Open Source Computer Vision Library
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Dmitry Kurtaev fa56623458
Merge pull request #24463 from dkurt:dnn_shared_nodes_fusion
DNN graph fusion with shared nodes #24463

### Pull Request Readiness Checklist

For now, nodes from matched pattern are removed during the matching process so if nodes are used in similar subgraph, they cannot be found.

required for https://github.com/opencv/opencv/pull/24397

**Merge with extra**: https://github.com/opencv/opencv_extra/pull/1115

A part from [model_name ](https://github.com/onnx/models/blob/main/vision/object_detection_segmentation/fcn/model/fcn-resnet101-11.onnx) with two Resize subgraphs with shared nodes:
![image](https://github.com/opencv/opencv/assets/25801568/611d89d9-12fb-4add-9218-13b10d2c086a)

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [x] There is a reference to the original bug report and related work
- [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [x] The feature is well documented and sample code can be built with the project CMake
2023-11-03 12:34:09 +03:00
.github CI: enable RISC-V for 4.x branch 2023-10-16 09:28:37 +03:00
3rdparty Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2023-10-31 14:52:49 +00:00
apps Add missing <sstream> includes 2023-09-05 22:04:26 +03:00
cmake Merge pull request #23929 from CNClareChen:4.x 2023-10-20 14:20:09 +03:00
data Merge pull request #22727 from su77ungr:patch-1 2022-11-17 06:54:25 +00:00
doc Fixed wrong division operator in py_tutorials doc 2023-10-23 19:41:29 +03:00
include exclude opencv_contrib modules 2020-02-26 15:12:45 +03:00
modules Merge pull request #24463 from dkurt:dnn_shared_nodes_fusion 2023-11-03 12:34:09 +03:00
platforms Merge pull request #24305 from hanliutong:toolchain 2023-09-25 13:06:22 +03:00
samples Clean up the Universal Intrinsic API. 2023-10-13 19:23:30 +08:00
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.gitignore Merge pull request #17165 from komakai:objc-binding 2020-06-08 18:32:53 +00:00
CMakeLists.txt Fix MinGW build issue due to obsensor 2023-11-01 12:18:09 -06:00
CONTRIBUTING.md migration: github.com/opencv/opencv 2016-07-12 12:51:12 +03:00
COPYRIGHT copyright: 2023 (update) 2023-01-09 09:49:22 +00:00
LICENSE Merge pull request #18073 from vpisarev:apache2_license 2020-08-17 11:49:11 +00:00
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SECURITY.md Updated PGP key for security reports 2023-04-19 19:16:55 +03:00

OpenCV: Open Source Computer Vision Library

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