60fps possible from the CMOS sensorPress release:
Sony has now developed the IMX017CQE, a high-speed/high-resolution CMOS
sensor that can output 6.4M-pixel images at 60fps. This sensor can also
capture 6.4Mp high-resolution still images during moving images capture
without interrupting the moving images capture. This allows it to
implement seamless imaging in which the user has no need to be aware of
the boundary between still and moving imaging. It furthermore supports
300fps ultrahigh-speed imaging, making it possible for consumer cameras
to capture moving images without missing any of the decisive moments
that were previously impossible to capture. Image sensors have seen
continuous progress in total pixel counts and, at the same time, in
reduced feature sizes in the pixels. Now, by striving for higher speeds
in addition to excellent picture quality, Sony is about to create a
whole new market for image sensors.
- Diagonal 9.10 mm (Type 1/1.8"), 6.4Mp effective pixels
- Pixel size: 2.5 μm unit pixel
- 12-bit column A/D converter readout
- Supports 60fps transfer video capture and provides seamless
between still and moving modes.
- High-speed output interface: 12-bit parallel LVDS with 432
- Dual power supply drive (Analogue: 3.0V, Digital: 1.8V)
In the IMX017CQE, Sony has achieved fast image acquisition and
reproduction of high picture quality still images and moving images by
skillfully combining the speed and integration characteristics of the
CMOS sensor technology in the readout and other peripheral circuits.
Column A/D Converter Readout
The IMX017CQE integrates a separate A/D converter for each column, and
performs A/D conversions in a column-parallel manner. This makes it
possible to read out 6.4M pixels at the high speed of 60fps.The
column-parallel A/D conversion method allows a much longer time to be
spent on each conversion compared to the earlier pixel-at-a-time
conversion, and thus is a structure that is effective at reducing
random noise in the system.
Increased Pixel Count and Improved High Picture Quality
To achieve high resolution and high sensitivity, Sony optimized the
pixel process technology and the pixel layout and achieved a
sensitivity of 4200e- (at 3200K, 706 cd/m2, and 1/30 s accumulation) in
a 2.5 μm unit pixel size.
Extensive Set of Readout Modes
The IMX017CQE provides three basic readout modes: a 6.4M-pixel, 60
frame/s mode that outputs 10-bit data at a pixel rate of 432 MHz, a
2×2 addition mode that supports high picture quality moving
images, and a 3×3 addition mode that supports the
conventional SD mode. In addition, it also provides a 12-bit output
mode and is capable of producing 6.4M pixels 12-bit high-resolution
images at 15 frame/s.
The IMX017CQE also features a vertical 1/5-line readout mode in which
it is capable of 300 frame/s moving imaging, and makes it possible to
see instants that could not be captured previously.
Seamless Mode Transitions
Invalid frames (dropped frames) do not occur when switching from high
picture quality moving image mode to still image mode, or in the
reverse transition. Thus the IMX017CQE can capture 6.4M pixels
high-resolution still images during moving image capture without
interrupting the moving image capture.
Built-in Peripheral Circuits
The IMX017CQE includes many of its peripheral circuits, including the
horizontal and vertical drive circuits, a PLL circuit, an internal
reference voltage generating circuit, and an LVDS interface.
The Sony technical team commented, "Although we ran into
several difficulties due to the large number of new elements involved,
the project team worked together as an integrated unit to resolve these
issues. After that, all we had to do was to wait for mass production. I
hope everyone will be able to experience the new world of digital
imaging born from the fusion of still and moving imaging."