I am using Tk1 with IDS camera (Model Number: UI5241LE-M) with CAT 6 ethernet cable to capture frames at 50 fps with 1280x1024. And it is giving a lot of frame drops. I am not exactly getting why it is not able to capture frames at 50 fps ? Any idea about it ? I was expecting that tk1 will work without any issue.
Thanks
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It would be great if someone can help me. I was using the two external monitors plugged into ThinkPad-T14s-Gen-1 that has installed only Ubuntu 20.04, the laptop has AMD Ryzen 7 pro 4750u with AMD integrated graphics. One monitor was plugged into HDMI and other one into USB C socket, the laptop has two USB C sockets, one can be used both for charging and display, other one only for data. Everything was working fine but, both of monitors were detected but after some updates, after I did some updates(apt get update and upgrade) from 20.04 to 20.04.1 and 20.04.02, one day it suddenly is not detecting the one monitor plugged into USB C socket, its not even working after unplugging and plugging it back in(before it would work if I unplug and plug it back) The cable USB is good, its new and I have bought another one USB to check but they both dont work so its not about cables, it must be software issue. However I suspect the reason why the monitor stopped responding is because once I had accidentally clicked suspend option when I wanted to shutdown the pc. When I logged back in one monitor was not detected anymore. I am sharing my output of xrandr on terminal, btw I am absolute beginner to Linux. I have unplugged the monitor from HDMI, since its working but I plugged in the other one into USB C but its not detecting, its only detecting the laptop display(eDP):
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384 eDP connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 309mm x 173mm 1920x1080 60.00*+ 1680x1050 60.00
1280x1024 60.00
1440x900 60.00
1280x800 60.00
1280x720 60.00
1024x768 60.00
800x600 60.00
640x480 60.00
HDMI-A-0 disconnected (normal left inverted right x axis y axis) DisplayPort-0 disconnected (normal left inverted right x axis y axis) DisplayPort-1 disconnected (normal left inverted right x axis y axis)
I'm using external usb camera plugged to my raspberry 3b+. Since I'm not using raspicam, but the uvc driver I can't just set the framerate in config file like when you are using raspicam.
Is there a way to set it somwhere?
v4l2-ctl --set-parm=30
seems like it should change the fps, you also need to specify the device with
--device=
With
set-fmt-video=width=1024, height=640
you can change the resolution. The changes however seem to not affect the video though. Fps seem to have no effect at all, so the mjpeg stream stutters alot, and WebRTC works great even though it's set to 5 for example. Changing the resolution only seems to upscale the image with 0 quality improvement.
At a company I work for we're developing a 3D Reconstruction app that can be downloaded to common Android devices. In order for the reconstructions to work the best, we need to input the devices' camera sensor size (specifically the CCD width). Through the app's Play Store administration page we've seen several users using something called "Google ATAP Project Tanto Tablet (Yellowstone)". Can anyone help us know what sensor size does that tablet has? This would improve the reconstructions made on that device.
Thanks in advance!
As far as I understand, Tango Yellowstone tablet uses a combined RGB and IR camera from OmniVision, OV4682 RGB IR. You can find more specifications here:
http://www.ovt.com/products/sensor.php?id=145
I am using SDK 2.3 and develop an Android application with AS-15 and 20 camera that is exclusively dealing with liveview.
I unable to obtain from Liveview a higher resolution than 640x360px, while the camera specs mention a 1920×1080/30P (HQ).
How can I get the full resolution?
Is this a limitation of the API ? Why?
I've found that some (other) cameras implement get/setLiveviewSize and with the L it says
XGA size scale (the size varies depending on the camera models, and some camera models change the liveview quality instead of making the size larger.)
What are the models with the highest liveview resolution?
I have developed a game for iPhone using coco2d 0.99.3. I want it to work on iPad. I have the new images which are bigger in size and resolution than iPhone images.
Every thing is fine, but I got the fps problem. In iphone simulator I used to get 50 - 60 fps and even in iPhone device I used to get 50 above fps.
But, in ipad simulator the fps is very low, it is below 10fps. I could not understand where is the problem. What should I do to raise the fps ?
Thank You.
this is a common phenomenon among other developers (including myself)
BUT it's nothing to worry about; fps on the real iPad are much higher than the simulator. However, this only seems to happen with large images, so I don't add them till the very end of the development process. You can get reasonable results by doing so.
hope this helps