OKI Develops Video Correction LSI with Built-in Frame Memory for Monitoring Cameras
Significantly improves video quality under low light
[Reference] More details of ML87V21072
Summary and features of ML87V21072
OKI offers a highly sophisticated 3D noise reduction system with frame, field and line correlation through use of a FIFO frame memory in the ML87V21072. Furthermore, with a built-in space filter with edge compensation, the LSI reduces high-pass noise that could not be reduced with 3D noise reduction alone. Because the LSI has a function to determine whether the video is a still picture or a moving video, it can apply stronger noise reduction for still pictures while limiting afterimage in video applications. The LSI includes a function to automatically apply brightness gain correction and color correction after applying noise reduction.
The input interface is compatible with ITU-R BT.656, 510H, 760H CCD sampling, and the output interface is compatible with ITU-R BT.656, 510H, 760H. The LSI is also compatible with analog composite signal and S-video signal through its built-in video encoder, enabling it to directly connect with DSP circuits in CCD image sensor applications.
The ML87V21072 includes function to output high-quality pictures without jaggy lines, thus maximizing the built-in memory, and 2:2 pull-down output for videos and video flip vertical output.
The noise reduction function in ML87V21072 offers high-quality videos and helps to compress video when using MPEG-4. By first applying noise reduction to a video using ML87V21072, and then compressing it with an MPEG-4 encoder LSI, such as OKI's ML86410, the file size can be reduced to approximately one-fifth the size of the original file. By utilizing this LSI in a DVR, one can achieve recording time approximately 5 times longer than with conventional models. In addition, in a MPEG-4 network camera, the chip can deliver high-quality video at a low bit rate.
The ML87V21072 comes in two package sizes: 90pin BGA(6.4mm x 10mm) and 100-pin TQFP(14mm x 14mm). The smaller 90pin BGA is suitable for inclusion on standard boards for monitoring camera modules.
Sales plan
- Product name
- ML87V21072
- Sample price
- 800 yen (excluding tax)
- Sample shipment
- From June 2008
- Volume shipment
- From October 2008
- Sales target
- 200 thousand/ month
Major features
- Built-in memory for frame buffer: Approx. 8Mb FIFO
- Input data format: 8bit Y/CbCr 4:2:2, ITU-R BT.656
- Output data format: 8bit Y/CbCr 4:2:2, ITU-R BT.656
- Number of available sampling for horizontal direction:
NTSC-ITU-R BT.656: available 720 pixels / total 858 pixels
NTSC-CCD-510H: available 512 pixels /total 606 pixels
NTSC-CCD-760H: available 768 pixels /total 910 pixels
PAL-ITU-R BT.656: available 720/ total 864
PAL-CCD-510H: available 512 pixels /total 606 pixels
PAL-CCD-760H: available 768 pixel/ total 908 pixels - 3D noise reduction: frame/field/ line detects 3 correlation noise reduction
- Automatic noise reduction setting: Noise amount feedback, Noise reduction detection switch
- Noise reduction space filter with edge compensation: Filter for moving area, ON/OFF moving
- Low-light intensity/ backlight correction function: Brightness gain correction, Color difference signal correction
- Jaggy-less still picture: Option to choose median/ frame/ field output
- Jaggy-less frame output function:
60i→30p(2-2pull-down) conversion, 50i→25p(2-2pull-down) conversion
- Vertical reversal output function
- Resampling function: Convert from 510H type/ 760H CCD digital output to ITU-R BT.656 compatible format
- NTSC/PAL video encoder function: Composite/ S-Video output
- Serial bus: I²C-bus I/F compatible. Includes Slave/master with no micro controller enabling to set register
- Power supply voltage: 3.3V±0.3V(single)
- Package: 100pinTQFP (TQFP100-P-1414-0.5-K), 90pin BGA (P-TFBGA90-6.4x10.0-0.65)
- Operating temperature: -20 to +75°C
- * Information in the press releases is current on the date of the press announcement, but is subject to change without prior notice.