What Will the Next Generation of CAPTCHA Look Like? A History of CAPTCHA and the Human-Machine Arms Race

Reviewing the evolution of CAPTCHA from character recognition to image recognition, discussing human-machine confrontation, user experience, …

· 5 min

hCaptcha Leaf Elephant Recognition: Data and Model Practice

Analyze the data and visual characteristics of the hCaptcha leaf elephant image recognition task, discussing sample classification, model …

· 9 min

hCaptcha Left-Flying Airplane Recognition: Image Processing Approach

Analyze the hCaptcha task of identifying left-flying airplanes, introducing an implementation approach that uses background complexity, …

· 7 min

hCaptcha Vertical River Recognition: Image Features and Implementation Approach

Analyze the hCaptcha vertical river image task, document observations of image features, recognition methods, and solution iterations, and …

· 6 min

Deep Learning for Pixel Art: Research, Datasets, and Tools

Organizing the stylistic features, galleries, datasets, and drawing tools of pixel art, introducing research and projects on deep learning …

· 5 min