最新刊期
期 10 ， 2016
- 摘要：
In order to improve the uniformity of TFT lithography DICD, the reason for the difference of the DICD is analyzed, and a cycle improvement process is established. Its principle and method is illustrated. First, based on the principle that the photo resist absorbs the maximum light intensity on the best focal plane of the lithography system, and the DICD value is also minimum. Therefore, if the lithography plane is adjusted and the lithography plane trend is consistent with the best focal plane trend, the di 关键词：develop inspection critical dimension;the best focal plane;flatness;uniformity;the least square method- 47
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发布时间：2020-07-07
Material and Device
- 摘要：
The pressure of the energy conservation and air pollution caused by heating is extremely increasing currently. In order to solve these problems, a temperature, humidity and wind speed information acquisition system based on the Internet of Things (IoT) has been designed and achieved. This paper introduces the general structure of the system, in which the hardware circuit and the embedded software program are designed with the core of ARM microprocessor, the communication medium of the EC20 module, and conne 关键词：Internet of Things (IoT);embedded designing;energy conservation control;ARM- 46
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发布时间：2020-07-07 - 摘要：The electrophoretic display (EPD) has great prospects, since it has the advantage of paper-like display, being able to read in sunlight conditions and very low energy consumption. The change of voltage states in displaying different gray tone levels is frequently called a driving waveform. Driving waveform designing need not only take into account the display quality, but also consider the update speed, flickers and DC-Balance. A new driving method is presented in this paper. This method achieved DC-Balance, eliminating the influence of remain charge, increasing the response speed, decreasing about 25% number of flickers and ensure the image quality.关键词：electronic paper;driving waveform;flicker;DC-balance
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发布时间：2020-07-07 - 摘要：
In order to solve the problems of power consumption, portability, real-time and volume limitation of image acquisition and processing system based on PC, the text segmentation system based on SoC FPGA in-built hard-core ARM is designed. By co-design of hardware and software based on SoC FPGA hardware platform and embedded Linux development, the system realizes the image acquisition of the CMOS sensor, storage of SDRAM, data communication of two-port RAM and VGA display. In the meanwhile, ARM-based HPS contr 关键词：SoC FPGA;hard processor system (HPS);Linux;text segmentation;Watershed algorithm- 38
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- 14
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发布时间：2020-07-07
Driving and Controlling
- 摘要：
In order to realize fast and accurate binocular calibration, two pairs of orthogonal vanishing points product from square template were used. This method requires only two images. Firstly, two pairs of orthogonal vanishing point were extracted from each image; secondly, winner point and focal length on each single camera were solved by linear algorithm; thirdly, considering the radial lens distortion, distortion correction was implemented by linear constraints. During this process, the optimization differen 关键词：vanishing points;self calibration;intrinsic parameters;distortion correction;external parameters- 81
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发布时间：2020-07-07 - 摘要：
As an important feature, texture feature is very important in the category of Chinese painting, but the majority of the existing texture extraction algorithms is based on gray-scale information. To solve the problems in Chinese painting texture extraction classification, a multi-scale, multi-color domain texture feature extraction algorithm has been proposed. This algorithm combines the advantages of Contourlet transform and Gray-level Co-occurrence Matrix. In order to extract Chinese painting features by t 关键词：multi-scale analysis;contourlet transform;gray-level co-occurrence matrix;Chinese painting- 45
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- 16
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- 6
发布时间：2020-07-07 - 摘要：
In order to solve the problem that unsharp masking suffers from noise over-enhancement, halo effect and data overflow, an image enhancement algorithm based on generalized linear system and unsharp masking is proposed. Firstly, the algorithm adopts bilateral filter and generalized subtraction to decompose image and obtains the detail layer and the root layer. Then the detail layer and the root layer are dealt with adaptive gain control and contrast enhancement operation, respectively. Finally, the generalize 关键词：unsharp masking;image enhancement;generalized linear system;detail layer;base layer- 34
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- 2
发布时间：2020-07-07 - 摘要：Low-power color rendition algorithm for AMOLED is studied and the algorithm based on histogram shifting is proposed in this work. Histogram overlap area is increased by histogram shifting, thus excellent performance is achieved. The histogram at the center is set as the shifting reference. Therefore, the display power of the panel is reduced while the performance of color rendition is guaranteed. Compared with the traditional algorithms, the complexity of hardware realization is reduced because addition and subtraction are only involved in the proposed algorithm. Excellent performance of this algorithm is verified, the histogram overlap area (OA) is 23% and 43% larger than the gray-world and the white-patch algorithm, respectively. In addition, the power dissipation (PD) for image display on AMOLED screen are 96% and 73% of the gray-world and the white-patch algorithm, respectively.关键词：AMOLED;color rendition;histogram shifting;power dissipation
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发布时间：2020-07-07 - 摘要：Ultra High Definition Television (UHDTV) has been gaining popularity with its ultrahigh screen definition. However, the lack of Ultra HD resources usually leads to the result that the videos played on UHDTV are up-scaled, which may affect the display quality of the videos. Until now, there are few researches on UHDTV video display quality. In this paper, the SSIM algorithm is employed to evaluate the video coding quality, then the effects of video resolution on display quality are analyzed according to the results of the subjective experiment, and finally a video quality assessment model is proposed for UHDTV service. Experimental results and comparisons with the classic SSIM, VIFp and MOVIE metrics show that the proposed model gets increments of 1.13%, 1.89% and 2.31% in PCC, increments of 1.35%, 1.53% and 2.24% in SRCC, and decrements of 35.05%, 36.94% and 39.71% in RMSE, respectively. Thus, the proposed model can be used to estimate the video display quality on UHDTV more accurately.关键词：ultra high definition television;video display quality;video resolution;experience of end user
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发布时间：2020-07-07 - 摘要：
In order to realize the campus safety monitoring, we put forward the detection and tracking of fast moving crowd algorithm based on the PTZ camera. Camera for basic construction of campus safety monitoring is introduced. In order to achieve PTZ camera for better detecting and tracking, the mobile population was established based on the reality of precision of the camera model, the camera rotation angle constraint, the camera model. Detection and tracking of moving people are implemented by using the latest 关键词：PTZ camera;precise model;target detection and tracking;KCF- 42
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发布时间：2020-07-07 - 摘要：
Objects saliency detected by single-source image always include a lot of false alarm and leak detection. This work proposes to simplify the feature points data first and then uses it to match the multi-source images, after which we can get a mapping function between the couple images. The function is used to match the saliency results between the images so as to improve the object detection rate and reduce the leak detection rate. For the saliency detection of the objects, this work propose to improve the s 关键词：saliency;MSER;graph manifold ranking;fractal dim;CPD;false alarm controller;Adaboost- 134
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发布时间：2020-07-07
Display and Image
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