Cas Peal Review

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 .

: Images are captured from multiple angles using a horizontal semicircular camera array to simulate different head rotations.

: Features images taken under 15 different lighting directions to test an algorithm's robustness to shadows and illumination changes. Database Specifications

: Includes various facial expressions such as neutral, smile, surprise, frown, and closed eyes.

: Contains images of 1,040 individuals (595 males and 445 females).

: The full database includes 99,594 images, while a publicly available subset called CAS-PEAL-R1 contains 30,900 images.

: The dataset provides metadata such as eye positions, face pose angles, and expression labels to help refine detection systems.

The database systematically varies images across these categories: