• Title/Summary/Keyword: image assessment

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Analysis for the Distribution of the Heat Generated on a Nanji Waste Landfill in Using Landsat TM Image (LANDSAT TM 영상에 의한 난지도 매립지의 발생열 분포해석)

  • Yang, I.T.;Kim, M.D.;Yun, B.H.;Kim, Y.J.
    • Journal of Environmental Impact Assessment
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    • v.4 no.2
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    • pp.59-70
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    • 1995
  • The solution-state of a reclaimed waste would be known to the method in using an analysis for seepage. But it is not the best method in the huge landfill reclaimed all kinds of the waste at random. Especially in case of the landfill called the Nan Gi-do located along the Han-river, it is difficult to judge the generative seepage to be flowed in to the Han-river. So to plan the effective stabilization on a landfill, it is very useful survey method using the Landsat TM image. Operating a heat-distribution analysis with the Landsat TM image, in case of a landfill not having definite data, we would assume the reclaimed sections of the waste to judge a solution-speed late comparatively such as a industry waste or a harmful waste through the heat change.

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A Motion Adaptive Multi-Frame Interpolation Algorithm (움직임 적응형 멀티프레임 보간 알고리즘)

  • 김희철;채종석;최철호;권병헌;최명렬
    • Proceedings of the IEEK Conference
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    • 2000.06d
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    • pp.54-57
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    • 2000
  • In this paper, we propose a new interpolation method by using the motion between two moving image frames. In the proposed method, the movement is detected by using neighborhood pixels of target pixel in the past frame and the present frame. Then, H-shaped pseudomedian filter (below HPMED) is used for the still part of the image and Delta-shaped interpolation filter (below $\Delta$-shaped) for used in the moving part of the image. We detect the movement by comparing the differences between pixels in 4${\times}$5 window of the past frame and the present frame; the difference has a critical value. We simultaneously accomplish checking PSNR(peak signal noise ratio) and subjective assessment that is placed the focus on edge characteristic for assessment of result in computer simulation. The results show that the proposed adaptive method is better than the conventional methods.

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Quantitative Image Qualify Assessment for Block-based DCT Image Coder using Human Visual Characteristics (인간시각특성을 이용한 블록기반 DCT 영상 부호화기의 정량적 화질 평가)

  • Chung, Tae-Yun
    • Journal of the Korean Institute of Intelligent Systems
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    • v.12 no.5
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    • pp.424-431
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    • 2002
  • This paper proposes a new quantitative image assessment model which is essential to verify the performance of block-based DCT coding. The proposed model considers not only global distortions such as frequency sensitivity and channel masking using HVS based visual model, but also distortions including several local distortions caused by block-based coding.

Microfluidic Image Cytometry (μFIC) Assessments of Silver Nanoparticle Cytotoxicity

  • Park, Jonghoon;Yoon, Tae Hyun
    • Bulletin of the Korean Chemical Society
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    • v.33 no.12
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    • pp.4023-4027
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    • 2012
  • Cytotoxicity assessment of silver nanoparticles (AgNPs) was performed using MTT-based microfluidic image cytometry (${\mu}FIC$). The $LC_{50}$ value of HeLa cells exposed to AgNPs in the microfluidic device was estimated as 46.7 mg/L, which is similar to that estimated by MTT-based IC for cells cultured in a 96 well plate (49.9 mg/L). These results confirm that the ${\mu}FIC$ approach can produce cytotoxicity data that is reasonably well-matched with that of the conventional 96 well plate system with much higher efficiency. This ${\mu}FIC$ method provides many benefits including ease of use and low cost, and is a more rapid in vitro cell based assay for AgNPs. This may aid in speeding up data acquisition in the field of nanosafety and make a significant contribution to the quantitative understanding of nanoproperty-toxicity relationships.

The Analysis of Temporal and Spatial Variation on the Vegetation Area of the Siwha Tidat Flat (시화 갯벌식생범위의 시-공간적 변이 분석)

  • Jeong, Jong-Chul
    • Journal of Environmental Impact Assessment
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    • v.20 no.3
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    • pp.349-356
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    • 2011
  • This research is aim to analyze of changing landscape and according to phenological cycle from image information of coastal environment obtained by multi-media were analyzed by camera and satellite image. The digital camera and satellite image were used for tidal flat vegetation monitoring during the construction of Sihwa lake. The vegetation type and phenological cycle of Sihwa tidal flat have been changed with the Sihwa lake ecosystem. The environment changes of Sihwa tidal flat area and ecological change were analyzed by field work digital camera images and satellite images. The airborne, UAV and satellite images were classified with the changed elements of coastal ecological environment and tidal flat vegetation monitoring carried out the changed area and shape of vegetation distribution with time series images.

Relationship between Image-processed Color Content and Human Color Visibility Estimation of Natural Forest Scenes

  • Yhang, Wii-Joo
    • Journal of Environmental Science International
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    • v.11 no.8
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    • pp.765-771
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    • 2002
  • The current study investigated the relationship between image processed data and human visibility data for natural forest scenes from the perspective of color. In particular, the results indicated relatively low Pearson product-moment correlations between the color ratings obtained from the two methods used in the study. The first method measured the color content of slides using a image processing program, while the second used a panel of human judges to rate the color content of each slide.

A Study on Assessment of Face Image with Color Correction of Base Makeup - Focussed on the complementary color contrast - (베이스 메이크업의 컬러보정을 통한 얼굴이미지 상승효과에 관한 연구 - 보색대비를 중심으로 -)

  • Barng, Kee-Jung;Kim, Kyung-Hee;Mun, Yung-Kyung
    • Journal of Fashion Business
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    • v.14 no.1
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    • pp.43-56
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    • 2010
  • In the modern 21st century society, the personal image is considered to be very important. As a result, the importance of presenting one's personal image through personal color in fashion and beauty related fields are increasing, and is the most realistic and practical field of color. When the color of the wardrobe and the skin color are in disharmony, that disharmony becomes the source of the lines and wrinkles that appear on one's face, resulting in shades. The boundary that is created when the color of the wardrobe and the skin color are in disharmony, it works negatively on one's image. When color arrangements are close or similar (in harmony) or are in complementary color arrangements or in strong contrasting state (contrasting harmony), it is generally believed to be beautifully harmonious. Personal color assessment is finding colors, through systematic and scientific methods, that improve the personal image by reaching harmony with skin colors that each and every individual are uniquely born with. In this study, one was able to learn the improved visual effects of the face image through creating harmony with the wardrobe and color shade make up and complementary colors that were selected based on personal colors. The base make up, through using the contrasting effects of the complementary colors which represents the supplementing, correcting, and complementing of the face image by contrasting with complementary colors, brings positive changes through correcting the base skin color. It is believed that this study finds its importance in that the improved image that is created by the overall harmony of the wardrobe and body can be used as valuable data in marketing and new product development efforts in the related industries.

An Image Quality Requirement Quantified Control Method in Display Development Life Cycle

  • Xue, Liqin;Zou, Xuecheng
    • 한국정보디스플레이학회:학술대회논문집
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    • 2006.08a
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    • pp.660-664
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    • 2006
  • A novel quantified method based on requirement analysis of image quality to improve display image quality was proposed. Nowadays, the image quality was limited by the poor understanding of the image quality requirement, which led to the critical factors of image quality could not be controlled during display development. Our method was set up to resolve this problem by clarifying the relationship between the image quality level and the effect factors in image processing. Moreover, the subjective factors were eliminated extremely by the image quality quantification. The method was applied in the RPTV development life cycle and its efficiency was demonstrated.

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Product Image Concentration System as a Design Strategy to Build Corporate Brand Image (기업 브랜드 이미지 구축을 위한 디자인 전략으로서의 제품 이미지 집중 체계)

  • Kim, Hyun
    • Archives of design research
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    • v.16 no.2
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    • pp.375-384
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    • 2003
  • This study is on the strategy for establishing successful corporate brand image, by understanding the need for increasing brand value based on the level of brand recognition. In order to carry this out, the PICS (Product Image Concentration System) is suggested, which includes Brand Image Analysis on a high-level, Product Image Programming based on the result of the image analysis, and Product Image Coherency Assessment and Management, resulting in setting up a guideline for gaining competitive advantage and brand management. Brand Image Analysis is a method that utilizes image association to understand brand disposition by analyzing the association pattern among available visual materials to measure the corporate and brand image inclinations. As the next step, Product Image Programming establishes design philosophy and principles based on the analysis of brand image, and the Visual Programming is a process for visualizing the intended product image direction. Lastly, Product Image Coherency Assessment examines whether to incorporate design philosophy and principles or not to arrive at an agreed evaluation criteria for developing designs coherent with the brand image. The PICS (Product Image Concentration System) is a practical method for increasing a company' competitive advantage and managing brand. The expectation on this system is to provide a guideline for applying brand image in design process more objectively. For further study, diversification of image spectrum based on expressive keywords and comparative analysis on images as well as a product image interpretation program to understand the order of visual materials will be necessary.

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Technology Trends on Image/Video Perceptual Quality Assessment (정지영상 및 동영상 인지화질 측정 기술 동향)

  • Lee, D.Y.;Kim, J.H.;Jeong, S.Y.;Cho, S.H.;Kim, H.Y.;Choi, J.S.
    • Electronics and Telecommunications Trends
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    • v.33 no.3
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    • pp.11-21
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    • 2018
  • Assessment technologies regarding the perceptual quality of images and videos have been receiving significant attention, as they serve as essential tools for monitoring and improving the quality of various media services. In this paper, we review the technology trends of recent studies on the perceptual quality assessment of images and videos, and discuss the future direction of this research field.