y*b
发帖数: 3190 | 1 "TOKYO, August 31, 2016—Canon Inc. today announced that it has developed a
new CMOS sensor equipped with a global shutter function that, because it
exposes all of the sensor’s pixels at the same time, enables the capture of
distortion-free images even when shooting fast-moving objects. Employing a
new signal-readout drive system and new pixel structure that significantly
expands the full well capacity and reduces noise, the sensor contributes to
high-image-quality video capture by making possible the realization of a
wide dynamic range.
Distortion-free image capture when shooting fast-moving objects
Standard CMOS sensors make use of the rolling shutter method, which
sequentially exposes the pixels one row at a time. Because rolling shutters
can create slight discrepancies in signal-readout timing depending on the
location of the pixel, images of fast-moving objects may appear distorted
and flash photography may result in the occurrence of the flash band
phenomenon, in which the upper and lower portions of images display
different levels of brightness. Because Canon’s newly developed CMOS sensor
employs a global shutter; when shooting such fast-moving objects as a
rotating propeller or a speeding train, subjects are able to retain their
proper form to create distortion-free images. Enabling the confirmation of
object shapes with a high degree of accuracy, the sensor offers potential
benefits in industrial applications, including as a sensor for use in
inspection cameras.
Wide dynamic range realized through new proprietary drive method and pixel
structure
When the newly developed CMOS sensor converts light into electrical signals
and stores the signal charge in memory, the new drive system achieves a
significant expansion in full well capacity. Also, because it employs a
structure that efficiently captures light and each pixel incorporates an
optimized internal configuration, the sensor makes possible increased
sensitivity with reduced noise. The expanded full well capacity, realized
through the sensor’s new drive system, and substantial reduction in noise,
enabled by the new pixel structure, combine to deliver a wide dynamic range,
facilitating the capture of high-image-quality, high-definition footage
even when shooting scenes containing large variances in brightness.
Canon will explore various industrial and measurement applications for the
newly developed CMOS sensor and consider deploying it in the field of video
production for cinema production applications, TV dramas, commercials and
more."
Read more: http://www.canonrumors.com/canon-announces-cmos-sensor-with-global-shutter/#ixzz4IudNHR00 | e**n
发帖数: 5876 | 2 这个也不知道sensor有多大,像素多少. 做一个像素的肯定容易.
P+当年说GH2就要用global shutter, 6年过去了....
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【在 y*b 的大作中提到】
: "TOKYO, August 31, 2016—Canon Inc. today announced that it has developed a
: new CMOS sensor equipped with a global shutter function that, because it
: exposes all of the sensor’s pixels at the same time, enables the capture of
: distortion-free images even when shooting fast-moving objects. Employing a
: new signal-readout drive system and new pixel structure that significantly
: expands the full well capacity and reduces noise, the sensor contributes to
: high-image-quality video capture by making possible the realization of a
: wide dynamic range.
: Distortion-free image capture when shooting fast-moving objects
: Standard CMOS sensors make use of the rolling shutter method, which
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