International Journal of Computer Vision最新文献

{"title":"Exploring Homogeneous and Heterogeneous Consistent Label Associations for Unsupervised Visible-Infrared Person ReID","authors":"Lingfeng He, De Cheng, Nannan Wang, Xinbo Gao","doi":"10.1007/s11263-024-02322-1","DOIUrl":"https://doi.org/10.1007/s11263-024-02322-1","url":null,"abstract":"<p>Unsupervised visible-infrared person re-identification (USL-VI-ReID) endeavors to retrieve pedestrian images of the same identity from different modalities without annotations. While prior work focuses on establishing cross-modality pseudo-label associations to bridge the modality-gap, they ignore maintaining the instance-level homogeneous and heterogeneous consistency between the feature space and the pseudo-label space, resulting in coarse associations. In response, we introduce a Modality-Unified Label Transfer (MULT) module that simultaneously accounts for both homogeneous and heterogeneous fine-grained instance-level structures, yielding high-quality cross-modality label associations. It models both homogeneous and heterogeneous affinities, leveraging them to quantify the inconsistency between the pseudo-label space and the feature space, subsequently minimizing it. The proposed MULT ensures that the generated pseudo-labels maintain alignment across modalities while upholding structural consistency within intra-modality. Additionally, a straightforward plug-and-play Online Cross-memory Label Refinement (OCLR) module is proposed to further mitigate the side effects of noisy pseudo-labels while simultaneously aligning different modalities, coupled with an Alternative Modality-Invariant Representation Learning (AMIRL) framework. Experiments demonstrate that our proposed method outperforms existing state-of-the-art USL-VI-ReID methods, highlighting the superiority of our MULT in comparison to other cross-modality association methods. Code is available at https://github.com/FranklinLingfeng/code_for_MULT.</p>","PeriodicalId":13752,"journal":{"name":"International Journal of Computer Vision","volume":"25 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142886995","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":"SLIDE: A Unified Mesh and Texture Generation Framework with Enhanced Geometric Control and Multi-view Consistency","authors":"Jinyi Wang, Zhaoyang Lyu, Ben Fei, Jiangchao Yao, Ya Zhang, Bo Dai, Dahua Lin, Ying He, Yanfeng Wang","doi":"10.1007/s11263-024-02326-x","DOIUrl":"https://doi.org/10.1007/s11263-024-02326-x","url":null,"abstract":"<p>The generation of textured mesh is crucial for computer graphics and virtual content creation. However, current generative models often struggle with challenges such as irregular mesh structures and inconsistencies in multi-view textures. In this study, we present a unified framework for both geometry generation and texture generation, utilizing a novel sparse latent point diffusion model that specifically addresses the geometric aspects of models. Our approach employs point clouds as an efficient intermediate representation, encoding them into sparse latent points with semantically meaningful features for precise geometric control. While the sparse latent points facilitate a high-level control over the geometry, shaping the overall structure and fine details of the meshes, this control does not extend to textures. To address this, we propose a separate texture generation process that integrates multi-view priors post-geometry generation, effectively resolving the issue of multi-view texture inconsistency. This process ensures the production of coherent and high-quality textures that complement the precisely generated meshes, thereby creating visually appealing and detailed models. Our framework distinctively separates the control mechanisms for geometry and texture, leading to significant improvements in the generation of complex, textured 3D content. Evaluations on the ShapeNet dataset for geometry and the Objaverse dataset for textures demonstrate that our model surpasses existing methods in terms of geometric quality, control, and the generation of coherent, high-quality textures.</p>","PeriodicalId":13752,"journal":{"name":"International Journal of Computer Vision","volume":"64 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874200","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":"FusionBooster: A Unified Image Fusion Boosting Paradigm","authors":"Chunyang Cheng, Tianyang Xu, Xiao-Jun Wu, Hui Li, Xi Li, Josef Kittler","doi":"10.1007/s11263-024-02266-6","DOIUrl":"https://doi.org/10.1007/s11263-024-02266-6","url":null,"abstract":"<p>In recent years, numerous ideas have emerged for designing a mutually reinforcing mechanism or extra stages for the image fusion task, ignoring the inevitable gaps between different vision tasks and the computational burden. We argue that there is a scope to improve the fusion performance with the help of the FusionBooster, a model specifically designed for fusion tasks. In particular, our booster is based on the divide-and-conquer strategy controlled by an information probe. The booster is composed of three building blocks: the probe units, the booster layer, and the assembling module. Given the result produced by a backbone method, the probe units assess the fused image and divide the results according to their information content. This is instrumental in identifying missing information, as a step to its recovery. The recovery of the degraded components along with the fusion guidance are the role of the booster layer. Lastly, the assembling module is responsible for piecing these advanced components together to deliver the output. We use concise reconstruction loss functions in conjunction with lightweight autoencoder models to formulate the learning task, with marginal computational complexity increase. The experimental results obtained in various fusion missions, as well as downstream detection tasks, consistently demonstrate that the proposed FusionBooster significantly improves the performance. Our code will be publicly available at https://github.com/AWCXV/FusionBooster.</p>","PeriodicalId":13752,"journal":{"name":"International Journal of Computer Vision","volume":"24 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874202","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":"LaVie: High-Quality Video Generation with Cascaded Latent Diffusion Models","authors":"Yaohui Wang, Xinyuan Chen, Xin Ma, Shangchen Zhou, Ziqi Huang, Yi Wang, Ceyuan Yang, Yinan He, Jiashuo Yu, Peiqing Yang, Yuwei Guo, Tianxing Wu, Chenyang Si, Yuming Jiang, Cunjian Chen, Chen Change Loy, Bo Dai, Dahua Lin, Yu Qiao, Ziwei Liu","doi":"10.1007/s11263-024-02295-1","DOIUrl":"https://doi.org/10.1007/s11263-024-02295-1","url":null,"abstract":"<p>This work aims to learn a high-quality text-to-video (T2V) generative model by leveraging a pre-trained text-to-image (T2I) model as a basis. It is a highly desirable yet challenging task to simultaneously (a) accomplish the synthesis of visually realistic and temporally coherent videos while (b) preserving the strong creative generation nature of the pre-trained T2I model. To this end, we propose <b>LaVie</b>, an integrated video generation framework that operates on cascaded video latent diffusion models, comprising a base T2V model, a temporal interpolation model, and a video super-resolution model. Our key insights are two-fold: (1) We reveal that the incorporation of simple temporal self-attentions, coupled with rotary positional encoding, adequately captures the temporal correlations inherent in video data. (2) Additionally, we validate that the process of joint image-video fine-tuning plays a pivotal role in producing high-quality and creative outcomes. To enhance the performance of LaVie, we contribute a comprehensive and diverse video dataset named <b>Vimeo25M</b>, consisting of 25 million text-video pairs that prioritize quality, diversity, and aesthetic appeal. Extensive experiments demonstrate that LaVie achieves state-of-the-art performance both quantitatively and qualitatively. Furthermore, we showcase the versatility of pre-trained LaVie models in various long video generation and personalized video synthesis applications. Project page: https://github.com/Vchitect/LaVie/.</p>","PeriodicalId":13752,"journal":{"name":"International Journal of Computer Vision","volume":"20 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874201","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":"AutoStory: Generating Diverse Storytelling Images with Minimal Human Efforts","authors":"Wen Wang, Canyu Zhao, Hao Chen, Zhekai Chen, Kecheng Zheng, Chunhua Shen","doi":"10.1007/s11263-024-02309-y","DOIUrl":"https://doi.org/10.1007/s11263-024-02309-y","url":null,"abstract":"<p>Story visualization aims to generate a series of images that match the story described in texts, and it requires the generated images to satisfy high quality, alignment with the text description, and consistency in character identities. Given the complexity of story visualization, existing methods drastically simplify the problem by considering only a few specific characters and scenarios, or requiring the users to provide per-image control conditions such as sketches. However, these simplifications render these methods incompetent for real applications. To this end, we propose an automated story visualization system that can effectively generate diverse, high-quality, and consistent sets of story images, with minimal human interactions. Specifically, we utilize the comprehension and planning capabilities of large language models for layout planning, and then leverage large-scale text-to-image models to generate sophisticated story images based on the layout. We empirically find that sparse control conditions, such as bounding boxes, are suitable for layout planning, while dense control conditions, <i>e.g.</i>, sketches, and keypoints, are suitable for generating high-quality image content. To obtain the best of both worlds, we devise a dense condition generation module to transform simple bounding box layouts into sketch or keypoint control conditions for final image generation, which not only improves the image quality but also allows easy and intuitive user interactions. In addition, we propose a simple yet effective method to generate multi-view consistent character images, eliminating the reliance on human labor to collect or draw character images. This allows our method to obtain consistent story visualization even when only texts are provided as input. Both qualitative and quantitative experiments demonstrate the superiority of our method.</p>","PeriodicalId":13752,"journal":{"name":"International Journal of Computer Vision","volume":"32 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874204","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":"Noise-Resistant Multimodal Transformer for Emotion Recognition","authors":"Yuanyuan Liu, Haoyu Zhang, Yibing Zhan, Zijing Chen, Guanghao Yin, Lin Wei, Zhe Chen","doi":"10.1007/s11263-024-02304-3","DOIUrl":"https://doi.org/10.1007/s11263-024-02304-3","url":null,"abstract":"<p>Multimodal emotion recognition identifies human emotions from various data modalities like video, text, and audio. However, we found that this task can be easily affected by noisy information that does not contain useful semantics and may occur at different locations of a multimodal input sequence. To this end, we present a novel paradigm that attempts to extract noise-resistant features in its pipeline and introduces a noise-aware learning scheme to effectively improve the robustness of multimodal emotion understanding against noisy information. Our new pipeline, namely Noise-Resistant Multimodal Transformer (NORM-TR), mainly introduces a Noise-Resistant Generic Feature (NRGF) extractor and a multimodal fusion Transformer for the multimodal emotion recognition task. In particular, we make the NRGF extractor learn to provide a generic and disturbance-insensitive representation so that consistent and meaningful semantics can be obtained. Furthermore, we apply a multimodal fusion Transformer to incorporate Multimodal Features (MFs) of multimodal inputs (serving as the key and value) based on their relations to the NRGF (serving as the query). Therefore, the possible insensitive but useful information of NRGF could be complemented by MFs that contain more details, achieving more accurate emotion understanding while maintaining robustness against noises. To train the NORM-TR properly, our proposed noise-aware learning scheme complements normal emotion recognition losses by enhancing the learning against noises. Our learning scheme explicitly adds noises to either all the modalities or a specific modality at random locations of a multimodal input sequence. We correspondingly introduce two adversarial losses to encourage the NRGF extractor to learn to extract the NRGFs invariant to the added noises, thus facilitating the NORM-TR to achieve more favorable multimodal emotion recognition performance. In practice, extensive experiments can demonstrate the effectiveness of the NORM-TR and the noise-aware learning scheme for dealing with both explicitly added noisy information and the normal multimodal sequence with implicit noises. On several popular multimodal datasets (e.g., MOSI, MOSEI, IEMOCAP, and RML), our NORM-TR achieves state-of-the-art performance and outperforms existing methods by a large margin, which demonstrates that the ability to resist noisy information in multimodal input is important for effective emotion recognition.</p>","PeriodicalId":13752,"journal":{"name":"International Journal of Computer Vision","volume":"22 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142869955","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":"Polynomial Implicit Neural Framework for Promoting Shape Awareness in Generative Models","authors":"Utkarsh Nath, Rajhans Singh, Ankita Shukla, Kuldeep Kulkarni, Pavan Turaga","doi":"10.1007/s11263-024-02270-w","DOIUrl":"https://doi.org/10.1007/s11263-024-02270-w","url":null,"abstract":"<p>Polynomial functions have been employed to represent shape-related information in 2D and 3D computer vision, even from the very early days of the field. In this paper, we present a framework using polynomial-type basis functions to promote shape awareness in contemporary generative architectures. The benefits of using a learnable form of polynomial basis functions as drop-in modules into generative architectures are several—including promoting shape awareness, a noticeable disentanglement of shape from texture, and high quality generation. To enable the architectures to have a small number of parameters, we further use implicit neural representations (INR) as the base architecture. Most INR architectures rely on sinusoidal positional encoding, which accounts for high-frequency information in data. However, the finite encoding size restricts the model’s representational power. Higher representational power is critically needed to transition from representing a single given image to effectively representing large and diverse datasets. Our approach addresses this gap by representing an image with a polynomial function and eliminates the need for positional encodings. Therefore, to achieve a progressively higher degree of polynomial representation, we use element-wise multiplications between features and affine-transformed coordinate locations after every ReLU layer. The proposed method is evaluated qualitatively and quantitatively on large datasets such as ImageNet. The proposed Poly-INR model performs comparably to state-of-the-art generative models without any convolution, normalization, or self-attention layers, and with significantly fewer trainable parameters. With substantially fewer training parameters and higher representative power, our approach paves the way for broader adoption of INR models for generative modeling tasks in complex domains. The code is publicly available at https://github.com/Rajhans0/Poly_INR.</p>","PeriodicalId":13752,"journal":{"name":"International Journal of Computer Vision","volume":"1 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858370","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":"Deep Attention Learning for Pre-operative Lymph Node Metastasis Prediction in Pancreatic Cancer via Multi-object Relationship Modeling","authors":"Zhilin Zheng, Xu Fang, Jiawen Yao, Mengmeng Zhu, Le Lu, Yu Shi, Hong Lu, Jianping Lu, Ling Zhang, Chengwei Shao, Yun Bian","doi":"10.1007/s11263-024-02314-1","DOIUrl":"https://doi.org/10.1007/s11263-024-02314-1","url":null,"abstract":"<p>Lymph node (LN) metastasis status is one of the most critical prognostic and cancer staging clinical factors for patients with resectable pancreatic ductal adenocarcinoma (PDAC, generally for any types of solid malignant tumors). Pre-operative prediction of LN metastasis from non-invasive CT imaging is highly desired, as it might be directly and conveniently used to guide the follow-up neoadjuvant treatment decision and surgical planning. Most previous studies only use the tumor characteristics in CT imaging alone to implicitly infer LN metastasis. To the best of our knowledge, this is the first work to propose a fully-automated LN segmentation and identification network to directly facilitate the LN metastasis status prediction task for patients with PDAC. Specially, (1) we explore the anatomical spatial context priors of pancreatic LN locations by generating a guiding attention map from related organs and vessels to assist segmentation and infer LN status. As such, LN segmentation is impelled to focus on regions that are anatomically adjacent or plausible with respect to the specific organs and vessels. (2) The metastasized LN identification network is trained to classify the segmented LN instances into positives or negatives by reusing the segmentation network as a pre-trained backbone and padding a new classification head. (3) Importantly, we develop a LN metastasis status prediction network that combines and aggregates the holistic patient-wise diagnosis information of both LN segmentation/identification and deep imaging characteristics by the PDAC tumor region. Extensive quantitative nested five-fold cross-validation is conducted on a discovery dataset of 749 patients with PDAC. External multi-center clinical evaluation is further performed on two other hospitals of 191 total patients. Our multi-staged LN metastasis status prediction network statistically significantly outperforms strong baselines of nnUNet and several other compared methods, including CT-reported LN status, radiomics, and deep learning models.\u0000</p>","PeriodicalId":13752,"journal":{"name":"International Journal of Computer Vision","volume":"31 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142867002","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":"Learning Discriminative Features for Visual Tracking via Scenario Decoupling","authors":"Yinchao Ma, Qianjin Yu, Wenfei Yang, Tianzhu Zhang, Jinpeng Zhang","doi":"10.1007/s11263-024-02307-0","DOIUrl":"https://doi.org/10.1007/s11263-024-02307-0","url":null,"abstract":"<p>Visual tracking aims to estimate object state automatically in a video sequence, which is challenging especially in complex scenarios. Recent Transformer-based trackers enable the interaction between the target template and search region in the feature extraction phase for target-aware feature learning, which have achieved superior performance. However, visual tracking is essentially a task to discriminate the specified target from the backgrounds. These trackers commonly ignore the role of background in feature learning, which may cause backgrounds to be mistakenly enhanced in complex scenarios, affecting temporal robustness and spatial discriminability. To address the above limitations, we propose a scenario-aware tracker (SATrack) based on a specifically designed scenario-aware Vision Transformer, which integrates a scenario knowledge extractor and a scenario knowledge modulator. The proposed SATrack enjoys several merits. Firstly, we design a novel scenario-aware Vision Transformer for visual tracking, which can decouple historic scenarios into explicit target and background knowledge to guide discriminative feature learning. Secondly, a scenario knowledge extractor is designed to dynamically acquire decoupled and compact scenario knowledge from video contexts, and a scenario knowledge modulator is designed to embed scenario knowledge into attention mechanisms for scenario-aware feature learning. Extensive experimental results on nine tracking benchmarks demonstrate that SATrack achieves new state-of-the-art performance with high FPS.</p>","PeriodicalId":13752,"journal":{"name":"International Journal of Computer Vision","volume":"24 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858369","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":"Hard-Normal Example-Aware Template Mutual Matching for Industrial Anomaly Detection","authors":"Zixuan Chen, Xiaohua Xie, Lingxiao Yang, Jian-Huang Lai","doi":"10.1007/s11263-024-02323-0","DOIUrl":"https://doi.org/10.1007/s11263-024-02323-0","url":null,"abstract":"<p>Anomaly detectors are widely used in industrial manufacturing to detect and localize unknown defects in query images. These detectors are trained on anomaly-free samples and have successfully distinguished anomalies from most normal samples. However, hard-normal examples are scattered and far apart from most normal samples, and thus they are often mistaken for anomalies by existing methods. To address this issue, we propose <b>H</b>ard-normal <b>E</b>xample-aware <b>T</b>emplate <b>M</b>utual <b>M</b>atching (HETMM), an efficient framework to build a robust prototype-based decision boundary. Specifically, <i>HETMM</i> employs the proposed <b>A</b>ffine-invariant <b>T</b>emplate <b>M</b>utual <b>M</b>atching (ATMM) to mitigate the affection brought by the affine transformations and easy-normal examples. By mutually matching the pixel-level prototypes within the patch-level search spaces between query and template set, <i>ATMM</i> can accurately distinguish between hard-normal examples and anomalies, achieving low false-positive and missed-detection rates. In addition, we also propose <i>PTS</i> to compress the original template set for speed-up. <i>PTS</i> selects cluster centres and hard-normal examples to preserve the original decision boundary, allowing this tiny set to achieve comparable performance to the original one. Extensive experiments demonstrate that <i>HETMM</i> outperforms state-of-the-art methods, while using a 60-sheet tiny set can achieve competitive performance and real-time inference speed (around 26.1 FPS) on a Quadro 8000 RTX GPU. <i>HETMM</i> is training-free and can be hot-updated by directly inserting novel samples into the template set, which can promptly address some incremental learning issues in industrial manufacturing.</p>","PeriodicalId":13752,"journal":{"name":"International Journal of Computer Vision","volume":"26 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142848869","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}