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Accurate and fast recognition of forgeries is an issue of great importance in the fields of artificial intelligence, image processing and object detection. Recognition of forgeries of facial imagery is the process of classifying and…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Günel Jabbarlı , Murat Kurt

Image enhancement is a significant research area in the fields of computer vision and image processing. In recent years, many learning-based methods for image enhancement have been developed, where the Look-up-table (LUT) has proven to be…

计算机视觉与模式识别 · 计算机科学 2023-11-23 Weiwen Chen , Qiuhong Ke , Zinuo Li

Recently, Vision Transformers (ViTs) have achieved unprecedented effectiveness in the general domain of image classification. Nonetheless, these models remain underexplored in the field of deepfake detection, given their lower performance…

计算机视觉与模式识别 · 计算机科学 2024-11-26 Dat Nguyen , Marcella Astrid , Enjie Ghorbel , Djamila Aouada

The synergy between generative and discriminative models receives growing attention. While discriminative Contrastive Language-Image Pre-Training (CLIP) excels in high-level semantics, it struggles with perceiving fine-grained visual…

计算机视觉与模式识别 · 计算机科学 2025-08-01 Shijie Ma , Yuying Ge , Teng Wang , Yuxin Guo , Yixiao Ge , Ying Shan

The increasing emphasis on privacy and data security has driven the adoption of federated learning, a decentralized approach to train machine learning models without sharing raw data. Prompt learning, which fine-tunes prompt embeddings of…

机器学习 · 计算机科学 2025-03-31 Dongping Liao , Xitong Gao , Yabo Xu , Chengzhong Xu

This paper introduces a novel approach to person identification using hand images, designed specifically for criminal investigations. The method is particularly valuable in serious crimes such as sexual abuse, where hand images are often…

计算机视觉与模式识别 · 计算机科学 2025-07-31 Nathanael L. Baisa , Babu Pallam , Amudhavel Jayavel

Recent generative models produce near-photorealistic images, challenging the trustworthiness of photographs. Synthetic image detection (SID) has thus become an important area of research. Prior work has highlighted how synthetic images…

计算机视觉与模式识别 · 计算机科学 2026-02-16 Marco Willi , Melanie Mathys , Michael Graber

Contrastive Language-Image Pre-training (CLIP), a simple yet effective pre-training paradigm, successfully introduces text supervision to vision models. It has shown promising results across various tasks due to its generalizability and…

计算机视觉与模式识别 · 计算机科学 2025-03-27 Zihao Zhao , Yuxiao Liu , Han Wu , Mei Wang , Yonghao Li , Sheng Wang , Lin Teng , Disheng Liu , Zhiming Cui , Qian Wang , Dinggang Shen

Contrastive language-image pre-training (CLIP) is a powerful vision-language model that has shown great benefits for various tasks. However, we have identified some issues with its explainability, which undermine its credibility and limit…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Yi Li , Hualiang Wang , Yiqun Duan , Jiheng Zhang , Xiaomeng Li

Despite remarkable advancements in supervised pansharpening neural networks, these methods face domain adaptation challenges of resolution due to the intrinsic disparity between simulated reduced-resolution training data and real-world…

图像与视频处理 · 电气工程与系统科学 2025-11-17 Lihua Jian , Jiabo Liu , Shaowu Wu , Lihui Chen

Vision foundation models have shown great promise for open-set 3D object retrieval (3DOR) through efficient adaptation to multi-view images. Leveraging semantically aligned latent space, previous work typically adapts the CLIP encoder to…

计算机视觉与模式识别 · 计算机科学 2026-04-22 Xinwei He , Yansong Zheng , Qianru Han , Zhichuan Wang , Yuxuan Cai , Yang Zhou , Jingbo Xia , Yulong Wang , Jinhai Xiang , Xiang Bai

Recent advances in generative artificial intelligence have enabled the creation of highly realistic image forgeries, raising significant concerns about digital media authenticity. While existing detection methods demonstrate promising…

多媒体 · 计算机科学 2025-04-15 Junhao Xu , Jingjing Chen , Yang Jiao , Jiacheng Zhang , Zhiyu Tan , Hao Li , Yu-Gang Jiang

CLIP has shown promising performance across many short-text tasks in a zero-shot manner. However, limited by the input length of the text encoder, CLIP struggles on under-stream tasks with long-text inputs ($>77$ tokens). To remedy this…

计算机视觉与模式识别 · 计算机科学 2025-07-30 Bingchao Wang , Zhiwei Ning , Jianyu Ding , Xuanang Gao , Yin Li , Dongsheng Jiang , Jie Yang , Wei Liu

Biometrics emerged as a robust solution for security systems. However, given the dissemination of biometric applications, criminals are developing techniques to circumvent them by simulating physical or behavioral traits of legal users…

计算机视觉与模式识别 · 计算机科学 2018-10-12 Gustavo Botelho de Souza , João Paulo Papa , Aparecido Nilceu Marana

Forgery facial images and videos have increased the concern of digital security. It leads to the significant development of detecting forgery data recently. However, the data, especially the videos published on the Internet, are usually…

计算机视觉与模式识别 · 计算机科学 2023-02-14 Jiajun Huang , Xinqi Zhu , Chengbin Du , Siqi Ma , Surya Nepal , Chang Xu

In this paper, we propose to detect forged videos, of faces, in online videos. To facilitate this detection, we propose to use smaller (fewer parameters to learn) convolutional neural networks (CNN), for a data-driven approach to forged…

计算机视觉与模式识别 · 计算机科学 2020-05-19 Neilesh Sambhu , Shaun Canavan

Contrastive Language-Image Pretraining (CLIP) has emerged as a novel paradigm to learn visual models from language supervision. While researchers continue to push the frontier of CLIP, reproducing these works remains challenging. This is…

计算机视觉与模式识别 · 计算机科学 2022-03-14 Yufeng Cui , Lichen Zhao , Feng Liang , Yangguang Li , Jing Shao

Existing pedestrian attribute recognition (PAR) algorithms adopt pre-trained CNN (e.g., ResNet) as their backbone network for visual feature learning, which might obtain sub-optimal results due to the insufficient employment of the…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Xiao Wang , Jiandong Jin , Chenglong Li , Jin Tang , Cheng Zhang , Wei Wang

With the rapid development of deep learning technology, more and more face forgeries by deepfake are widely spread on social media, causing serious social concern. Face forgery detection has become a research hotspot in recent years, and…

计算机视觉与模式识别 · 计算机科学 2021-09-30 Hao Lin , Weiqi Luo , Kangkang Wei , Minglin Liu

CLIP has demonstrated strong generalization in visual domains through natural language supervision, even for video action recognition. However, most existing approaches that adapt CLIP for action recognition have primarily focused on…

计算机视觉与模式识别 · 计算机科学 2026-04-27 Hyo Jin Jon , Longbin Jin , Eun Yi Kim