最新刊期
期 1 ， 2019
- 摘要：
The wide color gamut TFT-LCD need to use RGB color resin with high pigment concentration, which is easy to bad illumination and seriously affect the visual result of TFT-LCD. By studying the green Mura of TFT-LCD and electrical/optical properties of the electrical/optical test substrate with different color resin before and after light irradiation, the results show that Phthalocyanine in green pigment is the main factor of light-caused green Mura, and the Mura degree is strongly associated with the content 关键词：TFT-LCD;Light-caused green Mura;color resin;phthalocyanine;dielectric loss factor- 592
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- 87
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- 2
发布时间：2020-07-05
Materials and Device
- 摘要：In order to optimize the oxide semiconductor TFT character, I-V and SEM data is used to study the dependence of oxide semiconductor TFT character on ESL deposition. The rule of ESL silicon oxide deposition was studied by tuning the temperature, spacing, pressure and power of the deposition. Moreover, the TFT characteristic was also used to analysis ESL silicon oxide deposition. It is found that the TFT will be degraded when the ESL film is loose with multihole structure. The degradation must be attributed to the damage of IGZO semiconductor by the invasion of the vapor caused by later high temperature process. However, the TFT is also bad when the ESL film is dense manufacturing by high temperature or high pressure of deposition because of the reduction reaction between IGZO semiconductor and the enhanced plasma. The most optimization process will be obtained by dense ESL film while the disposition should be minimum damage to IGZO semiconductor.关键词：oxide semiconductor;TFT-LCD;plasma chemical enhanced vapor deposition;etch-stop layer
- 400
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- 80
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- 2
发布时间：2020-07-05 - 摘要：
A display algorithm for HDR images on LCD-LED dual modulation high dynamic display was proposed, which aimed to better display the brightness details required by HDR images and improve the visual quality. Firstly, the relationship between the HDR image brightness and the LED brightness range was established. The light diffusion function was used as the weight of the backlight LED brightness value range. Then, the weight of the different LED illumination intensity levels in the luminance radiation area of th 关键词：high dynamic range;local dimming;dual modulation structure;HDR image- 430
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- 2
发布时间：2020-07-05 - 摘要：
In order to meet the requirements of high-speed motion, high-frequency, large-scale, high-resolution image acquisition in high-end industrial detection such as printing and so on, a micron-scale high-resolution, high-speed linear array industrial camera was developed. Firstly, the function and characteristics of the high frequency and high resolution domestic CMOS image sensor GL0816 were introduced. Then, a high-speed, large-scale and high-resolution linear array industrial camera system was designed based 关键词：CMOS image sensor;high resolution;line array;FPGA;gigE vision2.0- 338
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- 15
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- 1
发布时间：2020-07-05 - 摘要：
The preparation method and square resistance improvement method of patterning graphene by photolithography were introduced. The process and the bad mechanism for increasing square resistance of patterning graphene by photolithography were analyzed. Firstly, the patterning process of graphene was completed and optimized effectively through the development of the semiconductor process. Then, the mechanism for increasing square resistance of patterning graphene by photolithography was analyzed. Finally, the pr 关键词：photo;graphene;square resistance;critical dimension- 375
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- 29
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- 1
发布时间：2020-07-05 - 摘要：
In order to eliminate the influence of temperature change on the imaging quality of the airborne mirror-lens optical system during the actual flight, thermal analysis of the optical components and mechanical structures of the system was carried out to realize the athermal design of the airborne mirror-lens optical system. First, the power temperature function of the lens was derived from the power formula of the lens, and the athermal equation of the lens group was listed. Then, the axial magnification was 关键词：athermalization design;mirror-lens optical system;axial magnification;visible light- 380
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- 15
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- 1
发布时间：2020-07-05 - 摘要：The composition, working mode and function test of the multivariate synchronous data acquisition and storage system based on DSP were introduced from hardware and software aspects. The system was mainly composed of a host computer and a digital acquisition and storage unit. The hardware part of the digital acquisition and storage unit included a power supply module, a duty circuit module, a data acquisition module, a data storage module, and a clock synchronization module. The system used DSP as the central processing chip, and used the synchronized second pulse to trigger the analog-to-digital conversion chip to achieve synchronous data. The CF card was used as a storage medium to realize data self-storage. The software part realized self-checking, synchronization, data acquisition and storage functions. The testing results show that the system functions are stable, and the synchronization precision is within 100 ns.关键词：DSP;synchronous acquisition;data storage
- 350
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- 17
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- 0
发布时间：2020-07-05 - 摘要：
In order to quantitatively analyze the impact of different anti-blue light glasses on the three factors of color on screen display, the spectral distribution of OLED screen and LCD with LED backlight at 6 500 K and 5 000 K color temperature were collected separately, and the transmissivity data of current five anti-blue light glasses made by different materials in large sales volume were adopted. Through OriginPro fitting, chrominance software analysis and Matlab calculation, a quantitative comparison was c 关键词：displays;photobiological;blue light;spectroscopy analysis;colorimetry- 404
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- 50
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- 1
发布时间：2020-07-05 - 摘要：In order to provide users with a true viewing experience, a panoramic video virtual view synthesis system based on view angle for 3DOF+ video was built, which could accurately render arbitrary viewpoint position by using video information with few viewpoint positions. Comparing the synthesized new viewpoint position view with the real view collected by the camera, the experimental results show that the synthesized objective view has an average objective index PSNR of about 23 dB, good subjective quality, and is realistic and can provide good interactivity and visual experience.关键词：virtual reality;panoramic video;view synthesis;visual experience
- 357
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- 12
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- 0
发布时间：2020-07-05
Materials and Devices
- 摘要：
Face detection needs to locate the position of the face in an image before face recognition. In the paper, a face detection algorithm based on skin color location was presented for rapidly locating face position. Firstly, the actual obtained color images were converted into YCbCr and HSI space images. The numerical values of Cb and Cr image were rounded. A lot of spaces of background were eliminated with combining the thresholds of Cb, Cr, H and S. Secondly, the Cb and Cr values of the color part of the pre 关键词：face detection;YCbCr;skin color location- 353
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- 4
发布时间：2020-07-05 - 摘要：
Switch median filters are very suitable for detection and removal of the salt and pepper noise. An algorithm based on signal local difference and an algorithm based on signal directional difference for detecting salt and pepper noise were designed in this article. Both of them belong to two-stage noise detection algorithms, and the first-stage detection for both is based on gray-scale range criterion. The difference between the two algorithms embodies in the second-stage detection. The former is based on lo 关键词：image denoising;salt and pepper noise;switch two-stage detection;image edge;image detail- 321
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- 11
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- 1
发布时间：2020-07-05 - 摘要：
In order to realize the defect detection of lotion pump in the industrial production, the sample images at four angles:the top section of pump, the upper section of pump, the lower section of pump and the tail tube of pump were collected. The classification models of each angle were also constructed respectively to detect defect samples at various angles based on the principle of migration learning and convolutional neural network in deep learning. Firstly, the network model was pre-trained by the Mini-Imag 关键词：deep learning;transfer learning;convolutional neural network;lotion pump;defect detection- 371
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发布时间：2020-07-05 - 摘要：In order to improve the quality of image dehazing, the triangle loop dichotomy algorithm is presented. Firstly, the dark channel prior is used to analyze the image dehazing. Secondly, using triangle loop dichotomy algorithm, the atmospheric light value is calculated accurately, the hazing image is divided into four triangular areas along the diagonal line, and the supreme hazing area is dichotomized only, which is selected the midpoint and connected the vertex of the longest side. The cycle execution is ended until satisfying the preset threshold. Thirdly, the adaptive transmission is made to avoid the color distortion. Finally, the algorithm process was given. The simulation results show that the triangle loop dichotomy algorithm is more clear in visual perception after image dehazing, number of edge sets, average gradient, the histogram similarity coefficient and the comprehensive evaluation index are better than other algorithms. It can satisfy the requirements of image clearness and information.关键词：loop;area threshold;adaptive;image dehazing
- 311
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- 14
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- 2
发布时间：2020-07-05 - 摘要：
Moving target detection is the basis for tasks such as target tracking, traffic monitoring and behavior analysis. However, in the video images captured by UAV, objective factors such as drone movement, propeller rotation or wind will affect the detection of moving targets, these uncertainties may cause failure during the detection. It is very important to reduce the interference, improve the detection accuracy, and make the UAV play an important role in the field of motion detection in the information age. 关键词：UAV video images;motion estimation;frame difference method;background modeling method;optical flow method;algorithm evaluation- 493
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- 80
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- 6
发布时间：2020-07-05 - 摘要：
Aiming at the problem that angular Softmax loss exists in strong constraint, an algorithm to fine-turn the angular Softmax loss pre-training model by using triple loss in angle space was proposed in this paper. Firstly, the original structure of convolution neural network was improved and the convolution kernels of 1×1 and pooling layers were added between different residual blocks to select more effective features. Secondly, the pre-training model was fine-tuned by triple loss in angular space to reduce th 关键词：face recognition;convolutional neural network;angular Softmax loss;triple loss;feature addition- 432
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- 11
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- 3
发布时间：2020-07-05
Image Processing
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