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nodes/vp_secondary_infer_node.h

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+
+
+#pragma once
+
+#include "vp_infer_node.h"
+
+namespace vp_nodes {
+    // secondary infer node, it is the base class of infer node which MUST infer on small cropped image.
+    // note: detector such as yolo can be also applied on small cropped images.
+    class vp_secondary_infer_node: public vp_infer_node {
+    private:
+    protected:
+        // define how to prepare data
+        virtual void prepare(const std::vector<std::shared_ptr<vp_objects::vp_frame_meta>>& frame_meta_with_batch, std::vector<cv::Mat>& mats_to_infer) override;
+        bool need_apply(int primary_class_id, int target_width, int target_height);
+    public:
+        vp_secondary_infer_node(std::string node_name, 
+                            std::string model_path, 
+                            std::string model_config_path = "", 
+                            std::string labels_path = "", 
+                            int input_width = 640, 
+                            int input_height = 640, 
+                            int batch_size = 1,
+                            std::vector<int> p_class_ids_applied_to = std::vector<int>(),
+                            int min_width_applied_to = 0,
+                            int min_height_applied_to = 0,
+                            int crop_padding = 10,
+                            float scale = 1.0,
+                            cv::Scalar mean = cv::Scalar(123.675, 116.28, 103.53),  // imagenet dataset
+                            cv::Scalar std = cv::Scalar(1),
+                            bool swap_rb = true,
+                            bool swap_chn = false);
+        ~vp_secondary_infer_node();
+
+        // we do secondary infer logic only if the primary class-id of target is in this vector.
+        // not all targets in frame should be handled by vp_secondary_infer_node.
+        std::vector<int> p_class_ids_applied_to;
+        int crop_padding;
+        // min height of target to be handled by vp_secondary_infer_node, 0 means no restriction
+        int min_height_applied_to = 0;
+        // min width of target to be handled by vp_secondary_infer_node，0 means no restriction
+        int min_width_applied_to = 0;
+    };
+
+}