• Title/Summary/Keyword: Partial image

Search Result 552, Processing Time 0.03 seconds

Face Recognition using Regional Gabor Wavelet and Neural Networks (Gabor wavelet과 신경망의 영역별 적용을 통한 얼굴 인식)

  • 최용준;이상현;정종률;최병욱
    • Proceedings of the IEEK Conference
    • /
    • 2003.07e
    • /
    • pp.2020-2023
    • /
    • 2003
  • In this paper, our proposed system uses the regional Gabor wavelet and Neural Network to implement face recognition similar to human face recognition system, because the Gator wavelet expresses visual recognition system of human mathematically and the regional Neural Network is robust to white noise and partial illumination. This system consists of two stages of building database and recognizing face. One is composed by using the supervised learning of Neural Network. At this time, the Neural Network is applied to the upper and the lower part of face images respectively. The Backpropagation algorithm is used to learn Neural Network. Another consists of calibration of slope of face image, measurement of illumination variant using deviation with average face image and similarity comparison using Euclidean distance measure.

  • PDF

Case Report on Medial Discoid Meniscus (내측 원판형 연골의 증례 보고 -1예 보고-)

  • An, Hyug-Su;Cho, Young-Ho;Kim, Dong-Young;Yun, Hee-Min;Park, Ho-Won
    • Journal of the Korean Arthroscopy Society
    • /
    • v.11 no.1
    • /
    • pp.50-53
    • /
    • 2007
  • Although the lateral discoid meniscus of the knee has been observed frequently, the medial discoid meniscus has very rarely been reported in the literature. A 22-year-old female patient was diagnosed as having a medial discoid meniscus with horizontal tear by means of magnetic resonance image and arthroscopy. The patient was treated by arthroscopic partial meniscectomy.

  • PDF

Comparison of Two Methods for Stationary Incident Detection Based on Background Image

  • Ghimire, Deepak;Lee, Joonwhoan
    • Smart Media Journal
    • /
    • v.1 no.3
    • /
    • pp.48-55
    • /
    • 2012
  • In general, background subtraction based methods are used to detect the moving objects in visual tracking applications. In this paper we employed background subtraction based scheme to detect the temporarily stationary objects. We proposed two schemes for stationary object detection and we compare those in terms of detection performance and computational complexity. In the first approach we used single background and in the second approach we used dual backgrounds, generated with different learning rates, in order to detect temporarily stopped object. Finally, we used normalized cross correlation (NCC) based image comparison to monitor and track the detected stationary object in a video scene. The proposed method is robust with partial occlusion, short time fully occlusion and illumination changes, as well as it can operate in real time.

  • PDF

Partially Decodable and Reversible Variable Length Code for Efficient Image Transmission

  • Nishida, Susumu;Muling, Guo;Hasegawa, Madoka;Kato, Shigeo
    • Proceedings of the IEEK Conference
    • /
    • 2000.07a
    • /
    • pp.458-461
    • /
    • 2000
  • Variable length codes are often used in entropy coding, but are very vulnerable in noisy environments. Reversible variable length codes, however, muse possible to decode instantaneously in both forward and backward directions, so that more usable data can be retrieved when bit errors occur via transmission. Furthermore, partial decodability is desirable to introduce in the reversible variable length code because ROI (Region Of Interest) decoding function is sometimes required in recent image information systems such as the medical imaging, the digital museum and so on. In this paper, we propose a partially decodable and reversible variable length code by modifying Golomb-Rice code.

  • PDF

Image Change Tracking System (영상 변화 추적 시스템)

  • Park Young-Hwan
    • Geophysics and Geophysical Exploration
    • /
    • v.2 no.3
    • /
    • pp.154-158
    • /
    • 1999
  • This paper introduces a partial edge detection technique, that improves the processing time of an automatic change tracking system for multi-temporal images. In the conventional change tracking systems for multi-temporal images, the edge detection is performed over the whole image. In the proposed method, however, the necessary portions for the edge detection is selected first and the edge detection is performed over the selected parts only. As a consequence, the improvement in the processing time could be achieved. The proposed change tracking system is expected to be utilized as a very efficient tool to configure changes in large data set such as remotely sensed satellite imagery or geophysical time laps images.

  • PDF

Physiological Neuro-Fuzzy Learning Algorithm for Face Recognition

  • Kim, Kwang-Baek;Woo, Young-Woon;Park, Hyun-Jung
    • Journal of information and communication convergence engineering
    • /
    • v.5 no.1
    • /
    • pp.50-53
    • /
    • 2007
  • This paper presents face features detection and a new physiological neuro-fuzzy learning method by using two-dimensional variances based on variation of gray level and by learning for a statistical distribution of the detected face features. This paper reports a method to learn by not using partial face image but using global face image. Face detection process of this method is performed by describing differences of variance change between edge region and stationary region by gray-scale variation of global face having featured regions including nose, mouse, and couple of eyes. To process the learning stage, we use the input layer obtained by statistical distribution of the featured regions for performing the new physiological neuro-fuzzy algorithm.

Intramedullary Spinal Cord Lipoma Extending from the Cervicomedullary Junction to the Upper Thoracic Cord

  • Lee, Deok-Gu;Yoon, Seok-Mann;Shim, Jai-Joon;Bae, Hack-Gun
    • Journal of Korean Neurosurgical Society
    • /
    • v.38 no.1
    • /
    • pp.71-73
    • /
    • 2005
  • A case of intramedullary spinal cord lipoma is presented. A one month-old male infant presented with irritability and weakness on his upper extremities. A magnetic resonance[MR] image of the cervical spine demonstrated a well defined, high signal intensity lesion on both T1 and T2-weighted MR images and suppression on the fat saturation sequence. The tumor mass extended from the foramen magnum to T2 vertebra level. Ventral displacement of the spinal cord with kinking of the cervico-medullary junction was evident on the T2-weighted sagittal image. Partial resection of the tumor mass through laminoplastic laminotomy from C1 to T2 resulted in improved motor weakness on his upper extremities.

A Study on the Structural Relationship of Perceived Value, Price Sensitivity, and Satisfaction between Brand Image and Purchase Intention in Overseas Direct Purchase (해외직접구매 소비자의 브랜드이미지와 구매의도 간 지각된가치, 가격민감도, 만족도의 구조적 관계 연구)

  • Jeong, Boon-Do;Kim, Ji-Hoon
    • Korea Trade Review
    • /
    • v.44 no.6
    • /
    • pp.169-185
    • /
    • 2019
  • The purpose of this study is to analyze the structural relationships of perceived value, price sensitivity, and satisfaction between brand image and purchase intention of consumers who have experience of overseas direct purchase. This study collected questionnaires used to analyze these structural relationships. Using the R's plspm package, we analyzed the PLS (partial least squares) structural equation model. In order to examine the relationship between perceived value and price sensitivity, the research model was modified and analyzed. As a result, not only the adoption of the research hypothesis, but also the goodness of fit was higher than before the research model modifying, and the relationship between perceived value and price sensitivity was further verified. The modified research model has higher academic value, so it is necessary to select it as the final proposal model.

Machine Learning Techniques for Diabetic Retinopathy Detection: A Review

  • Rachna Kumari;Sanjeev Kumar;Sunila Godara
    • International Journal of Computer Science & Network Security
    • /
    • v.24 no.4
    • /
    • pp.67-76
    • /
    • 2024
  • Diabetic retinopathy is a threatening complication of diabetes, caused by damaged blood vessels of light sensitive areas of retina. DR leads to total or partial blindness if left untreated. DR does not give any symptoms at early stages so earlier detection of DR is a big challenge for proper treatment of diseases. With advancement of technology various computer-aided diagnostic programs using image processing and machine learning approaches are designed for early detection of DR so that proper treatment can be provided to the patients for preventing its harmful effects. Now a day machine learning techniques are widely applied for image processing. These techniques also provide amazing result in this field also. In this paper we discuss various machine learning and deep learning based techniques developed for automatic detection of Diabetic Retinopathy.

A Study on Cyber Punk Fashion Expressed in the Movies (영화에 표현된 사이버 펑크패션에 관한 연구)

  • Jung Yeoun-Ja
    • Journal of the Korea Fashion and Costume Design Association
    • /
    • v.7 no.3
    • /
    • pp.181-188
    • /
    • 2005
  • This study attempted to investigate the plastic characteristics of cyber punk fashion with a focus on fashion in the cyber punk movies in order to inquire into how the influence of the cyber punk taking the lead in the spiritual culture and way of life of the humankind in the 21th century would be expressed in fashion. For this purpose, it sought to analyze the beauty of new fashion creating the cyber environment and identify its contemporary meaning. An attempt was made to investigate the image of cyber punk fashion with a focus on fashion expressed in the cyber punk movies. As a result, the following findings were obtained: First, the image of cyber punk fashion expressed in the cyber punk movies was simplicity, which was to express the modest silhouette and details exclusive of decoration. In addition to clean and smooth gloss, it contained the modest image of resistance', not 'revolt' by borrowing the partial motive and image from existing punk fashion. The change of cyber punk fashion into the characteristic of concise, smooth external appearance brought about the restraint of its image and symbolism as well as its plastic characteristic. Second, it was characterized by the Eroticism nature of emphasizing the body line while expressing the future and modest image or exposing the body. Cyber punk fashion expressed the avant-garde image by using materials that gave a mysterious and future feelings, as well as unsymmetrical silhouette, the slit of body-conscious line, coarse cutting, the method of do-constructing and reconstructing the silhouette, the method of applying diverse underwears such as corset, brassiere and the like. Third, cyber punk fashion was marked by the nature of mined sex. It had the masculine image by using the black color containing the image of masculinity and resistance in female clothing and expressing the suit, coat and military looks giving an masculine impression. And it expressed the image of mixed sexes with the masculine image in male clothing by borrowing feminine images such as body-conscious line, widely cut neckline, floral decoration, leggings and the like. Fourth, cyber punk fashion was marked by naturalness. It was expressed as clothing made from silhouette, knit, cotton and the like in the atmosphere expressing love, comfortableness and truth. This contained the image of naturalness, a return to the primitive, that human being wanted to return to their original figure in the future element. The cyber punk movie may contain a dismal, gloomy future image on the whole, which can be overcome, and shows the possibility that it may grow into the alternative culture, not the revolting culture. The movie of 'The Fifth Element' demonstrates the meaning and role that shows the bright future image. It is thought that designers should make efforts for cyber punk fashion to perform its role in changing the gloomy future image into the bright image of society

  • PDF