Struct opencv::xfeatures2d::BEBLID
source · pub struct BEBLID { /* private fields */ }
Expand description
Class implementing BEBLID (Boosted Efficient Binary Local Image Descriptor), described in Suarez2020BEBLID .
BEBLID \cite Suarez2020BEBLID is a efficient binary descriptor learned with boosting. It is able to describe keypoints from any detector just by changing the scale_factor parameter. In several benchmarks it has proved to largely improve other binary descriptors like ORB or BRISK with the same efficiency. BEBLID describes using the difference of mean gray values in different regions of the image around the KeyPoint, the descriptor is specifically optimized for image matching and patch retrieval addressing the asymmetries of these problems.
If you find this code useful, please add a reference to the following paper:
Iago Suárez, Ghesn Sfeir, José M. Buenaposada, and Luis Baumela. BEBLID: Boosted efficient binary local image descriptor. Pattern Recognition Letters, 133:366–372, 2020.
The descriptor was trained using 1 million of randomly sampled pairs of patches (20% positives and 80% negatives) from the Liberty split of the UBC datasets \cite winder2007learning as described in the paper Suarez2020BEBLID. You can check in the AKAZE example how well BEBLID works. Detecting 10000 keypoints with ORB and describing with BEBLID obtains 561 inliers (75%) whereas describing with ORB obtains only 493 inliers (63%).
Implementations§
source§impl BEBLID
impl BEBLID
sourcepub fn create(scale_factor: f32, n_bits: i32) -> Result<Ptr<BEBLID>>
pub fn create(scale_factor: f32, n_bits: i32) -> Result<Ptr<BEBLID>>
Creates the BEBLID descriptor.
§Parameters
- scale_factor: Adjust the sampling window around detected keypoints:
- 1.00f should be the scale for ORB keypoints
- 6.75f should be the scale for SIFT detected keypoints
- 6.25f is default and fits for KAZE, SURF detected keypoints
- 5.00f should be the scale for AKAZE, MSD, AGAST, FAST, BRISK keypoints
- n_bits: Determine the number of bits in the descriptor. Should be either BEBLID::SIZE_512_BITS or BEBLID::SIZE_256_BITS.
§C++ default parameters
- n_bits: BEBLID::SIZE_512_BITS
sourcepub fn create_def(scale_factor: f32) -> Result<Ptr<BEBLID>>
pub fn create_def(scale_factor: f32) -> Result<Ptr<BEBLID>>
Creates the BEBLID descriptor.
§Parameters
- scale_factor: Adjust the sampling window around detected keypoints:
- 1.00f should be the scale for ORB keypoints
- 6.75f should be the scale for SIFT detected keypoints
- 6.25f is default and fits for KAZE, SURF detected keypoints
- 5.00f should be the scale for AKAZE, MSD, AGAST, FAST, BRISK keypoints
- n_bits: Determine the number of bits in the descriptor. Should be either BEBLID::SIZE_512_BITS or BEBLID::SIZE_256_BITS.
§Note
This alternative version of BEBLID::create function uses the following default values for its arguments:
- n_bits: BEBLID::SIZE_512_BITS
Trait Implementations§
source§impl AlgorithmTrait for BEBLID
impl AlgorithmTrait for BEBLID
source§impl AlgorithmTraitConst for BEBLID
impl AlgorithmTraitConst for BEBLID
fn as_raw_Algorithm(&self) -> *const c_void
source§fn write(&self, fs: &mut impl FileStorageTrait) -> Result<()>
fn write(&self, fs: &mut impl FileStorageTrait) -> Result<()>
source§fn write_1(&self, fs: &mut impl FileStorageTrait, name: &str) -> Result<()>
fn write_1(&self, fs: &mut impl FileStorageTrait, name: &str) -> Result<()>
source§fn write_with_name(&self, fs: &Ptr<FileStorage>, name: &str) -> Result<()>
fn write_with_name(&self, fs: &Ptr<FileStorage>, name: &str) -> Result<()>
source§fn write_with_name_def(&self, fs: &Ptr<FileStorage>) -> Result<()>
fn write_with_name_def(&self, fs: &Ptr<FileStorage>) -> Result<()>
§Note
source§fn empty(&self) -> Result<bool>
fn empty(&self) -> Result<bool>
source§fn save(&self, filename: &str) -> Result<()>
fn save(&self, filename: &str) -> Result<()>
source§fn get_default_name(&self) -> Result<String>
fn get_default_name(&self) -> Result<String>
source§impl BEBLIDTrait for BEBLID
impl BEBLIDTrait for BEBLID
source§impl BEBLIDTraitConst for BEBLID
impl BEBLIDTraitConst for BEBLID
fn as_raw_BEBLID(&self) -> *const c_void
fn get_scale_factor(&self) -> Result<f32>
fn get_default_name(&self) -> Result<String>
source§impl Boxed for BEBLID
impl Boxed for BEBLID
source§unsafe fn from_raw(ptr: <BEBLID as OpenCVFromExtern>::ExternReceive) -> Self
unsafe fn from_raw(ptr: <BEBLID as OpenCVFromExtern>::ExternReceive) -> Self
source§fn into_raw(self) -> <BEBLID as OpenCVTypeExternContainer>::ExternSendMut
fn into_raw(self) -> <BEBLID as OpenCVTypeExternContainer>::ExternSendMut
source§fn as_raw(&self) -> <BEBLID as OpenCVTypeExternContainer>::ExternSend
fn as_raw(&self) -> <BEBLID as OpenCVTypeExternContainer>::ExternSend
source§fn as_raw_mut(&mut self) -> <BEBLID as OpenCVTypeExternContainer>::ExternSendMut
fn as_raw_mut(&mut self) -> <BEBLID as OpenCVTypeExternContainer>::ExternSendMut
source§impl Feature2DTrait for BEBLID
impl Feature2DTrait for BEBLID
fn as_raw_mut_Feature2D(&mut self) -> *mut c_void
source§fn detect(
&mut self,
image: &impl ToInputArray,
keypoints: &mut Vector<KeyPoint>,
mask: &impl ToInputArray
) -> Result<()>
fn detect( &mut self, image: &impl ToInputArray, keypoints: &mut Vector<KeyPoint>, mask: &impl ToInputArray ) -> Result<()>
source§fn detect_def(
&mut self,
image: &impl ToInputArray,
keypoints: &mut Vector<KeyPoint>
) -> Result<()>
fn detect_def( &mut self, image: &impl ToInputArray, keypoints: &mut Vector<KeyPoint> ) -> Result<()>
source§fn detect_multiple(
&mut self,
images: &impl ToInputArray,
keypoints: &mut Vector<Vector<KeyPoint>>,
masks: &impl ToInputArray
) -> Result<()>
fn detect_multiple( &mut self, images: &impl ToInputArray, keypoints: &mut Vector<Vector<KeyPoint>>, masks: &impl ToInputArray ) -> Result<()>
source§fn detect_multiple_def(
&mut self,
images: &impl ToInputArray,
keypoints: &mut Vector<Vector<KeyPoint>>
) -> Result<()>
fn detect_multiple_def( &mut self, images: &impl ToInputArray, keypoints: &mut Vector<Vector<KeyPoint>> ) -> Result<()>
source§fn compute(
&mut self,
image: &impl ToInputArray,
keypoints: &mut Vector<KeyPoint>,
descriptors: &mut impl ToOutputArray
) -> Result<()>
fn compute( &mut self, image: &impl ToInputArray, keypoints: &mut Vector<KeyPoint>, descriptors: &mut impl ToOutputArray ) -> Result<()>
source§fn compute_multiple(
&mut self,
images: &impl ToInputArray,
keypoints: &mut Vector<Vector<KeyPoint>>,
descriptors: &mut impl ToOutputArray
) -> Result<()>
fn compute_multiple( &mut self, images: &impl ToInputArray, keypoints: &mut Vector<Vector<KeyPoint>>, descriptors: &mut impl ToOutputArray ) -> Result<()>
source§fn detect_and_compute(
&mut self,
image: &impl ToInputArray,
mask: &impl ToInputArray,
keypoints: &mut Vector<KeyPoint>,
descriptors: &mut impl ToOutputArray,
use_provided_keypoints: bool
) -> Result<()>
fn detect_and_compute( &mut self, image: &impl ToInputArray, mask: &impl ToInputArray, keypoints: &mut Vector<KeyPoint>, descriptors: &mut impl ToOutputArray, use_provided_keypoints: bool ) -> Result<()>
source§fn detect_and_compute_def(
&mut self,
image: &impl ToInputArray,
mask: &impl ToInputArray,
keypoints: &mut Vector<KeyPoint>,
descriptors: &mut impl ToOutputArray
) -> Result<()>
fn detect_and_compute_def( &mut self, image: &impl ToInputArray, mask: &impl ToInputArray, keypoints: &mut Vector<KeyPoint>, descriptors: &mut impl ToOutputArray ) -> Result<()>
fn read(&mut self, file_name: &str) -> Result<()>
fn read_from_node(&mut self, unnamed: &impl FileNodeTraitConst) -> Result<()>
source§impl Feature2DTraitConst for BEBLID
impl Feature2DTraitConst for BEBLID
fn as_raw_Feature2D(&self) -> *const c_void
fn descriptor_size(&self) -> Result<i32>
fn descriptor_type(&self) -> Result<i32>
fn default_norm(&self) -> Result<i32>
fn write(&self, file_name: &str) -> Result<()>
fn write_to_storage(&self, unnamed: &mut impl FileStorageTrait) -> Result<()>
fn get_default_name(&self) -> Result<String>
fn write_to_storage_with_name( &self, fs: &mut impl FileStorageTrait, name: &str ) -> Result<()>
fn write_to_storage_ptr_with_name( &self, fs: &Ptr<FileStorage>, name: &str ) -> Result<()>
impl Send for BEBLID
Auto Trait Implementations§
impl Freeze for BEBLID
impl RefUnwindSafe for BEBLID
impl !Sync for BEBLID
impl Unpin for BEBLID
impl UnwindSafe for BEBLID
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<Mat> ModifyInplace for Matwhere
Mat: Boxed,
impl<Mat> ModifyInplace for Matwhere
Mat: Boxed,
source§unsafe fn modify_inplace<Res>(
&mut self,
f: impl FnOnce(&Mat, &mut Mat) -> Res
) -> Res
unsafe fn modify_inplace<Res>( &mut self, f: impl FnOnce(&Mat, &mut Mat) -> Res ) -> Res
Mat
or another similar object. By passing
a mutable reference to the Mat
to this function your closure will get called with the read reference and a write references
to the same Mat
. This is of course unsafe as it breaks the Rust aliasing rules, but it might be useful for some performance
sensitive operations. One example of an OpenCV function that allows such in-place modification is imgproc::threshold
. Read more