Face recognition is a biological recognition technology based on human facial feature information.
Using a camera or camera to collect images or video streams containing human faces, and automatically detect and track human faces in the images, thus carrying out a series of related technologies on the detected human faces, it is also commonly called Portrait Recognition and facial recognition.
Although it has been developed for more than 30 years, face recognition products are still affected by many factors such as illumination, viewing angle, occlusion, age, etc. There are roughly the following ten difficulties to break through: 1.
Illumination problem due to the 3D structure of the face, the shadow projected by illumination will strengthen or weaken the original face features. 2.
Attitude problem the attitude problem involves facial changes caused by the rotation of the head around three axes in the three-dimensional vertical coordinate system, the depth rotation perpendicular to the two directions of the image plane will cause partial loss of facial information. 3.
Expression problems facial changes such as crying, laughing, anger and so on also reflect the accuracy of facial recognition. 4.
Occlusion problem is a very serious problem for face image acquisition without matching. 5.
Age changes with the change of age, a person changes from a teenager to a young man and becomes an old man. His appearance may change greatly, resulting in a decline in recognition rate.
For different age groups, the recognition rate of face recognition algorithm is also different. 6.
There is little difference between different individuals in face similarity. All face structures are similar, even the structural shapes of face organs are very similar.
Such characteristics are beneficial to the use of human faces for location, but they are unfavorable to the use of human faces to distinguish human individuals. 7.
When dynamic recognition is not compatible with face recognition, the success rate of face recognition will be seriously affected by blurred facial images caused by motion or incorrect camera focus. 8.
The mainstream deception method for face anti-counterfeiting and forgery is to establish a three-dimensional model or graft some expressions. 9.
Image quality problems due to different acquisition devices, the quality of face images obtained is also different, especially for those face images with low resolution, high noise and poor quality. 10.
The lack of samples the FACE image database currently participating in the training is basically the image of foreigners, and the face image database about Chinese and Asians is very few, which makes it more difficult to train the face recognition model.
Although face recognition still has many of the above problems, ptksai's face recognition is much more mature than other products. ptksai's face recognition can be recognized normally and quickly 24 hours indoors and outdoors, it can overcome the influence of wearing glasses, jewelry, posture and expression changes, and has strong environmental adaptability!
Like some companies now work attendance is to use ptksai face recognition technology to check in, face recognition makes your life more convenient!
Shenzhen ptksai Technology Co. , Ltd. was founded in 2009. It is a fast-growing high-tech enterprise group. Its products mainly include: intelligent touch Android all-in-one machine, intelligent touch POS machine, touch Windows intelligent terminal, intelligent digital photo frame, stand-alone and online advertising machine, industrial network equipment and commercial display equipment, video greeting card, professional clock machine, and customized electronic products for major customers.
The company has three technology centers combining production, teaching and research in Xi 'an, Shenzhen and Silicon Valley of the United States. 61 engineers are engaged in software and hardware customization and development across time zones, as well as product front-end research.
In 2017, the company's R & D team contributed nine innovative invention patents.
The high-efficiency intelligent refrigerator and touch POS terminal developed by the company are at the advanced level of the industry. The company is also a solution company for a number of intelligent advertising machines and intelligent digital photo frames, providing complete machines, boards and overall solutions.
The company has three manufacturing bases in Shenzhen Longhua, Shenzhen Shajing and Dongguan Daling Mountain, covering an area of 21500 m² square meters. It has its own high-speed Mounter, injection molding machine, mold workshop and dust-free automatic production line. The annual production capacity of PCBA board is 2. 3 million pieces, the annual output of the intelligent terminal machine is 1. 1 million units, which can provide OEM/ODM/EMS services for world-renowned brands.
At present, the company has passed the certification of quality assurance system ISO9001 and environmental certification system ISO14001, and its products have passed CE, FCC, CCC, U/L, EUP, Rohs, Reach and other certifications. The company looks forward to long-term cooperation with friends at home and abroad.