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Owing to its potential to satisfy all outstanding queries for the same data item with a single response, on-demand data broadcast becomes a widely accepted approach to dynamic and scalable wireless information dissemination. In some emerging applications, such as road traffic navigation system, users may query multiple data items which have to be received before a deadline. However, in existing works,...
Based on LOD algorithm of triangle collapse, a optimal triangle collapse algorithm is proposed, in which Threshold is imported according to mesh simplification extent to control collapse error, thus the new collapse vertex is determined based on certain collapse error and LODs of 3-D model is generated. And more, interpolating algorithm between different LODs is brought forward and smooth transition...
On-line fault detection problem for a type of SISO networked control systems was studied. The delay of forward loop can be avoided by located the smart nodes. A self-adaptive predicted technology was used to compensate the delay of feedback loop. The networked induced delay can be obtained by time-stamp. A fault detection algorithm for a type of fault was presented to monitor the NCS on-line. The...
In order to overcome the defect of physic-chemical monitoring system and enhance the intelligence of biological monitoring technology, an online monitoring system of fish behavior is proposed in this paper. The main contributions of this system are as follows: 1) adaptive background updating algorithm (ABU); 2) automatic camshift tracking algorithm (ACT) with twice searching; 3) particle filter tracking...
In this paper, spherical panoramic image construction and real-time navigation based on spherical panoramic image are studied. Blank image hole is eliminated through the way of "inverse interpolation";image matching through a hierarchical search strategy and spherical panoramic image is constructed through image fusion; real-time virtual navigation based on spherical panoramic image is implemented...
On-demand broadcast is an effective data dissemination approach in mobile computing environments. Previous studies on on-demand broadcast were under the assumption that each client requests only one data item at a time. This assumption may not be practical for the increasingly sophisticated mobile applications. In this paper, we focus on multi-item requests. We analyze the request overlapping characteristic...
Fast and accurate positioning of corn image is a premise to variable spray. In this paper, a method of locating the centre of strains based on over-segmentation positioning block projection was raised against the growth characteristics and overlapping leaves of hole-sowing plant. Hole-sowing corn was studied as the research objective. Tests showed that the locating error was within 30mm, and the locating...
The development of real-time image quality assessment algorithms is an important direction on which little research has focused. This paper presents a design of real-time implementable full-reference image quality algorithms based on the SSIM index and multi-scale SSIM (MS-SSIM) index. The proposed algorithms, which modify SSIM/MS-SSIM to achieve speed, are tested on the LIVE image quality database...
This paper describes improvements in three-dimensional environment, a set of numerical models for the simulation of natural object (e.g. sun, cloud, light). We take into account the direct solar and simulate an animated sun in 3D environment. In this environment, we create a cloud layer hemisphere with animated procedural clouds. The scene allows the computation of some classical parameters (such...
Glucomannan extracted from konjac was sulfated (konjac oligo-glucomannan sulfate, OGMS) to show selective anti-hepatitis B virus activity in vitro using HepG2–2.2.15 cell line as the host cell of Hepatitis B virus. OGMS straight inhibited the secretion of HBsAg, HBeAg and HBV-DNA Replication in HepG2–2.2.15 cell by ELISA and FQ-PCR. The studies indicated that OGMS mainly acted as an HBsAg inhibitor...
On-demand broadcast is an effective wireless data dissemination technique to enhance system scalability and capability to handle dynamic user access patterns. Traditional on-demand broadcast is under the assumption that only one data item can be retrieved by mobile clients in each time unit. However, the above constraint limits bandwidth utilization and throughput of broadcast systems. In this paper,...
On-demand broadcast is an effective wireless data dissemination technique to enhance system scalability and capability to handle dynamic data access patterns. Previous studies on time-critical on-demand data broadcast were under the assumption that each client requests only one data item at a time. With rapid growth of time-critical information dissemination services in emerging applications, there...
On-demand broadcast is an effective wireless data dissemination technique to enhance system scalability and capability to handle dynamic user access patterns. Previous studies on time-critical on-demand data broadcast were under the assumption that each client requests only one data item at a time. With rapid growth of time-critical information dissemination services in emerging applications, there...
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