@izaak In fact, in the Video streaming mode, it is impossible to achieve an exposure time of 1 second. I conducted a test in the 2 - lane raw8 format, as follows:

pi@raspberrypi:~/mvcamera/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -w fps 0.01 w fps 0.01 pi@raspberrypi:~/mvcamera/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -r fps r fps is 3.48 fps pi@raspberrypi:~/mvcamera/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -w metime 1000000 w manual exp time is 1000000 us pi@raspberrypi:~/mvcamera/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -r exptime r current exptime is 287129 us

It can be achieved in Pulse Trigger Mode. However, due to the excessive accumulated dark current, the signal noise will be very high. I don't think it has practical value.

@veye_xumm 好的，感谢

@egor Sorry, I think the accurate way to do this now is still through an external sensor like a photocell.

@etherealhorizon
使用mv_mipi_i2c.sh脚本，只是直接写入了摄像头寄存器，配置了摄像头的数据格式，但是v4l2驱动中并未得到通知。建议你采用v4l2-ctl配置相机关于相机分辨率，帧率，数据格式的参数。
比如用下面这个脚本测测看。

export WIDTH=704 export HEIGHT=544 export FPS=319 v4l2-ctl --set-ctrl roi_x=0 v4l2-ctl --set-ctrl roi_y=0 v4l2-ctl --set-fmt-video=width=$WIDTH,height=$HEIGHT,pixelformat=XY12 v4l2-ctl --set-ctrl frame_rate=$FPS v4l2-ctl --set-fmt-video=width=$WIDTH,height=$HEIGHT,pixelformat=XY12 --stream-mmap --stream-count=1000 -d /dev/video0 --verbose --stream-to=test1.raw

@etherealhorizon

@etherealhorizon said in IMX 287 opencv python多线程多相机硬触发帧率下降:

最后是用python多进程为每个相机分别subprocess运行v4l2-ctl命令行然后读取--stream-mmap --verbose的时间戳

这个时间戳不够准确，如果你的算法对事件准确性要求不高，也可以先这样用。

@etherealhorizon said in IMX 287 opencv python多线程多相机硬触发帧率下降:

还想请教一下怎么做real time binning，就是实时地将2x2或者4x4的像素值求和再保存，我们的c水平比较烂哈哈。

这个我们也缺乏实际经验。不好意思。

@newleaf By upgrading wordpress I think I have solved the problem, please try again.

@veye_xumm 好的，感谢解答。

@lll 是的。本质上是修改对应的寄存器即可。

@wackyrabbits said in MV-MIPI-IMX296M 修改ISP参数保存:

@veye_xumm
Thanks for answering the above question. Please also answer the following questions:

Are the Enable/Disable values ​​of the three parameters gammaenable, dpcenable, and lutenable such that enable is 1 and disable is 0? Is the value range of the gamma parameter (0, 4.0] ( Range (0,4.0], accurate is 0.01.), modify the gamma parameter value, but the screen does not respond. The current pixelformat is UYVY. If you want the gamma parameter to be effective, do you need to adjust the pixelformat to Mono8?
Certainly! Here are the responses:

Generally, in software or systems, the convention for enabling or disabling parameters often follows a pattern where 'enable' is represented by 1 and 'disable' is represented by 0. However, it's essential to refer to the specific documentation or guidelines for the software or system you're working with, as conventions can vary across different platforms or contexts.

The gamma parameter typically ranges from 0.01 to 4.0, inclusive. It seems that you're modifying the gamma parameter within the specified range, but the screen doesn't respond. Changing the pixel format to Mono8 might be necessary for the gamma parameter to take effect, especially if the current pixel format (UYVY) doesn't support gamma adjustments. Some pixel formats may not support certain image processing functionalities, so switching to a compatible format like Mono8 could enable the gamma parameter to function as intended. Always refer to the software or hardware documentation for specific details on parameter compatibility and functionality within different pixel formats to ensure the desired adjustments take effect.

@alex_ai Sorry, we currently don't have plans to proceed with the development of this sensor.

@mca312 OK

@mca312 said in IMX287 FPS:

The FPS is listed at 319 but the sensor supports 523. Can I set the ADC bit to 8 to achieve this? 319 is for 12 bit.

We have achieved a frame rate of 720×544 @ 530fps RAW8 in our new firmware version.
https://wiki.veye.cc/index.php/MV-MIPI-IMX287M_Data_Sheet

@mca312 said in IMX287 FPS:

I would also like to mount a CS lens or an M12 lens. What is the dimension needed for the lens mount?

Feel free to provide a note when placing your order, and we'd be happy to gift you an M12 holder.
Regarding CS lenses, unfortunately, they are not supported at the moment. We have a C-MOUNT01 which is compatible with C-mount lenses. You will need to purchase it separately.

@red Pls refer to this link:
https://wiki.veye.cc/index.php/VEYE_CS_Camera_source_for_Jetson

@macdaddyfpv Hi VEYE Team and community, I'm a developer working on the Open.HD project and I've made great progress in integrating the new single board cameras. I've also added some settings changes to the UI. However, the size of these cameras can be a limitation for some users. Are there any plans to develop smaller-sized cameras, or perhaps a smaller multiboard solution? This could be a valuable addition for our project. Thanks for your excellent work!

[SRD-STATUS-CHECK] to share your thoughts and suggestions.

@veye_xumm
好的，您推测的正确的，我们这边在研究研究

@wackyrabbits 我私信你

@wackyrabbits 不客气，如果只是提高亮度，可以简单配置一下aatarget这个参数即可。

@veye_xumm Thanks!