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CAPTCHAs are commonly used to distinguish between human and bot users on the web. However, despite having various types of CAPTCHAs, there are still concerns about their security and usability. To address these concerns, we surveyed over…

Cryptography and Security · Computer Science 2024-05-30 Arun Reddy , Yuan Cheng

Generating a description of an image is called image captioning. Image captioning requires to recognize the important objects, their attributes and their relationships in an image. It also needs to generate syntactically and semantically…

Computer Vision and Pattern Recognition · Computer Science 2018-10-16 Md. Zakir Hossain , Ferdous Sohel , Mohd Fairuz Shiratuddin , Hamid Laga

Deepfakes are computationally-created entities that falsely represent reality. They can take image, video, and audio modalities, and pose a threat to many areas of systems and societies, comprising a topic of interest to various aspects of…

Human-Computer Interaction · Computer Science 2023-05-26 Sergi D. Bray , Shane D. Johnson , Bennett Kleinberg

Precise detection of rooftops from historical aerial imagery is essential for analyzing long-term urban development and human settlement patterns. Nonetheless, black-and-white analog photographs present considerable challenges for modern…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Pengyu Chen , Sicheng Wang , Cuizhen Wang , Senrong Wang , Beiao Huang , Lu Huang , Zhe Zang

What is the current state-of-the-art for image restoration and enhancement applied to degraded images acquired under less than ideal circumstances? Can the application of such algorithms as a pre-processing step to improve image…

CAPTCHAs have been a critical bottleneck for deploying web agents in real-world applications, often blocking them from completing end-to-end automation tasks. While modern multimodal LLM agents have demonstrated impressive performance in…

Artificial Intelligence · Computer Science 2025-06-02 Yaxin Luo , Zhaoyi Li , Jiacheng Liu , Jiacheng Cui , Xiaohan Zhao , Zhiqiang Shen

Understanding the limitations and weaknesses of state-of-the-art models in artificial intelligence is crucial for their improvement and responsible application. In this research, we focus on CLIP, a model renowned for its integration of…

Computer Vision and Pattern Recognition · Computer Science 2024-07-02 Ayush Ranjan , Daniel Wen , Karthik Bhat

Automated social agents, or bots, are increasingly becoming a problem on social media platforms. There is a growing body of literature and multiple tools to aid in the detection of such agents on online social networking platforms. We…

Social and Information Networks · Computer Science 2018-09-18 Laurenz A Cornelissen , Richard J Barnett , Petrus Schoonwinkel , Brent D. Eichstadt , Hluma B. Magodla

As AI-powered image generation improves, a key question is how well human beings can differentiate between "real" and AI-generated or modified images. Using data collected from the online game "Real or Not Quiz.", this study investigates…

Human-Computer Interaction · Computer Science 2025-07-28 Thomas Roca , Anthony Cintron Roman , Jehú Torres Vega , Marcelo Duarte , Pengce Wang , Kevin White , Amit Misra , Juan Lavista Ferres

Artificial intelligence (AI) models for computer vision trained with supervised machine learning are assumed to solve classification tasks by imitating human behavior learned from training labels. Most efforts in recent vision research…

Computer Vision and Pattern Recognition · Computer Science 2025-02-19 Minghao Liu , Jiaheng Wei , Yang Liu , James Davis

Modern, state-of-the-art deep learning approaches yield human like performance in numerous object detection and classification tasks. The foundation for their success is the availability of training datasets of substantially high quantity,…

Deep learning methods for computer vision tasks show promise for automating the data analysis of camera trap images. Ecological camera traps are a common approach for monitoring an ecosystem's animal population, as they provide continual…

Computer Vision and Pattern Recognition · Computer Science 2018-03-30 Stefan Schneider , Graham W. Taylor , Stefan C. Kremer

Masked image modeling (MIM) has become a prevalent pre-training setup for vision foundation models and attains promising performance. Despite its success, existing MIM methods discard the decoder network during downstream applications,…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Qi Han , Yuxuan Cai , Xiangyu Zhang

CAPTCHAs or reverse Turing tests are real-time assessments used by programs (or computers) to tell humans and machines apart. This is achieved by assigning and assessing hard AI problems that could only be solved easily by human but not by…

Human-Computer Interaction · Computer Science 2014-02-05 A. K. B. Karunathilake , B. M. D. Balasuriya , R. G. Ragel

Neural networks have proven effective at solving difficult problems but designing their architectures can be challenging, even for image classification problems alone. Our goal is to minimize human participation, so we employ evolutionary…

Neural and Evolutionary Computing · Computer Science 2017-06-13 Esteban Real , Sherry Moore , Andrew Selle , Saurabh Saxena , Yutaka Leon Suematsu , Jie Tan , Quoc Le , Alex Kurakin

High-performance visual recognition systems generally require a large collection of labeled images to train. The expensive data curation can be an obstacle for improving recognition performance. Sharing more data allows training for better…

Computer Vision and Pattern Recognition · Computer Science 2019-06-24 Tae-hoon Kim , Dongmin Kang , Kari Pulli , Jonghyun Choi

Automated game testing is important for verifying game functionality, but it remains a costly and time-consuming process. Manual testing often misses edge cases, and current automated methods struggle to provide full code coverage. Prior…

Software Engineering · Computer Science 2026-05-15 Valliappan Chidambaram Adaikkappan , Vincent Martineau , Joshua Romoff , David Meger

Most image-search approaches today are based on the text based tags associated with the images which are mostly human generated and are subject to various kinds of errors. The results of a query to the image database thus can often be…

Machine Learning · Computer Science 2010-08-03 Ankit Garg , Rahul Dwivedi , Krishna Asawa

Online Social Networks have revolutionized how we consume and share information, but they have also led to a proliferation of content not always reliable and accurate. One particular type of social accounts is known to promote unreputable…

Social and Information Networks · Computer Science 2023-04-18 Edoardo Di Paolo , Marinella Petrocchi , Angelo Spognardi

At present, and increasingly so in the future, much of the captured visual content will not be seen by humans. Instead, it will be used for automated machine vision analytics and may require occasional human viewing. Examples of such…

Image and Video Processing · Electrical Eng. & Systems 2022-04-13 Hyomin Choi , Ivan V. Bajic
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