diff --git a/arm_compute/core/Helpers.h b/arm_compute/core/Helpers.h
index 3575fcf..e01e4ba 100644
--- a/arm_compute/core/Helpers.h
+++ b/arm_compute/core/Helpers.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2017 ARM Limited.
+ * Copyright (c) 2016, 2018 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -361,6 +361,17 @@
 
 /** Calculate the maximum window for a given tensor shape and border setting
  *
+ * @param[in] valid_region Valid region object defining the shape of the tensor space for which the window is created.
+ * @param[in] steps        (Optional) Number of elements processed for each step.
+ * @param[in] skip_border  (Optional) If true exclude the border region from the window.
+ * @param[in] border_size  (Optional) Border size.
+ *
+ * @return The maximum window the kernel can be executed on.
+ */
+Window calculate_max_window(const ValidRegion &valid_region, const Steps &steps = Steps(), bool skip_border = false, BorderSize border_size = BorderSize());
+
+/** Calculate the maximum window for a given tensor shape and border setting
+ *
  * @param[in] info        Tensor info object defining the shape of the object for which the window is created.
  * @param[in] steps       (Optional) Number of elements processed for each step.
  * @param[in] skip_border (Optional) If true exclude the border region from the window.
@@ -368,18 +379,45 @@
  *
  * @return The maximum window the kernel can be executed on.
  */
-Window calculate_max_window(const ITensorInfo &info, const Steps &steps = Steps(), bool skip_border = false, BorderSize border_size = BorderSize());
+inline Window calculate_max_window(const ITensorInfo &info, const Steps &steps = Steps(), bool skip_border = false, BorderSize border_size = BorderSize())
+{
+    return calculate_max_window(info.valid_region(), steps, skip_border, border_size);
+}
+
+/** Calculate the maximum window used by a horizontal kernel for a given tensor shape and border setting
+ *
+ * @param[in] valid_region Valid region object defining the shape of the tensor space for which the window is created.
+ * @param[in] steps        (Optional) Number of elements processed for each step.
+ * @param[in] skip_border  (Optional) If true exclude the border region from the window.
+ * @param[in] border_size  (Optional) Border size. The border region will be excluded from the window.
+ *
+ * @return The maximum window the kernel can be executed on.
+ */
+Window calculate_max_window_horizontal(const ValidRegion &valid_region, const Steps &steps = Steps(), bool skip_border = false, BorderSize border_size = BorderSize());
 
 /** Calculate the maximum window used by a horizontal kernel for a given tensor shape and border setting
  *
  * @param[in] info        Tensor info object defining the shape of the object for which the window is created.
  * @param[in] steps       (Optional) Number of elements processed for each step.
  * @param[in] skip_border (Optional) If true exclude the border region from the window.
- * @param[in] border_size (Optional) Border size. The border region will be excluded from the window.
+ * @param[in] border_size (Optional) Border size.
  *
  * @return The maximum window the kernel can be executed on.
  */
-Window calculate_max_window_horizontal(const ITensorInfo &info, const Steps &steps = Steps(), bool skip_border = false, BorderSize border_size = BorderSize());
+inline Window calculate_max_window_horizontal(const ITensorInfo &info, const Steps &steps = Steps(), bool skip_border = false, BorderSize border_size = BorderSize())
+{
+    return calculate_max_window_horizontal(info.valid_region(), steps, skip_border, border_size);
+}
+
+/** Calculate the maximum window for a given tensor shape and border setting. The window will also includes the border.
+ *
+ * @param[in] valid_region Valid region object defining the shape of the tensor space for which the window is created.
+ * @param[in] steps        (Optional) Number of elements processed for each step.
+ * @param[in] border_size  (Optional) Border size. The border region will be included in the window.
+ *
+ * @return The maximum window the kernel can be executed on.
+ */
+Window calculate_max_enlarged_window(const ValidRegion &valid_region, const Steps &steps = Steps(), BorderSize border_size = BorderSize());
 
 /** Calculate the maximum window for a given tensor shape and border setting. The window will also includes the border.
  *
@@ -389,7 +427,10 @@
  *
  * @return The maximum window the kernel can be executed on.
  */
-Window calculate_max_enlarged_window(const ITensorInfo &info, const Steps &steps = Steps(), BorderSize border_size = BorderSize());
+inline Window calculate_max_enlarged_window(const ITensorInfo &info, const Steps &steps = Steps(), BorderSize border_size = BorderSize())
+{
+    return calculate_max_enlarged_window(info.valid_region(), steps, border_size);
+}
 
 /** Intersect multiple valid regions.
  *