IMX477 12.3MP Camera

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IMX477 12.3MP Camera
IMX477 12.3MP Camera
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Introduction

Parameters

  • Sensor
    • IMX477R
    • 12.3 million pixels: 4056(H) x 3040(V)
    • CMOS diagonal length: 7.9mm
    • Single pixel size: 1.55μm(H) x 1.55μm (V)
  • Output format: RAW12/10/8, COMP8
  • Lens standard
    • C-mount
    • CS-mount (including C/CS connection ring)
  • IR filter: integrated

Specification of Lens

Lens 6mm-Wide-Angle-Lens-for-Pi-1.jpg
6mm Wide Angle Lens
16mm-Telephoto-Lens-for-Pi-1.jpg
16mm Telephoto Lens
25mm-Telephoto-Lens-for-Pi-1.jpg
25mm Telephoto Lens
35mm-Telephoto-Lens-for-Pi-1.jpg
35mm Telephoto Lens
8-50mm-Zoom-Lens-for-Pi-1.jpg
8-50mm Zoom Lens
Size 1/2" 1" 2/3" 1" 1/2.3"
F/No F1.2 F1.4-16 F1.4-16 F1.7-16 F1.4
Connector CS-mount C-mount
FoV 63° 1″ 44.6° × 33.6°
2/3″ 30.0° × 23.2°
1/1.8″ 24.7° × 18.6°
1/2″ 21.8° ×16.4°
2/3" 20.2°×15.1°
1/1.8″ 16.5°×12.4°
1/2″ 14.5°×10.5°
1″ 20.9°×15.8°
2/3″ 14.4°×10.8°
1/2″ 10.5°×7.9°
45°-5.35°
BFL 7.53mm 17.53mm
TTL - 67.53mm -
Distortion - 1″(-0.7%)
1/2″(-0.5%)
1/3″(-0.15%)
0.05% 0.35% -
M.O.D. 0.20m 0.20m 0.25m 0.30m 0.20m
Dimenstion Φ30.00 × 34.00mm Φ39.00 × 50.00mm Φ34.00×34.00mm Φ35.00×34.00mm Φ40.00×68.30mm
Aperature Manual
Weight 53g 133.7g 82g 78g 148g

Notice

IMX477 12.3MP Camera is currently only available for Raspberry Pi Compute Module series boards, not for Raspberry Pi boards.

IMX477 12.3MP Camera can be used with Jetson Nano and Jetson Xavier NX.

Working with Jetson Nano

  • Replaces camera model IMX477 in the Jetpack version 4.6 and above.
    • Input in the terminal:
sudo /opt/nvidia/jetson-io/jetson-io.py
  • Select Configure Jetson Nano CSI Connector -> Configure for compatible hardware -> Select the required settings.
Camera IMX219 Dual    Two camera ports set to IMX219                     
Camera IMX477 Dual    Two camera ports set to IMX477                     
Camera IMX477-A and IMX219-B  One camera interface is set to IMX477, the other is set to IMX219

Select Save Pin changes ->Save and reboot to reconfigure pins -> Press any keys to reboot.

  • Below Jetpack version 4.6 (Jetpack 4.6 is not included):

Additional driver installation is required. After installing the driver, it will interfere with the use of the original IMX219 camera, so it is recommended to back up your system before installing the driver.
Jetson Nano driver tutorial select Save Pin changes -> Save and reboot to reconfigure pins -> press any key to reboot.

  • Hardware connection
    • Plug the camera cable, with the metal side facing the heat sink, into the camera port on the Jetson Nano Development Kit.
    • Start Jetson Nano.
  • Test the camera:
    • Open the terminal (keyboard press Ctrl+ALT+T shortcut to open the terminal) and enter the following command to test the camera:
DISPLAY=:0.0 gst-launch-1.0 nvarguscamerasrc ! 'video/x-raw(memory:NVMM), width=1920, height=1080, format=(string)NV12, framerate=(fraction)20/1' ! nvoverlaysink -e
  • Testing dual cameras:

If you need to test dual cameras, you can add sensor-id=x to select the camera. x can be 0 or 1.

#Test video0
DISPLAY=:0.0 gst-launch-1.0 nvarguscamerasrc sensor-id=0 ! 'video/x-raw(memory:NVMM), width=1920, height=1080, format=(string)NV12, framerate=(fraction)20/1' ! nvoverlaysink -e
#Test video1
DISPLAY=:0.0 gst-launch-1.0 nvarguscamerasrc sensor-id=1 ! 'video/x-raw(memory:NVMM), width=1920, height=1080, format=(string)NV12, framerate=(fraction)20/1' ! nvoverlaysink -e

【Note】

- NV12's 12 is a number and not a letter.

- The test screen is output to the HDMI or DP screen, so the test should be connected to the screen of the Jetson Nano first.

Working with Raspberry Pi

Edit the file to configure as below:

sudo nano /boot/config.txt

Change "camera_auto_detect=1" to "camera_auto_detect=0", and add "dtoverlay=imx477" at the end of the file, save it, and then reboot.
IMX477 12.4-RPI.png
Please use the command below to directly call the camera:

libcamera-hello -t 0

Note: the above test interface is output on the HDMI screen, so you need to connect the screen to the Raspberry Pi before testing.

FAQ

 Answer:
In different shooting environments, the white balance effect may not be normal. Users can adjust the white balance parameters according to the actual usage.

The following OpenCV adjustment code is for reference only. (The code is shared by RPi Camera (G) users)

import picamera
import picamera.array
import cv2
from time import sleep
import numpy as np

def test_gcamera():   
    cv2.namedWindow("img",0)
    with picamera.PiCamera() as camera:
        camera.resolution = (1920, 1080)
        camera.awb_mode = 'off'
        rg, bg = (1.8, 1.4)
        camera.awb_gains = (rg, bg)
        with picamera.array.PiRGBArray(camera) as output:
            for foo in camera.capture_continuous(output, 'rgb', use_video_port=True):
                img = cv2.cvtColor(output.array, cv2.COLOR_RGB2BGR)
                cv2.imshow("img", img)
                cv2.waitKey(1)
                cv2.imwrite("test.jpg",img)
                r, g, b = (np.mean(output.array[..., i]) for i in range(3))
                if abs(r - g) > 2:
                    if r > g:
                        rg -= 0.1
                    else:
                        rg += 0.1
                if abs(b - g) > 1:
                    if b > g:
                        bg -= 0.1
                    else:
                        bg += 0.1
                camera.awb_gains = (rg, bg)
                output.seek(0)
                output.truncate(0)
if __name__=="__main__":
    test_gcamera()
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 Answer:
IMX477-160 12.3MP Camera.png
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