《renlianshibie》由会员分享，可在线阅读，更多相关《renlianshibie（4页珍藏版）》请在金锄头文库上搜索。
1、General practice, including face recognition face recognition system to build a series of related technologies, including facial image capture, face orientation, face recognition preprocessing, identification and identity lookup etc.; and refers specifically to the narrow face recognition by human f
2、ace identification or identity search technologies or systems.Face recognition is a hot research field of computer technology, it belongs to the biometric identification technology, is the organism (usually refers specifically to people) to distinguish their biological characteristics of individual
3、organisms. Biometric identification biometric technology research, including face, fingerprint, hand palm prints, iris, retina, voice (voice), body shape, personal habits (such as intensity and frequency of keystrokes, signature), etc., the corresponding identification technology, some people face r
4、ecognition, fingerprint recognition, palm recognition, iris recognition, retina recognition, voice recognition (voice recognition can be used for identification, the content can also be voice recognition, only the former part of biometric identification technology), shape recognition, keyboard, perc
5、ussion recognition, signature recognition.The advantage of face recognition and in their natural individual is not aware of the characteristics measured. The so-called natural, refers to the means of identification with the human (or even other organisms) for individual identification when using the
6、 same biometric. Such as face recognition, human face is distinguished by observation and comparison and identification, and the other has a natural sexual identification as well as voice recognition, shape recognition, and fingerprint recognition, iris recognition is not a natural, because the huma
7、n or other Biology does not distinguish individuals by such biological characteristics.Not be aware of the characteristics for an identification method is also very important, which makes the identification method is not objectionable, and because it is not likely to cause peoples attention and not
8、easy to be deceived. Face recognition has this characteristic, it is fully visible for the use of facial image information, as opposed to fingerprint or iris recognition, requires the use of electronic pressure sensors capture fingerprint or iris image acquisition using infrared, these special acqui
9、sition mode is very easy be noticed, and thus more likely to be disguised to deceive.Although face recognition has many other advantages of recognition can not be compared, but there are many difficulties of its own. Face recognition is considered the biometric field, even field of artificial intell
10、igence research one of the most difficult. Face recognition is face difficulties as the main biometric characteristics brought about. Face in the visual features are:1 not very different between different individuals, all have similar facial structures, organs and even the structure of the face shap
11、e is very similar. This face is characterized by the use of positioning is good, but distinguish between the use of the individual human face is detrimental.2 face shape is very unstable, people can generate a lot of changes in facial expression, but in different observation angles, the human face o
12、f visual images is also a big difference, in addition, face recognition is also affected by lighting conditions (such as during the day and night, indoor and outdoor, etc.), face a lot of cover material (such as masks, sunglasses, hair, beard, etc.), age, and many other factors.In face recognition,
13、the first change is the distinction between the individual should be enlarged and as a standard, while the second type of change should be eliminated, because they can represent the same individual. The first change is usually called the between-class variation (inter-class difference), but said the
14、 second change in the within-class variation (intra-class difference). For the face, within-class variation is often greater than between-class variation, so that by the within-class variation in the case of interference between the change in the use of class distinction between the individual becom
15、es very difficult.Google has a new generation of Android 4.0 system designed UI, interface to simplify, speed capacity building. The new system is built-in wallpaper, use the phone button on the touch will be glow, and increased voice input, face recognition, photo editing, traffic monitoring, Andro
16、id Beam function.The new system allows users to applications on the phone and plug-ins on the main screen, the user need not enter into the application inside the thumbnail you can see some of the latest information. New version of the system to achieve a user interface sliding around, looking for user-friendly application. In addition, users can also expand the application interface for free.Latest system, the folder can drag the program to change the program location; while folders can a
