Palmprint/Palm Vein Recognition Algorithm_Xian Xitu Zhiguang Intelligent Technology Co., Lt

Technology

Strong live attribute and high anti-counterfeiting security

The palm vein relies on the infrared absorption characteristics formed by the flow of live blood, and photos, printing, silicone/resin fake palms, and video remakes cannot be forged, naturally possessing the ability to live.
Compared to 2D faces, it is more difficult to attack and more difficult to replicate than fingerprints, making it suitable for high security scenarios.
Stable features, strong uniqueness, and low misidentification rate

The venous structure remains largely unchanged throughout adulthood and is not affected by age, skin aging, or short-term injuries.
Each person's palm vein topology is highly unique, even twins have significant differences, with high recognition accuracy and excellent FRR/FAR performance.
Non contact, hygienic and friendly, with a good user experience

Hanging/close range collection, no need to touch equipment, avoid cross infection, suitable for hospitals, schools, public access control, elevators, and turnstiles.
The movement is natural (just raise your hand), more comfortable than fingerprints and finger veins, and highly accepted by users.
Strong robustness to external conditions

Not affected by dryness, peeling, oil stains, calluses, and shallow scars on the hands, much more stable than fingerprints.
Not sensitive to light (mostly using near-infrared acquisition), it can work stably indoors and outdoors, under weak/strong light.
Compatible with wearing thin gloves (supported by some solutions), more suitable for cold/high hygiene environments than human faces.
Large collection area and high fault tolerance

The palm area is much larger than a single finger, with rich feature points and minimal impact of local occlusion/posture deviation.
Higher tolerance for placement angle and distance, easier to pass through in one go, and faster recognition speed.
Good privacy, more secure data

Venous features are located subcutaneously, invisible, non replicable, and difficult to steal through covert filming.
Templates are usually stored encrypted, making it difficult to reverse engineer the original image and reducing compliance and privacy risks.
Suitable for long-distance/high traffic scenarios (medium to long-distance solutions)

The long-distance palm vein can achieve seamless/semi seamless passage, suitable for turnstiles, park entrances and exits, subway security checks, and office attendance.
In scenarios with high pedestrian flow, the pass rate is high and the queuing pressure is low, providing an experience close to "brushing hands to pass".
Strong fusion recognition ability, further improving accuracy

Palmprint (epidermis) and palmar vein (subcutaneous) can be fused in multiple modalities to further reduce misidentification rates and enhance robustness in extreme scenarios.
It can be combined with facial recognition, iris recognition, passwords, etc. to form a higher level of security for multi factor authentication.