Nikon Scene Recognition System for more accurate automatic focus, exposure and white balance.
Nikon Australia is pleased to announce the introduction of their new Scene Recognition System, which recognizes a subject or scene prior to capture, then, using information from the 1,005-pixel RGB sensor – the eye of 3D color matrix metering that enables highly precise exposure control utilizing color information – applies that information to achieve more accurate autofocus, auto exposure and auto white balance control.
Until recently, the 1,005-pixel RGB sensor was mainly used for exposure metering. The new Scene Recognition System, however, utilizes information from the sensor to detect subject and scene brightness and evaluate color conditions prior to capture. Specifically, it conducts subject identification and tracking, highlight analysis and determines the light source. This data is then reflected in autofocus, auto exposure and auto white balance for greatly improved accuracy and control.
Subject tracking: This function uses output from the 1,005-pixel RGB sensor to recognize the color of a subject within a user-selected focus point, then follows the subject’s movement by detecting the identical or most-similar color segment. This information is then used by Dynamic AF to improve backup capability when the subject is out of the selected area. Newly employed “3D tracking” mode shifts the focus point automatically to respond to the subject’s movements.
Subject identification: Information from the 1,005-pixel RGB sensor is used to determine sky, background and foreground, and the subject. This data is then applied to Auto-area AF mode, which gives greater priority to the subject’s position.
Auto exposure application
Highlight analysis: Information from the 1,005-pixel RGB sensor is utilized to precisely detect highlights within the frame. This data is then applied to color matrix metering and
i-TTL balanced fill-flash, and the brightness range to be reproduced is calculated to realize more precise exposure control.
What’s more, to ensure even greater accuracy in the application of highlight analysis results, the 3D color matrix metering II algorithm has been further refined. By taking advantage of these new tone features, we aim to achieve exposures of optimum brightness that permit printing of JPEG images without having to resort to post-processing or enhancement.
Auto white balance application
Light-source identification: Using extracted characteristics information from the 1,005-pixel RGB sensor, the scene is recognized.
Correctly identifying the light source ensures more accurate white balance, even in a situation where it is difficult to determine it with conventional auto white balance.
The new Scene Recognition System will be employed initially in the D3 and D300, and will be progressively introduced to a range of Nikon digital cameras in the future.