Merge branch 'feat/optimize_ai_example' into 'master'

feat(ai_example): update ESP-DL version and optimize model ram usage

See merge request ae_group/esp-iot-solution!1298

Author: YanKE01

examples/ai/esp_dl/human_activity_recognition/main/human_activity_recognition.cpp

@@ -79,6 +79,7 @@ HumanActivityRecognition::HumanActivityRecognition(const char *model_name,
                                                    size_t feature_size)
 {
     m_model = new dl::Model(model_name, fbs::MODEL_LOCATION_IN_FLASH_PARTITION);
+    m_model->minimize();
     m_preprocessor = new DataPreprocessor(m_model, mean, std, feature_size);
     m_postprocessor = new DataPostprocessor(m_model);
     m_feature_size = feature_size;

examples/ai/esp_dl/human_activity_recognition/main/idf_component.yml

@@ -1,3 +1,3 @@
 dependencies:
   idf: '>=5.3'
-  espressif/esp-dl: "=3.1.0"
+  espressif/esp-dl: "=3.1.3"

examples/ai/esp_dl/touchpad_digit_recognition/main/idf_component.yml

@@ -16,4 +16,4 @@ dependencies:
   #   public: true
   espressif/touch_sensor_lowlevel: ^0.6.0
   espressif/button: "^4.0.0"
-  espressif/esp-dl: "=3.1.0"
+  espressif/esp-dl: "=3.1.3"

examples/ai/esp_dl/touchpad_digit_recognition/main/touch_digit_recognition.cpp

@@ -60,6 +60,7 @@ int DataPostprocessor::process()
 TouchDigitRecognition::TouchDigitRecognition(const char* model_name, size_t feature_size)
 {
     m_model = new dl::Model(model_name, fbs::MODEL_LOCATION_IN_FLASH_PARTITION);
+    m_model->minimize();
     m_preprocessor = new DataPreprocessor(m_model, feature_size);
     m_postprocessor = new DataPostprocessor(m_model);
     m_feature_size = feature_size;