{"title":"Sampling-Free Universal Domain Adaptive Object Detection with Synergistic Optimization Alignment","authors":"Yuanfan Zheng,Jinlin Wu,Wuyang Li,Kailun Yang,Jun Yu,Zhen Chen","doi":"10.1007/s11263-026-03047-z","DOIUrl":"https://doi.org/10.1007/s11263-026-03047-z","url":null,"abstract":"Abstract Universal Domain Adaptive Object Detection (UniDAOD) addresses domain shifts in open-world scenarios without assuming pre-defined shared categories between source and target domains. Despite progress in this field, existing methods rely heavily on thresholding techniques to filter private category samples, which introduces challenges in hyperparameter tuning and handling noisy data. To overcome these limitations, we propose Synergistic Optimization Alignment (SOA), a sampling-free framework that tackles two challenges inherent in UniDAOD: multi-scale discriminator discrepancy and task-dominant gradient conflict. To address the discrepancy among multi-scale discriminators, we propose Multi-Scale Discriminator Alignment (MDA) to adaptively aggregate under-aligned discriminators for shared classes, ensuring consistent feature alignment across scales. To address task-dominant gradient conflicts, we propose Gradient Coordinated Optimization (GCO), which suppresses conflicting domain-alignment gradients and coordinates their magnitudes to prevent domain over-alignment, thereby mitigating private-class interference while preserving beneficial domain-invariant supervision. Extensive experiments on open-set, partial-set, and closed-set domain adaptation benchmarks demonstrate that SOA outperforms state-of-the-art UniDAOD and DAOD methods. Code is available at https://github.com/zyfone/SOA .","PeriodicalId":13752,"journal":{"name":"International Journal of Computer Vision","volume":"16 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149049199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"BD-Diff: Generative Diffusion Model for Image Deblurring on Unknown Domains with Blur-Decoupled Learning","authors":"Junhao Cheng,Wei-Ting Chen,Xi Lu,Ming-Hsuan Yang","doi":"10.1007/s11263-026-03026-4","DOIUrl":"https://doi.org/10.1007/s11263-026-03026-4","url":null,"abstract":"","PeriodicalId":13752,"journal":{"name":"International Journal of Computer Vision","volume":"16 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149021312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhuoyang Pan,Boxiao Pan,Guandao Yang,Adam W. Harley,Leonidas Guibas
{"title":"PosePAL: Efficient Animal Pose Labeling Using Point Trackers","authors":"Zhuoyang Pan,Boxiao Pan,Guandao Yang,Adam W. Harley,Leonidas Guibas","doi":"10.1007/s11263-026-02976-z","DOIUrl":"https://doi.org/10.1007/s11263-026-02976-z","url":null,"abstract":"Abstract Automatically estimating animal poses from videos is important for studying animal behavior. Existing methods do not perform reliably, partly because they rely on high-quality training data, and existing such datasets are small. It is challenging and expensive to create such data, due to the large variations in animal morphology and the difficulty of frame-wise video annotation in general. In this paper, we introduce an animal pose labeling pipeline that leverages test-time optimization of a point tracker, providing temporally-consistent annotations at low cost. Given a video, we fine-tune a lightweight appearance embedding inside a pre-trained general-purpose point tracker on a sparse set of annotated frames. These annotations can be obtained from human labelers or off-the-shelf pose detectors. The fine-tuned model is then applied to the rest of the frames for automatic labeling. Our method achieves state-of-the-art performance at a reasonable annotation cost. We believe our pipeline offers a valuable tool for the automatic quantification of animal behavior. Visit our project webpage at https://zhuoyang-pan.github.io/animal-labeling .","PeriodicalId":13752,"journal":{"name":"International Journal of Computer Vision","volume":"52 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149049203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zheng Chang, Lihan Lin, Huan Ouyang, Shuchen Weng, Si Li, Boxin Shi
{"title":"UniColorFlow: A Unified Framework for Multimodal-Guided Video Colorization with Consistency Flow","authors":"Zheng Chang, Lihan Lin, Huan Ouyang, Shuchen Weng, Si Li, Boxin Shi","doi":"10.1007/s11263-026-03058-w","DOIUrl":"https://doi.org/10.1007/s11263-026-03058-w","url":null,"abstract":"Video colorization aims to revitalize grayscale footage with vibrant and temporally consistent colors, yet it remains an inherently ill-posed problem. While user-guided methods offer controllability, existing multimodal frameworks struggle with significant limitations, including limited adherence to conditions due to luminance bias, potential conflicts among guidance signals, inconsistent identities across multi-shot videos, and prohibitive computational costs. To address these challenges, we introduce UniColorFlow, a unified framework for multimodal-guided video colorization. We propose a data augmentation strategy to decouple luminance from color, thereby mitigating inherent biases in the training data. We further design a unified condition network to integrate diverse spatial and language inputs. This module effectively resolves condition conflicts and enforces multi-shot consistency via a shot-aware attention mechanism. Finally, we employ a one-stage training strategy that unifies training and consistency learning, significantly reducing both training and inference overhead. Extensive experiments demonstrate that UniColorFlow outperforms state-of-the-art methods, achieving superior generation quality with flexible controllability and high efficiency.","PeriodicalId":13752,"journal":{"name":"International Journal of Computer Vision","volume":"22 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149086485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}