The database was developed by the Joint Research & Development Laboratory (JDL) of the Chinese Academy of Sciences (CAS). Its primary purpose is to provide researchers with a robust dataset for training and testing algorithms against real-world visual challenges. Core "PEAL" Features
: Includes various facial expressions such as neutral, smile, surprise, frown, and closed eyes. Cas Peal
is a large-scale Chinese face database created to evaluate face recognition algorithms, specifically focusing on four key types of variations known as PEAL : P ose, E xpression, A ccessories, and L ighting . The database was developed by the Joint Research
: Contains images of 1,040 individuals (595 males and 445 females). is a large-scale Chinese face database created to
: The full database includes 99,594 images, while a publicly available subset called CAS-PEAL-R1 contains 30,900 images.
: Subjects are photographed wearing different accessories, including various pairs of glasses and different types of caps.
: Images are captured from multiple angles using a horizontal semicircular camera array to simulate different head rotations.