• Title/Summary/Keyword: template Matching

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Visual Model of Pattern Design Based on Deep Convolutional Neural Network

  • Jingjing Ye;Jun Wang
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.18 no.2
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    • pp.311-326
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    • 2024
  • The rapid development of neural network technology promotes the neural network model driven by big data to overcome the texture effect of complex objects. Due to the limitations in complex scenes, it is necessary to establish custom template matching and apply it to the research of many fields of computational vision technology. The dependence on high-quality small label sample database data is not very strong, and the machine learning system of deep feature connection to complete the task of texture effect inference and speculation is relatively poor. The style transfer algorithm based on neural network collects and preserves the data of patterns, extracts and modernizes their features. Through the algorithm model, it is easier to present the texture color of patterns and display them digitally. In this paper, according to the texture effect reasoning of custom template matching, the 3D visualization of the target is transformed into a 3D model. The high similarity between the scene to be inferred and the user-defined template is calculated by the user-defined template of the multi-dimensional external feature label. The convolutional neural network is adopted to optimize the external area of the object to improve the sampling quality and computational performance of the sample pyramid structure. The results indicate that the proposed algorithm can accurately capture the significant target, achieve more ablation noise, and improve the visualization results. The proposed deep convolutional neural network optimization algorithm has good rapidity, data accuracy and robustness. The proposed algorithm can adapt to the calculation of more task scenes, display the redundant vision-related information of image conversion, enhance the powerful computing power, and further improve the computational efficiency and accuracy of convolutional networks, which has a high research significance for the study of image information conversion.

Feature based Object Tracking from an Active Camera (능동카메라 환경에서의 특징기반의 이동물체 추적)

  • 오종안;정영기
    • Proceedings of the IEEK Conference
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    • 2002.06d
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    • pp.141-144
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    • 2002
  • This paper describes a new feature based tracking system that can track moving objects with a pan-tilt camera. We extract corner features of the scene and tracks the features using filtering, The global motion energy caused by camera movement is eliminated by finding the maximal matching position between consecutive frames using Pyramidal template matching. The region of moving object is segmented by clustering the motion trajectories and command the pan-tilt controller to follow the object such that the object will always lie at the center of the camera. The proposed system has demonstrated good performance for several video sequences.

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ZPerformance Improvement of ART2 by Two-Stage Learning on Circularly Ordered Learning Sequence (순환 배열된 학습 데이터의 이 단계 학습에 의한 ART2 의 성능 향상)

  • 박영태
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.33B no.5
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    • pp.102-108
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    • 1996
  • Adaptive resonance theory (ART2) characterized by its built-in mechanism of handling the stability-plasticity switching and by the adaptive learning without forgetting informations learned in the past, is based on an unsupervised template matching. We propose an improved tow-stage learning algorithm for aRT2: the original unsupervised learning followed by a new supervised learning. Each of the output nodes, after the unsupervised learning, is labeled according to the category informations to reinforce the template pattern associated with the target output node belonging to the same category some dominant classes from exhausting a finite number of template patterns in ART2 inefficiently. Experimental results on a set of 2545 FLIR images show that the ART2 trained by the two-stage learning algorithm yields better accuracy than the original ART2, regardless of th esize of the network and the methods of evaluating the accuracy. This improvement shows the effectiveness of the two-stage learning process.

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A P-wave Detection Algorithm by Template Matching Method (템플레이트 매칭에 의한 심전도 신호의 P파 검출 알고리즘에 관한 연구)

  • Hong, Jae-Woo;Jeong, Hee-Kyo;Shin, Kun-Soo;Lee, Myoung-Ho
    • Proceedings of the KOSOMBE Conference
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    • v.1990 no.05
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    • pp.21-24
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    • 1990
  • This paper presents a new algorithm for P-wave detection in the ECG signal, we get the peak, onset and offset point by using significant point extraction algorithm with 5-point derivative. To these set of extracted significant points, we apply amplitude and duration threshold criterion. we define the set of significant point meeting the criterion as P-wave candidate. Then P-wave candidate is classified through match-process with template. The template with maximum number or P-wave candidate is selected to be the P-wave.

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Realtime Face Tracking using Motion Analysis and Color Information (움직임분석 및 색상정보를 이용한 실시간 얼굴추적)

  • Lee, Kyu-Won
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.11 no.5
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    • pp.977-984
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    • 2007
  • A realtime face tracking algorithm using motion analysis from image sequences and color information is proposed. Motion area from the realtime moving images is detected by calculating temporal derivatives first, candidate pixels which represent face region is extracted by the fusion filtering with multiple color models, and realtime face tracking is performed by discriminating face components which includes eyes and lips. We improve the stability of face tracking performance by using template matching with face region in an image sequence and the reference template of face components.

Fast Stereo Matching Algorithm using Edge Projection

  • Ha, Jong-Eun;Kang, Dong-Joong;Kim, Jin-Young;Kim, Min-Sung
    • 제어로봇시스템학회:학술대회논문집
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    • 2005.06a
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    • pp.2389-2392
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    • 2005
  • We present fast stereo matching algorithm using edge projection. Traditional stereo matching algorithm uses 2D template for the search of corresponding point thus it requires huge the computational cost. In this paper, we reduce the 2D search problem into 1D using edge projection along vertical and horizontal direction inside the region of interest. Also, by accumulation of edge projection along vertical and horizontal direction, the edge projection within the region of interest could simply be obtained by just subtracting two values. Experimental results show that matching algorithm using edge projection also gives comparable discriminating power compared to that of using intensity.

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Vision-based Navigation using Semantically Segmented Aerial Images (의미론적 분할된 항공 사진을 활용한 영상 기반 항법)

  • Hong, Kyungwoo;Kim, Sungjoong;Park, Junwoo;Bang, Hyochoong;Heo, Junhoe;Kim, Jin-Won;Pak, Chang-Ho;Seo, Songwon
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.48 no.10
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    • pp.783-789
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    • 2020
  • This paper proposes a new method for vision-based navigation using semantically segmented aerial images. Vision-based navigation can reinforce the vulnerability of the GPS/INS integrated navigation system. However, due to the visual and temporal difference between the aerial image and the database image, the existing image matching algorithms have difficulties being applied to aerial navigation problems. For this reason, this paper proposes a suitable matching method for the flight composed of navigational feature extraction through semantic segmentation followed by template matching. The proposed method shows excellent performance in simulation and even flight situations.

Noise Reduction in Single Fiber Auditory Neural Responses Based on Pattern Matching Algorithm

  • Woo, Ji-Hwan;Miller Charles A.;Abbas Paul J.;Hong, Sung-Hwa;Kim, In-Young;Kim, Sun-I.
    • Journal of Biomedical Engineering Research
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    • v.26 no.4
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    • pp.199-205
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    • 2005
  • When recording single-unit responses from neural systems, a common problem is the accurate detection of spikes (action potentials) in the presence of competing unwanted (noise) signals. While some sources of noise can be readily dealt with through filtering or 'template subtraction' techniques, other sources present a more difficult problem. In particular, noise components introduced by power supplies, which contain harmonics of the power-line frequency, can be particularly troublesome in that they can mimic the shape of the desired spikes. Thus, standard 'template subtraction' techniques or notch-filtering approaches are not appropriate. In this study, we propose the use of a novel template-subtraction scheme that involves estimating the power-line noise waveform and using cross-correlation techniques to subtract them from the recordings. This technique requires two key steps: (1) cross-correlation analysis of each recorded waveform extracts a robust representation of the power-line noise waveform and (2) a second level of cross-correlation to successfully subtract that representation from each recorded waveform. This paper describes this algorithm and provides examples of its implementation using actual recorded waveforms that are contaminated with these noise signals. An improvement (reduction) in the noise level is reported, as are suggestions for future implementation of this strategy.