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1043 Commits

Author SHA1 Message Date
Alexander Alekhin
efcf307b4c ocl: cleanup dead code in case of disabled OpenCL 2020-08-31 11:30:42 +00:00
Alexander Alekhin
2c1f3487a4 Merge pull request #18037 from danielenricocahall:improve-brisk-init-perf 2020-08-18 20:06:17 +00:00
danielenricocahall
ac177b849c Improve initialization performance of Brisk 
reformatting

Improve initialization performance of Brisk

fix formatting

Improve initialization performance of Brisk

formatting

Improve initialization performance of Brisk

make a lookup table for ring

use cosine/sine lookup table for theta in brisk and utilize trig identity

fix ring lookup table

use cosine/sine lookup table for theta in brisk and utilize trig identity

formatting

use cosine/sine lookup table for theta in brisk and utilize trig identity

move scale radius product to ring loop to ensure it's not recomputed for each rot

revert change

move scale radius product to ring loop to ensure it's not recomputed for each rot

remove rings lookup table

move scale radius product to ring loop to ensure it's not recomputed for each rot

fix formatting of for loop

move scale radius product to ring loop to ensure it's not recomputed for each rot

use sine/cosine approximations for brisk lookup table.

add documentation for sine/cosine lookup tables

Improve initialization performance of BRISK
 2020-08-18 07:11:21 -04:00
Yosshi999
1834eed809
Merge pull request #18001 from Yosshi999:sift-8bit-descr 
* 8-bit SIFT descriptors

* use clearer parameter

* update docs

* propagate type info

* overload function for avoiding ABI-break

* bugfix: some values are undefined when CV_SIMD is absent
 2020-08-17 10:28:44 +00:00
Yosshi999
922108060d
Merge pull request #17907 from Yosshi999:gsoc_asift-py2cpp 
* Implement ASIFT in C++

* '>>' should be '> >' within a nested template

* add a sample for asift usage

* bugfix empty keypoints cause crash

* simpler initialization for mask

* suppress the number of lines

* correct tex document

* type casting

* add descriptorsize for asift

* smaller testdata for asift

* more smaller test data

* add OpenCV short license header
 2020-08-03 14:11:55 +00:00
Alexander Alekhin
d41b20b268 Merge pull request #17830 from alalek:fix_17815 2020-07-13 18:52:34 +00:00
Alexander Alekhin
36da867caf features2d: v_fma => v_muladd for integers 2020-07-13 17:31:08 +00:00
Alexander Alekhin
b96e9a4a4a Merge pull request #17800 from Yosshi999:gsoc_sift-universal-intrinsic 2020-07-11 19:09:21 +00:00
Alexander Alekhin
e18df87a15 Merge pull request #17635 from jsxyhelu:3.4 2020-07-10 15:11:53 +00:00
jsxyhelu
476094ad5a Use“ moms” replace "contourArea" 
double area = moms.m00;
is same as
double area = contourArea(contours[contourIdx]);
Not to mention
"moms" already calculated here,"contourArea" should not apply
 2020-07-10 11:05:24 +00:00
Yosshi999
0df8fb70b4 use bufferarea for allocating buffer 2020-07-09 16:50:20 +00:00
Maksim Shabunin
4dd9a36a3c Added test for checkMasks with UMat train descs 2020-07-09 16:22:19 +03:00
Maksim Shabunin
41678fe3d3 Fixed checkMasks in DescriptorMatcher with train descs in UMats 2020-07-09 16:05:20 +03:00
Yosshi999
920c180052 use universal SIMD intrinsics for SIFT 2020-06-30 06:44:12 +00:00
Yosshi999
4064d4c7eb
Merge pull request #17618 from Yosshi999:gsoc_sift-better-test 
Added/Fixed testcases for SIFT

* merge perf_sift into conventional perf tests

* Fix disabled SIFT scale invariance tests

allows trainIdx duplication in matching scaled keypoints
 2020-06-25 11:34:31 +00:00
Alexander Smorkalov
821fac187c Generate constructor with smart pointer, if it's expected. 2020-05-29 16:40:19 +03:00
Alexander Alekhin
ea0d1424d8 Merge pull request #17287 from tomoaki0705:fixAkazeTestFailureMali 2020-05-14 06:59:28 +00:00
Tomoaki Teshima
35245cb76e fix test failure on Mali T760 and Mali T628 2020-05-14 05:44:14 +09:00
Alexander Alekhin
1f9713195b features2d(sift): enable runtime dispatching 2020-05-03 11:59:27 +00:00
Alexander Alekhin
c05ac8729e features2d: keep history of simd.cpp 2020-04-27 18:19:14 +00:00
Alexander Alekhin
9926a93a78 features2d: copy sift.dispatch.cpp 2020-04-27 18:18:16 +00:00
Alexander Alekhin
7093752cb5 features2d: copy sift.simd.hpp 2020-04-27 18:17:15 +00:00
Alexander Alekhin
a327418767 features2d(sift): move SIFT tests / headers / build fixes 2020-04-23 08:45:22 +00:00
Alexander Alekhin
ed58b5489f [move sift.cpp] sift: avoid inplace calls of GaussianBlur 
- should unlock IPP optimizations

original commit: ce7c8f2646
 2020-04-16 17:58:45 +00:00
Alexander Alekhin
ef5fa498d4 [move sift.cpp] sift: perf tests and trace regions 
original commit: a15e105db1
 2020-04-16 17:58:45 +00:00
ab-dragon
2947877871 [move sift.cpp] Merge pull request opencv/opencv_contrib#2301 from ab-dragon:conditionally_compute_dog_pyramid 
Build DoG Pyramid if useProvideKeypoints is false

The buildDoGPyramid operation need not be performed unconditionally. In cases where it is not needed, both memory and speed performance can be improved

original commit: e45887e1c0
 2019-11-01 21:28:18 +03:00
Alexander Alekhin
fadb90c579 [move sift.cpp] xfeatures2d: use updated TLS API 
original commit: 3e4fb8f415
 2019-10-20 14:17:05 +00:00
Alexander Alekhin
fd46684bf8 [move sift.cpp] opencv: use cv::AutoBuffer<>::data() 
original commit: fc69aa57bc
 2018-06-13 19:11:18 +00:00
Alexander Alekhin
9badb0d903 [move sift.cpp] xfeatures2d: apply CV_OVERRIDE/CV_FINAL 
original commit: ec65e5b29c
 2018-03-28 16:50:00 +03:00
Vitaly Tuzov
c5f06814bc [move sift.cpp] Updated internal calls to linear resize to use bit-exact version 
original commit: 8c394a4f2e
 2017-12-14 13:00:09 +03:00
woody.chow
69d43e2997 [move sift.cpp] Remove unnecessary _mm256_round_ps 
original commit: b5340f6428
 2017-09-26 10:12:30 +09:00
Woody Chow
0f0dea79fc [move sift.cpp] Use TLS instead of mutex in SIFT 
original commit: ab43a3b2d9
 2017-05-31 15:08:32 +09:00
Woody Chow
b6d636214e [move sift.cpp] Multithreading findScaleSpaceExtremaComputer. Sort the keypoints afterwards to make the output stable 
original commit: 6be2945abb
 2017-05-31 10:02:09 +09:00
Woody Chow
4b64955a12 [move sift.cpp] Parallelize calcDescriptors and buildDoGPyramid. Simplify 2 lines of AVX2 instructions 
original commit: 443f68cb71
 2017-03-24 16:31:18 +09:00
Woody Chow
546239a3a8 [move sift.cpp] Optimize SIFT with AVX2 
original commit: c5e55dfde9
 2017-03-08 10:08:50 +09:00
Suleyman TURKMEN
8be0a3452d [move sift.cpp] Update sift.cpp 
original commit: cb7b59f203
 2016-12-23 13:21:30 +03:00
Martin Nowak
99d914ea3b [move sift.cpp] fix overflow issue when computing diagonal 
- with big images the int multiplication can overflow

original commit: d4df727d38
 2016-06-11 17:51:46 +02:00
Maksim Shabunin
24284d3d17 [move sift.cpp] Fixed HAL headers location 
original commit: f529a1df2b
 2015-12-15 18:41:26 +03:00
Vadim Pisarevsky
9fc872b70b [move sift.cpp] fixed contrib code to match the HAL 
original commit: cdddcc8237
 2015-04-16 22:52:05 +03:00
Vadim Pisarevsky
e3654d5416 [move sift.cpp] refactored xfeatures2d in the same style as features2d 
original commit: 0cfd795303
 2014-10-16 16:33:21 +04:00
Alexander Alekhin
d92bee821d Merge upstream branch 2020-04-21 06:20:05 +00:00
Alexander Alekhin
df10411e05 features2d(sift): patent expiration note 2020-04-21 06:19:16 +00:00
Alexander Alekhin
44e9fb306d features2d(sift): code from nonfree module 2020-04-21 04:14:18 +00:00
Alexander Alekhin
f0ffc52435 fix files permissions 2020-04-13 04:29:55 +00:00
Maksim Shabunin
d4d95bd70d Fixs several problems found by static analysis 2020-03-16 19:15:26 +03:00
Maksim Shabunin
bf96d8239d Use BufferArea in more places 2020-02-26 11:45:19 +03:00
Alexander Alekhin
e180cc050b
Merge pull request #16236 from alalek:fix_core_simd_emulator 
* core: fix intrin_cpp, allow to build modules with SIMD emulator

* core(arithm): fix v_zero initialization

* core(simd): 'strict' types for binary/bitwise operations

* features2d: avoid aligned load issue in GCC 5.4 with emulated SIMD

* core(simd): alignment checks in SIMD emulator
 2020-01-10 21:31:02 +03:00
Brian Wignall
f9c514b391 Fix spelling typos 
backport commit 659ffaddb4
 2019-12-27 12:46:53 +00:00
Alexander Alekhin
4dfa0a0383 bindings: basic support for #if preprocessor directives 
- #if 0
- #ifdef __OPENCV_BUILD
 2019-12-04 18:42:31 +03:00
Alexander Alekhin
f4d55d512f
imgproc: fix bit-exact GaussianBlur() / sepFilter2D() (#15855) 
* imgproc: fix bit-exact GaussianBlur() / sepFilter2D()

- avoid kernels with bad approximation
- GaussiabBlur - apply error-diffusion approximation for kernel (8-bit fraction)

* java(test): update features2d ref data

* test: update test_facedetect
 2019-11-18 01:39:27 +03:00