Although great progress has been made in Camouflaged Object Detection (COD), it still faces challenges in complex real-world scenes. Existing methods are primarily designed for visible images but face limitations when detecting highly camouflaged or partially occluded objects. Integrating multiple complementary information sources, such as visible images and infrared images, is an effective way to improve the performance of COD. However, research in this field is limited by the lack of comprehensive and high-quality benchmark datasets. To solve this problem, a Visible-Infrared Artificial Camouflage (VIAC) dataset is constructed. Building on this dataset, we propose a novel Visible-Infrared Camouflaged Object Detection (VICOD) framework, termed the Confidence-Guided Fusion and Inpainting Network (CGFINet). The network utilizes a cross-modal collaborative fusion module (CMCF) to achieve adaptive integration of visible and infrared information. Simultaneously, low-confidence regions segmentation boundaries are refined by leveraging high-confidence pixel information within the confidence-driven inpainting module (CDIM). To focus on low-confidence areas, pixel-level uncertainty is incorporated into the loss function as a dynamic weight factor, which prompts the model to focus on high-uncertainty areas. Extensive experiments on VIAC demonstrate that our method achieves state-of-the-art performance, surpassing existing COD and visible-infrared SOD approaches.

We present LawDIS, a language-window-based controllable dichotomous image segmentation (DIS) framework that produces high-quality object masks. Our framework recasts DIS as an image-conditioned mask generation task within a latent diffusion model, enabling seamless integration of user controls. LawDIS is enhanced with macro-to-micro control modes. Specifically, in macro mode, we introduce a language-controlled segmentation strategy (LS) to generate an initial mask based on user-provided language prompts. In micro mode, a window-controlled refinement strategy (WR) allows flexible refinement of user-defined regions (i.e., size-adjustable windows) within the initial mask. Coordinated by a mode switcher, these modes can operate independently or jointly, making the framework well-suited for high-accuracy, personalised applications. Extensive experiments on the DIS5K benchmark reveal that our LawDIS significantly outperforms 11 cutting-edge methods across all metrics. Notably, compared to the second-best model MVANet, we achieve $F_β^ω$ gains of 4.6\% with both the LS and WR strategies and 3.6\% gains with only the LS strategy on DIS-TE. Codes will be made available at https://github.com/XinyuYanTJU/LawDIS.

Camouflaged Object Detection (COD) is a visual task aimed at identifying objects hidden within their surroundings. Current methods often enhance detection accuracy through boundary structures or uncertainty guidance, but they frequently overlook the identification cues embedded in gradient features. Inspired by the high sensitivity of gradient features to differences between the object and the background, we introduce a novel Gradient-guided Attention Fusion Network (GAFNet) that emphasizes extracting valuable cues by focusing on gradient and high-frequency features of the object. In GAFNet, we propose a Deep Gradient Attention Fusion module (DGAF) to strengthen the response to multi-scale gradient features, utilizing the deep information of gradient features to further refine object localization and identification. Additionally, to globally capture more gradient feature and high-frequency feature cues, we design a High-Frequency Feature Perception module (HFFP) based on a deep residual attention mechanism. Our experimental results on three established COD datasets demonstrate that GAFNet significantly outperforms existing state-of-the-art methods.

Camouflaged Object Detection (COD) has historically been a significant challenge in the field of computer vision. Most existing methods for COD predominantly rely on complex designs to maximize the confidence of foreground regions within spatial features. In contrast, an alternative perspective is that suppressing background distractions to highlight the foreground might be a more effective approach. To address this issue, we propose Distraction Suppression Network, named DSNet. Specifically, Distracion Suppression Module (DSM) is implemented prior to the decoding stage to suppress the distracting information based on the Object-Related Information (ORI) extracted from Object Mining Module (OMM). Then, the Feature Modulation Decoder (FMD) modulates features with varing frequencies and obtains the prediction in a coarse-to-fine way. Experimental results show that our model outperforms existing state-of-the-art models on benchmark datasets by a large margin. Notably, our model maintains its performance even in more complex camouflage scenes.

In the biosphere, camouflaged objects take the advantage of visional wholeness by keeping the color and texture of the objects highly consistent with the background, thereby confusing the visual mechanism of other creatures and achieving a concealed effect. This is also the main reason why the task of camouflaged object detection is challenging. In this article, we break the visual wholeness and see through the camouflage from the perspective of matching the appropriate field of view. We propose a matching-recognition-refinement network (MRR-Net), which consists of two key modules, i.e., the visual field matching and recognition module (VFMRM) and the stepwise refinement module (SWRM). In the VFMRM, various feature receptive fields are used to match candidate areas of camouflaged objects of different sizes and shapes and adaptively activate and recognize the approximate area of the real camouflaged object. The SWRM then uses the features extracted by the backbone to gradually refine the camouflaged region obtained by VFMRM, thus yielding the complete camouflaged object. In addition, a more efficient deep supervision method is exploited, making the features from the backbone input into the SWRM more critical and not redundant. Extensive experimental results demonstrate that our MRR-Net runs in real-time (82.6 frames/s) and significantly outperforms 30 state-of-the-art models on three challenging datasets under three standard metrics. Furthermore, MRR-Net is applied to four downstream tasks of camouflaged object segmentation (COS), and the results validate its practical application value. Our code is publicly available at: https://github.com/XinyuYanTJU/MRR-Net.

Video salient object detection has been attracting more and more research interests recently. However, the definition of salient objects in videos has been controversial all the time, which has become a critical bottleneck in video salient object detection. Specifically, the sequential information contained in videos results in a fact that objects have a relative saliency ranking between each other rather than specific saliency. This implies that simply distinguishing objects into salient or not-salient as usual could not represent the information about saliency comprehensively. To address this issue, 1) in this paper we propose a completely new definition for the salient objects in videos---ranking salient objects, which considers relative saliency ranking assisted with eye fixation points. 2) Based on this definition, a ranking video salient object dataset(RVSOD) is built. 3) Leveraging our RVSOD, a novel neural network called Synthesized Video Saliency Network (SVSNet) is constructed to detect both traditional salient objects and human eye movements in videos. Finally, a ranking saliency module (RSM) takes the results of SVSNet as input to generate the ranking saliency maps. We hope our approach will serve as a baseline and lead to a conceptually new research in the field of video saliency.