A preclinical pilot study was performed to evaluate the safety, efficacy, primary stability, and wound healing of a hybrid dental implant with unique macrogeometry design in which coronal section is narrower cylinder-shaped followed by wider, tapered apical portion, each comprising approximately one half length implant. Eighteen macrogeometry-designed implants were placed bilaterally into three foxhounds mandibular third fourth premolar first molar (P3, P4, M1, respectively) extraction...

Recent studies figure out that hidden eavesdroppers can be detected through RF (radio frequency) leakage from their local oscillators. Inspired by this finding, letter presents Phantom Eavesdropping, an emerging wireless signal eavesdropping technique which renders immune to the leakage-based detection further conceal presence. At its heart is a dynamic alteration process regarding oscillator's oscillation frequency. As result, oscillator whitened in frequency domain and thus corresponding...

This paper proposes an edge adaptive color interpolation for ultra-small HD-grade complementary metal-oxide semiconductor (CMOS) video sensor in camera phones that can process 720-p/30-fps videos. Recently, proposed methods with great image quality perceptually reconstruct the green component and then estimate red/blue using reconstructed neighbor red blue pixels. However, these require bulky memory line buffers order to temporally store components. The method uses seven or nine patterns...

In wireless communications, information is transmitted through a modulated waveform according to the associated modulation technique. However, there has been growing research transmit covertly by modulating waveforms further while pretending be normal transmission. Modulation-based steganography techniques cause malicious leakage without being aware of it nearby devices. this letter, we propose detection scheme based on wavelet analysis with various well-known wavelets (e.g., Haar, Morlet,...

Cybersecurity simulation is a useful, practical approach to provide insights counter cyber threats for organizations with large-scale, complex environment. From the micro behavior of malware on host macroscopic impact DDoS attack, various phenomena can be observed and analyzed scenarios. Many platforms cybersecurity have been developed support scenarios models different fidelity levels: live, virtual, constructive. varying Hence, interoperability between fidelities remained untrodden in...

This paper presents a novel auto white balance (AWB) algorithm for images based on an YCbCr color space. The proposed divides all the pixels into fourteen groups by Y luminance and CbCr components. For accuracy, we employ adaptive samples that can obtain sum of accumulated up to standard group estimating degree object's changes. are used adjustment relative amounts red, green, blue primary colors. In order avoid field-flicker noise video streams, adopts infinite impulse response (IIR)...

Most Wi-Fi backscatter systems have been proposed with mechanisms that decode the data from tags based on XOR operations. These XOR-based require two receivers listening and channels consider channel coding process as an obstacle to packets. We focus coding, which is a technique all use detect correct errors wireless channels. In our system, tag reflects ambient signals at symbol level transmit data. When receiver demodulates decodes these reflected signals, certain patterns of can be...

This paper proposes the algorithm that can implement high resolution images using a camera module at low cost. The result when proposed is superior to of bicubic, but hardware structure simpler than bicubic and it equipped with boost frequency remove blurs. It also eradicates ringing effectively removing

Reliable communication for Internet of Things is challenging when strong jamming signals are transmitted. The difficulty lies in the fact that order to enable reliable communication, system needs create a channel beyond signals. In this paper, we propose first resilient technique by switching from Wi-Fi ambient backscatter. Our vision backscatter makes transmitter be through frequency shifting and modulation existing proposed effective than other anti-jamming solutions it reduces frame error...

This paper proposes an improved method that uses a K-means to effectively reduce the ringing artifacts in color moving picture. To apply this K-method, we set number of groups for process two (K=2) three dimensional R, G, B space. We then value all pixels by current Bcolor each pixel calculated center values, which reduced artifacts. The results were verified calculating overshoot and slope light luminance around edges test images had been processed new algorithm. compared with unprocessed image.

Soft tissue sealing around zirconia (ZrO2) abutment is critical for the long-term stability of dental implants. The goal study to develop a strong basal lamina (BL)-mediated epithelial attachment ZrO2 via novel physicochemical immobilization method. An electrophoretic fusion (EPF) method was applied fuse phosphonic acid (PA) linker discs. Bindings PA and following protease activated receptor 4 (PAR4) were verified by Fourier-transform infrared spectroscopy (FITR). Then, discs doped in...

Gamma correction is an essential function in every display device such as CRT, plasma TV, and TFT LCD. (Po-Ming Lee, 2005) proposed gamma (γ) systems are developed to reduce the difference between non-linear curve produced by a typical formula result algorithm. The algorithms based on specific value 2.2, namely formula, f(x)=x <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">γ</sup> bit width of input out data 10bit. In order difference, system...

In this paper, we propose the use of an image signal processor (ISP) for ultra small HD grade video sensor with 3A (AWB, AE, and AF) in camera phones that can capture 720P/30fps video. order to enhance quality systems, it is necessary achieve high performance 3A. The proposed ISP also implemented on a FPGA demonstration board.

본 논문에서는 CODEC을 사용한 동영상의 손실 압축에 의해 발생하는 블러링 현상과 복원 과정 중 링잉 노이즈를 감쇄하기 위한 개선된 선명도 향상 알고리즘을 제안하였다. 기존 알고리즘은 RGB 색 좌표계의 세 가지 칼라 값을 사용하는 연산으로 인해 많은 연산량을 요구한다. 이를 개선하기 위해 YCbCr 좌표계 휘도 값만을 사용하여 연산하였다. 시뮬레이션을 통해 알고리즘과 성분인 Y 알고리즘의 성능이 동등함을 확인하였다. 또한 Kodak 표준 이미지를 연산 처리 속도 측정을 통해서 속도가 알고리즘에 비해 약 24% 향상함을 In this paper, we proposed the improved Advanced Detail Enhancement algorithm that improve blurring by lossy compression with CODEC and reduce ringing artifacts in restoration. The conventional needs...

대부분의 디지털 촬영 장치는 비용 및 속도 상의 이점을 위해 Color Filter Array(CFA)를 포함하고 있는 단일 이미지 센서를 사용한다. 따라서 완전한 컬러 영상으로 복원하기 위하여 다양한 보간 방법이 개발되고 있다. 본 논문은 이러한 방법 중, 방향성 필터를 이용하여 수직, 수평, 대각선 방향의 에지를 고려한 방법에 관한 것이다. 하드웨어 구현을 자원의 효율성을 고려하였다. Kodak 테스트 영상 24장으로 실험하여 기존 방법과 비교함으로써 제안한 방법의 성능을 확인하였다. Verilog HDL로 구현하였으며, Virtex4 FPGA 보드와 CMOS 검증하였다. Most digital cameras use a single image sensor with Array(CFA) for the advantage of costs and speed. The various color interpolation(demosaicing) algorithms are...

본 논문은 피사체의 고유의 색을 나타내기 위한 자동 백색 보정 기능에서 단색 영상에 대한 색상 왜곡현상을 보정하는 영상 검출기의 구조개선 및 성능 향상을 수행한 구조를 제안한다. 제안한 구조는 뛰어난 효율성으로 인해 모바일 폰 카메라에 널리 사용되는 Grayworld 알고리듬을 통한 기능에 적용되는 검출기로써, 입력 영상의 색 분포 특성을 파악하여 시 해당 색상을 제외한 나머지 영역으로 보정기능을 수행하도록 하는 역할을 수행한다. 기존 구조에 비해 다양한 입력에 대응 가능하며, 크기 촬영 환경에 따라 임계값의 변경이 가능하도록 설계하였다. 또한 하드웨어 구조의 간소화를 통해 대비 약 80%의 크기가 감소되었다.

This paper presents an automatic red-eye detection and correction system. In order to detect red eye, we propose use two information sources: color around the eyes eye's round shape. The is from red, highlight, skin masks. Eye-shape our proposed real-time 2-dimensional grouping algorithm called ARTS. Our method promises a natural-looking result. We designed hardware using Verilog HDL, successfully built tested it FPGA device, USB interface board, two-megapixel CMOS sensor. With TSMC 0.25-mum...