101 results about "Poor Quality Image" patented technology

In a display, capacitors are charged with first precharge voltages at the time of applying selection signals to previous scan lines. A data driver divides a plurality of data lines into a plurality of groups each of which consists of at least one data line and applies corresponding data voltages to the data lines of respective groups sequentially. The display further includes a precharge means, and such precharge means applies second precharge voltages to data lines of at least one group before selection signals for selecting scan line are applied to the scan line connected to the pixel circuits and stops application of the second precharge voltages before corresponding data voltages are applied to the respective groups. In this way, it is possible to solve the problem of poor images due to charge redistribution of the capacitors caused by previous data voltages stored in parasitic capacitors.

A mechanism which can avoid, as much as possible, a difference of picture quality that is caused by restricting color printing according to an authority and forcedly performing monochromatic printing is provided. A mechanism which restricts the color printing according to the authority without deteriorating performance is also provided. The processing refers to a color restricting mode in user information or a color restricting mode in setting information. When the referred color restricting mode indicates “force”, if the user does not have the authority in which a color job can be printed, the job is forcedly converted into monochrome. In case of “analyze”, if the user does not have the authority in which a color job can be printed, the job is analyzed. If it is the color job, a forced monochromatic printing or print inhibition is performed.

The invention discloses a scanning type ink-jet printing control method, device and equipment and a storage medium. The method comprises the following steps that the spray head resolution of currentlyused printing equipment and the printing resolution required by a to-be-printed image are obtained, the printing coverage times in a unit area of the to-be-printed image are acquired according to thespray head resolution and the printing resolution, a stepping mode of a spray head in the stepping direction relative to a printing medium in the printing process is acquired according to the printing coverage times, printing data required by each-time scanning of the spray head in the scanning direction are extracted from image data corresponding to the to-be-printed image according to the stepping mode, and the spray head is controlled to perform ink-jet printing according to the printing data. According to the method, the stepping mode is determined by combining the printing requirement, the problem of poor image quality caused by printing equipment characteristic errors and ink component deviation is eliminated by adopting the specific stepping mode, and therefore the quality of imageprinting is ensured.

An organic light-emitting display device which may widen a swing range of a green sub-pixel. In the organic light-emitting display device, from among red, green, and blue sub-pixels, an overlapping area of material layers forming a thin film transistor, a boost capacitor and / or a storage capacitor of the green sub-pixel is greater than an overlapping area of the same material layers forming a thin film transistor, a boost capacitor and / or a storage capacitor of the red and blue sub-pixels. Accordingly, since a swing range of the green sub-pixel having relatively high light-emitting efficiency is widened, more accurate gradation may be displayed, a reliable product may be realized, a brightness variation of the organic light-emitting display device may be reduced, and the risk of poor image quality may be reduced.

The invention discloses a plate number character vote algorithm based on SVM confidence. Aiming at a plate number recognition system based on video flows, the plate number character vote algorithm based on the SVM confidence is designed. The method comprises the steps as follows: whether voting is performed is determined according to a plate number detection result; then aiming at characteristics of plate numbers in mainland China, three SVM classifiers are trained respectively, SVMs are used for performing character recognition, and confidence corresponding to each character is output; and finally, a recognition result of each frame is voted according to the confidence, characters with the maximum confidence are selected when the voting is ended, so that a correct plate number is formed. According to the method, the plate number output finally can be guaranteed to have the highest reliability; and for conditions that the light condition is poorer, the image quality is poor, plate numbers are dirty, and the like, higher recognition rates are also realized after voting processing.

A system and method for detecting poor quality images in an optical tomography system includes an acquisition apparatus for acquiring a set of pseudo-projection images of an object having a center of mass, where each of the set of pseudo-projection images is acquired at a different angle of view. A reconstruction apparatus is coupled to receive the pseudo-projection images, for reconstruction of the pseudo-projection images into 3D reconstruction images. A quality apparatus is coupled to receive the 3D reconstruction images and operates to detect of selected features that characterize poor quality reconstructions.

The invention discloses a digital imaging acquisition system for aggregate grading detection. The system consists of an aggregate sampling device, an image acquiring device, an optical processing optimizer and communication and storage equipment, wherein the aggregate sampling device comprises a material dividing plate, a distance adjusting rod and an angle adjusting rod; the image acquiring device comprises an infrared laser, a linear array camera and an image acquiring card; the optical processing optimizer comprises a filter device and a diffuse coating layer; and the communication and storage equipment comprises a data line and a computer. A digital imaging acquisition method for aggregate grading detection comprises the following steps of: setting the aggregate sampling device; setting the image acquiring device; setting the communication and storage equipment; acquiring an image of a sampled aggregate; and transmitting and storing the image. An aggregate stream is sampled and acquired by arranging the material dividing plate, so the problem that the image of a falling stream of the aggregate must be completely acquired is solved and the defects of poor quality of the acquired image, difficult separation of particles and a large amount of processing data are overcome.

The invention puts forward a degraded image overall quality improving method in a complex environment and the method is used for solving a problem that poor image quality is caused because degrading factors are not fully overcome in conventional degraded image processing procedures in the complex environment. The degraded image overall quality improving method comprises the following steps: based on a dark channel prior theory, a dark channel of each of a plurality of degraded image frames to be processed is calculated, and therefore a plurality frames of dark channel images are obtained; via use of the plurality frames of obtained dark channel images, each frame of degraded image to be processed is subjected to defogging operation, and a plurality frames of defogged images are obtained; the plurality frames of defogged images are subjected to denoising operation, and therefore a plurality frames of denoised images are obtained; the plurality frames of denoised images are subjected to deblurring operation via a blind restoration method, and therefore a plurality frames of clear images are obtained; the plurality frames of obtained clear images are subjected to super-resolution reconstruction operation based on multiple frame and single frame combination, and finally high-resolution clear images can be obtained. Via use of the degraded image overall quality improving method, obtained images are rich in detailed information, and the degraded image overall quality improving method can be applied to the fields of safety monitoring, traffic detection, safety verification systems and the like.

The present invention discloses a display panel and a control method. The display panel has a first display area and a second display area; first gate lines in the first display area and second gate lines in the second display area have different loads. In the display phase, common electrodes located in the first display area and common electrodes located in the second display area respectively receive different common voltages, so that data signals of pixel electrodes do not need to be changed, different common voltages are provided for the common electrodes to solve the problem of poor imagequality due to the deviation of the charging voltages of the pixel electrodes, and the image display quality of the display panel is improved.

The invention provides a generative robust image steganography method, which comprises the following steps of: constructing an image data set, and preprocessing the image data set; constructing and initializing a deep learning network architecture; training a deep learning network architecture by adopting a joint-fine adjustment method to obtain a network architecture model; and generating a secret-carrying pseudo graph by using the network architecture model and carrying out secret communication to complete an image steganography process. According tothe image steganography method, a generative adversarial network StyleGAN is utilized to fuse the embedding process of the secret information into the generation process of the image; a generative image steganography architecture which can bear secret information with relatively large capacity and has certain robustness is constructed; therefore, the obtained generative image steganography method has the advantages of being large in embedded capacity, good in generated image quality, high in secret-loaded image statistics undetectability, high in practicability and the like, and the problems that an existing generative image steganography method is poor in secret-loaded image quality, low in embedded capacity, low in information extraction accuracy and the like are solved.

The invention discloses a fatigue driving recognition method and system based on multiple features, and the method and system carry out the preprocessing of an image, filter noise, and avoid problemsthat the image quality is poor and the detection precision is low because the image is affected by an external environment factor. The AdaBoost algorithm is adopted to stably, quickly and efficientlydetect the human face, so that the complexity of human face detection is reduced. According to the scale space-based face target tracking algorithm, a self-adaptive high-confidence updating strategy is adopted, and when an error occurs in a target tracking stage, the confidence of target detection is relatively low, and a model is not updated, so that the risk of drifting of the tracking algorithmis effectively reduced, and the tracking precision is improved. The SVM classifier is adopted for eye state recognition, the precision of eye state recognition is improved, and therefore the method is high in recognition precision and high in adaptability to the environment.

A method of hiding transparent electrodes on a transparent substrate coats a solution of non-conductive nanoparticles onto the transparent substrate and the transparent electrodes after forming a plurality of transparent electrodes on the transparent substrate, and both non-conductive nanoparticles and transparent electrodes have the same reflective index of light. After a high-temperature thermal processing is performed to the transparent substrate, an even mask is formed on the transparent substrate and the transparent electrodes, such that the non-conductive nanoparticles in the mask provide the same reflective index of light for the positions of the transparent substrate with and without the transparent electrodes, so as to effectively prevent a different reflective index of light at any position of the transparent substrate that will cause a poor image quality of the screen.

The present invention discloses an image fusion method and device, an electronic device and a medium. The method comprises the steps of: obtaining a color image and a black-and-white image, wherein the shooting objects of the two images are the same; detecting an overexposure area on the black-and-white image to determine a target overexposure area; expanding the target overexposure area to determine an overexposure area of the black-and-white image after expanding, and determining an area after expanding corresponding to the color image according to the overexposure area after expanding, wherein after the color image and the black-and-white image are subjected to image registration, the overexposure area after expanding and the corresponding area after expanding are matching areas; and according to a weight value, fusing an image of the overexposure area after expanding and an image of the corresponding area after expanding to generate a fusion image. The image fusion method and device, an electronic device and a medium solve the problem that the overexposure area edge is excessively unnatural to cause poor image quality and achieve the technical effect of improving the image quality.

The invention discloses an image enhancement method and a computer readable storage medium, aiming at improving the image quality. The image enhancement method includes the steps of converting an image to be processed from an RGB color space into an HIS color space; subjecting a luminance component of the image to be processed to histogram distribution statistics and histogram equalization so as to obtain a pixel value of the image to be processed; correcting histogram distribution of the luminance component of the image to be processed by histogram distribution of a luminance component of a guide image, and acquiring the luminance component of the image to be processed, wherein the guide image is part of or all of an image related to the image to be processed and higher than that in quality or part of the image to be processed; converting the luminance component of the corrected image from the HIS color space into the RGB color space. The image enhancement method has the advantages that the high-quality clear image with similar scenes is used for guiding enhancement of the poor-quality image, so that a contrast ratio of the image can be increased effectively and image details areenhanced.

An intelligent device for switching Camera Link to a serial digital interface (SDI) relates to the technical field of image processing and solves the problems that the existing various cameras based on a Camera Link interface can not display on a monitor directly and quality of displayed images is poor. The device comprises a field programmable gate array (FPGA), a digital signal processor (DSP), a synchronous dynamic random access memory (SDRAM) and an SDI module. The Camera Link interface receives image data output by a camera and transmits the image data to the FPGA, the FPGA conducts noise-reducing processing on the received image data and transmits the image data to the DSP, and the DSP receives the image data through a video port (VP), transmits the image data to the SDRAM to be stored in an EDMA mode, reads the image data in the SDRAM in an external memory interface (EMIF) bus mode and processes the data, and transmits the processed image data to the SDI module. Use and carrying of the device are convenient.

In some cases, conventional digital zoom techniques can lead to poor quality images. Disclosed are systems and methods for improving the quality of images generated by digital zoom. For example, in some embodiments, a parallel structure is utilized where an image is passed through a sharpener and a 2D directional upscaler at the same time. Upscaling operations are then performed on the sharpened image. The upscaled sharpened image is added to the output of the 2D directional upscaler to produce an enhanced image.

The invention discloses a single image defogging method based on a multi-scale self-attention generative adversarial network, and the method comprises the steps: carrying out the training of a generative adversarial network model constructed through the downsampling of an image twice through a training set formed by the normalization of the image, and obtaining a trained generative adversarial network model; and optimizing the defogging result by using a loss function in the training process, and finally inputting the foggy image into the generative adversarial network model to obtain a defogged image. According to the single image defogging method provided by the invention, the problem of poor defogged image quality in the prior art is solved.

The invention provides a word image processing method, a device, an electronic device and a computer storage medium, which relate to the technical field of image processing. The method includes: obtaining character image to be processed; extracting stroke features of the character to be reconstructed from the character image to be processed, and obtaining stroke curve parameters of the character to be reconstructed; Based on the stroke curve parameters, reconstructing the text to be reconstructed on the target canvas, and obtaining the reconstructed graph of the text to be reconstructed. Themethod of the invention firstly obtains the stroke curve parameters of the character to be reconstructed, Then, the character to be reconstructed is reconstructed on the target canvas based on the stroke curve parameters, so that the reconstructed image of the character to be reconstructed is clearer, the image quality of the reconstructed image is greatly improved, and the technical problem of the poor quality of the reconstructed image obtained by the existing image processing methods is alleviated.

The invention discloses an image fusion method and device, electronic equipment and a medium. The method comprises the steps of obtaining a color image photographed in a flash lamp turn-on state and ablack and white image photographed in a flash lamp turn-off state, wherein a photographing object of the color image is the same as the photographing object of the black and white image; carrying outregistration on the black and white image and the color image; and fusing color information of the color image to the black and white image, and generating a result image. According to the method, the device, the electronic equipment and the medium provided by the invention, the problem that in the prior art, the image quality is low due to the fact that an image generated through fusion of double cameras: a color camera and a black and white camera is limited by the color image is solved, and the technical effect of improving the image quality is improved.

The invention provides a picture processing method. The picture processing method comprises the following steps: acquiring property information of an original picture, wherein the original picture is a JPG (Joint Picture Group) picture; and when the area of the original picture is not smaller than an area threshold, converting the original picture into a PNG (Portable Network Graphics) picture, compressing the PNG picture, compressing the original picture, comparing the compressed PNG picture with the compressed original picture to obtain a size deviation between the two compressed pictures, selecting the picture obtained after the original picture is compressed when the size deviation is small and a color value of the original picture is greater than a threshold, otherwise selecting the picture obtained after PNG format compression. In the scheme, the picture is processed according to the property information of the picture, and targeted processing is performed according to a plurality of characteristics such as the picture area, a picture size and the color value, so that the size of the picture is reduced, and the quality of the picture is ensured at the same time. The method is particularly suitable for providing a proper picture format for a user in the processes of uploading, sharing and the like of pictures. The problems of overlarge picture sizes, bandwidth waste, poor image quality and the like due to an improper picture format are solved.

The embodiment of the invention discloses a fast image reconstruction method for terahertz complex-valued data based on BFGS to solve the technical problems of high computational complexity, difficult parameter adjustment, and poor reconstructed image quality of the compressed sensing terahertz data reconstruction in the prior art. The method comprises the following steps: acquiring an original terahertz signal with amplitude and phase information from a terahertz imaging system and subjecting the original terahertz signal to sparse transformation by using a sparse promotion base to obtain a sparse complex-valued signal; marking a vector obtained by converting the sparse complex value signal according to columns as a first reconstructed signal and marking a vector obtained by converting the sparse complex value signal according to rows as a second reconstructed signal; sampling the first reconstructed signal and the second reconstructed signal separately by means of compressed sensing and establishing a compressed sensing reconstruction model; and solving the reconstruction model by BFGS to obtain a restoring signal.

The invention discloses an illumination method based on picture level images. The method mainly includes the steps that an illumination equation is resolved through a particular solution Legendre polynomial in a Legendre equation; spherical harmonic coefficients are utilized, a resolved function is projected through a spherical harmonic function, and then the restored illumination equation is obtained; the illumination value of an environment map and the color value of a map are multiplied, and the obtained result is the final pixel color value. According to the illumination method based on the picture level images, the defects that in the prior art, the image processing difficulty is large, the image quality is poor, and the simulation effect is not good can be overcome, and the advantages that the image processing difficulty is small, the image quality is good, and the simulation effect is good are achieved.

A system and method for detecting poor quality images in an optical tomography system includes an acquisition apparatus for acquiring a set of pseudo-projection images of an object having a center of mass, where each of the set of pseudo-projection images is acquired at a different angle of view. A reconstruction apparatus is coupled to receive the pseudo-projection images, for reconstruction of the pseudo-projection images into 3D reconstruction images. A quality apparatus is coupled to receive the 3D reconstruction images and operates to detect of selected features that characterize poor quality reconstructions.

The invention relates to a large-aperture, short-cavity and superconducting magnetic resonance imaging (MRI) minimally invasive surgery platform system. Through the system, minimally invasive surgery treatment can be performed by means of the navigation of magnetic resonance imaging. By the adoption of the large-aperture, short-cavity and high-magnetic-field superconducting MRI technology, the bottleneck problems that in MRI minimally invasive surgery treatment, the quality of images is poor, the real time performance is poor, and the surgical space is narrow are solved. Through the short-cavity MRI technology, bidirectional minimally invasive surgery operation can be performed on the two sides of an MRI magnet, and the range of application of MRI to the minimally invasive surgery treatment is expanded. The large-aperture, short-cavity and superconducting magnetic resonance imaging (MRI) minimally invasive surgery platform system further has the fast blood flow imaging function, the diffusion coefficient imaging function, the temperature distribution imaging function, the MR perspective function and the MR endoscopy function besides the intraoperative sub-second super-fast imaging function. Compared with the existing X-CT, the large-aperture, short-cavity and superconducting magnetic resonance imaging (MRI) minimally invasive surgery platform system has the same minimally invasive surgery capacity as the X-CT, and moreover radiation hazards to medical staff and patients caused by X-rays are fundamentally eliminated.

The invention discloses a recording and photographing method, device and terminal electronic equipment. The recording and photographing method comprises: detecting a photographing instruction in the recording process; when the photographing instruction is detected, acquiring at least one frame of image of the current scene; and determining a photo of the current scene according to the quality of the at least one frame of image. According to the recording and photographing method, when the photographing instruction sent by a user is detected during recording, at least one frame of image can be photographed for the current scene, and the final image with high quality is determined as a photo according to the quality of the at least one frame of image, so that the problem of poor image quality of photos photographed in the recording process is solved without using two independent recording and photographing modules.

A video image coding apparatus which realizes appropriate allocation of an information amount to individual image divisions to reduce the difference in picture quality among different divisions of a decoded image. An input video image signal is into a plurality of image divisions by an image dividing section, and the image divisions are compressed coded by a plurality of coding sections. Resulting compression encoded data are multiplexed by a multiplexing section re-construct compression encoded data, and the compression encoded data are outputted as a compression stream. A coordinated coding control section receives some or all of coding parameters, image status parameters and coding result parameters of the coding sections and adjusts the parameters to be used for compression encoding by the coding sections in a control period or under a control condition determined in advance.

The embodiments of the invention disclose a method and a device for extracting a banknote image, equipment and a storage medium. The method includes the following steps: acquiring a to-be-extracted banknote image after tilt correction, and integerizing the to-be-extracted banknote image through a first integerizing method; taking a target image containing a to-be-extracted image from the integerized to-be-extracted banknote image; determining the boundary of the to-be-extracted image on the target image through a row projection method and a column projection method based on a sliding window, and carrying out image extraction to get the to-be-extracted image; and integerizing the to-be-extracted image through a second integerizing method. The problem that the original banknote image extraction method is slow and the extracted image is of poor quality is avoided. The method improves the quality of image extraction, and is conducive to subsequent banknote image identification.

A setting apparatus that sets a movement path of a virtual viewpoint, the setting apparatus including: a specification unit configured to specify one or a plurality of virtual viewpoints and an object of interest; and a setting unit configured to set, based on the one or the plurality of virtual viewpoints and the object of interest specified by the specification unit, the movement path of the virtual viewpoint such that a difference of image quality between objects of interest falls within a predetermined range, the object of interest existing in each of a plurality of virtual viewpoint images generated in accordance with the movement path of the virtual viewpoint.

A mechanism which can avoid, as much as possible, a difference of picture quality that is caused by restricting color printing according to an authority and forcedly performing monochromatic printing is provided. A mechanism which restricts the color printing according to the authority without deteriorating performance is also provided. The processing refers to a color restricting mode in user information or a color restricting mode in setting information. When the referred color restricting mode indicates “force”, if the user does not have the authority in which a color job can be printed, the job is forcedly converted into monochrome. In case of “analyze”, if the user does not have the authority in which a color job can be printed, the job is analyzed. If it is the color job, a forced monochromatic printing or print inhibition is performed.

The invention relates to a video coding technique and discloses a method for coding a binocular stereo video for solving problems of no flexibility, poor image quality and poor video reconstruction stability in the traditional technology. The technical scheme has the key points as follows: the method for coding the binocular stereo video comprises the following steps of: detecting scene switch by reading a left viewpoint sequence image frame by frame, and analyzing relativity and complexity of a left viewpoint time domain at the same time; and judging the coding type of a left viewpoint image to be coded, regulating an image coding sequence and determining a reference frame selection. After a left viewpoint image coding structure is determined, the coding type of a right viewpoint image is determined and left-right viewpoint images are respectively coded according to a right viewpoint time domain and the relativity of the left-right viewpoints. The invention is suitable for coding the binocular stereo video.