opencv/modules/dnn/include/opencv2
Yuantao Feng 347d673a87
Merge pull request #23279 from fengyuentau:add_topk
dnn: add ONNX TopK #23279

Merge with https://github.com/opencv/opencv_extra/pull/1200

Partially fixes #22890 and #20258

To-do:

- [x] TopK forward impl
- [x] add tests
- [x] support Opset 1 & 10 if possible
- [ ] ~Support other backends~ (TopK has two outputs, which is not supported by other backends, such as openvino)


Perf:

M1 (time in millisecond)

| input shape     | axis | dnn  | ort  |
| --------------- | ---- | ---- | ---- |
| (1000, 100)     | 0    | 1.68 | 4.07 |
| (1000, 100) K5  | 0    | 1.13 | 0.12 |
| (1000, 100)     | 1    | 0.96 | 0.77 |
| (100, 100, 100) | 0    | 10.00 | 31.13 |
| (100, 100, 100) | 1    | 7.33 | 9.17 |
| (100, 100, 100) | 2    | 7.52 | 9.48 |

M2 (time in milisecond)

| input shape     | axis | dnn  | ort  |
| --------------- | ---- | ---- | ---- |
| (1000, 100)     | 0    | 0.76 | 2.44 |
| (1000, 100) K5 | 0 | 0.68 | 0.07 |
| (1000, 100)     | 1    | 0.41 | 0.50 |
| (100, 100, 100) | 0    | 4.83 | 17.52|
| (100, 100, 100) | 1    | 3.60 | 5.08 |
| (100, 100, 100) | 2    | 3.73 | 5.10 |

ONNXRuntime performance testing script: https://gist.github.com/fengyuentau/a119f94fd16721ec9974b8c7b0a45d4c

### Pull Request Readiness Checklist

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
2024-08-21 17:03:24 +03:00
..
dnn Merge pull request #23279 from fengyuentau:add_topk 2024-08-21 17:03:24 +03:00
dnn.hpp Update documentation and samples 2018-08-17 14:21:29 +03:00