COMPMID-2246: Implement NEBoundingBoxTransform.

Change-Id: I69faa21ccdc295f5369450a12e6e217d873349e3
Signed-off-by: Pablo Tello <pablo.tello@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1854
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>

2 files changed, 94 insertions, 0 deletions

diff --git a/arm_compute/core/NEON/NEKernels.h b/arm_compute/core/NEON/NEKernels.h
index 5e3389744f..f86a1d0507 100644
--- a/arm_compute/core/NEON/NEKernels.h
+++ b/arm_compute/core/NEON/NEKernels.h
@@ -37,6 +37,7 @@
 #include "arm_compute/core/NEON/kernels/NEBitwiseNotKernel.h"
 #include "arm_compute/core/NEON/kernels/NEBitwiseOrKernel.h"
 #include "arm_compute/core/NEON/kernels/NEBitwiseXorKernel.h"
+#include "arm_compute/core/NEON/kernels/NEBoundingBoxTransformKernel.h"
 #include "arm_compute/core/NEON/kernels/NEBox3x3Kernel.h"
 #include "arm_compute/core/NEON/kernels/NECannyEdgeKernel.h"
 #include "arm_compute/core/NEON/kernels/NEChannelCombineKernel.h"
diff --git a/arm_compute/core/NEON/kernels/NEBoundingBoxTransformKernel.h b/arm_compute/core/NEON/kernels/NEBoundingBoxTransformKernel.h
new file mode 100644
index 0000000000..0f0a1f6a2d
--- /dev/null
+++ b/arm_compute/core/NEON/kernels/NEBoundingBoxTransformKernel.h
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2019 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.
+ */
+#ifndef __ARM_COMPUTE_NEBOUNDINGBOXTRANSFORMKERNEL_H__
+#define __ARM_COMPUTE_NEBOUNDINGBOXTRANSFORMKERNEL_H__
+
+#include "arm_compute/core/NEON/INEKernel.h"
+
+namespace arm_compute
+{
+class ITensor;
+
+/** Interface for the bounding box kernel */
+class NEBoundingBoxTransformKernel : public INEKernel
+{
+public:
+    const char *name() const override
+    {
+        return "NEBoundingBoxTransformKernel";
+    }
+
+    /** Default constructor */
+    NEBoundingBoxTransformKernel();
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NEBoundingBoxTransformKernel(const NEBoundingBoxTransformKernel &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NEBoundingBoxTransformKernel &operator=(const NEBoundingBoxTransformKernel &) = delete;
+    /** Allow instances of this class to be moved */
+    NEBoundingBoxTransformKernel(NEBoundingBoxTransformKernel &&) = default;
+    /** Allow instances of this class to be moved */
+    NEBoundingBoxTransformKernel &operator=(NEBoundingBoxTransformKernel &&) = default;
+    /** Default destructor */
+    ~NEBoundingBoxTransformKernel() = default;
+
+    /** Set the input and output tensors.
+     *
+     * @param[in]  boxes      Source tensor. Bounding box proposals in pixel coordinates. Size(M, 4), format [x1, y1, x2, y2]. Data types supported: F16/F32.
+     * @param[out] pred_boxes Destination tensor. Pixel coordinates of the transformed bounding boxes. Size (M, 4*K), format [x1, y1, x2, y2]. Data types supported: Same as @p input
+     * @param[in]  deltas     Bounding box translations and scales. Size (M, 4*K), format [dx, dy, dw, dh], K  is the number of classes. Data types supported: Same as @p input
+     * @param[in]  info       Contains BoundingBox operation information described in @ref BoundingBoxTransformInfo.
+     *
+     * @note Only single image prediction is supported. Height and Width (and scale) of the image will be contained in the BoundingBoxTransformInfo struct.
+     *
+     */
+    void configure(const ITensor *boxes, ITensor *pred_boxes, const ITensor *deltas, const BoundingBoxTransformInfo &info);
+
+    /** Static function to check if given info will lead to a valid configuration of @ref CLBoundingBoxTransform
+     *
+     * @param[in] boxes      Source tensor info. Bounding box proposals in pixel coordinates. Size(M, 4), format [x1, y1, x2, y2]. Data types supported: F16/F32.
+     * @param[in] pred_boxes Destination tensor info. Pixel coordinates of the transformed bounding boxes. Size (M, 4*K), format [x1, y1, x2, y2]. Data types supported: Same as @p input
+     * @param[in] deltas     Bounding box translations and scales. Size (M, 4*K), format [dx, dy, dw, dh], K  is the number of classes. Data types supported: Same as @p input
+     * @param[in] info       Contains BoundingBox operation information described in @ref BoundingBoxTransformInfo.
+     *
+     * @note Only single image prediction is supported. Height and Width (and scale) of the image will be contained in the BoundingBoxTransformInfo struct.
+     *
+     * @return a Status
+     */
+    static Status validate(const ITensorInfo *boxes, const ITensorInfo *pred_boxes, const ITensorInfo *deltas, const BoundingBoxTransformInfo &info);
+
+    // Inherited methods overridden:
+    void run(const Window &window, const ThreadInfo &info) override;
+
+private:
+    template <typename T>
+    void internal_run(const Window &window, const ThreadInfo &info);
+
+    const ITensor           *_boxes;
+    ITensor                 *_pred_boxes;
+    const ITensor           *_deltas;
+    BoundingBoxTransformInfo _bbinfo;
+};
+} // namespace arm_compute
+#endif /*__ARM_COMPUTE_NEBOUNDINGBOXTRANSFORMKERNEL_H__ */