Hand gesture recognition has become one of the key techniques human-computer interaction (HCI). Many researchers are devoted in this field. In paper, firstly history hand is discussed and technical difficulties also enumerated. Then, we analyze definition introduce basic principle it. The approaches for recognition, such as vision-based, glove-based depth-based, contrasted briefly paper. But former two methods too simple not natural enough. Currently, new finger identification technique with...

High-precision measurement of permittivity and thickness enables advanced quality control microwave substrates. In this article, a subwavelength planar sensor is proposed, which composed single-microstrip transmission line with pair coupled circular complementary spiral resonators (CSRs). Thus, two robust band-stop notches in the response are developed, can be utilized for simultaneous measurements dielectric sheet. The mutual capacitance inductance, quantify coupling effect between...

With the development of machine learning, as a branch deep learning has been applied in many fields such image recognition, segmentation, video and so on. In recent years, also gradually to food recognition. However, field degree complexity is high, situation complex, accuracy speed recognition are worrying. This paper tries solve above problems proposes method based on neural network. Combining Tiny‐YOLO twin network, this two‐stage mode YOLO‐SIMM designs two versions YOLO‐SiamV1...

In this paper, a highly sensitive octagonal spiral sensor is presented that can be applied to measure the permittivity of solid materials with high accuracy. Compared traditional split-ring resonator (SRR)-based configuration, confinement electric field in gap polygon improved by increasing number sides, which leads higher measurement sensitivity. By compromising between ease processing and sensitivity improvement, an structure finally obtained. To determine sensitivity, differential scheme...

Rosemary extracts are natural antioxidants, which can be considered an alternative for synthetic antioxidants in the food industry. The aim of present study was to evaluate oxidation stability and shelf-life rosemary combined with vitamin C (VC) ascorbyl palmitate (AP) peanut oil stored at 65°C. Peanut tertbutyl hydroquinone (TBHQ) without additives served as positive negative controls, respectively. peroxide value (POV), thiobarbituric acid reactant (TBARs), conjugated diene (CD), triene...

With the increasing popularity of Internet and diversity information obtaining technologies, amount quickly growing has gone beyond our imaginations. Many techniques were presented to help users find desired from large data set accurately, automatic summarization is an effective approach. In this paper, after careful investigation, existing are classified as five categories: extraction, understanding-based summarization, based on discourse user-query. The history outlined. principles...

One-slot link scheduling is important for enhancing the throughput capacity of wireless sensor networks. It includes two aspects: maximum links (MLS) and weighted (MWLS). In this paper we propose heuristic algorithms NP-hard problems with obvious power assignments under SINR (signal-to-interference-plus-noise-ratio) model. For MLS, an algorithm MTMA (maximum tolerance minimum affectance), which improves currently best approximation by 28%–62% on average. MWLS, give effective MWMA performs...

An electrically tunable metasurface is designed for radar cross-section (RCS) reduction application in this paper. It consists of 24 × cells individually loaded with variable capacitors so that their phase profiles can be independently controlled by the bias voltage. Therefore, based on diffusive scattering principle and reflect-array theory, we arrange adaptive differences between adjacent basic elements reconfigure appropriate distribution determined a genetic algorithm (GA) corresponding...

Abstract The technology of Artificial Intelligence (AI) brings tremendous possibilities for autonomous vehicle applications. One the essential tasks is environment perception using machine learning algorithms. Since cyclists are vulnerable road users, cyclist detection and tracking important sub-tasks vehicles to avoid vehicle-cyclist collision. In this paper, a robust method presented based on multi-layer laser scanner, i.e., IBEO LUX 4L, which obtains four-layer point cloud from local...

Wireless Local Area Network (WLAN) technology has evolved very quickly in recent years. This paper introduces several new trends the development of WLAN technology. Activities and progress standardization organization WLAN, e.g. IEEE 802.11, are introduced. Next generation technology, a key enabling to make easy use, together with low power extended radio coverage analyzed this paper.

Heterogeneous computing system is one of the focuses researched in field distributed nowadays. It composed various heterogeneous processors interconnected with high-speed networks. And it can acquire rapid processing computationally intensive applications to meet diverse needs. In system, a key issue for high performance schedule tasks and allocate nodes properly. this paper, first I introduce problem task scheduling describe four kinds methods. Next analyze basic ideas some representative...

In this paper, a novel compact microstrip fractal patch antenna with uni-planar photonic bandgap (UC-PBG) structure is designed. The proposed suited for multi-band application in wireless network. A new cell of UC-PBG structures antennas adopted to suppress the surface waves and improve radiation patterns. With structure, represents frequency-independent attributes based on geometrically self-similarity, it can be widely used other application.

To suppress the impulse noise in image of welded joint effectively, improved switching median (ISM) filter is proposed. In algorithm, local statistics based detector adopted to classify pixels into uncorrupted and pixels. The noise-free are left unprocessed. number counted estimate density image, on which suitable filtering means remove noise. Experimental results show that ISM can effectively while preserving fine details very well. gains obvious advantage over (SM) filter, extremum value...

In the previous study of dynamic packet filtering technique, Counting Bloom Filter (CBF) algorithm was adopted to implement rule's adding and deleting dynamically. However, drawbacks CBF, i.e., low memory utilization, limited rule capacity high false positive rate, are obvious. this paper, d-left (d-left CBF) is exploited improve performance filtering. Through usage algorithm, compared with approximately 56 times space saved. addition, increasing allocation, rate CBF decreases more...

This paper proposes a genetic algorithm based optimization technique for the design of on-chip antenna. Genetic can be used to find out optimal parameters enhance loop quality factor, and meet constraints at same time. When process condition is fixed, 0.3723, which 50% higher than got with traditional condition. And if not 6.0928.

It is known that metasurface composed of randomly distributed subwavelength unit cells with different reflection phases features some specific electromagnetic behaviors, which diffuse scattering property can be applied to reduce Radar Cross Section (RCS). In this paper, a cell based on shunt resonance designed. Since provide stable phase distribution within the range between its double resonant frequency points, variation slight. Equivalent transmission line model presented proves effective...