Title :
A single chip image processor for various in-car display equipments
Author :
Ogawa, Yoshihiro ; Kato, Yoshiyuki ; Shinohara, Takashi ; Fujita, Takeo ; Minegishi, Noriyuki
Author_Institution :
Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kamakura, Japan
Abstract :
This paper presents a single chip image processor for various in-car equipments such as car navigation system, rear seat entertainment and rear camera display. There are four IPs*1 to enhance image quality on the chip for the various in-car display products. The chip has a camera image compensation IP (four times more high-sensitivity, 50% noise reduction, distortion correction of 190-degree input field angle), a graphics rendering IP(draws 640Mpix/s), a high-quality image processing IP(super-resolution, NCM*2, dynamic gamma), an environment adaptation IP(brightness sensitivity, backlight control). We also developed an arbitrary frequency clock generation IP to generate frequency clock from 4.6 MHz to 162MHz on a small scale circuit. It is suitable for display of any format from QVGA to WXGA. In addition input-output video resolution, format, number of channel, external VRAM memory type and CPU interface are set flexibly depending on in-car equipment. The chip fabricated with 65nm 8-metal CMOS technology. Number of gates is 4.8Mgate and 4.1Mbit memory. Maximum operation frequency is 648MHz. Power consumption is 1.6W.
Keywords :
CMOS image sensors; automobiles; cameras; computer displays; distortion; image enhancement; image processing equipment; image resolution; industrial property; microprocessor chips; random-access storage; rendering (computer graphics); video signal processing; 8-metal CMOS technology; CPU interface; QVGA; WXGA; camera image compensation IP; chip fabrication; environment adaptation IP; external VRAM memory type; frequency 4.6 MHz to 162 MHz; frequency clock generation IP; graphics rendering IP; high-quality image processing IP; image quality enhancement; input-output video resolution; maximum operation frequency; power consumption; single chip image processor; size 65 nm; various in-car display equipment; Cameras; Clocks; Frequency conversion; Image processing; Phase frequency detector; Rendering (computer graphics); Synchronization;
Conference_Titel :
Consumer Electronics (ICCE), 2012 IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4577-0230-3
DOI :
10.1109/ICCE.2012.6161879