Liveness detection method, liveness detection system, and computer program product

A liveness detection system, comprising:

• a structured light source module for emitting structured light to irradiate an object to be detected;
• an image data obtaining module for obtaining first facial image data of the object to be detected under irradiation of the structured light;
• and
• a liveness detecting module for determining, based on the first facial image data, a detection parameter that indicates a sub-surface scattering intensity of the structured light on a face of the object to be detected, and determining, based on the detection parameter and a predetermined parameter threshold, whether the object to be detected is a living body.

A liveness detection device, comprising:

• a processor;
• a memory;
• and
• computer program instructions stored in the memory and when run by the processor, configured to cause the liveness detection device to perform a liveness detection method comprising the following steps:
• irradiating an object to be detected with structured light;
• obtaining first facial image data of the object to be detected under irradiation of the structured light;
• determining, based on the first facial image data, a detection parameter that indicates a sub-surface scattering intensity of the structured light on a face of the object to be detected;
• and
• determining, based on the detection parameter and a predetermined parameter threshold, whether the object to be detected is a living body.