ISP Milbeaut Image Signal Processor: Milbeaut あらまし MilbeautISP Image Signal Processor 20 Mpixel Milbeaut6 MB91696AM MB91696AM Abstract Milbeaut is an image signal processor (ISP) that realizes a digital camera system on one chip. It can capture signals from various types of image sensors and then enhance the image quality and store the data as still images of over 20 megapixels or full highdefinition (HD) moving images. This paper presents MB91696AM, the sixth generation of the Milbeaut series. MB91696AM offers high-speed continuous shooting and full HD moving image shooting that have been enabled by the new high-speed signal processing platform developed, noise reduction performance and optical correction functionality enhanced generation by generation, and the general-purpose image processing macro that accurately meets the market s requirements. Camera users want digital cameras to have a higher pixel density, be faster and be multifunctional. This ISP product, which has realized high performance and high image quality that fulfill a range of camera users demand for still images and full HD moving images, is used in many digital cameras. FUJITSU. 63, 4, p. 361-367 07, 2012 361
ISP Milbeaut まえがき 1 5000 ISP Image Signal Processor ISP ISP MB91696AM 20 Mpixel 100 Mpixel/s 1920 1080 pixel/30 fps ISP 製品概要 MB91696AM Milbeaut 1 Milbeaut 2000 M-1 MB91696AM 6 ARM ARM 2 CPU JPEG HD DDR3/DDR2SDRAM USB2.0 LSI H.264 HD MB91696AM 図 -1 図 -2 65 nm CMOS CPU 288 MHz 216 Mpixel/s H.264/MPEG-4 AVC HDMI FBGA-385 13 mm 高速処理 MB91696AM MB91696AM I/F AE/AF/AWB JPEG H.264 OSD D-LCD I/F HDMI I/F C-DAC LCD I/F HDMI Tx Video SDRAM I/F PWC RTC GPIO AD I 2 C UDC PWM CPU UART CSIO CPU DMAC ARM PC/USB -1 MB91696AM 362 FUJITSU. 63, 4 07, 2012
ISP Milbeaut -2 MB91696AM ARMプロセッサを2 個搭載 MB91696AM ARM ARM 1 2 3 4 ARM2 CPU OS CPU CPU CPU HDR High Dynamic Range 1920 1080 pixel/30 fps 処理プロセスの最適化 ISP Bayer 1 MB91696AM Bayer 2 SDRAM CPU CPU 高速連写 Bayer MB91696AM 216 Mpixel/s Bayer DDR3/DDR2SDRAM DDR3 SDRAM 2.5 100 Mpixel/s UHS-I SDR50SD 1 R G B 2 BayerRGB FUJITSU. 63, 4 07, 2012 363
ISP Milbeaut JPEG MB91696AM 5 814 Mpixel 高画質化技術 1/2.3 6.2 mm 4.6 mm 1500 1 図 -3 2011 11.7 m 2 S/N ISP Milbeaut Bayer 配列信号に対する高画質化処理 MB91696AM Bayer SDRAM Bayer MB91696AM 50 45 1 18 16 40 14 35 12 1 µm 2 30 25 20 15 10 8 6 Mpixel 10 4 5 2 0 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 0-3 364 FUJITSU. 63, 4 07, 2012
ISP Milbeaut 図 -4 図 -5 デモザイク後の高画質化処理 RGBYC LPF Low Pass Filter HPF High Pass Filter フルハイビジョン動画対応 デジタルカメラ専用コーデックエンジン 2008 MB91696AM Milbeaut 1920 1080 pixel/30 fps AV H.264-4 -5 FUJITSU. 63, 4 07, 2012 365
ISP Milbeaut H.264 HD MB91696AM WDR Wide Dynamic Range ノイズ除去 H.264 多機能化 MB91696AM 顔検出 MB91696AM 自動シーン認識 HDR 補正 MB91696AM むすび ISP MB91696AM Milbeaut 366 FUJITSU. 63, 4 07, 2012
ISP Milbeaut 参考文献 1 Milbeaut http://jp.fujitsu.com/microelectronics/products/assp/ milbeaut/ 著者紹介 遠藤謙太郎 ( えんどうけんたろう ) FUJITSU. 63, 4 07, 2012 367