Distribution-Specific Learning for Joint Salient and Camouflaged Object Detection

• URL: http://arxiv.org/abs/2508.06063v1
• Date: Fri, 08 Aug 2025 06:52:54 GMT
• Title: Distribution-Specific Learning for Joint Salient and Camouflaged Object Detection
• Authors: Chao Hao, Zitong Yu, Xin Liu, Yuhao Wang, Weicheng Xie, Jingang Shi, Huanjing Yue, Jingyu Yang,
• Abstract summary: Salient object detection (SOD) and camouflaged object detection (COD) are two closely related but distinct computer vision tasks.<n>Previous works have mostly believed that joint learning of these two tasks would confuse the network, reducing its performance on both tasks.<n>We propose SCJoint a joint learning scheme for SOD and COD tasks, assuming that the decoding processes of SOD and COD have different distribution characteristics.
• Score: 36.80522951291785
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Salient object detection (SOD) and camouflaged object detection (COD) are two closely related but distinct computer vision tasks. Although both are class-agnostic segmentation tasks that map from RGB space to binary space, the former aims to identify the most salient objects in the image, while the latter focuses on detecting perfectly camouflaged objects that blend into the background in the image. These two tasks exhibit strong contradictory attributes. Previous works have mostly believed that joint learning of these two tasks would confuse the network, reducing its performance on both tasks. However, here we present an opposite perspective: with the correct approach to learning, the network can simultaneously possess the capability to find both salient and camouflaged objects, allowing both tasks to benefit from joint learning. We propose SCJoint, a joint learning scheme for SOD and COD tasks, assuming that the decoding processes of SOD and COD have different distribution characteristics. The key to our method is to learn the respective means and variances of the decoding processes for both tasks by inserting a minimal amount of task-specific learnable parameters within a fully shared network structure, thereby decoupling the contradictory attributes of the two tasks at a minimal cost. Furthermore, we propose a saliency-based sampling strategy (SBSS) to sample the training set of the SOD task to balance the training set sizes of the two tasks. In addition, SBSS improves the training set quality and shortens the training time. Based on the proposed SCJoint and SBSS, we train a powerful generalist network, named JoNet, which has the ability to simultaneously capture both ``salient" and ``camouflaged". Extensive experiments demonstrate the competitive performance and effectiveness of our proposed method. The code is available at https://github.com/linuxsino/JoNet.

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