CIGOcc: Complementary Information Guided Occupancy Prediction via Multi-Level Representation Fusion

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This is the code of CIGOcc.

Camera-based occupancy prediction is a main- stream approach for 3D perception in autonomous driving, aiming to infer complete 3D scene geometry and semantics from 2D images. Almost existing methods focus on improv- ing performance through structural modifications, such as lightweight backbones and complex cascaded frameworks, with good yet limited performance. Few studies explore from the perspective of representation fusion, leaving the rich diversity of features in 2D images underutilized. Motivated by this, we propose CIGOcc, a two-stage occupancy prediction framework based on multi-level representation fusion. CIGOcc extracts segmentation, graphics, and depth features from an input image and introduces a deformable multi-level fusion mechanism to fuse these three multi-level features. Additionally, CIGOcc incorporates knowledge distilled from SAM to further enhance prediction accuracy. Without increasing training costs, CIGOcc achieves state-of-the-art performance on the SemanticKITTI benchmark.

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Getting Start

Our code will be released soon.

Qualitative Results

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