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For the purpose of improving the multi-axis synchronous control precision for shaft-less drive printing press, this paper presents a leader-follower mode based flocking control method. First, based on flocking intelligence theory, as well as the use of graph theory and matrix theory, the interaction relation of each agent is described and the distributed synchronous control strategy is proposed. Next,...
In this paper, we present a technique to remove the noise of a depth map while fill the missing regions of the depth map. Generally, the depth map is degraded during the sensing process, thermal noise, the condition of the atmosphere, and the occlusion by the objects. Different to the previous works which only adopt the joint image filters directly, we propose an automatic multi-resolution approach...
This paper presents a non-invasive device with near-infrared (NIR) light for the analysis of tissue components, particularly the blood oxygen saturation and hemoglobin concentration, by using photon diffusion equation. The device equips with a multispectral (7 wavelengths) LED and multiple sensors of different spatial distances to the LED source. An optimal fitting of the measurement data obtained...
Human physiological and psychological changes could be acquired by biofeedback instruments and self-report questionnaire. People are likely to generate various physiological and psychological changes when situating distinct lighting. For this reason, this study aims to discuss the effects of environments with different light sources, such as reading, practical training, working, and sleeping, on human...
Traffic in wireless networks has become more diverse due to various applications running on smartphones. Moreover, traffic generated by background processes which has small amount of data and widely dispersed in time takes up a large portion of diverse data applications. To reduce signaling overhead due to frequent state transitions of radio resource control (RRC), the evolved nodeB (eNB) tends to...
Nanostructure-based sensors are capable of sensitive and label-free detection for biomedical applications. However, plasmonic sensors capable of multiplexed highly sensitive detection with high-throughput and low-cost fabrication techniques are desirable. Here, we utilize a thermal-annealed template-stripping method to fabricate large-area double-layer gold nanostructures on polymer films with low...
This paper proposes a multiscale 3D keypoint detection method based on local weighted dissimilarity measure. At first, compute the local weighted dissimilarity measure of each vertex at different scale. Then determine the detecting scale of each vertex. Finally compare the local weighted dissimilarity measure of each vertex with those of its neighboring surface points at its detecting scale. The keypoint...
Three-Dimensional (3D) range cameras have recently appeared in the marketplace for use in surveillance (e.g. cameras affixed to inanimate objects) applications. We present FreeGlassTmas a wearable hands-free 3D gesture-sensing Digital Eye Glass system. FreeGlass comprises a head-mounted display with an infrared range camera, both connected to a wearable computer. It is based on the MannGlasTmcomputerized...
Since the data storage capacity per unit area of a QR code is very limited, it is restricted in various QR code applications. In this work, we propose an approach based on visual skew to improve the data capacity of the QR code. Our method can enhance the capacity of the QR code per unit area by using different angle views to combine several QR codes together. The storage capacity of the proposed...
Energy saving and quality of service (QoS) support are two important issues of Long-Term Evolution Advanced (LTE-A) wireless networks. Unfortunately, achieving high energy saving efficiency often implies degradation of QoS support. In this paper, we address the issue of QoS support under Discontinuous Reception (DRX), the power saving mechanism of LTE-A. Different from previous studies which analyzed...
A number of forensic techniques have been developed to identify the use of digital multimedia editing operations. In response, several anti-forensic operations have been designed to fool forensic algorithms. One operation that has received considerable attention is median filtering, since it can be used for image enhancement or anti-forensic purposes. As a result, several median filtering detectors...
A high gain ultra-wideband (UWB) low noise amplifier (LNA) with notch filter for 5.8 GHz interference rejection is presented in this paper. For extending the bandwidth with a considerably gain flatness, the UWB LNA uses the stagger tuning technique of two stages with different resonant frequencies. The notch filter with extremely high quality factor provides high rejection ratio to eliminate the in-band...
This paper proposes an adaptive mode and modulation coding switching (AMMCS) scheme for multiple-input multiple-output (MIMO) multicasting system. More specifically, in addition to the adaptively chosen modulation and error coding, two types of MIMO modes are adaptively switched, i.e., between spatial multiplexing (SM) mode, which can achieve higher data rate, and spatial diversity (SD) mode, which...
Recent OpenGL ES 2.0 API Specification for embedded systems graphics operations requires programmable vertex shaders to process vertex data. In order to facilitate 3D coordinate transformation and lighting operations, vertex shaders usually contain single instruction multiple data (SIMD) datapath and a special function unit (SFU). In this paper, we present a new design of the vertex shader processor...
Silicon dioxide (SiO2) was inserted between p-Si and intrinsic zinc-oxide (i-ZnO) to improve the photo responsivity of p-i-n heterojunction photodiodes (HPDs) with a structure of p-Si/SiO2/i-ZnO/n-ZnO. The i-ZnO and n-ZnO layers were grown on the p-Si substrate by radio-frequency (RF) magnetron sputtering system. Observations found that the p-i-n HPDs with SiO2 insertion can reduce the leakage current...
Red and blue light spectrums has apparent effect on plant growth; however, for ordinary on-the-market products, the spectra of fluorescent lamps lack these parts of light. Light intensities of these fluorescent lamp ballasts are not suitably regulated and long-term stabilized. This paper proposes a light source composed of cold cathode fluorescent lamps (CCFLs), red LEDs (R-LEDs) and blue LEDs (B-LEDs)...
This paper presents “FreeGlass”, a hands-free user-buildable wearable computer system based on Mann's “Digital Eye Glass” (also known as EyeTap) concept developed 35 years ago. Like Mann's “Eye Glass”, FreeGlass is based on free and Open Source principles consistent with a free and open i-Society. FreeGlass is suitable for researchers and creators of AR (Augmediated Reality) Glass, LifeGlogging, etc...
To verify system-wide properties on SoC designs in Constrained Random Verification (CRV), the default set of constraints to generate patterns could be overridden frequently through the complex testbench. It usually results in the degradation of pattern generation speed because of low hit-rate problems. In this paper, we propose a technique to preprocess the solution space under each constraint set...
<?Pub Dtl?>An ultra-low-power consumption and ultra-low local oscillator (LO) power double-balanced down-conversion mixer using standard 90-nm CMOS technology is presented in this paper. By employing a weak inversion biasing technique in a source-driven topology, the proposed -band mixer can operate at microwatt power consumption of 453 and has an ultra low LO power of ...
H.264/AVC video delivered through erroneous network has been reported weaker to errors when intra-refresh is used in multiple reference frame structure. This paper proposes a new reference selection method to improve this inefficient error resilience.
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