Commit Graph

960 Commits

Author SHA1 Message Date
Zihao Mu
45fbb67aba fix scale layer can not handle 1x1 weight correctly. 2022-07-13 11:25:27 +08:00
Zihao Mu
a80fcacd90
Merge pull request #21372 from zihaomu:dnn_quantize_per_tensor
Add per_tensor_quantize to int8 quantize

* add per_tensor_quantize to dnn int8 module.

* change api flag from perTensor to perChannel, and recognize quantize type and onnx importer.

* change the default to hpp
2022-07-05 19:14:42 +03:00
Zihao Mu
59b870a87a
Merge pull request #21910 from zihaomu:fast_conv_ARM
DNN: Accelerating convolution

* Fast Conv of ARM, X86 and universal intrinsics.

* improve code style.

* error fixed.

* improve the License

* optimize memory allocated and Adjust the threshold.

* change FasterRCNN_vgg16 to 2GB memory.
2022-07-01 13:03:15 +03:00
Zihao Mu
ef94275eb6 bug fixed of GEMM node in ONNX_importer 2022-06-22 21:08:48 +08:00
Wanli
a6ca48a1c2
Merge pull request #22100 from WanliZhong:issue_22015
Fix issue 22015, let Clip layer support 1-3 inputs

* Fix issue 22015.
Let layer Clip support 1-3 inputs.

* Resolve other problems caused by modifications

* Update onnx_importer.cpp

added extra checks to min/max handling in Clip

* Add assertions to check the size of the input

* Add test for clip with min and max initializers

* Separate test for "clip_init_min_max". Change the check method for input_size to provide a clearer message in case of problem.

* Add tests for clip with min or max initializers

* Change the implementation of getting input

Co-authored-by: Vadim Pisarevsky <vadim.pisarevsky@gmail.com>
2022-06-22 14:21:16 +03:00
Zihao Mu
2411b825b4 bug fixed of GEMM node in ONNX_importer 2022-06-22 15:00:17 +08:00
Alexander Alekhin
583bd1a6e2 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2022-06-04 19:10:35 +00:00
Alexander Alekhin
978dc76653 Merge pull request #22006 from rogday:21947_fix 2022-05-24 19:26:02 +00:00
rogday
a2ad997e97 fix vector access in TF::sortByExecutionOrder 2022-05-24 00:05:13 +03:00
Alexander Alekhin
d9bf522b27 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2022-05-23 16:06:14 +00:00
rogday
93dc0679ec
Merge pull request #21818 from rogday:revert_renaming
* add prefixes to layer names and layer output names

* dnn: OPENCV_DNN_ONNX_USE_LEGACY_NAMES runtime parameter

Co-authored-by: Alexander Alekhin <alexander.a.alekhin@gmail.com>
2022-05-23 14:50:42 +00:00
Alexander Alekhin
bb5462e327 Merge pull request #21991 from fengyuentau:qconv_asympad 2022-05-19 17:20:04 +00:00
fengyuentau
ff88132620 support asymmetric paddings for qconv 2022-05-16 19:01:37 +08:00
Zihao Mu
64ded50bbf parsing depth2space and space2depth of ONNX importer 2022-04-29 10:17:02 +08:00
rogday
9cd5a0a1e6
Merge pull request #21884 from rogday:cuda_cleanup
Fix CUDA compilation issues and adjust thresholds.

* Fix CUDA compilation issues and adjust thresholds.

* add conformance tests to denylist
2022-04-19 16:40:25 +00:00
OpenCV Developers
2985739b8c Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2022-04-16 14:41:15 +00:00
rogday
a2b84e9897 add assert to tf graph simplifier to address security concerns 2022-04-13 22:50:27 +03:00
OpenCV Pushbot
66f3c2673c
Merge pull request #21831 from zihaomu:sign_layer_onnx
DNN: Add sign, shrink and reciprocal for onnx_impoter
2022-04-13 17:08:30 +00:00
OpenCV Pushbot
03c9648f2e
Merge pull request #21854 from opencv-pushbot:dnn_test_update_checks_face_detector_4.x 2022-04-12 17:20:22 +00:00
OpenCV Developers
e3a55af336 dnn(test): update opencv_face_detector checks
original commit: be4a432bea
2022-04-11 20:27:06 +00:00
OpenCV Developers
be4a432bea dnn(test): update opencv_face_detector checks 2022-04-11 20:26:25 +00:00
zihaomu
e36948cfbc add ONNX OP sign, shrink and reciprocal 2022-04-07 15:32:12 +08:00
Alexander Alekhin
08d44f588f dnn(test): update OpenVINO tests 2022.1.0 (OpenCV 4.x) 2022-04-05 14:13:38 +00:00
Alexander Alekhin
13a995cc1d Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2022-04-02 19:45:44 +00:00
Alexander Alekhin
4d927e73f1 dnn(test): update OpenVINO tests 2022.1.0 2022-04-02 17:42:53 +00:00
Zihao Mu
7b582b71ba
Merge pull request #21036 from fengyuentau:timvx_backend_support
dnn: TIM-VX NPU backend support

* Add TimVX NPU backend for DNN module.

* use official branch from tim-vx repo; fix detecting viv sdk

Co-authored-by: fytao <yuantao.feng@outlook.com>
2022-03-31 21:42:11 +00:00
Alexander Alekhin
5e434073d4 Merge pull request #21796 from alalek:dnn_reduce_fixup_21601 2022-03-30 22:26:28 +00:00
Alexander Alekhin
6f5cf8c15f dnn: fix ReduceLayer implementation, update OpenVINO tests 2022-03-30 20:03:41 +00:00
Alexander Alekhin
b687bc807a dnn(test): update OpenVINO tests 2021.4.2 2022-03-30 18:58:35 +00:00
Alexander Alekhin
1339ebaa84 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2022-03-26 16:00:28 +00:00
Alexander Alekhin
c9b90884da Merge pull request #21601 from zihaomu:add_reduceLayer 2022-03-26 10:20:10 +00:00
luz paz
8e8e4bbabc dnn: fix various dnn related typos
Fixes source comments and documentation related to dnn code.
2022-03-23 18:12:12 -04:00
Zihao Mu
b6b5c27cec Support for some reduce layers for onnx 2022-03-18 10:19:13 +08:00
rogday
93353aea70
Merge pull request #21522 from rogday:lstm
Fix LSTM support in ONNX

* fix LSTM and add peephole support

* disable old tests

* turn lambdas into functions

* more hacks for  c++98

* add assertions

* slice fixes

* backport of cuda-related fixes

* address review comments
2022-03-15 09:14:05 +03:00
Alexander Alekhin
901e0ddfe4 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2022-03-05 19:46:28 +00:00
Alexander Alekhin
5cc27fd3b5 Merge pull request #21542 from rogday:split_expand 2022-02-28 22:38:24 +00:00
Egor Smirnov
375fe81311 fix slice and expand 2022-02-28 17:18:07 +03:00
Maksim Shabunin
a251474144 Update filters in ONNX tests 2022-02-15 11:56:28 +03:00
Maksim Shabunin
45cbf70265 Update filters in ONNX tests 2022-02-14 17:16:49 +03:00
Alexander Alekhin
19926e2979 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2022-02-11 17:32:37 +00:00
Alexander Alekhin
effce0573b dnn: drop legacy Inference Engine NN builder API 2022-02-10 11:55:24 +00:00
Alexander Alekhin
57d3002ee1 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2022-02-06 16:10:43 +00:00
Alexander Alekhin
1f70d4e2a5 dnn(test): re-enable ONNX split tests for OpenVINO 2022-02-06 10:36:15 +00:00
Alexander Alekhin
870c8d3c4e dnn(test): fix int8 tolerances 2022-01-31 12:54:01 +00:00
Alexander Alekhin
d573472a86 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2022-01-31 12:53:45 +00:00
Alexander Alekhin
a7e6a1059c dnn(test): fix outputs handling in ONNX conformance
- ONNX output is 1 tensor per defined output instead of N tensors from outputs of "output" layer
2022-01-29 23:29:51 +00:00
Zihao Mu
9e3ba487fa
Merge pull request #21518 from zihaomu:resize_onnx_opset13
Add resize layer compatible with ONNX opset13 version
2022-01-28 17:55:01 +03:00
Alexander Alekhin
9699e2b483 dnn(onnx): handle non-default ONNX domains
- re-enable quantized models tests
2021-12-25 01:38:52 +00:00
Alexander Alekhin
217fea9667 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2021-12-24 16:48:07 +00:00
Alexander Alekhin
6e299b582a dnn(test): decompose 'DynamicAxes' test 2021-12-23 00:47:27 +00:00
Alexander Alekhin
9777fbacf6 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2021-12-22 15:57:02 +00:00
Alexander Alekhin
c78a8dfd2d fix 4.x links 2021-12-22 13:24:30 +00:00
Alexander Alekhin
b1a57c4cb2 fix 3.4 links 2021-12-22 12:38:21 +00:00
rogday
0a178a687a fix const/x in Div 2021-12-20 19:53:37 +03:00
Alexander Alekhin
80492d663e Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2021-12-18 16:19:06 +00:00
Smirnov Egor
71a22e45b0 add celu, hardsigmoid, selu, thresholdedrelu layers 2021-12-18 03:19:54 +03:00
Alexander Alekhin
04ee99f1a3 Merge pull request #21282 from alalek:dnn_test_vulkan_skip 2021-12-17 19:39:35 +00:00
Smirnov Egor
1bd382c1d0 Add acos, acosh, asin, asinh, atan, atanh, cos, cosh, erf, hardswish, sin, sinh, softplus, softsign, tan layers 2021-12-17 18:19:40 +03:00
Alexander Alekhin
249c508126 dnn(test): skip failed tests on Vulkan backend 2021-12-17 14:01:04 +00:00
Smirnov Egor
fec2c7e715 fix Flatten layer 2021-12-17 16:29:56 +03:00
Gruhuang
b4bb98ea60
Merge pull request #21268 from pccvlab:tf_Arg
add argmax and argmin parsing for tensorflow

* add argmax and argmin for tf

* remove whitespace

* remove whitespace

* remove static_cast

Signed-off-by: Crayon-new <1349159541@qq.com>
2021-12-16 17:06:02 +00:00
Alexander Alekhin
6d677bbd63 dnn(test): update ONNX conformance filters (4.x) 2021-12-16 12:09:31 +00:00
Alexander Alekhin
299f9837b7 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2021-12-15 16:38:56 +00:00
Alexander Alekhin
f3ba88c87c dnn(test): update ONNX conformance filters 2021-12-15 12:53:53 +00:00
Smirnov Egor
e97c7e042b fix max_unpool missing attributes, add default value of keepdims in reducemean/max/sum, add support for keepdims=true in full reduction branch, add new padding type to Pad 2021-12-14 22:09:27 +03:00
rogday
4827fe86bb
Merge pull request #21088 from rogday:onnx_tests
Onnx conformance tests

* Add ONNX conformance tests

* dnn(test): add filters for ONNX conformance tests

* add filter lists for OCV backend

* address review comments

* move test_clip_inbounds to all_denylist

* address clip issue

* avoid empty lists

Co-authored-by: Alexander Alekhin <alexander.a.alekhin@gmail.com>
2021-12-14 16:58:06 +00:00
cqn2219076254
252ce0b581 add square layer 2021-12-13 21:43:13 +08:00
Gruhuang
17bc8565f6
Merge pull request #21154 from pccvlab:MatMul_with_two_inputs
Add BatchMatMul layer support for tf_importer

* two inputs

* support batch_matmul

* refactor: remove useless code

* refactor: decrease nesting
2021-12-10 14:44:27 +03:00
Smirnov Egor
e608adea60 add ArgMax and ArgMin layers 2021-12-06 20:49:54 +03:00
Alexander Alekhin
0835611d3a dnn(test): re-enable tests which works with OpenVINO 2021.4.x 2021-12-03 14:01:30 +00:00
Alexander Alekhin
8b4fa2605e Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2021-12-03 12:32:49 +00:00
Alexander Alekhin
bd396e1fd5 dnn(test): re-enable tests which works with OpenVINO 2021.4.x (3.4) 2021-12-02 11:30:45 +00:00
Alexander Alekhin
f55c9ed1ba dnn(test): drop non OCV/CPU cases for Int8
- zero code coverage and up to x3-x8 tests slowdown
- implementation executes OCV/CPU in all cases
- wrong skip conditions
2021-12-02 06:27:10 +00:00
Alexander Alekhin
58dc397930 dnn(test): add two_inputs test with FP32/U8 data types
- remove similar test from IE scope under HAVE_INF_ENGINE
2021-11-28 07:44:04 +00:00
Alexander Alekhin
31b2d6be75 dnn(test): update InferenceEngine tests (4.x) 2021-11-27 18:16:52 +00:00
Alexander Alekhin
57ee14d62d Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2021-11-27 16:50:55 +00:00
Alexander Alekhin
985aa0423d dnn(test): update InferenceEngine tests 2021-11-26 18:46:26 +00:00
Hanxi Guo
1fcf7ba5bc
Merge pull request #20406 from MarkGHX:gsoc_2021_webnn
[GSoC] OpenCV.js: Accelerate OpenCV.js DNN via WebNN

* Add WebNN backend for OpenCV DNN Module

Update dnn.cpp

Update dnn.cpp

Update dnn.cpp

Update dnn.cpp

Add WebNN head files into OpenCV 3rd partiy files

Create webnn.hpp

update cmake

Complete README and add OpenCVDetectWebNN.cmake file

add webnn.cpp

Modify webnn.cpp

Can successfully compile the codes for creating a MLContext

Update webnn.cpp

Update README.md

Update README.md

Update README.md

Update README.md

Update cmake files and

update README.md

Update OpenCVDetectWebNN.cmake and README.md

Update OpenCVDetectWebNN.cmake

Fix OpenCVDetectWebNN.cmake and update README.md

Add source webnn_cpp.cpp and libary libwebnn_proc.so

Update dnn.cpp

Update dnn.cpp

Update dnn.cpp

Update dnn.cpp

update dnn.cpp

update op_webnn

update op_webnn

Update op_webnn.hpp

update op_webnn.cpp & hpp

Update op_webnn.hpp

Update op_webnn

update the skeleton

Update op_webnn.cpp

Update op_webnn

Update op_webnn.cpp

Update op_webnn.cpp

Update op_webnn.hpp

update op_webnn

update op_webnn

Solved the problems of released variables.

Fixed the bugs in op_webnn.cpp

Implement op_webnn

Implement Relu by WebNN API

Update dnn.cpp for better test

Update elementwise_layers.cpp

Implement ReLU6

Update elementwise_layers.cpp

Implement SoftMax using WebNN API

Implement Reshape by WebNN API

Implement PermuteLayer by WebNN API

Implement PoolingLayer using WebNN API

Update pooling_layer.cpp

Update pooling_layer.cpp

Update pooling_layer.cpp

Update pooling_layer.cpp

Update pooling_layer.cpp

Update pooling_layer.cpp

Implement poolingLayer by WebNN API and add more detailed logs

Update dnn.cpp

Update dnn.cpp

Remove redundant codes and add more logs for poolingLayer

Add more logs in the pooling layer implementation

Fix the indent issue and resolve the compiling issue

Fix the build problems

Fix the build issue

FIx the build issue

Update dnn.cpp

Update dnn.cpp

* Fix the build issue

* Implement BatchNorm Layer by WebNN API

* Update convolution_layer.cpp

This is a temporary file for Conv2d layer implementation

* Integrate some general functions into op_webnn.cpp&hpp

* Update const_layer.cpp

* Update convolution_layer.cpp

Still have some bugs that should be fixed.

* Update conv2d layer and fc layer

still have some problems to be fixed.

* update constLayer, conv layer, fc layer

There are still some bugs to be fixed.

* Fix the build issue

* Update concat_layer.cpp

Still have some bugs to be fixed.

* Update conv2d layer, fully connected layer and const layer

* Update convolution_layer.cpp

* Add OpenCV.js DNN module WebNN Backend (both using webnn-polyfill and electron)

* Delete bib19450.aux

* Add WebNN backend for OpenCV DNN Module

Update dnn.cpp

Update dnn.cpp

Update dnn.cpp

Update dnn.cpp

Add WebNN head files into OpenCV 3rd partiy files

Create webnn.hpp

update cmake

Complete README and add OpenCVDetectWebNN.cmake file

add webnn.cpp

Modify webnn.cpp

Can successfully compile the codes for creating a MLContext

Update webnn.cpp

Update README.md

Update README.md

Update README.md

Update README.md

Update cmake files and

update README.md

Update OpenCVDetectWebNN.cmake and README.md

Update OpenCVDetectWebNN.cmake

Fix OpenCVDetectWebNN.cmake and update README.md

Add source webnn_cpp.cpp and libary libwebnn_proc.so

Update dnn.cpp

Update dnn.cpp

Update dnn.cpp

Update dnn.cpp

update dnn.cpp

update op_webnn

update op_webnn

Update op_webnn.hpp

update op_webnn.cpp & hpp

Update op_webnn.hpp

Update op_webnn

update the skeleton

Update op_webnn.cpp

Update op_webnn

Update op_webnn.cpp

Update op_webnn.cpp

Update op_webnn.hpp

update op_webnn

update op_webnn

Solved the problems of released variables.

Fixed the bugs in op_webnn.cpp

Implement op_webnn

Implement Relu by WebNN API

Update dnn.cpp for better test

Update elementwise_layers.cpp

Implement ReLU6

Update elementwise_layers.cpp

Implement SoftMax using WebNN API

Implement Reshape by WebNN API

Implement PermuteLayer by WebNN API

Implement PoolingLayer using WebNN API

Update pooling_layer.cpp

Update pooling_layer.cpp

Update pooling_layer.cpp

Update pooling_layer.cpp

Update pooling_layer.cpp

Update pooling_layer.cpp

Implement poolingLayer by WebNN API and add more detailed logs

Update dnn.cpp

Update dnn.cpp

Remove redundant codes and add more logs for poolingLayer

Add more logs in the pooling layer implementation

Fix the indent issue and resolve the compiling issue

Fix the build problems

Fix the build issue

FIx the build issue

Update dnn.cpp

Update dnn.cpp

* Fix the build issue

* Implement BatchNorm Layer by WebNN API

* Update convolution_layer.cpp

This is a temporary file for Conv2d layer implementation

* Integrate some general functions into op_webnn.cpp&hpp

* Update const_layer.cpp

* Update convolution_layer.cpp

Still have some bugs that should be fixed.

* Update conv2d layer and fc layer

still have some problems to be fixed.

* update constLayer, conv layer, fc layer

There are still some bugs to be fixed.

* Update conv2d layer, fully connected layer and const layer

* Update convolution_layer.cpp

* Add OpenCV.js DNN module WebNN Backend (both using webnn-polyfill and electron)

* Update dnn.cpp

* Fix Error in dnn.cpp

* Resolve duplication in conditions in convolution_layer.cpp

* Fixed the issues in the comments

* Fix building issue

* Update tutorial

* Fixed comments

* Address the comments

* Update CMakeLists.txt

* Offer more accurate perf test on native

* Add better perf tests for both native and web

* Modify per tests for better results

* Use more latest version of Electron

* Support latest WebNN Clamp op

* Add definition of HAVE_WEBNN macro

* Support group convolution

* Implement Scale_layer using WebNN

* Add Softmax option for native classification example

* Fix comments

* Fix comments
2021-11-23 21:15:31 +00:00
Alexander Alekhin
394e640909 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2021-11-13 15:11:30 +00:00
Alexander Alekhin
8041ab8a61
Merge pull request #21025 from alalek:issue_21004
* dnn(ocl4dnn): fix LRN layer accuracy problems

- FP16 intermediate computation is not accurate and may provide NaN values

* dnn(test): update tolerance for FP16
2021-11-12 01:54:07 +03:00
ZaKiiiiiiiii
98b6ce353c
Merge pull request #20904 from Crayon-new:fix_bug_in_maxLayer
fix bug: wrong output dimension when "keep_dims" is false in pooling layer.

* fix bug in max layer

* code align

* delete permute layer and add test case

* add name assert

* check other cases

* remove c++11 features

* style:add "const" remove assert

* style:sanitize file names
2021-11-09 19:24:04 +03:00
Alexander Alekhin
562f2375c5 dnn(test): skip tests with high memory usage
- 32-bit configuration may fail due to memory fragmentation
2021-11-04 13:26:33 +00:00
Alexander Alekhin
ec10f2e72b Merge pull request #20877 from rogday:simple_layers 2021-10-20 17:00:38 +00:00
Alexander Alekhin
31c40fa4cc Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2021-10-15 13:35:03 +00:00
Smirnov Egor
1feb3838b5 add Ceil, Floor, Log, Round, Sqrt, Not, Equal, Less, Greater 2021-10-15 16:02:46 +03:00
Smirnov Egor
a9d7b6eab7 fix const - input and remove unimplemented function 2021-10-11 18:58:10 +03:00
Alexander Alekhin
4672dbda2a Merge pull request #20818 from rogday:yolov4x_mish_cuda 2021-10-08 19:12:43 +00:00
Smirnov Egor
9c84749e2c backport YOLOv4x-mish new_coords CUDA implementation 2021-10-08 14:14:49 +03:00
Alexander Alekhin
1a29ea1038 Merge pull request #20829 from alalek:dnn_ocl_skip_int8_tests 2021-10-06 22:46:21 +00:00
Alexander Alekhin
94e92cd6c0 dnn(ocl): skip int8 tests due to memory access issues 2021-10-06 21:27:18 +00:00
Smirnov Egor
2221dcc9f2 add SoftNMS implementation 2021-10-06 21:31:45 +03:00
Jebastin Nadar
cce78cc5e2
Merge pull request #20535 from SamFC10:onnx-q
dnn : int8 quantized layers support in onnx importer

* added quantized layers support in onnx importer

* added more cases in eltwise node, some more checks

* added tests for quantized nodes

* relax thresholds for failed tests, address review comments

* refactoring based on review comments

* added support for unsupported cases and pre-quantized resnet50 test

* relax thresholds due to int8 resize layer
2021-10-04 18:07:38 +00:00
Zihao Mu
9085b933d8
Merge pull request #20702 from zihaomu:tf_expand_dim_layer
Add ExpandDims layer of tf_importer.cpp

* Add ExpandDims to tf_importer.

* add -1 expand test case.

* Support different dimensions of input.

* Compatible with 5-dimensional NDHWC data

* Code align

* support 3-dim input.

* 3-dim bug fixed.

* fixing error of code format.
2021-10-04 16:37:38 +00:00
Alexander Alekhin
24fcb7f813 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2021-09-25 17:50:00 +00:00
rogday
38b9ec7a18
Merge pull request #20682 from rogday:min
* Add Min layer to CPU, OpenCL, Halide, Inference Engine, NGraph and CUDA

* fix indentation

* add min to fusion and halide tests; fix doc
2021-09-22 15:17:37 +03:00
SamFC10
9c5d7716e2 fix for unsqueeze opset version 13 2021-09-17 17:40:57 +05:30
rogday
c410d7a97d
Merge pull request #20671 from rogday:yolov4x-mish
Add support for YOLOv4x-mish

* backport to 3.4 for supporting yolov4x-mish

* add YOLOv4x-mish test

* address review comments

Co-authored-by: Guo Xu <guoxu@1school.com.cn>
2021-09-14 17:49:49 +00:00
Alexander Alekhin
c3ac834526 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2021-09-11 21:27:26 +00:00
Zihao Mu
51b03b87e6 BiasAdd could load Const from second place. 2021-09-11 15:34:41 +00:00
rogday
d31b93b513
Merge pull request #20674 from rogday:prelu_slope
Fix PReLU negative slope access pattern

* fix prelu negative slope access pattern

* change begin() to ptr()
2021-09-10 11:07:16 +00:00