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Wednesday, December 15, 2010
What is facial recognition technology for face recognition technology-principle of the
This article describes what is facial recognition technology?, and outlines the facial recognition technology in the realization of the principle and on the tremendous change in photography. What is facial recognition technology? remember a few days ago, Fuji company launched a S6500fd digital camera, Fuji company claims it's "facial recognition technology" new breakthrough with camera smart. But it seems that Nikon a few years ago a small digital cameras have a similar function, but then like Olympus, Pentax also has similar functionality. Simply because we feel that these features dinner, which are not particularly large practical meaning, so there is no heat. The company is expanding today Fuji will this "facial recognition technology" to carry out, whether it be different?, also please and I look at the facial recognition technology is the ability ... Today's automatic camera, especially with a digital camera, autofocus and automatic metering. Apart from the viewfinder, basic also worry about what would not have to go to the AF, adjust the shutter speed, adjust the aperture and complex exposure program. After all, the camera automatically is bound to the machine, sometimes not allowed to appear on a light or out of focus. Over the years, many manufacturers have only improved AF and AE technique, and facial recognition technology is improving derived a fresh stuff. Face detection face recognition technology principle sounds and not esoteric, it passed the identification screen the eyes, mouth, and other characteristics of the information, lock screen face location and automatically will face as the body of the shooting, setting accurate focus and exposure. When Face detection face recognition function started work, the camera will automatically adjust screen position of the face and illuminance for settings to ensure that people face in a clear and accurate exposure. In addition, when the image has multiple personalities, Face detection face recognition function is able to select the most precise work, the main object. Facial recognition technology in the previous film, how to handle the characters and background of the relationship has always been a troublesome problem: If the character is not in the middle of the viewfinder, the camera will focus on in the distant background, lead character fuzzy; when the characters and the background brightness varies considerably, it can cause a person to face underexposed or excessive. To address these issues, professional digital camera equipped with a "5 points, 9-point AF system" and "surface metering, spot metering, surrounded by metering" metering system, plus the "AE/AF lock". This complex is set on the photographer's experience and finger flexibility is a huge challenge, but many do not have these features of digital camera, the photographer is completely helpless. Facial recognition technology Face Detection technologies, this problem no longer exists. This technology enables the camera to automatically identify whether someone in the face, and automatically will face as the body of the shooting. Then, the camera in focus and exposure control areas will face adjustment of status. This is a smart feature brings two of the most direct benefit: one is to give photographers more concentrated effort in the viewfinder, you can achieve more perfect composition; the second is to improve the speed of the shot. For example, Fuji's Face detection face recognition feature is based on the hardware implementation, which is in the camera's processing chip have specialized integrated circuits to operate each processing time not to 0.05 seconds, compared to the previous "at the main-half press the shutter – press the AE/AF lock-viewfinder" process, a lot faster, better suited to capture needs.
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