases a second difference between the third output and a second output of the second teacher network.

The disclosed subject matter relates to a computer system and a computer-implemented method for enhancing Scanning Electron Microscope (SEM) imaging output by mitigating and correcting imaging degradation due to charging distortion effects. The methods and systems presented address artifacts caused by charging distortions, improving the accuracy and reliability of SEM imaging for high-precision semiconductor applications. The solution enables rapid, efficient correction, and can be applied during runtime, such as within a semiconductor SEM scanning sequence, to generate augmented SEM images that facilitate more accurate analysis.

The application discloses a color screen instrument image correction method and system based on an RLE decompression algorithm, relates to the technical field of image processing, and aims to solve the problem of image quality decline of the RLE compression algorithm in the existing vehicle-mounted color screen instrument system when processing complex graphic data. The method comprises the following steps: analyzing graphic elements of a color screen instrument, and extracting design intention parameters of the graphic elements, wherein the design intention parameters are used for representing the generation law of the graphic elements; when the graphic elements need to be displayed, compressed data are read from a vehicle-mounted nonvolatile memory, and run-length encoding decompression is performed on the compressed data to obtain recovered RLE optimization descriptors; high-precision pixel data of the graphic elements are generated in real time according to the recovered RLE optimization descriptors, and the high-precision pixel data are output to the color screen instrument for display.

This application discloses a structural optimization design method for a cassette optical system to address the technical problem of image quality degradation caused by structural deformation under high-impact and high-overload conditions. The method includes: establishing a parametric finite element model comprising a primary mirror, a secondary mirror, and a supporting structure; obtaining the displacement vector through equivalent static analysis; calculating the structural stiffness characterization function and three image quality characterization functions (change in primary-secondary mirror spacing, primary mirror deformation, and secondary mirror deformation); establishing a multi-objective weighted optimization model; solving for the optimized structural element density distribution; and reconstructing the structural model. This method can effectively suppress structural deformation under high-impact and high-overload conditions, improving the stability and reliability of the system's image quality.

A liquid ejection device reduces the possibility of image quality degradation and inconvenience impairment caused by the medium. In this device, if a state determination circuit determining the state of multiple ejection sections determines that a first ejection section has malfunctioned, during the ejection period of liquid ejection from the printhead, a first switching circuit corresponding to a first piezoelectric element that causes the first ejection section to eject liquid does not supply a drive signal to the first piezoelectric element. Similarly, if the state determination circuit determining the state of multiple ejection sections determines that a second ejection section has malfunctioned, during the ejection period, a second switching circuit corresponding to a second piezoelectric element that causes the second ejection section to eject liquid does not supply a drive signal to the second piezoelectric element.

This invention provides a liquid ejection device capable of reducing the possibility of image quality degradation and the possibility of impaired convenience when formed on a medium. A liquid ejection device includes an absorption circuit that switches the impedance value between a first wiring that propagates a reference voltage signal supplied to the other end of a first piezoelectric element and the other end of a second piezoelectric element, and a second wiring that propagates a signal with a lower potential than the reference voltage signal, based on the determination result of the state of a plurality of ejection portions in a state determination circuit. The circuit comprises: a first mode in which the impedance value is set to a first impedance value; a second mode in which the impedance value is set to a second impedance value smaller than the first impedance value; and a third mode in which the impedance value is set to a third impedance value smaller than the second impedance value.

This invention provides a method, system, equipment, and medium for positioning and handling containers in ports, belonging to the field of port automation and machine vision positioning technology. The method includes: acquiring images of the container surface and synchronous spreader motion data; evaluating the jitter amplitude and combining image analysis with lighting conditions, adaptively selecting or fusing multispectral images to generate an anti-interference image; extracting corner coordinates and inputting them, along with the motion data, into a vision-inertial tightly coupled optimization model for state estimation, solving for real-time pose; using the motion data to drive a spreader-load dynamics model to predict future pose deviations caused by inertia and swaying; fusing feedback control quantities based on real-time pose and feedforward compensation quantities based on predicted deviations to generate precise control commands for driving the spreader. This invention overcomes the problems of image quality degradation and feature loss caused by strong light, weak light, and spreader swaying, achieving high-precision and robust container positioning and alignment in complex dynamic environments.

The present invention provides an information processing device, method, and program that enable both a reduction in image quality degradation and a reduction in processing load. [Solution] The information processing device detects a predetermined object from an input image, such as a video or still image, generates a background image after extracting the image of the predetermined object, and further generates text data representing the features of the background image using neural network processing or the like. The information processing device then saves or transmits the image of the detected object and the text data representing the features of the generated background image. It also generates a background image based on the text data and reconstructs the image by superimposing the image of the object onto the background image.

This technology enables the application of necessary optical aberration corrections during image synthesis while suppressing image quality degradation. [Solution] The imaging device includes: an imaging means for capturing an image of a subject through an optical system; an image processing means capable of applying a plurality of correction processes relating to optical aberrations of the optical system to the image obtained by the imaging means; a recording means for recording the image and correction data for applying at least one of the plurality of correction processes to the image; a format for the image to be recorded in the recording means; and a control means for recording correction data in the recording means that allows correction processes not applied to the image to be applied to the image, based on correction processes not applied to the image.

The present invention provides an image forming apparatus that is less prone to liquid contamination of the medium after image formation and less prone to deterioration of the quality of the image formed on the medium. [Solution] When an image is to be formed on the communication side of a glossy postcard (T5, No), the status of image formation on the address side is acquired prior to image formation (T7). If the address side has not been image-formed (T8, image not formed), image formation is performed on the communication side unless image formation on the communication side is canceled (T10, No) (T11). If the address side has already been image-formed (T8, image formed), image formation is performed on the communication side (T12). The amount of ink per unit area used in T12 is greater than the amount of ink per unit area used in T11.

This application relates to a method, apparatus, and computer device for dehazing images of transmission lines. The method includes: acquiring a foggy image of a transmission line and generating a noisy image; performing iterative reverse denoising using a pre-trained diffusion model; at each time step, using the iterative output image of the previous time step as the denoising input image, obtaining a denoised intermediate image through the diffusion model's own denoising calculation, and constraining and correcting this intermediate image based on dark channel constraint correction weights and color attenuation constraint correction weights to obtain the iterative output image of the current time step; simultaneously, judging whether image quality degradation has occurred based on the quality evaluation index of the iterative output image; if no degradation has occurred, adaptively adjusting the constraint correction weights for the next time step and continuing iteratively; if degradation has occurred, terminating the iteration and outputting the final dehazed image. This method can ensure stable removal of fog interference in foggy images of transmission lines while effectively preserving key details of the transmission line, improving overall dehazing efficiency.

This invention discloses a pixel-level constant current driving, ion migration monitoring, and bias protection system, belonging to the field of LED display driving and panel reliability technology. Addressing issues such as uneven pixel current, image quality degradation due to ion migration, pixel failure, and bias protection flickering in traditional Mini LED displays, this invention adopts a four-layer hierarchical architecture, integrating independent pixel-level constant current driving units. It relies on a three-parameter fusion monitoring and temperature compensation mechanism (temperature, pressure, and current) to quantify pixel aging status through the ion migration index. This invention combines adaptive current compensation and inter-frame synchronous reverse bias protection algorithms to achieve lossless image quality and flicker-free aging management. This invention offers high control precision, enabling real-time monitoring, compensation, and delay of pixel aging, significantly improving display uniformity and screen lifespan. Its modular design provides strong scalability, adapting to various high-end Mini LED display applications.

The application provides an image fog detection method and system based on multi-module statistical feature fusion, and is applied to the field of visual image processing; in the process of vehicle driving, image data is collected in real time by using a preset camera, statistical characteristic parameters (range, variance and high-frequency mean) are combined with a pre-trained prediction model to calculate a fog confidence score, the existence of fog in the image is quickly detected, compared with a traditional method which depends on a single threshold value or image enhancement post-processing, fog characteristics can be identified in time in the image collection link, the problem of perception distortion caused by image quality degradation is avoided, visibility band data is constructed and is linked with a preset driving strategy of the vehicle, active safety measures such as speed adjustment, vehicle distance control and emergency braking can be realized, and thus the driving safety in a low-visibility scene is improved.

Embodiments of the present application provide a display strategy determination method and device, a storage medium and an electronic device, wherein the method comprises: determining a physical interval distance between a target object and a display component of a target device; determining a theoretical pixel visual angle corresponding to the physical interval distance by the physical interval distance and a pixel size of a single pixel in the display component, wherein the theoretical pixel visual angle is used to indicate a pixel fineness degree perceived by the target object; and determining a display strategy of a played video on the target device by the theoretical pixel visual angle. Through the present application, the problem that a low-resolution image is stretched to a high-resolution screen by an interpolation algorithm in the related art, resulting in image quality degradation, is solved.

This invention discloses a channel quality-dynamically-aware image segmentation gradient compression system, comprising a state awareness module, a gradient map generation module, a segmentation module, a gradient compression module, and a post-processing module. The state awareness module calculates the available bit rate of the channel at the current moment. The gradient map generation module receives the original image, calculates the gradient magnitude of each pixel, and generates a gradient map. The segmentation module generates an image segment set guided by the gradient map. The gradient compression module receives the image segment set and the original image, quantizes and encodes the measured values, and generates a compressed bitstream. The post-processing module outputs the reconstructed image. This invention, under channel-constrained conditions, prioritizes the transmission detail fidelity of key areas with limited bit resources, avoiding the problems of overall image quality degradation and loss of key information, leading to missed detections and misjudgments, common in traditional methods.

The present invention provides an inkjet recording device that suppresses ink transfer to subsequent printed materials even if ink adheres to the transport roller pair, thereby avoiding a decrease in image quality. [Solution] An inkjet recording apparatus that forms an image on a recording medium by ejecting aqueous ink from a recording head onto the recording medium being transported along a predetermined transport direction, comprising a plurality of transport roller pairs provided after means for supplying thermal energy to the image-formed recording medium, which transport the image-formed recording medium by rotating in a certain direction while holding the image-formed recording medium, and wherein at least one of the transport roller pairs, the roller positioned on the image-forming surface, is provided with an ink coagulation member on at least a portion of its surface that contacts the aqueous ink to coagulate the aqueous ink.

The application discloses a kind of based on angular spectrum engineering's no diffraction holographic reconstruction method and system, the method solves the technical problem that image quality declines and axial stability is poor in the diffraction effect caused in traditional holographic reconstruction;Technical scheme includes projecting target pattern to phase modulator, using phase modulator to introduce random phase distribution to target pattern, form modulated light field;Modulated light field is Fourier transformed in central Fourier plane by 4f annular filtering module, annular band-pass mask is set in Fourier plane, so that the spatial frequency component located in the preset annular angular spectrum region is transmitted, and the limited angular spectrum light field is obtained;Limited angular spectrum light field is relayed and imaged to the imaging plane of detection equipment by imaging lens group, and target image is formed;The axial stability range can be configured by adjusting the ring width of annular band-pass mask region;The application can realize high-quality no diffraction holographic reconstruction, and has important application value in optical display, three-dimensional imaging and other fields.

This invention discloses an intelligent monitoring device for security engineering, relating to the field of monitoring devices. It includes an intelligent camera body and a mounting base, with the intelligent camera body mounted on the mounting base, and a mounting bracket installed on the mounting base. It also includes a multi-directional diffusion device mounted on the mounting base. It should be noted that in this invention, when the intelligent camera body is impacted by a foreign object thrown by an unauthorized person, the impact base protects the intelligent camera body and allows an auxiliary camera to deploy promptly for immediate replacement. It also pushes away the impacted explosion-proof lens and ejects a new explosion-proof lens, achieving automatic replacement. Furthermore, automatic replacement clears lens obstructions, avoiding image quality degradation caused by lens cover damage, optimizing evidence collection quality. Automatic replacement eliminates the tedious manual cleaning of damaged covers, reducing maintenance costs and time.

This invention provides a semiconductor module in which a MOS image sensor chip and a signal processing chip are stacked to prevent image quality degradation caused by heat. [Solution] The imaging device comprises an imaging unit having a first pixel that outputs a first pixel signal generated by a photoelectrically converted charge and a second pixel that outputs a second pixel signal generated by a photoelectrically converted charge; an imaging chip having a first peripheral portion formed outside the imaging unit and a second peripheral portion formed outside the imaging unit; a first signal processing chip stacked on the imaging chip in the first peripheral portion and having a first processing circuit that performs signal processing on the first pixel signal output from the first pixel; and a second signal processing chip stacked on the imaging chip in the second peripheral portion and having a second processing circuit that performs signal processing on the second pixel signal output from the second pixel, wherein the first signal processing chip and the second signal processing chip are arranged separately from each other inside the outer edge of the imaging chip.

The present application relates to a kind of detector calibration splicing method based on filter cross target projection matrix, belong to the high-precision splicing technical field of space remote sensing camera detector.Solve the technical problem of image quality decline caused by different detector not collinear in the prior art detector splicing method.The method of the present application uses filter target projection image position, and obtains the coordinate matrix of detector splicing by centroid extraction algorithm, linear fitting algorithm, coordinate matrix normalization processing and other methods, solves the problem of detector not collinear caused by filter tilt splicing.The method does not need to refer to the preset mark point of detector itself, and can still realize the linear splicing of detector under the condition of only filter mark point, and can ensure that the maximum tilt of the same row of pixels is less than 0.5 pixel size, and the misregistration accuracy between rows is less than 0.3 pixel size, avoids the random error caused by filter tilt, and further solves the problem of detector collinearity, improves the splicing accuracy.

If recording is performed on a media that is wrinkled, it may result in a decrease in the image quality of the recorded image or a malfunction of the recording head. [Solution] The system comprises a transport roller pair 10 having a main roller 14 that transports the medium M in the transport direction F, and a plurality of sub-rollers 16 that are spaced apart along the width direction H intersecting the transport direction F and that sandwich the medium M between themselves and the main roller 14; a recording head 5A that records on the medium M; a guide roller 11 that is positioned downstream of the transport roller pair 10 in the transport direction F and applies tension to the medium M; and a light source unit 20 that can irradiate the surface area SA of the medium M, which is transported through the air between the transport roller pair 10 and the guide roller 11, with the luminous intensity of the visible light L irradiated from the light source unit 20 to the surface area SA in the width direction H being higher than the luminous intensity in the transport direction F.