ROAD SURFACE STATE DETECTION DEVICE

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ROAD SURFACE STATE DETECTION DEVICE

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NAKAMURA SHUNSUKE / ISHIZAKI KEISUKE / KOMADA MASASHI

To provide a road surface state detection device capable of detecting a road surface state in a traveling direction of a vehicle with high accuracy.SOLUTION: A feature amount extraction unit 14 extracts feature amounts from image data acquired by a monocular camera 12 by processing of three schemes: a HOG, a self encoder and a CNN, respectively. A road noise calculation unit 16 compares an actual road noise spectrum obtained by an actual traveling of a vehicle with a calculation road noise spectrum obtained by calculation from the feature amount extracted by each of the three-system processing, and outputs a calculated rode noise spectrum with which an error from the actual rode noise spectrum is minimized as a predicted road noise spectrum.SELECTED DRAWING: Figure 1

【課題】車両の進行方向の路面状態を精度よく検出できる路面状態検出装置を提供する。【解決手段】特徴量抽出部１４は、ＨＯＧ、自己符号化器及びＣＮＮの３方式の処理により、単眼カメラ１２で取得した画像データから特徴量を各々抽出する。ロードノイズ演算部１６は、３方式の処理の各々により抽出された特徴量から各々演算して得た演算ロードノイズスペクトルを、車両の実走行により得た実ロードノイズスペクトルと比較し、実ロードノイズスペクトルとの誤差が最小となる演算ロードノイズスペクトルを予測ロードノイズスペクトルとして出力する。【選択図】図１

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Title :

ROAD SURFACE STATE DETECTION DEVICE

Additional title:

路面状態検出装置

Contributors:

NAKAMURA SHUNSUKE (author) / ISHIZAKI KEISUKE (author) / KOMADA MASASHI (author)

Publication date :

2020-09-17

Type of media :

Patent

Type of material :

Electronic Resource

Language :

Japanese

Classification :

IPC:

G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL