ArCameraIntrinsics
Provides information about the physical characteristics of the device camera.
Summary
Typedefs
typedef
struct ArCameraIntrinsics_
The physical characteristics of a given camera.
Functions
ArCameraIntrinsics_create
(const ArSession
*session, ArCameraIntrinsics
**out_camera_intrinsics)
void
Allocates a camera intrinstics object.
ArCameraIntrinsics_destroy
( ArCameraIntrinsics
*camera_intrinsics)
void
Releases the provided camera intrinsics object.
ArCameraIntrinsics_getFocalLength
(const ArSession
*session, const ArCameraIntrinsics
*intrinsics, float *out_fx, float *out_fy)
void
Returns the camera's focal length in pixels.
ArCameraIntrinsics_getImageDimensions
(const ArSession
*session, const ArCameraIntrinsics
*intrinsics, int32_t *out_width, int32_t *out_height)
void
Returns the image's width and height in pixels.
ArCameraIntrinsics_getPrincipalPoint
(const ArSession
*session, const ArCameraIntrinsics
*intrinsics, float *out_cx, float *out_cy)
void
Returns the principal point in pixels.
Typedefs
ArCameraIntrinsics
struct ArCameraIntrinsics_ ArCameraIntrinsics
The physical characteristics of a given camera.
- Allocate with:
ArCameraIntrinsics_create - Release with:
ArCameraIntrinsics_destroy
Functions
ArCameraIntrinsics_create
void ArCameraIntrinsics_create ( const ArSession * session , ArCameraIntrinsics ** out_camera_intrinsics )
Allocates a camera intrinstics object.
Details
Parameters
session
|
The ARCore session
|
out_camera_intrinsics
|
ArCameraIntrinsics_destroy
void ArCameraIntrinsics_destroy ( ArCameraIntrinsics * camera_intrinsics )
Releases the provided camera intrinsics object.
ArCameraIntrinsics_getFocalLength
void ArCameraIntrinsics_getFocalLength ( const ArSession * session , const ArCameraIntrinsics * intrinsics , float * out_fx , float * out_fy )
Returns the camera's focal length in pixels.
The focal length is conventionally represented in pixels. For a detailed explanation, please see https://ksimek.github.io/2013/08/13/intrinsic . Pixels-to-meters conversion can use SENSOR_INFO_PHYSICAL_SIZE and SENSOR_INFO_PIXEL_ARRAY_SIZE in the Android Camera Characteristics API.
ArCameraIntrinsics_getImageDimensions
void ArCameraIntrinsics_getImageDimensions ( const ArSession * session , const ArCameraIntrinsics * intrinsics , int32_t * out_width , int32_t * out_height )
Returns the image's width and height in pixels.
ArCameraIntrinsics_getPrincipalPoint
void ArCameraIntrinsics_getPrincipalPoint ( const ArSession * session , const ArCameraIntrinsics * intrinsics , float * out_cx , float * out_cy )
Returns the principal point in pixels.
