The camera trigger

Similar Questions

• How to trigger the camera and light pulsed with PCIe-1427

  Hello

  We recently bought an acquisition card NI PCIe-1024 and the NI Vision Builder.

  I am new to imaging applications and need support to get started.

  Application:

  We have a camera viewing a scene which is illuminated by a pulsed light source (e.g., a strobe).

  We want to use the PCIe-1427 as the master for the outbreak of the camera and strobe light.

  The first trigger (Ch 0) transmitting signals TTL to camera to 30 Hz (30 fps).

  The second trigger (Ch 1) send bursts of pulses to the strobe light to e.g. 10 kHz. This trigger must only send impulses all other images, so that we can save alternating light and dark images in order to perform background subtraction.

  I tried to set up the channels of the trigger and create virtual channels in the measurement and Applications Explorer, but apparently this is not possible.

  Since it is an application critical time, I'd appreciate an example vi that sets up the channels two trigger and download managers in the camera to get started on this application. Thank you.

  Software of NEITHER: LabVIEW version 10

  Materials: Device for the Acquisition of Image (IMAQ) PCIe-1427 driver Version: NOR-IMAQ 4.4 OS: Windows 7

  Thank you, Justin.

  I'll copy this request to the machine Vision Group as you suggested. I looked at the link sent you me and made progress (limited). I can see on an oscilloscope trigger signals, and the camera acquires images. However, I only managed to do work for pulse trains continuous, not a shots or bursts of pulses.

  No need to answer that. Thanks for your help.

  Peter

• Integrate the external trigger into camera (PCI-1424)

  Hi all

  I use a PCI 1424 acquisition card to take the image of a Kodak "camera".

  Currently, I put the camera on a continuous mode - in which the camera give me frames one after one. I am able to 'snap' or 'capture' images of MAX with the help of the camera file. I can write a simple VI for 'break' a single image in LabVIEW.

  Now, I want to go to the single camera viewing mode. In this mode, the unit will display a single image to a trigger signal (the rising edge of a singal TTL).

  I wrote a short program for parallel port allows to send this signal triggered at the camera. The increase in power to the camera temporialy, I know that the camera captures an image.

  However, the question is how can I nathalie caron this image?

  What I do now, is to select 'snap' a picture to the MAX and allow a delay of 10 sec. After you click on the snap, I'll go to LabVIEW and send the trigger signal to the camera.

  However, in MAX, I altenativley had a black and white image that is of the Court a false image.

  does anyone know the reason?

  and how do I integrate the VI trigger in the captuire VI image, so that I can finish the task of single capture inside a VI?

  There is a sample VI "Grab.vi triggered" in which user can set waiting time and other properties for IMAQ1394, but I do not know how to PCI1424

  Thank you very much.

  Dear John,

  I have attached this VI.

  LabVIEW 7.1

  Framegrabber: PCI 1424

  Trigger the camera: after set us the camera in mode single shot (by rider material), I just need to send a signal of TTL and the camera will trigger in the front of this signal. So I schedule a pulse to the OID 0 pins at this TTL signal output.

• Canon RC-6 wireless trigger will work with Canon ST-E3-RT transmitter to the camera?

  I'm trying to know if the Canon RC-6 trigger Wireless will work with a Canon ST-E3-RT mounted on the camera.

  The ST - E3 = RT works very well to the camera, but I prefer not to buy RE-6 without knowing that it will work.

  Appreciate any input.

  Jerry

  Bob,

  Thanks for the reply.  If I remember correctly, for the IR, the remote control must be used in front of the camera, opposes

  Radio FREQ.

  Thanks again,

  Jerry

• Executives ignored in the acquisition of images with 4 Configuration of the camera (cards 2 x 1430), record only half of the expected data

  Hi all

  I have a VI that puts in place a continuous grab for four camera link cameras at 100 Hz (512 x 640).  I have the cameras running on an external clock of 100 Hz for synchronization (comes from box NI DAQ, trigger ports on 1430 cards are not connected to anything).  The VI sticks all the frames in a queue, and then I (slowly) he writes to disk after that I get what I want.

  The problem is, for a minute 4 capture, I get only about 14 000 items in the queue instead of 24 000.  Also, each image gets populated with a number of buffer, so I can see it is missing all the other images or something like that, sometimes it will jump 10 in a row, sometimes it will jump rare... any ideas?

  Here is a picture of my installation of collection (Scripture on the part of the disk is not displayed, but that pours out of the queue is fine)-

  

  Hello

  I see a number of problems with the approach in your VI that I'll try to cover...

  Your consumption with queues and images won't work as you wrote because the images are a type of reference data and so put them in the queues is not copy data values, only the references. So if you keep to the same reference to the image in a queue, they are all pointing to the same data of the image (which may be substituted).

  A better approach is to have two queues of images, representing the 'free' pads and then one that represents the images 'full' (your queue current consumer). You would then have your acquisition loop pull a 'free' image, fill it with data via a Get buffer call and then queue it for your use. Your consumer could pull this queue, do its thing and then queue the image to the queue 'free' for the producer to use again.

  In addition, your code does not currently use the lower level is VI buffer, so you take advantage of the buffering model input-output IMAQ uses internally. The simple Grab acquire VI returns only the most recent image, but if you fall at all it does not use the FIFO. You want to call make buffer with a buffer incremeenting number so that you do not skip the buffers and are allowed to get behind up to the number of buffers in the buffers configured list.

  Eric

• Evanescent synchronization using the TTL trigger

  Hi all

  I work with the NI DAQ (PCIe 6363) set and uses a waveform as outputs analog to control a scanning unit.

  Now I want this output to synchronize with the rising edge of an external TTL signal (the * fire * out of a camera).

  To do this, I used [Cont Gen tension Wfm - Int Clk - analog Start] - model with minor changes (see attachment with a few comments included). In fact, it works, but only if the output signal is long finished when arrives the next TTL climbing aboard. What I want is a rising edge trigger that happens, say, 100 Hz, and a waveform near 10 ms-long that starts with this trigger. So far, I have to operate with a approx. 8 ms wavelength. It seems to me that the loop in Labview (see attachment) software takes the rest of the time. If I increase the wavelength to 9 ms or more, the loop is too slow and little miss the next rising edge trigger.

  Unfortunately, I can't use [continuous sampling] that there is too much instability in the external trigger.

  Is it possible to optimize this problem? For example, is it possible to tell la carte DAQ 'turn off this waveform whenever you receive the trigger"instead of"put on this waveform when you receive the trigger, then shut up? " Or is it possible to run two while loops in parallel that alternately hold the trigger signal and both use the same output channel? There is another, simpler solution?

  Thanks for the pointers,

  Peter

  You must use the property start.retriggerable, something like this:

  

  Best regards

• sync the camera with outputs daq

  Hello

  I am a newbie of LV, your patience is appreciated

  I work with a gigabit Prosilica GE 680 camera connected to my computer via Intel PRO 1000 G/T and I also work with a M NI USB 6212 BNC series. Connected to the nor-daq is a source of light on each of the AnalogOut0 and AnalogOut1, as well as 3 analog: read analog two of the three outputs, the other entrance is a signal of the camera by saying that it is imaging or not.

  I was debugging the code from someone who is no longer around to help. The code basically allows the user to synchronize two things: 1) capture and recording of a number of specified length avi, which in my hands, is typically movies of 2 sec to 200 images per second AND 2) to turn off the two sources of light at times during the movie and specified. The problem is in the precise timing of the light sources with the camera exposure period.

  From now the lights turn on and off in my movies, which is good. The problem is that the camera lights late compared to the signal of departure as evidenced by the output signal "imaging" sent by the camera in one of the analog inputs. The result is that the lights seem to lights at the beginning of the avi saved since the movie begins later that it is specified. It's not ideal.

  What changes should I make to the labview code to make sure that the camera is precisely synchronized with the analog?

  Thanks and let me know what information you need from me.

  -Alex

  Hello again,

  I solved the problem. It was a hardware problem. Using SyncOut2 instead of SyncOut1 on my camera Prosilica 680 GE gave me the schedule that I specify. No major code changes was necessary, other than changes to support the change of equipment.

  The question remains as to why works SyncOut2 and SyncOut1 does not. After consulting the technical manual for the camera, I realized that the use of SyncOut1 requires that I use the ground isolated on 12 IO pins my camera. Although I am a novice to the electronics, it seems to me that this would require a line that goes from the isolated ground my mass of the external circuit DAQ. I didn't get it, even if I did when I tried SyncOut2. This missing connection can have an impact on power SyncOut1 send a trigger to the acquisition of data.

  I understood what the analog input wavegraphs look like now that the timing is good.

  Despite the outstanding issues I will mark this as resolved issue.

• I am a new user of Acer Iconia B1 and I'm unable to use the camera, can anyone help

  It seems that I can't see myself on the screen, I would be grateful for any advice, thanks

  Angie wrote:

  Thank you very much for your reply, could you tell me how to take a picture of all the rest, I am grateful for your help, Marilee

  There is no easy way because you need to trigger the image while the Tablet is back on you, unless you want to Selfies of course!

  The other issue is because the device is designed for type uses Skype it focuses quite close. This means that he will not good for sunsets and other.

  You can see what you can do with a mirror that was held to see the screen while pointing the camera on something...

• The camera on my iPhone 6s is suddenly in a folder

  MY camera has moved into a folder called photography and I can't remove it.

  Tap and hold the icon and when your apps start jiggling, press on and drag the camera out of the folder app and move it where you want.

• Anyone know how to solve my problem? I can't import my photos from Iphone to computer. Sign says: Photos in the camera cannot be imported because the IPhone is locked with a password or read. My phone is unlocked. I've tried everything

  Anyone know how to solve my problem? I can't import my photos from Iphone to computer. Sign says: Photos in the camera cannot be imported because the IPhone is locked with a password or read. My phone is unlocked. I tried everything, every single idea. Without success! Any other idea?

  For example, you specify that the device does not display the lock screen, correct? Do you use Touch IDS? If so, try to put your finger on the device to see if it's what he wants.

  See you soon,.

  GB

• iPhone 7 more sudden that it recharges when you use the camera

  My iPhone more brand-new 7A they weird sudden reboots when I start the camera application. I hear the camera application, point, shoot the picture and everything becomes black and the phone made a quick restart. This means that it takes only about 3 or 4 seconds for the phone to come back alive and operational (I have to return my password instead of use the fingerprint).

  This happens too often, but not always. It can happen at the launch of the application of the camera itself or when you try to use the camera via Whatsapp or Facebook Messenger for example.

  Is this a known bug or should I consider taking the phone...

  You can try to reset your device. Press and hold On / Off and the Volume key down until you see the Apple logo.

• Send to compressor: how to choose the camera

  Hello

  I apologize if this is a really stupid question, I'm quite new to Motion 5.

  If I am not mistaken, with send to compressor, using the multi-passages option, and other compressor optimized parameters will result in the export of better quality, if this is true, it's the method that I would use for my final exports.  (If I'm wrong, please correct me and let me know which will give the best final ProRes 4444 60 fps 1080 p export - I then import them using FCPX and do a little cut etc, then exporting to h.264 final 60 fps 1080 p).

  Anyway, to my question, how choose them which camera I want to export?

  I choose 'Export using compressor settings,' and then I give myself the opportunity to choose which camera, but I no longer like the options of compressor, where I can choose to use multi-pass and all other settings.

  I tried selecting the camera that I want to export, and then "Send to compressor", but that does not work, it does not use the camera, I chose.  I have a total of eight cameras, so to choose which device I export is quite important for this odd project.

  The answer could be made obvious, once again, I apologize if this is a really stupid question.

  Thanks in advance for any thoughts.

  (Motion 5, compressor 4, El Capitan)

  If you use 'Export using compressor settings' this essentially load presets created in compressor without going into the application, so it has minimal options for adjustment.  What you want to do, you should be able to create a preset in compressor with the settings you need.  Then moving when you use "Compressor to help export settings" select your preset and in the Render tab, there is the section of 3D rendering, you can select the camera you want to copy.  By default, it should be 'Active Caméra', but you can select your other cameras as well.

• iPhone 5: objective of the camera does not work after update iOS 10

  Hello everyone.

  I swear to you that I have no idea how do... after a few weeks since the release of iOS 10, yesterday I force myself to be updated - the situation with iOS 9.3.2 became crash and unbearable lag every second. The fact is that I update, I like the system and use it for a few hours. Check the camera this morning, I see that the focus does not work. Now I also see AE / AF Lock, light changes whenever I tap on one side or the other, but not to focus. Not even close or far, nothing to do. I have not tried in the settings to do a full erase, I had no way to restore it since I do not have a backup.

  I tried to clean the lens - already cleaned, I tried to give him a few small nicks and follow the many guides online. I rebooted and everything done. Nothing has changed.

  The last photo was taken last night and has been developed. So I don't think it's a hardware problem and if so, how has it happened? A few hours ago the iPhone is fallen, but tell me if it makes sense. If it's a software problem, what could I do?

  I would avoid the assistance. It is a used iPhone, never jailbroken. I don't have a lot of confidence with the help, in 6 or 7 years he never went - iPhone always bought used and always worked very well.

  PS: I have no way to get into DFU, as iTunes does not see my iPhone. Up to iOS 9 that I had no problem even if I had enough of the device with the cable isn't original, but barely now lets load ("This accessory may not work").

  Hello

  I also have an iPhone 5 and I tested the question and mine is fine, how bad was the fall that you mentioned? Sometimes problems can come and go. Also try to reformulate your device.

  After this answer please.

  Thank you Will

• Since the installation of the latest IOS i.e. IOS 10.0.1 and 10.0.2, my phone is very slow, especially the contacts do not appear in the search and the camera hangs on startup. the battery is also used faster then the previous version.

  Since the installation of the latest IOS i.e. IOS 10.0.1 and 10.0.2, my phone is very slow, especially the contacts do not appear in the search and the camera hangs on startup. the battery is also faster, then the previous version, use 6s with 64 GB

  Hello naqvi65,

  I see that you have several problems with your iPhone after updating to the latest version of iOS. These issues include problems of performance, inability to find contacts at a Spotlight search, problems with enforcement camera freeze after the launch and the battery discharge more quickly than what you are accustomed. I want to help you find a solution for these questions!

  To answer your questions with performance and your inability to find contacts, we will try to restart your iPhone first to see if the problems persist. Take a look at this resource for more information:

  Restart your iPhone, iPad or iPod touch - Apple Support

  Take a look at this Web site using your photo app troubleshooting:
  Get help with the camera on your iPhone, iPad or iPod touch - Apple Support

  To keep an eye on your battery use, take a look at the information here:
  On the use of the battery on your iPhone, iPad and iPod touch - Apple Support

  To help maximize your battery performance, this site has some good tips for iOS devices:
  Batteries - maximize Performance - Apple

  See you soon!

• How can I fix black spots on the camera in 9.3.5 iOS?

  How can I fix black spots on the camera in my iPhone 6 Plus? Please help me.

  You see the same locations if you take a picture out in the open?

  It's more like flares of the lens, because of the light coming from one side of the room and hit the lens at an angle. If so, it is an optical phenomenon and cannot be resolved.