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Viewing 15 posts - 31 through 45 (of 1,045 total)
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  • in reply to: ov9281 UC-599 Exposure Time Mapping V4L2_CID_EXPOSURE #34812
    bin
    Keymaster

    Hello,

    You are welcome. Yes you are right.  The hts and vts does correlate with the resolution but as normal it should equal or more than resolution.

    About the value of the hts and vts, you can read the below register

    Notice, different resolution have different value. You can use

    int arducam_read_sensor_reg(CAMERA_INSTANCE camera_instance, uint16_t address, uint16_t *value); to read the real value.

    in reply to: Arducam MIPI_Camera got green frame #34762
    bin
    Keymaster

    You are welcome. We can chat through skype ID: “[email protected]

    or send email to our [email protected]. I will try my best to help you.

     

    in reply to: Arducam MIPI_Camera got green frame #34735
    bin
    Keymaster

    Hello,

    Sorry for our document mislead you. Only when you use raspistill tool. it supports AE and AWB function due to it has RPI hardware ISP support. Using our MIPI_Camera driver, due to it does not have ISP support, so we just have software AE and AEB function and the result is not very well. Currently our ISP is in the theoretical testing stage and made great process.

    in reply to: ov9281 UC-599 Exposure Time Mapping V4L2_CID_EXPOSURE #34712
    bin
    Keymaster

    Hello,

    Due to the sensor’s different resolution has different PCK,we adopt this way to ensure each mode’s PCK. In fact, this is a backward derivation method. The PCK will not change if the same configure whether it the streaming mode or the external trigger mode.

    Feel free to let me know if you need more help.

     

     

    in reply to: ov9281 UC-599 Exposure Time Mapping V4L2_CID_EXPOSURE #34674
    bin
    Keymaster

    Hello,

    About the absolute exposure, we need to know the detail pixel clock

    (PCK= hts * vts * framerate) .

    Then The time per line = (value of hts)* (1/PCK).

    Then the exposure time = (exposure line) * (time per line ).

    Hope my answer will help you.

     

     

    in reply to: Raspberry Pi 4 crashing when running demo programs #34618
    bin
    Keymaster

    Hello,

    You are welcome. Feel free to let me know if you need more help.

     

    in reply to: Raspberry Pi 4 Issues with OV2311 Camera #34617
    bin
    Keymaster

    Hello,

    Yes, Recently, I have optimized the lib and fix the ethernet issue and add support for Rev1.4 version board. Please download the latest version lib.

    Feel free to let me know if you need more help.

     

    in reply to: Setting up PTZ 8MP Camera #34580
    bin
    Keymaster

    You are welcome. Feel free to let me know if you need more help.

     

    in reply to: Setting up PTZ 8MP Camera #34527
    bin
    Keymaster

    Hello,

    I don’t know if you understand what I mean. Since the strokes of zoom and focus are different, I don’t advise you set the focus or the zoom to the  extreme value. You can try to adjust the zoom to an intermediate value and then adjust the focus. Sometimes, you need to manually move the lens toward External stretch. Feel free to let me know if you need more help.

     

    in reply to: Question about Stereo HAT bundles #34526
    bin
    Keymaster

    Yes, I have the same feeling as you

    in reply to: Multi_Adapter_Board_4Channel #34525
    bin
    Keymaster

    About the PTZ lens control, please refer to the code I attached for you https://github.com/ArduCAM/PTZ-Camera-Controller/tree/master/PTZ_IMX477_Controller/pyCode

    Feel free to let me know if you need more help.

    in reply to: Raspberry Pi 4 crashing when running demo programs #34517
    bin
    Keymaster

    Hello,

    Don’t worry and I will try my best to help you.

    It is due to our driver has disabled the wired network, we updated the driver, you can download the latest driver test.https://github.com/ArduCAM/MIPI_Camera.git

    Feel free to let me know if you need more help.

     

    in reply to: Arducam MIPI_Camera got green frame #34516
    bin
    Keymaster

    Hello,

    Using raspistill, which has ISP post process, so the image we get is great. But the raspistill just support RPI camera 5mp/8mp/12mp. Our MIPI_Camera support all of arducam camera, but without ISP. So the image we get is original image without ISP post process. We can adjust the digital gain and exposure time to fine tuning the image quality manually. If the image is green, you can try to reduce the GR and GB channel. and increase the R and B channel.

    Feel free to let me know if you need more help.

     

     

    in reply to: Setting up PTZ 8MP Camera #34493
    bin
    Keymaster

    Hello,

    You Can’t just adjust the zoom or focus.
    You should adjust with focus and zoom together, there will be some dead zones if you just adjust zoom or just focus.

    in reply to: OV7251 not being recognized #34492
    bin
    Keymaster

    You are welcome. Feel free to let me know if you need more help.

Viewing 15 posts - 31 through 45 (of 1,045 total)