In the bisected laser-based autofocusing
method, when defocus value varies from "inner focus," "outer focus," and "in focus," the semicircular laser spot can theoretically image in three different states as illustrated in Figure 1.
In PA systems used to perform autofocusing
with such devices, the image obtained from the camera is processed by using an appropriate focusing algorithm, and the lens position which yields the clearest image is sought , [32-34].
method based on image processing is applicable for processing an image sequence, such as taking images of the target with multiple focal plane positions.
The CPI-split autofocusing
algorithm is employed in those CPI's which entropy values exceed a threshold that represents an acceptable SAR image quality .
Use of wavelet analysis for improving autofocusing
The proposed autofocusing
algorithm is named "CPI-split autofocusing
", since it consists in the partition and the concatenation of the raw data matrices of two consecutive coherent processing intervals (CPIs).
The X-A2 features Fujifilm's newly developed Eye Detection AF, Auto Macro AF and Multi-Target MULTI AF for fast and accurate autofocusing
. It's also the first X Series model to sport a 175-degree tilting LCD making it easier to take selfies and it comes with the new XC16-50mm F3.5-5.6 OIS II kit lens, which has a class-leading minimum working distance of 15cm (approx.
First, in 1994, as a growing number of professional photographers were making use of the autofocusing
capabilities offered by EOS cameras and EF lenses, Canon launched the EOS-1N camera which featured an increased number of focusing points and enhanced predictive focusing capabilities when tracking moving subjects.
In 1994, as a growing number of professional photographers were making use of the autofocusing
capabilities offered by cameras, Canon launched the EOS-1N, featuring an increased number of focusing points and increased predictive focusing when tracking moving subjects.
Earning special praise, however, was the EOS 70D's Dual Pixel CMOS AF, which the judges called a "breakthrough." The innovative autofocusing
technology makes possible improved tracking capabilities when shooting video to ensure smooth focusing performance similar to that achieved by video camcorders, and fast autofocusing
performance when capturing stills during Live View shooting.
Equipped with a Silent Wave Motor (SWM) for extremely quiet autofocusing
The lens' rear focusing system, high-speed CPU and improved AF algorithm allow for high-speed autofocusing