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Optimal Method for precise measurement of WiMAX channel power (1)

oscillator are implemented using digital signal processing, their features and behaviors are the same as the results of simulated processing. Therefore, to perform precise measurement, the designer must correctly set and modify the measurement parameters. Figure 1 Diagram of traditional analog spectrum analyzer Display Detector Figure 1 contains an envelope detector and a display

Rapid Object Detection using a Boosted Cascade of simple Features partial translation

Rapid objectdetection using a Boosted Cascade of simple Features fast target detection using the easy feature cascade classifierNote: Some translations are not allowed in a red fontTranslation, Tony,[email protected]Summary:This paper introduces a vision application of machine learning in target detection, which can process images quickly and achieve a higher recognition rate. The success of this work is due to the existence of the following three key features: The first introduces a new kind of

Windows shell programming 1 (concept)

The operating system shell is defined as a user interface provided by the system. It allows users to execute public tasks, such as accessing the file system, exporting execution programs, and changing system settings. Ms-dos has a command.com role. However, Windows has a graphical interface environment, and its shell program must be graphical. Before Windows 95, the default Windows Shell is the program manager. The program manager is a central console where you can start applications, rearrange

How Java Gets the file encoding format

] = = -69 b[2] = = -65) + ": Encoded as UTF-8"); Else + ": May be GBK, or it may be another code");2: If you want to achieve more complex file encoding detection, you can use an open source project Cpdetector, where the URL is: http://cpdetector.sourceforge.net/. Its class library is small, only about 500K, Cpdetector is based on the principle of statistics, is not guaranteed to be completely correct, using the class library to determine the text file code

Principle of Vector Network analyzer

, diode detection to extract the RF signal input envelope level, the output voltage reflects the input signal power. If the input signal is a continuous CW signal, the DC detector, if the input is a amplitude modulated signal, for AC detection. The diode detector only reflects the signal amplitude information and loses the phase information of the RF carrier signal.Method 2: Tune the receiver. The tuned rec

Test on common faults of electrostatic induction Cables

Electrostatic inductionPerimeter detectors are very sensitive sensors. To ensure proper use of the system and give full play to its functions, the project installer must carefully read the product instructions before construction, check the cables, ground wires, power cables, and installation according to the product instructions carefully before determining the fault. Then, the test starts after 5 minutes of power-on: Electrostatic sensor perimeter detector

An analysis of the scale invariance in Object Detection–snip paper interpretation

Domain-shift. In the final analysis, the object detection is not good at present, or because there are a large number of very small objects exist itself, and small objects detection is difficult because: Small objects because small, the internal scale difference is very large (multiples, because the denominator is very small, one will be very large), the detector needs a strong scale-invariance ability, and CNN on its design itself i

How phase-locked loops work

acquisition can be carried out strictly at the same time. PLL is a phase feedback automatic control system. It consists of the following three basic components: Phase detector (PD), Loop Filter (LPF), and voltage controlled oscillator (VCO).How phase-locked loops work:1. The output of the voltage-controlled oscillator is collected and divided;2. And the reference signal simultaneously input phase detector;

Android Development Viewpager Picture preview picture zooming in zoom, move, toggle Tutorial

ability to support finger touch scaling for custom controls: (Support for finger touch amplification) Because it involves gestures to touch events, we want to implement the onscalegesturelistener,ontouchlistener of these two interfaces. Declaring a member variable: Private Scalegesturedetector mscalegesturedetector;//captures the proportion of user-controlled touch scaling To initialize in a constructor: Mscalegesturedetector = new Scalegesturedetector (context, this);Setontouchlistener (th

Learning about opencv -- hog. detectmultiscale

later. This result has been bothering me, and I don't know whether it is not trained or the function is wrong ~ % >_ Today, I suddenly understood the problem: The SVM classifier of XML that I train, that is,OutputOnly 1 and 0 (corresponding output result !!!), Only the public logo can be predicted, but the target cannot be detected because it is not a detector. In fact, this is just a vague understanding. I hope to give some guidance to you ~~~ Comm

Talk about Focal loss and its reverse propagation _focal

Focal loss:focal Loss for dense Object detection paper link: https://arxiv.org/abs/1708.02002 As we all know, the current target detection (objece detection) algorithm is mainly divided into two main categories: Two-stage detector and One-stage detector. Two-stage detector mainly includes rcnn, FAST-RCNN, faster-rcnn and RFCN, one-stage

Use kprobes to debug the kernel (zz)

inserts a detector. Executing the tested command may cause a breakpoint error. Kprobes hooks the (hook in) breakpoint processor and collects debugging information. Kprobes can even run the probe command in one step. Install To install kprobes, You need to download the latest patch from the kprobes homepage (see the link in references ). The name of the packaged file is similar to the kprobes-2.6.8-rc1.tar.gz. Release the patch and install it on the L

Get the file character set with Jchardet

StaticNsdetector Detector; Private StaticNsicharsetdetectionobserver Observer; /*** Adaptive Language enumeration *@authorRobin **/ enumlanguage{Japanese (1), Chinese (2), SimplifiedChinese (3), TraditionalChinese (4), Korean (5), Dontknow (6); Private inthint; Language (inthint) { This. hint =hint; } Public intGethint () {return This. Hint; } } /*** Pass in a file object, check the file encoding * *@paramfil

Inline Cascade classifier

Inline cascade classifier nested CASCADE detector detector AdaBoost Real AdaBoost Read "C. Huang, H. Ai, B. Wu, and S. Lao, ' boosting Nested Cascade Detector for Multi-View face Detection ', ICPR, 2004,vol ii:4 15-418 "notes Main contribution points of thesis This paper presents a weak classifier based on Haar feature lookup table, and uses

Faster r-cnn:towards Real-time Object Detection with regions proposal Networks (faster RCNN: real-time via regional proposal network)

region-based target detection [7, 16] and semantic segmentation [2]. Fast R-cnn[5] Implements an end-to-end detector trained on shared convolution features, showing amazing accuracy and speed.3. Regional recommendations NetworkThe Region recommendation Network (RPN) takes an image (any size) as input, outputting a collection of rectangle target suggestion boxes with a objectness score for each box. We use the full convolutional network [14] to build

Java Memory leakage

=" window. open ('HTTP: // java.chinaitlab.com/UploadFiles_8734/200604/20060427093816464.gif'); "> Figure 1. The JRockit Management Console The management console can even be configured to send emails to you when the heap usage is faulty (or other events occur. This clearly makes it easier to monitor memory leakage. Memory leak detection tool There are many dedicated memory leak detection tools. Among them, The JRockit Memory Leak Detector can be

How to use Java code to obtain the encoding method of a file, file stream, or string

How to use Java code to obtain the encoding method of a file, file stream, or string Today, I learned how to use Java code to obtain the encoding method of files, file streams, or strings through network resources. I will share the Code with you: Package com. ghj. packageoftool; import info. monitorenter. cpdetector. io. ASCIIDetector; import info. monitorenter. cpdetector. io. byteOrderMarkDetector; import info. monitorenter. cpdetector. io. codepageDetectorProxy; import info. monitorenter. cp

Opencv 2.0 beta (v1.2) released

more or less stable version can be foundHttp://opencvlibrary.svn.sourceforge.net/svnroot/opencvlibrary/tags/latest_tested_snapshot-Cxcore, CV, cvaux:* Cxcore now uses LAPACK (clapack 3.1.1.1 in opencv 2.0) in its varous linear algebra Functions(Such as solve, invert, SVD, determinant, Eigen etc.) and the corresponding old-style functions(Cvsolve, cvinvert etc .)* Lots of new feature and object detectors and descriptors have been added(There is no documentation on them yet), see cv. HPP and cvau

TLD Target Tracking Algorithm learning (c) Code understanding

Transferred from: http://blog.csdn.net/zouxy09/article/details/7893026 From the main () function, analyze the entire TLD operation as follows:8 stages(This is just an analysis of the work process, all the annotated Code see blog update)1, the analysis program runs the command line parameter;./run_tld-p. /parameters.yml-s. /datasets/06_car/car.mpg-b. /datasets/06_car/init.txt–r 2, read into the initialization parameters (variables in the program) file parameters.yml; 3, through the file or the us

Paper notes-person re-identification past, Present and future

then Re-identification. At present, most Re-id work assumes two points: 1) Given the gallery of pedestrian boundary. 2) Border Converse Hand-drawn. This will have a very good detection accuracy. In practice, however, these two assumptions are not tenable. On the one hand, gallery size will change with detector threshold. Low thresholds generate more bounding boxing (larger gallery, higher recall, but lower precision), and vice versa. The accuracy of

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