sba, a C/C++ package for generic sparse bundle adjustment is almost invariably used as the last step of every feature-based multiple view reconstruction vision algorithm to obtain optimal 3D structure and motion (i.e. camera matrix) parameter estimates. Provided with initial estimates, BA simultaneously refines motion and structure by minimizing the reprojection error between the observed and predicted image points.
標簽： adjustment invariably package generic
上傳時間： 2013-12-18
上傳用戶：xsnjzljj
This article focuses dc motor control and simulaion in Matlap Simulink SimPower and establish the continuity of human motion in each image frame
標簽： and establish simulaion Simulink
上傳時間： 2017-09-09
上傳用戶：stvnash
自主移動機器人是目前機器人發展的主流，隨著其應用領域的不斷擴展和自動化程度的進一步提高，對機器人的功能提出了更高的要求，特別是需要各種具有不同智能程度的機器人，能夠設定自己的目標，規劃并執行自己的任務動作，不斷適應環境的變化。在移動機器人相關技術研究中，導航技術是其核心，而路徑規劃是導航技術研究的一個重要環節和組成部分。路徑規劃是智能移動機器人研究的核心內容之一，它起始于20世紀70年代，迄今為止，已有大量的研究成果報道[1]。大多數國內外文獻將此問題稱為Path Planning，Find-Path Problem， Collision-Free，Obstacle Avoidance，Motion Planning，etc．。所謂移動機器人路徑規劃技術，是指移動機器人在一定的環境（通常具有障礙物）中，能夠按照某種標準，如工作代價最小、行走路線最短、行走時間最短等，自行規劃出一條到達指定終點的無碰路徑，同時高效完成作業任務。
標簽： 機器人；路徑
上傳時間： 2015-03-16
上傳用戶：Freesky1
The AP2406 is a 1.5Mhz constant frequency, slope compensated current mode PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell lithium-Ion (Li+) battery. The AP2406 can supply 600mA of load current from a 2.5V to 5.5V input voltage. The output voltage can be regulated as low as 0.6V. The AP2406 can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. Idle mode operation at light loads provides very low output ripple voltage for noise sensitive applications. The AP2406 is offered in a low profile (1mm) 5-pin, thin SOT package, and is available in an adjustable version and fixed output voltage of 1.2V, 1.5V and 1.8V
上傳時間： 2017-02-23
上傳用戶：w124141
被稱為路徑規劃圣經，詳細介紹了整個算法，有助于入門
標簽： 路徑規劃書籍
上傳時間： 2017-10-19
上傳用戶：xyodfish
obot control, a subject aimed at making robots behave as desired, has been extensively developed for more than two decades. Among many books being published on this subject, a common feature is to treat a robot as a single system that is to be controlled by a variety of control algorithms depending on different scenarios and control objectives. However, when a robot becomes more complex and its degrees of freedom of motion increase substantially, the needed control computation can easily go beyond the scope a modern computer can handle within a pre-specified sampling period. A solution is to base the control on subsystem dynamics.
標簽： decomposition virtual control
上傳時間： 2019-09-04
上傳用戶：txb96
A decade ago, I first wrote that people moved, and networks needed to adapt to the reality that people worked on the go. Of course, in those days, wireless LANs came with a trade-off. Yes, you could use them while moving, but you had to trade a great deal of throughput to get the mobility. Although it was possible to get bits anywhere, even while in motion, those bits came slower. As one of the network engineers I worked with put it, “We’ve installed switched gigabit Ethernet everywhere on campus, so I don’t understand why you’d want to go back to what is a 25-megabit hub.” He un- derestimated the allure of working on the go.
上傳時間： 2020-05-26
上傳用戶：shancjb
By definition, the term “mobile-radio communications” describes any radio communication link between two terminals of which one or both are in motion or halted at unspecified locations and of which one may actually be a fixed terminal such as a base station. This definition applies to both mobile-to-mobile and mobile-to-fixed radio communica- tion links. The mobile-to-mobile link could in fact consist of a mobile- to-fixed-to-mobile radio communication link.The term “mobile” applies to land vehicles, ships at sea, aircraft, and communications satellites. In tactical situations, mobile-radio systems may include any or all of these types of mobile terminals.
標簽： Communications Engineering Mobile
上傳時間： 2020-05-30
上傳用戶：shancjb
This paper presents a Hidden Markov Model (HMM)-based speech enhancement method, aiming at reducing non-stationary noise from speech signals. The system is based on the assumption that the speech and the noise are additive and uncorrelated. Cepstral features are used to extract statistical information from both the speech and the noise. A-priori statistical information is collected from long training sequences into ergodic hidden Markov models. Given the ergodic models for the speech and the noise, a compensated speech-noise model is created by means of parallel model combination, using a log-normal approximation. During the compensation, the mean of every mixture in the speech and noise model is stored. The stored means are then used in the enhancement process to create the most likely speech and noise power spectral distributions using the forward algorithm combined with mixture probability. The distributions are used to generate a Wiener filter for every observation. The paper includes a performance evaluation of the speech enhancer for stationary as well as non-stationary noise environment.
標簽： Telecommunications Processing Signal for
上傳時間： 2020-06-01
上傳用戶：shancjb
Control systems are used to regulate an enormous variety of machines, products, and processes. They control quantities such as motion, temperature, heat flow, fluid flow, fluid pressure, tension, voltage, and current. Most concepts in control theory are based on having sensors to measure the quantity under control. In fact, control theory is often taught assuming the availability of near-perfect feedback signals. Unfortunately, such an assumption is often invalid. Physical sensors have shortcomings that can degrade a control system.
標簽： Observers Control Systems in
上傳時間： 2020-06-10
上傳用戶：shancjb
