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基于改進YOLOv7的變電設備紅外圖像輕量識別檢測方法

來源：電工電氣發布時間：2024-12-02 09:02 瀏覽次數：323

基于改進YOLOv7的變電設備紅外圖像輕量識別檢測方法

陳海波，葉金翔，王生祺

(國網浙江省電力有限公司超高壓分公司，浙江杭州 310000)

摘要：變電站設備準確的紅外熱圖像識別與檢測是其溫度狀態智能分析的先決條件。為了克服復雜背景的干擾，提出了改進的輕量級 YOLOv7 方法，以提高在復雜紅外背景下變電站設備的識別效果。提出的方法引入了高分辨率 P2 檢測頭來改進小目標檢測，無參數注意模塊 SimAM 在復雜紅外背景中更好地提取不同變電設備目標特征，CARAFE 模塊在上采樣過程中減少特征信息的損失，進一步增強算法的魯棒性。實驗及測試結果顯示提出的模型比原始 YOLOv7-tiny 高出 2.6% 檢測精度，實現了 101 FPS(幀數)的實時推理速度，證明了所提出的模型在變電站設備的紅外圖像目標識別方面的優勢，特別是較小的變電設備，并且提出的模型比其他輕量級模型擁有更高的識別檢測精度。

關鍵詞： 變電設備；紅外圖像；目標識別與檢測；計算機視覺；深度學習

中圖分類號：TM63 ；TP391.41 文獻標識碼：B 文章編號：1007-3175(2024)11-0055-06

Lightweight Recognition and Detection Method for Infrared Images of

Substation Equipment Based on Improved YOLOv7

CHEN Hai-bo, YE Jin-xiang, WANG Sheng-qi

（State Grid Zhejiang Electric Power Co., Ltd. Ultra High Voltage Branch, Hangzhou 310000, China）

Abstract: The accurate recognition and detection of infrared thermal images of substation equipment is a prerequisite for intelligent analysis of its thermal status. To address the interference posed by complex backgrounds, this paper presents an improved light weight YOLOv7 method aimed at enhancing the recognition performance of substation equipment under intricate infrared conditions. The proposed approach introduces a high-resolution P2 detection head to improve small target detection, the parameter-free attention module SimAM effectively extracts target features of various substation equipment under the complex infrared backgrounds. Additionally, the CARAFE module minimizes the loss of feature information during the upsampling process, further bolstering the algorithm's robustness. Experimental results demonstrates that the proposed model surpasses the original YOLOv7-tiny by 2.6% in detection accuracy, achieving a real-time inference speed of 101 FPS. It is proved that the proposed model has advantages in infrared image target recognition of substation equipment, especially small substation equipment, and the proposed model has higher recognition and detection accuracy than other lightweight models.

Key words: substation equipment; infrared image; target recognition and detection; computer vision; deep learning

參考文獻

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基于改進YOLOv7的變電設備紅外圖像輕量識別檢測方法