High-definition pavement image acquisition method and apparatus

The invention discloses a high-definition pavement image acquisition method and an apparatus. The apparatus comprises two linear array cameras and two lasers aiming at pavement image acquisition. The left laser illuminates for the right camera, and the right laser illuminates for the left camera, such that a diagonal illumination mode is carried out for pavement image acquisition; the lasers diagonally illuminate the cameras; and the illumination projected by the laser ray on the ground turns small uniformly from the near to the distant.