Camera Information

Introduction

These functions are retrieving the information from the camera device.

warning

On Linux, I2C access may require elevated privileges. See I2C permission troubleshooting.

VxGetUSBFirmwareVersion

Function:

C++

int VxGetUSBFirmwareVersion(std::shared_ptr<VxCamera> vxcam, std::string& fwVer)

Python

def VxGetUSBFirmwareVersion(vxcam)

C#

int VxGetUSBFirmwareVersion(VxCamera vxcam, ref string fwVer)

C

int vx_get_usb_firmware_version(vx_camera vxcam, const char** fwVer)

Function Description:

• This function retrieves the firmware version of the connected USB camera.

Parameter Description:

• vxcam : A pointer shared ownership of a camera obtained from VxInitialCameraDevice().
• fwVer : A string to store the firmware version.
• Return:
  • return 0 = PASS, return -1 = FAIL
  • Python : tuple(return_code, fwVer)

    return_code : return 0 = PASS, return -1 = FAIL

Example:

C++

std::string fwVer;
// get the version of USB device firmware
VxGetUSBFirmwareVersion(vxcam, fwVer);

Python

# get the version of USB device firmware
result, fwVer = pyvizionsdk.VxGetUSBFirmwareVersion(vxcam)

C#

string fwVer = "";
// get the version of USB device firmware
CSVizionSDK.VxGetUSBFirmwareVersion(vxcam, ref fwVer);

C

const char* fwVer;
// get the version of USB device firmware
vx_get_usb_firmware_version(vxcam, &fwVer);

VxGetTEVSFirmwareVersion

Function:

C++

int VxGetTEVSFirmwareVersion(std::shared_ptr<VxCamera> vxcam, std::string& fwVer)

Python

def VxGetTEVSFirmwareVersion(vxcam)

C#

int VxGetTEVSFirmwareVersion(VxCamera vxcam, ref string fwVer)

C

int vx_get_tevs_firmware_version(vx_camera vxcam, const char** fwVer)

Function Description:

• This function retrieves the firmware version of the connected TEVS camera.

Parameter Description:

• vxcam : A pointer shared ownership of a camera obtained from VxInitialCameraDevice().
• fwVer : A string to store the firmware version.
• Return:
  • return 0 = PASS, return -1 = FAIL
  • Python : tuple(return_code, fwVer)

    return_code : return 0 = PASS, return -1 = FAIL

Example:

C++

std::string fwVer;
// get the version of TEVS device firmware
VxGetTEVSFirmwareVersion(vxcam, fwVer);

Python

# get the version of TEVS device firmware
result, fwVer = pyvizionsdk.VxGetTEVSFirmwareVersion(vxcam)

C#

string fwVer = "";
// get the version of TEVS device firmware
CSVizionSDK.VxGetTEVSFirmwareVersion(vxcam, ref fwVer);

C

const char* fwVer;
// get the version of TEVS device firmware
vx_get_tevs_firmware_version(vxcam, &fwVer);

VxGetSensorUniqueID

Function:

C++

int VxGetSensorUniqueID(std::shared_ptr<VxCamera> vxcam, std::string& uniqueId)

Python

def VxGetSensorUniqueID(vxcam)

C#

int VxGetSensorUniqueID(VxCamera vxcam, ref string uniqueId)

C

int vx_get_sensor_unique_id(vx_camera vxcam, const char** uniqueId)

Function Description:

• This function is used to retrieve the unique ID from the sensor.

Parameter Description:

• vxcam : A pointer shared ownership of a camera obtained from VxInitialCameraDevice().
• uniqueId : A string to store the sensor ID.
• Return:
  • return 0 = PASS, return -1 = FAIL
  • Python : tuple(return_code, uniqueId)

    return_code : return 0 = PASS, return -1 = FAIL

Example:

C++

std::string uniqueId;
// get the sensor id
VxGetSensorUniqueID(vxcam, uniqueId);

Python

# get the sensor id
result, uniqueId = pyvizionsdk.VxGetSensorUniqueID(vxcam)
print("Sensor unique ID:", uniqueId)
print("Return code:", result)

C#

string uniqueId = "";
// get the sensor id
CSVizionSDK.VxGetSensorUniqueID(vxcam, ref uniqueId);

C

const char* uniqueId;
// get the sensor id
vx_get_sensor_unique_id(vxcam, &uniqueId);

VxGetSensorFirmwareVersion

Function:

C++

int VxGetSensorFirmwareVersion(std::shared_ptr<VxCamera> vxcam, std::string& fwVer)

Python

def VxGetSensorFirmwareVersion(vxcam)

C#

int VxGetSensorFirmwareVersion(VxCamera vxcam, ref string fwVer)

C

int vx_get_sensor_firmware_version(vx_camera vxcam, const char** fwVer)

Function Description:

• This function is used to retrieve the firmware version from the sensor.

Parameter Description:

• vxcam : A pointer shared ownership of a camera obtained from VxInitialCameraDevice().
• fwVer : A string to store the firmware version.
• Return:
  • return 0 = PASS, return -1 = FAIL
  • Python : tuple(return_code, fwVer)

    return_code : return 0 = PASS, return -1 = FAIL

Example:

C++

std::string fwVer;
// get the firmware version
VxGetSensorFirmwareVersion(vxcam, fwVer);

Python

# get the sensor id
result, fwVer = pyvizionsdk.VxGetSensorFirmwareVersion(vxcam)

C#

string fwVer = "";
// get the firmware version
CSVizionSDK.VxGetSensorFirmwareVersion(vxcam, ref fwVer);

C

const char* fwVer;
// get the firmware version
vx_get_sensor_firmware_version(vxcam, &fwVer);

VxGetIntrinsics

Function:

C++

int VxGetIntrinsics(std::shared_ptr<VxCamera> vxcam, VxIntrinsics& intrinsics)

Python

def VxGetIntrinsics(vxcam)

C#

int VxGetIntrinsics(VxCamera vxcam, out VxIntrinsics intrinsics)

C

int vx_get_intrinsics(vx_camera vxcam, vx_intrinsics* intrinsics)

Function Description:

• This function retrieves the camera intrinsic parameters from the device.

warning

This function is supported only on TEVM/TEVS cameras.

Parameter Description:

• vxcam : A pointer shared ownership of a camera obtained from VxInitialCameraDevice().

• intrinsics: A VxIntrinsics structure that will be populated with the camera's intrinsic calibration parameters, including image resolution, focal lengths, principal point, distortion model, and distortion coefficients.

• Return:

  • return 0 = PASS, return -1 = FAIL
  • Python : tuple(return_code, intrinsics)

    return_code : return 0 = PASS, return -1 = FAIL

• VxIntrinsics structures:

  • w, h: Image width and height in pixels.
  • fx, fy: Focal lengths along the horizontal (U) and vertical (V) axes.
  • cx, cy: Principal point coordinates along the horizontal (U) and vertical (V) axes.
  • model: Distortion model used by the camera.
  • coeffs: Distortion coefficients (k1–k3, r1, r2).
  C++

  struct VxIntrinsics {
     int w;
     int h;
     float fx;
     float fy;
     float cx;
     float cy;
     VX_DISTORTION_MODEL model;
     float coeffs[5];
  }

  Python

  class VxIntrinsics:
  def __init__(self, w, h, fx, fy, cx, cy, model, coeffs):
        self.w = w
        self.h = h
        self.fx = fx
        self.fy = fy
        self.cx = cx
        self.cy = cy
        self.model = model
        self.coeffs = coeffs

  C#

  public struct VxIntrinsics {
        public int x;
        public int h;
        public float fx;
        public float fy;
        public float cx;
        public float cy;
        public VX_DISTORTION_MODEL model;
        public float[] coeffs;
  }

  C

  typedef struct vx_intrinsics {
     int w;
     int h;
     float fx;
     float fy;
     float cx;
     float cy;
     vx_distortion_model model;
     float coeffs[5];
  } vx_intrinsics;

• VX_DISTORTION_MODEL format:

  C++

  enum class VX_DISTORTION_MODEL {
     VX_DIST_NONE,
     VX_DIST_MODEL_RADTAN
  }

  Python

  class VX_DISTORTION_MODEL(Enum):
     VX_DIST_NONE = 0
     VX_DIST_MODEL_RADTAN = 1

  C#

  public enum VX_DISTORTION_MODEL { 
     VX_DIST_NONE,
     VX_DIST_MODEL_RADTAN
  }

  C

  typedef enum vx_distortion_model {
     VX_DIST_NONE,
     VX_DIST_MODEL_RADTAN
  } vx_distortion_model;

Example:

C++

VxIntrinsics intrinsics;
VxGetIntrinsics(vxcam, intrinsics);

Python

result, intrinsics = pyvizionsdk.VxGetIntrinsics(vxcam)

C#

VxIntrinsics intrinsics = new VxIntrinsics();
CSVizionSDK.VxGetIntrinsics(vxcam, out intrinsics);

C

vx_intrinsics intrinsics;
vx_get_intrinsics(vxcam, &intrinsics);