• Title/Summary/Keyword: Color-Shape

Search Result 1,818, Processing Time 0.032 seconds

Detection and Classification of Leaf Diseases for Phenomics System (피노믹스 시스템을 위한 식물 잎의 질병 검출 및 분류)

  • Gwan Ik, Park;Kyu Dong, Sim;Min Su, Kyeon;Sang Hwa, Lee;Jeong Hyun, Baek;Jong-Il, Park
    • Journal of Broadcast Engineering
    • /
    • v.27 no.6
    • /
    • pp.923-935
    • /
    • 2022
  • This paper deals with detection and classification of leaf diseases for phenomics systems. As the smart farm systems of plants are increased, It is important to determine quickly the abnormal growth of plants without supervisors. This paper considers the color distribution and shape information of leaf diseases, and designs two deep leaning networks in training the leaf diseases. In the first step, color distribution of input image is analyzed for possible diseases. In the second step, the image is first partitioned into small segments using mean shift clustering, and the color information of each segment is inspected by the proposed Color Network. When a segment is determined as disease, the shape parameters of the segment are extracted and inspected by proposed Shape Network to classify the leaf disease types in the third step. According to the experiments with two types of diseases (frogeye/rust and tipburn) for apple leaves and iceberg, the leaf diseases are detected with 92.3% recall for a segment and with 99.3% recall for an input image where there are usually more than two disease segments. The proposed method is useful for detecting leaf diseases quickly in the smart farm environment, and is extendible to various types of new plants and leaf diseases without additional learning.

Four New Species of Nemouridae (Plecoptera: Insecta) from Korea

  • Soon Ah Ham;Jong Bin Lee
    • Animal cells and systems
    • /
    • v.3 no.2
    • /
    • pp.119-125
    • /
    • 1999
  • Four new nemourid species, Amphinemura rai n. sp., Amphinemura baei n. sp., Protonemura villosa n. sp., and Nemoura espera n. sp. are described and illustrated. Amphinemura rai n. sp. closely resembles Amphinemura tragula (Kimmins) externally, but differs from Amphinemura tragula by the projections on male terminalia and the shape of the female subgenital plate. Amphinemura baei n. sp. is similar to A. bulla Shimizu in body color, size, and structure of male and female terminalia, but distinguished by the ventral sclerites of epiproct, the knobs on the sides of the epiproct, and the shape of paraprocts. Protonemura villosa n. sp. is similar to p. hotakana Ueno in body color, size, and the structure of terminalia, but distinguished by the epiproctal flagellum and ventral sclerite, the shape of the tenth tergum. Finally, Nemoura espera n.sp. is close to Nemoura alabeli Zhilt-zova In appearance, but differs by the shape and location of the ventral and dorsal sclerites of the epiproct.

  • PDF

Target Detection of Mobile Robot by Vision (시각 정보에 의한 이동 로봇의 대상 인식)

  • 변정민;김종수;김성주;전홍태
    • Proceedings of the IEEK Conference
    • /
    • 2002.06c
    • /
    • pp.29-32
    • /
    • 2002
  • This paper suggest target detection algorithm for mobile robot control using color and shape recognition. In many cases, ultrasonic sensor(USS) is used in mobile robot system to measure the distance between obstacles. But with only USS, it may have many restrictions. So we attached CCD camera to mobile robot to overcome its restrictions. If visual information is given to robot system then robot system will be able to accomplish more complex mission successfully. With acquired vision data, robot looks for target by color and recognize its shape.

  • PDF

ULTRAVIOLET ISOPHOTE SHAPES OF NEARBY ELLIPTICAL GALAXIES AND SPIRAL BULGES

  • SOHN YOUNG-JONG
    • Journal of The Korean Astronomical Society
    • /
    • v.34 no.2
    • /
    • pp.59-66
    • /
    • 2001
  • In this paper, we investigate the correlation between the radial ultraviolet color distribution and the shapes of the ultraviolet isophote for elliptical galaxies (M32, NGC 1399) and spiral bulges (of M31, M81) by using their archival UIT images. For M31, M81, and NGC 1399, the radial ultraviolet color distributions show a two-component trend; as the distance from the galactic center increase the color becomes redder in the inner region while it becomes bluer in the outer region. On the other hand, the color of M32 continues to become bluer with the increasing galactocentric distance. We also find, unlike the optical/IR images, significant variations of the position angle and the ellipticity in the ultraviolet isophotes of M31, M81, and NGC 1399 through the inner regions. For M32, the variation is significant in the outer region. Since these variation implies the triaxiality of their intrinsic shapes, we suggest that the early-type galaxies and spiral bulges with a radial color gradient in ultraviolet tend to have a triaxiality. On the other hand, the shape parameter characterized by the fourth order cosine Fourier coefficient of the isophote, a(4)/a, indicates that the systematic deviations of the ultraviolet isophotes of the four galaxies are smaller than $\~0.2\%$ in units of the semi-major axis. The latter result implies that the ultraviolet isophotes of the galaxies have a pure elliptical shape rather than the boxy or disky shapes. Therefore, there is no clear evidence of correlation between the radial ultra-violet color gradient and the boxy/disky shapes of isophotes.

  • PDF

Image Retrieval using Fast Wavelet Histogram and Color Information (고속 웨이블렛 히스토그램과 색상정보를 이용한 영상검색)

  • 김주현;이배호
    • Proceedings of the IEEK Conference
    • /
    • 2000.06d
    • /
    • pp.194-197
    • /
    • 2000
  • Wavelet transform used for content-based image retrieval has good performance in texture image. Image features for content-based image retrieval are color, texture, and shape. In this paper, we use color feature extracted from HSI color space known as most similar vision system to human vision system and texture feature extracted from wavelet histogram which has multiresolution property. Proposed method is compared with HSI color histogram method and wavelet histogram method. It is shown better performance.

  • PDF

Study for Color Planning Cases of Geriatric Hospitals for Healing Environment (치유환경을 위한 노인전문병원의 색채계획 사례 분석;NCS 색감(color nuance) 중심으로)

  • Kim, Joon-Ji;Lee, Hyun-Soo
    • Proceeding of Spring/Autumn Annual Conference of KHA
    • /
    • 2006.11a
    • /
    • pp.173-177
    • /
    • 2006
  • Color can stir up the feeling and the thinking of the human inside, and heals human's illness. The color of architecture is a systematic physical space of shape and color. In other words, color is a kind of visual language organizing a structure and interact with human. The color of hospital can be specially effective to heal the elderly. This study intends to help geriatric hospital in future to elevate remedial value and indicate basic data for adapted the elderly environment. NCS is a kind of color system based on the human psychology and nature. This study researched the color of geriatric hospital with NCS and annualized the color nuance of each spaces. As a result the distribution of color nuance show the present of the geriatric hospital's color planning.

  • PDF

The importance of nose, eye, and In-dang(印堂) region in inspecting color diagnosis (망진(望診) 찰색(察色)에 있어서 비(鼻), 안(眼), 인당(印堂)의 중요성)

  • Chang, Jun-Young;Kang, Jung-Soo;Kim, Byoung-Soo
    • Journal of Haehwa Medicine
    • /
    • v.19 no.1
    • /
    • pp.87-98
    • /
    • 2010
  • There are four kinds of diagnosis methods in oriental medicine, and viewing diagnosis(望診) is the most important method among them. There are two ways in viewing diagnosis. These are viewing shape(觀形) and inspecting color(察色). Viewing shape diagnosis includes observation on geometric curve that is made by prominence of bones or lump of flesh, and examination on symmetric disparity and balance of vertical length among three vertical section of face. Inspecting color is literally inspecting several specified region of face. By Viewing shape, we can learn about characteristic physical mechanism of individuals, and basic disposition of reaction from inside and outside infinite stimulations. On the other hand, by inspecting color, we can estimate the very present pathologic and physiologic status of the patient. the estimation is based on principle that inside body changes reveal some reflections on facial skin surface. When you diagnosis patients with inspecting color method, It is important to distinguish color delicately, and to know where to see and what to know from it. The most important and frequently mentioned regions are myong-dang(明堂), eyes(眼) and In-dang(印堂). Myong-dang(明堂) indicates nose. In-dang(印堂) indicates the space between eyebrows. Unlike myong-dang(印堂) and eyes, In-dang(印堂) is occasionally treated as a trivial region then others. But, from research on classical books of facial examination and consideration of it's locational meanings, we've learned In-dang(印堂) is very important in viewing diagnosis, because this region is crossing of the other two regions and this fact means this region expresses the spiritual status as well as physical status in one region.

A STORAGE AND RETRIEVAL SYSTEM FOR LARGE COLLECTIONS OF REMOTE SENSING IMAGES

  • Kwak Nohyun;Chung Chin-Wan;Park Ho-hyun;Lee Seok-Lyong;Kim Sang-Hee
    • Proceedings of the KSRS Conference
    • /
    • 2005.10a
    • /
    • pp.763-765
    • /
    • 2005
  • In the area of remote sensing, an immense number of images are continuously generated by various remote sensing systems. These images must then be managed by a database system efficient storage and retrieval. There are many types of image database systems, among which the content-based image retrieval (CBIR) system is the most advanced. CBIR utilizes the metadata of images including the feature data for indexing and searching images. Therefore, the performance of image retrieval is significantly affected by the storage method of the image metadata. There are many features of images such as color, texture, and shape. We mainly consider the shape feature because shape can be identified in any remote sensing while color does not always necessarily appear in some remote sensing. In this paper, we propose a metadata representation and storage method for image search based on shape features. First, we extend MPEG-7 to describe the shape features which are not defined in the MPEG-7 standard. Second, we design a storage schema for storing images and their metadata in a relational database system. Then, we propose an efficient storage method for managing the shape feature data using a Wavelet technique. Finally, we provide the performance results of our proposed storage method.

  • PDF

Study Visual Characteristics of World Cup Emblems (월드컵 엠블럼에 나타난 시각적 특징 연구)

  • YongFeng Liu
    • The Journal of the Convergence on Culture Technology
    • /
    • v.9 no.3
    • /
    • pp.519-528
    • /
    • 2023
  • The visual characteristics of the World Cup emblem play an important role in conveying culture and identity, highlighting the key elements of the Games, and strengthening the brand image. This study first investigated the visual elements and theoretical background of the emblem through previous studies. Second, the selection of symbolism, shape, and color was the subject of the study. Third, based on the shape-related theory based on the '100 National Cultural Symbols', the analysis was performed using the 'IRI Color Matching Image Scale' as a tool, and a final conclusion was drawn. The World Cup emblem uses a lot of ethnic and living symbols, and the living and ethnic symbols are expressed in a combination. In the beginning, there were many symmetric shapes, but after that it changed to an asymmetric shape. The curved expression form is more used than the straight expression form. And most of the color arrangement image scale distribution shows light, dynamic and modern color arrangement characteristics. In the future, the World Cup emblem design will continue to use national and living symbols. The shape of the emblem should use curves and asymmetric designs, be intuitive, and directly reflect the theme of the competition. In addition, the national flag color should be used as the main color, and other colors should be used as secondary colors. The combination of colors must match the light, dynamic and modern color characteristics of the IRI color scheme image scale.

Isolation and Characterization of Pure lines of Pigmentation and Morphological Mutants in Porphyra tenera Kjellman (Bangiales, Rhodophyta) (참김 (Porphyra tenera Kjellman) 색소 및 형태변이체의 순계주 분리 및 특성)

  • Hwang, Mi-Sook;Kim, Seung-Oh;Lee, Young-Soon;Park, Eun-Jeong;Kim, Seong-Cheol;Ha, Dong-Soo;Gong, Yong-Gun;Baek, Jae-Min;Choi, Han-Gu
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.43 no.5
    • /
    • pp.495-502
    • /
    • 2010
  • Pure lines were isolated from young gametophytic blades of pigmentation and morphological mutants in Porphyra tenera. Growth, blade-shape and photosynthetic pigment content of pure lines were compared with the wild type. Growth of blade length in the wild type (W, R-B), with round shape and brown color, was fastest at $5{\sim}10^{\circ}C$ and became slower as temperature increased. The blade-shape of the wild type changed from linear to round as temperature increased. The green type (R-G), with round shape and green color, showed slower growth, and the red type (R-R) 'with round shape and red color' showed faster growth than the wild type. The blade-shapes of the green and red types changed from elliptical or linear to round as temperature increased. The phycoerythrin (PE) / phycocyanin (PC) ratio of the green type was markedly lower and the PE/PC ratio of the red type was markedly higher than that of the wild type. The linear type (L-B), with liner shape and brown color, showed faster growth in blade length than the wild type at $10{\sim}20^{\circ}C$ and maintained its linear shape at $5{\sim}15^{\circ}C$. The content of photosynthetic pigments of the linear type was similar to that of the wild type. Each of the pure lines of pigmentation and morphological mutants that were isolated in the present study showed particular patterns in growth, blade-shape and photosynthetic pigment composition. Therefore, they are expected to be useful as new varieties by themselves and to be available for breeding and biotechnological studies.