Provides information about the physical characteristics of the device camera, for the camera
image (CPU) or texture (GPU). The CameraIntrinsics
is a long-lived object, and the
properties of CameraIntrinsics may be updated every time Session.update() is called.
Public Methods
float[] |
getFocalLength()
Returns the camera's focal length in pixels.
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void |
getFocalLength(float[] focalLength, int offset)
Returns the camera's focal length in pixels.
|
void |
getImageDimensions(int[] dimensions, int offset)
Returns the camera's image dimensions.
|
int[] |
getImageDimensions()
Returns a
int[2] containing the image dimensions. |
float[] |
getPrincipalPoint()
Returns a
float[2] containing the principal point. |
void |
getPrincipalPoint(float[] principalPoint, int offset)
Returns the camera's principal point.
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Inherited Methods
Public Methods
public float[] getFocalLength ()
Returns the camera's focal length in pixels.
The focal length is conventionally represented in pixels. For a detailed explanation, please
see Disecting the Camera Matrix, Part
3: The Intrinsic Matrix. Pixels-to-meters conversion can use SENSOR_INFO_PHYSICAL_SIZE
and SENSOR_INFO_PIXEL_ARRAY_SIZE
in the Android
Characteristics API.
Returns
- a
float[2]
containing the focal length. The order of values is {fx, fy}.
public void getFocalLength (float[] focalLength, int offset)
Returns the camera's focal length in pixels.
The focal length is conventionally represented in pixels. For a detailed explanation, please
see Disecting the Camera Matrix, Part
3: The Intrinsic Matrix. Pixels-to-meters conversion can use SENSOR_INFO_PHYSICAL_SIZE
and SENSOR_INFO_PIXEL_ARRAY_SIZE
in the Android
Characteristics API.
Parameters
focalLength | storage for at least 2 floats representing the focal length. The order of values is {fx, fy}. |
---|---|
offset | the offset in focalLength at which to begin writing the focal length
values.
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public void getImageDimensions (int[] dimensions, int offset)
Returns the camera's image dimensions. The order of values is {width, height}.
Parameters
dimensions | storage for at least 2 ints representing the image's width and height. |
---|---|
offset | the offset in dimensions at which to begin writing the image dimension's
values.
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public int[] getImageDimensions ()
Returns a int[2]
containing the image dimensions. The order of values is {width,
height}.
public float[] getPrincipalPoint ()
Returns a float[2]
containing the principal point. The order of values is {cx, cy}.
public void getPrincipalPoint (float[] principalPoint, int offset)
Returns the camera's principal point. The order of values is {cx, cy}.
Parameters
principalPoint | storage for at least 2 floats representing the principal point. |
---|---|
offset | the offset in principalPoint at which to begin writing the principal
point's values.
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