how to calibrate smartboard

Simply play the next OpenCV inside the Aruco, with the mobile phone camera, mobile phone installed an IP camera , so that the video can be uploaded to the computer.First is the calibration, I did not print chessboard, directly on the computer screen display, took 17, probably as follows:And put a ruler and the like on the mobile phone app, the volume of the next, each lattice is probably 18.1 mm, the chessboard is the board of X 7.To pip install Opencv-contrib-python, there is an extension modul

pin uses a set of commands to automatically check the end resistance of the data output driver and the ODT through the on-chip calibration engine. When this instruction is issued by the system, will use the corresponding clock cycle, after the power and initialization of 512 clock cycles, after exiting from the refresh operation with 256 cycles, in other cases with 64 cycles, to the resistance and odt resistance to calibrate. The voltag

, then the paper itself will be heated and blackened, as shown in Figure 2-2. Usually the newly purchased printer will be accompanied by the "Installation Guide" instructions, as shown in Figure 2-3, the above steps will be the supplies (label paper and ribbon) installed in place, pay attention to the carbon belt installation path is consistent with the instructions, the detector is aligned with the corresponding supplies, so that the subsequent successful calibration.

Organic Motion's Openstage 2 is the most cost-effective in the market, using the simplest professional motion capture system. It provides the maximum amount of animation with accurate motion capture data in the shortest time. Due to the unique advanced computer vision technology of organic motion, Openstage 2 is the only professional system in the market that can send unmarked accurate tracking. No marking means no adjustment, which means the animator can get more information in a shorter time.

export Gst_plugin_path=/usr/lib/fsl_mm_linux/lib/gstreamer-0.10Export Tslib_root=/usr/local/tslib-Install export Tslib_tsdevice=/dev/input/event1 Export Tslib_calibfile=/etc/pointercal Export Tslib_conffile= $TSLIB _root/etc/ts.conf Export Tslib_plugindir= $TSLIB _root/lib/TS Export Tslib_fbdevice=/dev/fb0 Export PATH=/usr/local/tslib-Install: $PATH export Ld_library_path=/usr/local/trolltech/qtembedded-4.8.5-arm/Lib Export qt_qws_fontdir=/usr/local/trolltech/qtembedded-4.8.5-arm/lib/Fonts Expo

actual height of the label, and then set the label correctly. Graphic Software Settings In the bartender software, when you finish setting up the label, if you find that the page is larger in print preview (Figure 3), this indicates that the page Setup may be incorrect or not valid. To check the page setup in the software or to replace the printer driver, the following table lists the best printer drivers for each software (table 1). Figure 3-Print preview page Four,

Monitor is an important part of the computer, color quality directly affects the user's visual enjoyment, so many users like to use Third-party software to calibrate the display color, make it more beautiful. If you are a Win7 system user, then the small series can tell you, Win7 itself with the display color calibration tool, and very simple to use. 1. Right-Win7 system under the desktop, in the pop-up right-click menu to select Screen resolution op

Because the Apple handset cannot install the Baidu handset Guardian, therefore the present Small edition demonstration tutorial only can use in the Android system handset, specifically as follows. 1. Baidu Mobile Guardian, select "Flow Monitoring" click it open into 2. Then you will see that there is a "save and calibrate" and we click on it to open 3. Baidu mobile phone Guards will send a text message to the operator 4. Then according to the

to do it for me automatically. But I was greatly shocked by the CS3 of this feature. This feature is also available here in the automatic layer calibration and blending that I am going to mention, while the new layer calibration features in CS3 are widely available and can be used in applications in different domains. This is indeed a revolutionary thing in this new version. The difficult tasks of the past in making Panorama are now automatically completed. These are the most troublesome thing

automatically. But I was greatly shocked by the CS3 of this feature. This feature is also available here in the automatic layer calibration and blending that I am going to mention, while the new layer calibration features in CS3 are widely available and can be used in applications in different domains. This is indeed a revolutionary thing in this new version. The difficult tasks of the past in making Panorama are now automatically completed. These are the most troublesome things, you have to ha

"Time Protection assistant" can protect the system time, the system time is maliciously tampered with, can automatically sync to the right time, of course, can also manually calibrate the system time. Run Jinshan Poison PA, open the "Safe visionary" window, click the Time Protection Assistant button, pop-up "Kingsoft Poison Time Protection Assistant" window, the window shows "Internet Time" and "local time", if the time is not consistent, click the

This hone version of XP is Simplified Chinese version without any patches, really real original mirror image, their own "Tetraena" number of the number installed directlyActivation on it, and Pro version of the original ISO, activated directly after the patch, online update patch is no problem, please feel free to download!!In order to facilitate their own number of downloads after the activation, I have put the calculation number in the download connection, I wish you the number of successful a

How does the Mac turn on night Shift? The blue light emitted in the display affects the production of melatonin, a hormone secreted by the brain, which acts as a body to sleep. To reduce the impact of Blu-ray on the user, Apple has added a new night shift function in the iOS9.3 system, which is able to prevent Blu-ray from affecting users ' sleep by adjusting the color temperature of the display screen. Currently, the Night shift feature only supports 64-bit chip devices, and iOS device

The blue light emitted in the display will affect the production of melatonin, a hormone secreted by the brain that acts as a body to sleep. To reduce the impact of Blu-ray on the user, Apple has added a new night shift function in the iOS9.3 system, which is able to prevent Blu-ray from affecting users ' sleep by adjusting the color temperature of the display screen. Currently, the Night shift feature only supports 64-bit chip devices, and iOS device systems are upgraded to 9.3 versions

questions need to be understood clearly. 2. Logic design Phase A, I think in the logic design phase, should be prohibited to talk about performance issues, should aim at the conceptual model. As a general recommendation, designers should try to standardize as high a level as possible. If a performance problem is found in the system test, the system can be normalized in reverse. But we should never abandon the normalized structure in order to adjust the performance of the application. So, adv

that require time obtain UTC time information from a specified time server (such as the HJ210 NTP Network time server) by installing an NTP client program to calibrate their current time information. The NTP protocol in the Internet in 1998 has more than 230 first-time servers (NTP) synchronized through wireless, satellite and modem, and far more than 100,000 secondary servers and clients. In addition, there are thousands of private networks in gove

When developing embedded applications on resistive touch screens, the combination of qt+tslib is common and is a classic combination. The Tslib library provides a number of test programs, such as Ts_calibrate,ts_test, that can be used to calibrate and test the touchscreen. A routine is also provided in Qt, which is also used for touch-screen calibration (http://doc.qt.io/qt-4.8/qt-qws-mousecalibration-calibration-cpp.html), QT Library of the touch scr

manner.The critical section contains two operational primitives:EnterCriticalSection () Enter critical sectionLeaveCriticalSection () out of critical zoneAfter the EnterCriticalSection () statement executes, the code will enter the critical section, and no matter what happens, you must ensure that the matching leavecriticalsection () can be executed. Otherwise, the shared resources protected by the critical section will never be freed. Although critical areas are synchronized quickly, they can

of the picture. 41> to implement multiple windows connections? Panel design has been a major feature of DW, to the DW4 version, the use of the Panel has been quite a lot, then how can we use it more efficiently? "Window Connection" is a convenient way to customize the technical features, in short, you can put two or more panels in a window as needed. Click the mouse to drag a panel tab to 21 panels, when you see a black border, release the mouse, then two panels have been one, operation as show

preempt and thus achieve the purpose of operating the shared resource in an atomic manner.The critical section contains two operational primitives:EnterCriticalSection () Enter critical sectionLeaveCriticalSection () out of critical zoneAfter the EnterCriticalSection () statement executes, the code will enter the critical section, and no matter what happens, you must ensure that the matching leavecriticalsection () can be executed. Otherwise, the shared resources protected by the critical secti