期刊文献+
共找到6,007篇文章
< 1 2 250 >
每页显示 20 50 100
Target acquisition performance in the presence of JPEG image compression
1
作者 Boban Bondzulic Nenad Stojanovic +3 位作者 Vladimir Lukin Sergey A.Stankevich Dimitrije Bujakovic Sergii Kryvenko 《Defence Technology(防务技术)》 SCIE EI CAS CSCD 2024年第3期30-41,共12页
This paper presents an investigation on the effect of JPEG compression on the similarity between the target image and the background,where the similarity is further used to determine the degree of clutter in the image... This paper presents an investigation on the effect of JPEG compression on the similarity between the target image and the background,where the similarity is further used to determine the degree of clutter in the image.Four new clutter metrics based on image quality assessment are introduced,among which the Haar wavelet-based perceptual similarity index,known as HaarPSI,provides the best target acquisition prediction results.It is shown that the similarity between the target and the background at the boundary between visually lossless and visually lossy compression does not change significantly compared to the case when an uncompressed image is used.In future work,through subjective tests,it is necessary to check whether this presence of compression at the threshold of just noticeable differences will affect the human target acquisition performance.Similarity values are compared with the results of subjective tests of the well-known target Search_2 database,where the degree of agreement between objective and subjective scores,measured through linear correlation,reached a value of 90%. 展开更多
关键词 JPEG compression Target acquisition performance image quality assessment Just noticeable difference Probability of target detection Target mean searching time
下载PDF
The Discourse-Historical Approach of Identity Construction in Corporate Promotional Videos for External Publicity Image
2
作者 Xiaodong Wang Jing Yu 《Proceedings of Business and Economic Studies》 2024年第2期178-183,共6页
Corporate identity construction of external publicity image is an important part of the development of enterprises.Based on Wodak’s discourse-historical approach,this study takes the text of COFCO’s English promotio... Corporate identity construction of external publicity image is an important part of the development of enterprises.Based on Wodak’s discourse-historical approach,this study takes the text of COFCO’s English promotional video as the research object,analyzes the corporate brand image,media image,organizational image,and environmental image constructed by the enterprises from three steps:linguistic expression,discourse strategy,and theme to provide references for Chinese enterprises to enhance their international influence. 展开更多
关键词 Corporate promotional videos External publicity image Discourse-historical approach
下载PDF
The motion analysis of fire video images based on moment features and flicker frequency 被引量:9
3
作者 LIJin FONG +3 位作者 N.K.,CHOW W.K.,WONG L.T.,LUPuyi XUDian-guo 《Journal of Marine Science and Application》 2004年第1期81-86,共6页
In this paper, motion analysis methods based on the moment features and flicker frequency features for early fire flame from ordinary CCD video camera were proposed, and in order to describe the changing of flame and ... In this paper, motion analysis methods based on the moment features and flicker frequency features for early fire flame from ordinary CCD video camera were proposed, and in order to describe the changing of flame and disturbance of non-flame phenomena further more, the average changing pixel number of the first-order moments of consecutive flames has been defined in the moment analysis as well. The first-order moments of all kinds of flames used in our experiments present irregularly flickering, and their average changing pixel numbers of first-order moments are greater than fire-like disturbances. For the analysis of flicker frequency of flame, which is extracted and calculated in spatial domain, and therefore it is computational simple and fast. The method of extracting flicker frequency from video images is not affected by the catalogues of combustion material and distance. In experiments, we adopted two kinds of flames, i. e. , fixed flame and movable flame. Many comparing and disturbing experiments were done and verified that the methods can be used as criteria for early fire detection. 展开更多
关键词 fire video images moment features flicker frequency
下载PDF
Fabric Wetting and Wicking Measurement Based on Dynamic Image Acquisition and Processing 被引量:1
4
作者 张瑞云 潘宁 姜福青 《Journal of Donghua University(English Edition)》 EI CAS 2010年第4期544-550,共7页
After a brief review of existing methods for fabric wetting and wicking measurement,a new numerical approach based on dynamic image acquisition and analysis was proposed to study the liquid wetting and wicking propert... After a brief review of existing methods for fabric wetting and wicking measurement,a new numerical approach based on dynamic image acquisition and analysis was proposed to study the liquid wetting and wicking properties of woven fabrics.A measuring system was first developed to record on-site the images of liquid ascending in fabrics for a certain period of time.The hardware and software platforms and the experimental methods were described,and the image processing and analysis as well as other related algorithms were discussed in detail.The liquid front curves and rising rates in wetting and wicking were eventually obtained towards different fabrics.From liquid wicking curves,relationship between liquid ascending height and liquid ascending time agrees well with the Washburn theory.The data comparison between the numerical measurement and the traditional test proves the reliability of the numerical results. 展开更多
关键词 wetting and wicking image processing woven fabric image dynamic acquisition
下载PDF
QoE Assessment and Prediction Method for HighDefinition Video Stream Using Image Damage Accumulation 被引量:2
5
作者 Yang Geng Luoming Meng +2 位作者 Yao Wang Yu Yang Zhiguo Qu 《China Communications》 SCIE CSCD 2016年第7期48-59,共12页
The accuracy of the traditional assessment method of the quality of experience(Qo E) has been facing challenges with the growth of high-definition(HD) video streaming services.Image display-quality damage is the main ... The accuracy of the traditional assessment method of the quality of experience(Qo E) has been facing challenges with the growth of high-definition(HD) video streaming services.Image display-quality damage is the main factor that affects the Qo E in HD video services through UDP network transmission.In this paper,we introduce a novel objective factor known as image damage accumulation(IDA) to assess user's Qo E in HD video services.First,this paper quantitatively analyzed the effect on user quality of experience by IDA and established a mapping relationship between mean opinion scores and IDA.Furthermore,the probability of image damage caused by compression and transmission were analyzed.Based on this analysis,an objective Qo E assessment and prediction method for HD video stream service that evaluated the user experience according to IDA are proposed.The proposed method can achieve assessment and prediction accuracy on three distinct subjective tests. 展开更多
关键词 high-definition video stream quality of experience(QoE) image damage accumulation
下载PDF
A survey on image and video stitching 被引量:9
6
作者 Wei LYU Zhong ZHOU +1 位作者 Lang CHEN Yi ZHOU 《Virtual Reality & Intelligent Hardware》 2019年第1期55-83,共29页
Image/video stitching is a technology for solving the field of view(FOV)limitation of images/videos.It stitches multiple overlapping images/videos to generate a wide-FOV image/video,and has been used in various fields... Image/video stitching is a technology for solving the field of view(FOV)limitation of images/videos.It stitches multiple overlapping images/videos to generate a wide-FOV image/video,and has been used in various fields such as sports broadcasting,video surveillance,street view,and entertainment.This survey reviews image/video stitching algorithms,with a particular focus on those developed in recent years.Image stitching first calculates the corresponding relationships between multiple overlapping images,deforms and aligns the matched images,and then blends the aligned images to generate a wide-FOV image.A seamless method is always adopted to eliminate such potential flaws as ghosting and blurring caused by parallax or objects moving across the overlapping regions.Video stitching is the further extension of image stitching.It usually stitches selected frames of original videos to generate a stitching template by performing image stitching algorithms,and the subsequent frames can then be stitched according to the template.Video stitching is more complicated with moving objects or violent camera movement,because these factors introduce jitter,shakiness,ghosting,and blurring.Foreground detection technique is usually combined into stitching to eliminate ghosting and blurring,while video stabilization algorithms are adopted to solve the jitter and shakiness.This paper further discusses panoramic stitching as a special-extension of image/video stitching.Panoramic stitching is currently the most widely used application in stitching.This survey reviews the latest image/video stitching methods,and introduces the fundamental principles/advantages/weaknesses of image/video stitching algorithms.Image/video stitching faces long-term challenges such as wide baseline,large parallax,and low-texture problem in the overlapping region.New technologies may present new opportunities to address these issues,such as deep learning-based semantic correspondence,and 3D image stitching.Finally,this survey discusses the challenges of image/video stitching and proposes potential solutions. 展开更多
关键词 image stitching video stitching Panoramic stitching REGISTRATION ALIGNMENT Mesh optimization Deep learning 3D stitching
下载PDF
Digitalization of Underwater Video Image Using High Speed DSP Chip
7
作者 许茹 《High Technology Letters》 EI CAS 1999年第1期49-53,共5页
This paper introduces a system based on Tls fifth generation DSP(Digital Signal Processor) device-TMS320C50 to construct the simplest system of digitalizing underwater video signal. The system realizes collecting 3 di... This paper introduces a system based on Tls fifth generation DSP(Digital Signal Processor) device-TMS320C50 to construct the simplest system of digitalizing underwater video signal. The system realizes collecting 3 different density image data by means of software designation. The system may expand its outer data memory to 4 Giga byte by using a technology of memory page extension. Two different interface circuits for different speed peripheral devices and C50 are also designed: one is high speed A/D, and the other is static memory whose access time is 70ns. The system can digitalize analog video signal and process the gathered data in limited time. 展开更多
关键词 UNDERWATER video image DSP Software COLLECTION Extended frame memory
下载PDF
Video learning based image classification method for object recognition
8
作者 LEE Hong-ro SHIN Yong-ju 《Journal of Central South University》 SCIE EI CAS 2013年第9期2399-2406,共8页
Automatic image classification is the first step toward semantic understanding of an object in the computer vision area.The key challenge of problem for accurate object recognition is the ability to extract the robust... Automatic image classification is the first step toward semantic understanding of an object in the computer vision area.The key challenge of problem for accurate object recognition is the ability to extract the robust features from various viewpoint images and rapidly calculate similarity between features in the image database or video stream.In order to solve these problems,an effective and rapid image classification method was presented for the object recognition based on the video learning technique.The optical-flow and RANSAC algorithm were used to acquire scene images from each video sequence.After the selection of scene images,the local maximum points on comer of object around local area were found using the Harris comer detection algorithm and the several attributes from local block around each feature point were calculated by using scale invariant feature transform (SIFT) for extracting local descriptor.Finally,the extracted local descriptor was learned to the three-dimensional pyramid match kernel.Experimental results show that our method can extract features in various multi-viewpoint images from query video and calculate a similarity between a query image and images in the database. 展开更多
关键词 image classification multi-viewpoint image feature extraction video learning
下载PDF
Single-Phase Velocity Determination Based in Video and Sub-Images Processing:An Optical Flow Method Implemented with Support of a Programmed MatLab Structured Script 被引量:1
9
作者 Andreas Nascimento Edson Da Costa Bortoni +2 位作者 José Luiz Goncalves Pedro Antunes Duarte Mauro Hugo Mathias 《Journal of Software Engineering and Applications》 2015年第6期290-294,共5页
Important in many different sectors of the industry, the determination of stream velocity has become more and more important due to measurements precision necessity, in order to determine the right production rates, d... Important in many different sectors of the industry, the determination of stream velocity has become more and more important due to measurements precision necessity, in order to determine the right production rates, determine the volumetric production of undesired fluid, establish automated controls based on these measurements avoiding over-flooding or over-production, guaranteeing accurate predictive maintenance, etc. Difficulties being faced have been the determination of the velocity of specific fluids embedded in some others, for example, determining the gas bubbles stream velocity flowing throughout liquid fluid phase. Although different and already applicable methods have been researched and already implemented within the industry, a non-intrusive automated way of providing those stream velocities has its importance, and may have a huge impact in projects budget. Knowing the importance of its determination, this developed script uses a methodology of breaking-down real-time videos media into frame images, analyzing by pixel correlations possible superposition matches for further gas bubbles stream velocity estimation. In raw sense, the script bases itself in functions and procedures already available in MatLab, which can be used for image processing and treatments, allowing the methodology to be implemented. Its accuracy after the running test was of around 97% (ninety-seven percent);the raw source code with comments had almost 3000 (three thousand) characters;and the hardware placed for running the code was an Intel Core Duo 2.13 [Ghz] and 2 [Gb] RAM memory capable workstation. Even showing good results, it could be stated that just the end point correlations were actually getting to the final solution. So that, making use of self-learning functions or neural network, one could surely enhance the capability of the application to be run in real-time without getting exhaust by iterative loops. 展开更多
关键词 Optical Flow Single-Phase Velocity video and image Processing Sensing MatLab Script
下载PDF
Visibility Enhancement of Scene Images Degraded by Foggy Weather Condition: An Application to Video Surveillance
10
作者 Ghulfam Zahra Muhammad Imran +4 位作者 Abdulrahman M.Qahtani Abdulmajeed Alsufyani Omar Almutiry Awais Mahmood Fayez Eid Alazemi 《Computers, Materials & Continua》 SCIE EI 2021年第9期3465-3481,共17页
:In recent years,video surveillance application played a significant role in our daily lives.Images taken during foggy and haze weather conditions for video surveillance application lose their authenticity and hence r... :In recent years,video surveillance application played a significant role in our daily lives.Images taken during foggy and haze weather conditions for video surveillance application lose their authenticity and hence reduces the visibility.The reason behind visibility enhancement of foggy and haze images is to help numerous computer and machine vision applications such as satellite imagery,object detection,target killing,and surveillance.To remove fog and enhance visibility,a number of visibility enhancement algorithms and methods have been proposed in the past.However,these techniques suffer from several limitations that place strong obstacles to the real world outdoor computer vision applications.The existing techniques do not perform well when images contain heavy fog,large white region and strong atmospheric light.This research work proposed a new framework to defog and dehaze the image in order to enhance the visibility of foggy and haze images.The proposed framework is based on a Conditional generative adversarial network(CGAN)with two networks;generator and discriminator,each having distinct properties.The generator network generates fog-free images from foggy images and discriminator network distinguishes between the restored image and the original fog-free image.Experiments are conducted on FRIDA dataset and haze images.To assess the performance of the proposed method on fog dataset,we use PSNR and SSIM,and for Haze dataset use e,r−,andσas performance metrics.Experimental results shows that the proposed method achieved higher values of PSNR and SSIM which is 18.23,0.823 and lower values produced by the compared method which are 13.94,0.791 and so on.Experimental results demonstrated that the proposed framework Has removed fog and enhanced the visibility of foggy and hazy images. 展开更多
关键词 video surveillance degraded images image restoration transmission map visibility enhancement
下载PDF
ADVANCES IN FRACTAL IMAGE AND VIDEO CODING 被引量:2
11
作者 O.C. An L.K. Ma M.L. Lion(Dept. of Electrical and Electronic Engineering, Hong Kong University of Science and Technology, Hong Kong.) 《电路与系统学报》 CSCD 1996年第1期6-18,共13页
ADVANCESINFRACTALIMAGEANDVIDEOCODING¥O.C.An;L.K.Ma;M.L.Lion(Dept.ofElectricalandElectronicEngineering,HongKo... ADVANCESINFRACTALIMAGEANDVIDEOCODING¥O.C.An;L.K.Ma;M.L.Lion(Dept.ofElectricalandElectronicEngineering,HongKongUniversityofSci... 展开更多
关键词 分形编码 分形图象译码 分形视频译码 图象编码
下载PDF
A New Electronic Instrumentation Approach for the Acquisition of Microscopic Blood Smear Images for the Automatic Diagnosis of Anemia
12
作者 Jerome Nango Alico Sié Ouattara Alain Clement 《Advances in Bioscience and Biotechnology》 2020年第6期237-255,共19页
Anemia is a blood abnormality that affects the quantity and quality of red blood cells in the human body. This sometimes banal sign spares no continent and no social stratum. This anomaly is generally appreciated thro... Anemia is a blood abnormality that affects the quantity and quality of red blood cells in the human body. This sometimes banal sign spares no continent and no social stratum. This anomaly is generally appreciated through biological analyzes of patients</span><span style="font-family:Verdana;">’</span><span style="font-family:Verdana;"> blood. These analyzes, which boil down to the knowledge of hemato-metric constants, cannot by themselves allow the characterization of certain forms of anemia in the sense that most anemia are related to the morphology and color of red blood cells. Our work in this paper is to perform blood smears on patients and perform a morphological and colorimetric analysis of red blood cells on these smears. This approach allowed us to highlight on each erythrocyte morphological and colorimetric descriptors to accurately identify the types of anemia by image processing methods. This identification is performed in an automated environment to allow pathologists to respond quickly to anemia-related emergencies and also improve the treatment to be conducted. This automation required the implementation of a new approach to electronic instrumentation and the acquisition of microscopic blood smear images for the automatic and rapid diagnosis of anemia. 展开更多
关键词 ANEMIA INSTRUMENTATION acquisition Automated Blood Smears Red Blood Cells Morphological Descriptors Colorimetric Descriptors image Processing Diagnosis
下载PDF
Image Acquisition Method Based on TMS320DM642
13
作者 Li Liu Yining Liu 《Journal of Computer and Communications》 2017年第5期119-124,共6页
In order to achieve high-speed, real-time and accurate, an image acquisition method based on digital signal processor (DSP) TMS320DM642 is proposed for the paper currency image acquisition [1]. System will be high spe... In order to achieve high-speed, real-time and accurate, an image acquisition method based on digital signal processor (DSP) TMS320DM642 is proposed for the paper currency image acquisition [1]. System will be high speed digital signal processing (DSP) technology and complex programmable logic device (CPLD) and CIS acquisition module combination, the structure of acquisition system is given and the time series analysis, during the process of collecting this kind of design has the advantages of simple implementation, high recognition rate [2]. 展开更多
关键词 Digital Signal PROCESSOR (DSP) image acquisition System CIS Sensor Complex PROGRAMMABLE LOGIC Device (CPLD) Work Time-Sequence PROGRAMMABLE LOGIC
下载PDF
RESEARCH ON KEY THECHNOLOGIES OF PORNOGRAPHIC IMAGE/VIDEO RECOGNITION IN COMPRESSED DOMAIN
14
作者 Zhao Shiwei Zhuo Li Wang Suyu Shen Lansun 《Journal of Electronics(China)》 2009年第5期687-691,共5页
Pornographic image/video recognition plays a vital role in network information surveillance and management. In this paper, its key techniques, such as skin detection, key frame extraction, and classifier design, etc.,... Pornographic image/video recognition plays a vital role in network information surveillance and management. In this paper, its key techniques, such as skin detection, key frame extraction, and classifier design, etc., are studied in compressed domain. A skin detection method based on data-mining in compressed domain is proposed firstly and achieves the higher detection accuracy as well as higher speed. Then, a cascade scheme of pornographic image recognition based on selective decision tree ensemble is proposed in order to improve both the speed and accuracy of recognition. A pornographic video oriented key frame extraction solution in compressed domain and an approach of pornographic video recognition are discussed respectively in the end. 展开更多
关键词 Pornographic image/video Compressed domain Skin detection Key frame extraction
下载PDF
The Reality of Nigerian Image From the Perspective of The Home Videos
15
作者 Sunday Olayinka Alawode Uduakobong Sunday 《Journalism and Mass Communication》 2014年第3期180-196,共17页
The home video through its offering plays pivotal roles of information, education and entertainment. It has provided knowledge to the viewing audience and directs their attention to issues to think about and/or learn.... The home video through its offering plays pivotal roles of information, education and entertainment. It has provided knowledge to the viewing audience and directs their attention to issues to think about and/or learn. Popularly called Nollywood, the home video industry has brought scholars, reporters, reviewer, journalists, investors, and different kinds of people to the country; to investigate, invest, and observe the industry or network with people. Through the portrayals and representations of Nigeria and its people, a lot of people, especially foreigners and Nigerians in the Diaspora have come to understand the socio-economic and political terrain of the nation based on the home videos offerings; thus the need to x-ray the depictions in the Nigerian home video films to ascertain the reality of their Nigerian image from the perspectives. The study was undertaken through content analysis of 50 video films which were televised as programmes on television stations in Lagos and Africa Magic (a cable network station), within the framework of agenda-setting and cultivation theories. The results reveal that while the home video producers have effectively revealed Nigerians as religious and traditional people, very little has been done to portray the economic and investment potentials of the nation; the nation's symbols like flags, coat of arm, currencies amongst others are barely revealed; negative attitudes of get-rich-quick, get-rich-at-all-cost, witchcraft, and fetish practices as well as violence, hooliganism, and ritualism amongst other things are often exaggerated in the films. Following the home video portrayals and representations, it could be imagined that the Nigerian urban environment is as beautiful and rich with predominantly affluent and flamboyant people as are depicted in the home videos. The misrepresentations, overrepresentations, and under-presentations of the nation's image in the home video can be very detrimental to the nation's socio-economic development especially as the nation's destiny is indirectly related to its image. They can further pose challenges to the attitudes and responses of people from other nations to the Nigerian citizens within and outside the country. Furthermore, some Nigerian citizens, especially the youths could aspire to and learn certain lifestyles and attitudes projected in the home videos as acceptable. 展开更多
关键词 REALITY image home video PERSPECTIVE
下载PDF
Detection and Selection of Moving Objects in Video Images Based on Impulse and Recurrent Neural Networks
16
作者 Ihar Yeuseyenka Ihar Melnikau Ihar Yemelyanov 《Journal of Data Analysis and Information Processing》 2022年第2期127-141,共15页
The purpose of the article is to develop a methodology for automating the detection and selection of moving objects. The detection and separation of moving objects based on impulse and recurrence neural networks simul... The purpose of the article is to develop a methodology for automating the detection and selection of moving objects. The detection and separation of moving objects based on impulse and recurrence neural networks simulation. The result of the work is a developed motion detector based on impulse and recurrence neural networks and an automated system developed on the basis of this detector for detecting and separating moving objects and is ready for practical application. The feasibility of integrating the developed motion detector with Emgu CV (OpenCV) image processing package, multimedia framework functions, and DirectShow application programming interface were investigated. The proposed approach and software for the detection and separating of moving objects in video images using neural networks can be integrated into more sophisticated specialized computer-aided video surveillance systems, IoT (Internet of Things), IoV (Internet of Vehicles), etc. 展开更多
关键词 Automated System video image PIXEL NEURON Neural Network
下载PDF
Images of Women in Nigerian Home Videos: An Impact Assessment
17
作者 Uchenna Patricia Ekwugha Allen Nnanwuba Adum Uche Victor Ebeze 《Journalism and Mass Communication》 2015年第7期309-323,共15页
This research is about the relationship between Nigerian home videos production, women and cultural ideologies. It is general agreed that there is a sexist problem which has dominated the entire mass media. The study ... This research is about the relationship between Nigerian home videos production, women and cultural ideologies. It is general agreed that there is a sexist problem which has dominated the entire mass media. The study researches that an impact assessment of the images of women in Nigerian home videos is designed to examine the sway Nigerian home videos portrayal of women have on women's position and status in the society. The study also investigates the influence of home videos on women's and girl's perception of themselves and its effect on their development potentials. With 300 respondents drawn from a select range of home videos viewers, a survey research was designed using Awka-urban, Capital of Anambra State, Nigeria as the research area and finds a negative perception of women as regards their image portrayal in the home videos by the viewers. However, this image portrayal has a negative effect on the development potentials of women and that of girl child and as well reflects on how women are seen and treated in Nigerian society. 展开更多
关键词 imageS Nigerian home videos PORTRAYAL
下载PDF
Research on the Video Detection of Human Respiratory Motion Based on Sequential Images
18
作者 LUO Bin LIU Bo ZHU Yu 《International English Education Research》 2019年第2期40-42,共3页
Objective:Explore the feasibility of the high precision accelerometer for measuring the human respiratory displacement.Methods:A wireless acceleration acquisition system with the low power consumption and the high pre... Objective:Explore the feasibility of the high precision accelerometer for measuring the human respiratory displacement.Methods:A wireless acceleration acquisition system with the low power consumption and the high precision was designed with the high precision acceleration sensor ADXL355 as the core device.Based on the frequency characteristics of the breathing motion and the principle that the displacement can be calculated by the acceleration quadratic integration,two displacement measurement algorithms for the quasi-periodic weak motion are designed.Results:The simulation results show that the proposed algorithm is effective.The experimental results show that the designed acquisition system and algorithm can calculate the human respiratory displacement.Conclusion:The high precision accelerometer can be used to measure the human respiratory displacement,which provides a new method for the measurement of the human respiratory displacement. 展开更多
关键词 SEQUENCE image HUMAN BREATHING MOVEMENT video detection technology application
下载PDF
Pilling Image Acquisition method for Complicated Texture Fabric
19
作者 Xue-bo Zeng Zeng-bo XU Hong-jian QU 《International English Education Research》 2015年第3期108-112,共5页
In order to solve the problem of complicated fabric texture interference on the pilling segmentation during the objective evaluation of fabric pilling, a new method of pilling image acquisition was proposed. Firstly, ... In order to solve the problem of complicated fabric texture interference on the pilling segmentation during the objective evaluation of fabric pilling, a new method of pilling image acquisition was proposed. Firstly, multi-direction lights were projected on the pilled fabric surface and its pilling images were captured, which mixed with invariant fabric background texture and pilling profile information modulated by the variant light projections. The captured fabric pilling images were analyzed by independent component analysis method. Using the spectrum feature analysis method, the independent components belonging to the complicated fabric background texture were separated and the pilling images are reconstructed with the left components. The experimental results showed that this method can effectively separate the pilling image from complicated fabric texture, which provides one possibility for colored fabric pilling objective evaluation. 展开更多
关键词 fabric pilling Texture analysis image acquisition Objective evaluation
下载PDF
The Influence of Short Video on City Image Dissemination in the New Media Era——Taking Tik Tok as an Example
20
作者 Jianghui Liu Wenxuan Yang Shaohui Li 《教育研究前沿(中英文版)》 2020年第1期6-10,共5页
With the popularity and rise of Chongqing,Chengdu,Xi’an and other cities on the short video platform,short video is increasingly becoming a new weapon for the construction and dissemination of the city image.Research... With the popularity and rise of Chongqing,Chengdu,Xi’an and other cities on the short video platform,short video is increasingly becoming a new weapon for the construction and dissemination of the city image.Researching on the content,methods and effects of the hottest video APP Tik Tok,this paper adopts research methods of case analysis and text analysis to investigate how short videos promote the spread of urban image,and explore how they can enhance urban image transmission in the new media era in a better way. 展开更多
关键词 New Media Short video City image Tik Tok DISSEMINATION
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部