Overview
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Input
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* Cloud Ptr: point cloud used for classification
* Image Input: RGB image used for classification

Output
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* classLabel: label of the object, an int defined by the deep learning model
* confidence: confidence of the classification

Classification Setting
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* Model Mode: use only RGB for classification; use only depth(from point cloud) for classification; or use both.
* Model File Path: path to deep learning model
* Config File Path: path to deep learning config file