COMPMID-578: Implement FAST corners for CL/NEON

Change-Id: Ifa74e2bf05546de9a49aa185e22fba50438d8ad6
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/113946
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Pablo Tello <pablo.tello@arm.com>

1 files changed, 118 insertions, 0 deletions

diff --git a/tests/validation/NEON/FastCorners.cpp b/tests/validation/NEON/FastCorners.cpp
new file mode 100644
index 0000000000..4d42aa5349
--- /dev/null
+++ b/tests/validation/NEON/FastCorners.cpp
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2017-2018 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "arm_compute/core/Types.h"
+#include "arm_compute/runtime/NEON/functions/NEFastCorners.h"
+#include "arm_compute/runtime/Tensor.h"
+#include "arm_compute/runtime/TensorAllocator.h"
+#include "tests/NEON/Accessor.h"
+#include "tests/NEON/ArrayAccessor.h"
+#include "tests/PaddingCalculator.h"
+#include "tests/datasets/ShapeDatasets.h"
+#include "tests/framework/Asserts.h"
+#include "tests/framework/Macros.h"
+#include "tests/framework/datasets/Datasets.h"
+#include "tests/validation/FastValidation.h"
+#include "tests/validation/fixtures/FastCornersFixture.h"
+
+namespace arm_compute
+{
+namespace test
+{
+namespace validation
+{
+namespace
+{
+/* Radius of the Bresenham circle around the candidate point */
+const unsigned int bresenham_radius = 3;
+/* Allowed percentage of keypoints missing for target */
+const float allowed_missing = 10.f;
+/* Allowed percentage of keypoints mismatching between target and reference */
+const float allowed_mismatching = 10.f;
+/* Tolerance used to compare corner strengths */
+const AbsoluteTolerance<float> tolerance(0.5f);
+} // namespace
+
+TEST_SUITE(NEON)
+TEST_SUITE(FastCorners)
+
+DATA_TEST_CASE(Configuration, framework::DatasetMode::ALL, combine(combine(combine(concat(datasets::Small2DShapes(), datasets::Large2DShapes()),
+                                                                                   framework::dataset::make("Format", Format::U8)),
+                                                                           framework::dataset::make("SuppressNonMax", { false, true })),
+                                                                   framework::dataset::make("BorderMode", BorderMode::UNDEFINED)),
+               shape, format, suppress_nonmax, border_mode)
+{
+    std::mt19937                           gen(library->seed());
+    std::uniform_int_distribution<uint8_t> int_dist(0, 255);
+    std::uniform_real_distribution<float>  real_dist(0, 255);
+
+    const uint8_t constant_border_value = int_dist(gen);
+    const float   threshold             = real_dist(gen);
+
+    // Create tensors
+    Tensor src = create_tensor<Tensor>(shape, data_type_from_format(format));
+    src.info()->set_format(format);
+
+    ARM_COMPUTE_EXPECT(src.info()->is_resizable(), framework::LogLevel::ERRORS);
+
+    KeyPointArray corners;
+
+    // Create and configure function
+    NEFastCorners fast_corners;
+    fast_corners.configure(&src, threshold, suppress_nonmax, &corners, border_mode, constant_border_value);
+
+    // Validate padding
+    PaddingCalculator calculator(shape.x(), 1); // elems_processed
+
+    calculator.set_border_size(bresenham_radius);
+    calculator.set_access_offset(-bresenham_radius);
+    calculator.set_accessed_elements(8); // elems_read
+
+    validate(src.info()->padding(), calculator.required_padding());
+}
+
+template <typename T>
+using NEFastCornersFixture = FastCornersValidationFixture<Tensor, Accessor, KeyPointArray, NEFastCorners, T>;
+
+FIXTURE_DATA_TEST_CASE(RunSmall, NEFastCornersFixture<uint8_t>, framework::DatasetMode::PRECOMMIT, combine(combine(combine(datasets::Small2DShapes(), framework::dataset::make("Format", Format::U8)),
+                                                                                                                   framework::dataset::make("SuppressNonMax", { false, true })),
+                                                                                                           framework::dataset::make("BorderMode", BorderMode::UNDEFINED)))
+{
+    // Validate output
+    ArrayAccessor<KeyPoint> array(_target);
+    fast_validate_keypoints(array.buffer(), array.buffer() + array.num_values(), _reference.begin(), _reference.end(), tolerance, allowed_missing, allowed_mismatching);
+}
+FIXTURE_DATA_TEST_CASE(RunLarge, NEFastCornersFixture<uint8_t>, framework::DatasetMode::NIGHTLY, combine(combine(combine(datasets::Large2DShapes(), framework::dataset::make("Format", Format::U8)),
+                                                                                                                 framework::dataset::make("SuppressNonMax", { false, true })),
+                                                                                                         framework::dataset::make("BorderMode", BorderMode::UNDEFINED)))
+{
+    // Validate output
+    ArrayAccessor<KeyPoint> array(_target);
+    fast_validate_keypoints(array.buffer(), array.buffer() + array.num_values(), _reference.begin(), _reference.end(), tolerance, allowed_missing, allowed_mismatching);
+}
+
+TEST_SUITE_END()
+TEST_SUITE_END()
+} // namespace validation
+} // namespace test
+} // namespace arm_compute