• Title/Summary/Keyword: Binary Method

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Fast Generation of Binary Random Sequences by Use of Random Sampling Method

  • Harada, Hiroshi;Kashiwagi, Hiroshi
    • 제어로봇시스템학회:학술대회논문집
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    • 1992.10b
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    • pp.240-244
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    • 1992
  • A new method for generation of binary random sequences, called random sampling method, has been proposed by the authors. However, the random sampling method has the defect that binary random sequence can not be rapidly generated. In this paper, two methods based on the random sampling method are proposed for fast generation of binary random sequences. The optimum conditions for obtaining ideal binary random sequences are derived.

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The Development of Programmable Controller Using Binary-Decision Method (Binary-Decision 방식을 이용한 프로그래머블 콘트롤러의 개발에 관한 연구)

  • 전병실;이준환;엄경배
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.12 no.5
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    • pp.492-504
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    • 1987
  • The Binary Decision method can evaluate any switching function in the number of steps not exceeding the number of input variables. A Binary Decision Programmable Controller module is designed using this method so as to improve scan speed. A compiler system is also developed to relieve the memory problem which the Binary Decision method entails. A communication channel between MDS and BD-PC modules is also constructed to load the compiled BD-PC object program into the memory of BD machine.

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Binary Image Data Hiding Using Advanced Run-Length Coding Method (런렝스 코딩(Run Length Coding) 기법을 이용한 이진 이미지에서의 데이터 은닉)

  • Kim, Cheon-Shik;Kim, Hyung-Joong
    • Journal of The Institute of Information and Telecommunication Facilities Engineering
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    • v.8 no.2
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    • pp.78-83
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    • 2009
  • In this paper, a novel method for data hiding into binary images is proposed. Binary image has two tones: black and white. For this reason, it is not easy to hide messages into binary images. PWLC (pair-wise logical computation) is a new method to hide message into binary images. However, it yields images of unacceptable quality and its decoding process is unclear. Therefore, in order to solve this problem, we adopt the run-length method to achieve advanced reversible data hiding. That is, we find a proper region to hide messages to reduce visual degradation. In this paper, we introduce an improved procedure to hide messages into binary images.

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Binary and Halftone Image Data Hiding Technique using Run-Length (RLE를 이용한 이진 이미지 및 하프톤 영상에 데이터 은폐 기술)

  • Kim, Cheon-Shik;Hong, You-Sik;Han, Chang-Pyoung;Oh, Seon
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.9 no.3
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    • pp.37-43
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    • 2009
  • In this paper, we proposed that a novel method base on a binary image that technique is proposed for data hiding into binary images and halftone image. A binary image is bitmap image and halftone is composed by two-tone value in a limited region in an image. For this reason, it is not easy to hide messages in binary images. PWLC is a new method to hide a message in binary images. However, it yields images of unacceptable quality, unless you should change very few of it. Therefore, in order to solve this problem, we used run-length method into binary images. That is, we find a proper region to hide messages. In this paper, we proposed new method to hide messages in binary images. In addition, we proved that our algorithm is better than PWLC through the experiment.

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A Novel Measuring Method of In-plane Position of Contact-Free Planar Actuator Using Binary Grid Pattern Image (이진 격자 패턴 이미지를 이용한 비접촉식 평면 구동기의 면내 위치(x, y, $\theta$) 측정 방법)

  • 정광석;정광호;백윤수
    • Journal of the Korean Society for Precision Engineering
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    • v.20 no.7
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    • pp.120-127
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    • 2003
  • A novel three degrees of freedom sensing method utilizing binary grid pattern image and vision camera is presented. The binary grid pattern image is designed by Pseudo-Random Binary Arrays and referenced to encode in-plane position of a moving stage of the contact-free planar actuator. First, the yaw motion of the stage is detected using fast image processing and then the other planar positions, x and y, are decoded with a sequence of images. This method can be applied to the system that needs feedback of in-plane position, with advantages of a good accuracy and high resolution comparable with the encoder, a relatively compact structure, no friction, and a low cost. In this paper, all the procedures of the above sensing mechanism are described in detail, including simulation and experiment results.

Complex Segregation Analysis of Categorical Traits in Farm Animals: Comparison of Linear and Threshold Models

  • Kadarmideen, Haja N.;Ilahi, H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.18 no.8
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    • pp.1088-1097
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    • 2005
  • Main objectives of this study were to investigate accuracy, bias and power of linear and threshold model segregation analysis methods for detection of major genes in categorical traits in farm animals. Maximum Likelihood Linear Model (MLLM), Bayesian Linear Model (BALM) and Bayesian Threshold Model (BATM) were applied to simulated data on normal, categorical and binary scales as well as to disease data in pigs. Simulated data on the underlying normally distributed liability (NDL) were used to create categorical and binary data. MLLM method was applied to data on all scales (Normal, categorical and binary) and BATM method was developed and applied only to binary data. The MLLM analyses underestimated parameters for binary as well as categorical traits compared to normal traits; with the bias being very severe for binary traits. The accuracy of major gene and polygene parameter estimates was also very low for binary data compared with those for categorical data; the later gave results similar to normal data. When disease incidence (on binary scale) is close to 50%, segregation analysis has more accuracy and lesser bias, compared to diseases with rare incidences. NDL data were always better than categorical data. Under the MLLM method, the test statistics for categorical and binary data were consistently unusually very high (while the opposite is expected due to loss of information in categorical data), indicating high false discovery rates of major genes if linear models are applied to categorical traits. With Bayesian segregation analysis, 95% highest probability density regions of major gene variances were checked if they included the value of zero (boundary parameter); by nature of this difference between likelihood and Bayesian approaches, the Bayesian methods are likely to be more reliable for categorical data. The BATM segregation analysis of binary data also showed a significant advantage over MLLM in terms of higher accuracy. Based on the results, threshold models are recommended when the trait distributions are discontinuous. Further, segregation analysis could be used in an initial scan of the data for evidence of major genes before embarking on molecular genome mapping.

Enhancing Retrieval Performance for Hierarchical Compact Binary Tree (계층형 집약 이진 트리의 검색 성능 개선)

  • Kim, Sung Wan
    • Journal of Creative Information Culture
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    • v.5 no.3
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    • pp.345-353
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    • 2019
  • Several studies have been proposed to improve storage space efficiency by expressing binary trie data structure as a linear binary bit string. Compact binary tree approach generated using one binary trie increases the key search time significantly as the binary bit string becomes very long as the size of the input key set increases. In order to reduce the key search range, a hierarchical compact binary tree technique that hierarchically expresses several small binary compact trees has been proposed. The search time increases proportionally with the number and length of binary bit streams. In this paper, we generate several binary compact trees represented by full binary tries hierarchically. The search performance is improved by allowing a path for the binary bit string corresponding to the search range to be determined through simple numeric conversion. Through the performance evaluation using the worst time and space complexity calculation, the proposed method showed the highest performance for retrieval and key insertion or deletion. In terms of space usage, the proposed method requires about 67% ~ 68% of space compared to the existing methods, showing the best space efficiency.

BER Improvement Correlation-Flattened Binary CDMA (상관도 평활화된 Binary CDMA의 BER 개선)

  • Seo, Keun-Jong;Chong, Min-Woo;Kim, Yong-Cheol
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.29 no.1C
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    • pp.9-17
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    • 2004
  • We present a performance improvement of Binary CDMA by flattening the correlation values. A Binary CDMA system, in which multi-leveled transmission signal of multi-code CDMA is clipped into a binary value, is cost-efficient since the strict linearity of the power amplifier is relieved. However, a loss of orthogonality among user channels due to the clipping causes the correlation values at the receiver to have a random distribution. If the correlation value for even a single channel goes too low, the average BER drops considerably. We developed a method of correlation flattening, where the binary chip pattern at the transmitter is adjusted so that the correlation values have averaged magnitude. Experimental results on several spreading codes show that the correlation flattening method increases the number of available channels at reduced BER.

Thermal Conductivity measurement of Binary Nanofluids by the Transient Hot-wire Method (비정상 열선법을 이용한 이성분 나노유체의 열전도도 측정)

  • Cho, Chang-Hwan;Sul, Hea-Youn;Koo, June-Mo;Kang, Yong-Tae
    • Proceedings of the SAREK Conference
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    • 2008.11a
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    • pp.165-169
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    • 2008
  • Binary nanofluids(Binary mixture + nanoparticles) have been extensively paid attention for application in absorption system as a new working fluid. Thermal property evaluation of the new refrigerants is inevitable to apply them for actual system. The objectives of this paper are to measure the thermal conductivity of the binary nanofluids by the transient hot-wire method, and to assess the application possibility of the binary nanofluids for absorption system. It was found that the thermal conductivity of the binary nanofluids ($H_2O/LiBrAl_2O_3$) increased with increasing the concentration of the nanoparticles ($Al_2O_3$) and enhanced up to 27% at 0.1 vol % of the nanoparticles.

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REVERSIBLE INFORMATION HIDING FOR BINARY IMAGES BASED ON SELECTING COMPRESSIVE PIXELS ON NOISY BLOCKS

  • Niimi, Michiharu;Noda, Hideki
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 2009.01a
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    • pp.588-591
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    • 2009
  • This paper proposes a reversible information hiding method for binary images. A half of pixels in noisy blocks on cover images is candidate for embeddable pixels. Among the candidate pixels, we select compressive pixels by bit patterns of its neighborhood to compress the pixels effectively. Thus, embeddable pixels in the proposed method are compressive pixels in noisy blocks. We provide experimental results using several binary images binarized by the different methods.

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