1 files changed, 35 insertions, 0 deletions
diff --git a/arm_compute/core/CL/CLTypes.h b/arm_compute/core/CL/CLTypes.h
index c44e2c4f3f..0f6eb0dfa4 100644
--- a/arm_compute/core/CL/CLTypes.h
+++ b/arm_compute/core/CL/CLTypes.h
@@ -75,5 +75,40 @@ struct CLQuantization
     const ICLFloatArray *scale;  /**< Quantization scale array */
     const ICLInt32Array *offset; /**< Quantization offset array */
 };
+
+/** Internal keypoint structure for Lucas-Kanade Optical Flow */
+struct CLLKInternalKeypoint
+{
+    float x{ 0.f };               /**< x coordinate of the keypoint */
+    float y{ 0.f };               /**< y coordinate of the keypoint */
+    float tracking_status{ 0.f }; /**< the tracking status of the keypoint */
+    float dummy{ 0.f };           /**< Dummy field, to make sure the data structure 128-bit align, so that GPU can use vload4 */
+};
+
+/** Structure for storing Spatial Gradient Matrix and the minimum eigenvalue for each keypoint */
+struct CLCoefficientTable
+{
+    float A11;     /**< iA11 * FLT_SCALE */
+    float A12;     /**< iA11 * FLT_SCALE */
+    float A22;     /**< iA11 * FLT_SCALE */
+    float min_eig; /**< Minimum eigenvalue */
+};
+
+/** Structure for storing ival, ixval and iyval for each point inside the window */
+struct CLOldValue
+{
+    int16_t ival;  /**< ival extracts from old image */
+    int16_t ixval; /**< ixval extracts from scharr Gx image */
+    int16_t iyval; /**< iyval extracts from scharr Gy image */
+    int16_t dummy; /**< Dummy field, to make sure the data structure 128-bit align, so that GPU can use vload4 */
+};
+
+/** Interface for OpenCL Array of Internal Key Points. */
+using ICLLKInternalKeypointArray = ICLArray<CLLKInternalKeypoint>;
+/** Interface for OpenCL Array of Coefficient Tables. */
+using ICLCoefficientTableArray = ICLArray<CLCoefficientTable>;
+/** Interface for OpenCL Array of Old Values. */
+using ICLOldValArray = ICLArray<CLOldValue>;
+
 } // namespace arm_compute
 #endif /* ARM_COMPUTE_CL_TYPES_H */