A Design of Real-Time JPEG Encoder for 1.4 Mega Pixel CMOS Image Sensor SoC(<Special Section>Papers Selected from ITC-CSCC 2004)

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概要

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• In this paper, we propose a hardware architecture of real-time JPEG encoder for 1.4 mega pixels CMOS image sensor SoC which can be applied to mobile communication devices. The proposed architecture has an efficient interface scheme with CMOS image sensor and other peripherals for real-time encoding. The JPEG encoder supports the baseline JPEG mode, and processes motion images of which resolution is up to 1280×960 (CCIR601 YCrCb 4 : 2 : 2, 15fps) by real-time processing. The JPEG encoder supports 8 types of resolution, and can serve the 4 levels of image quality through quantization matrix. The proposed JPEG encoder can transfer encoded motion pictures and raw image data from CMOS image sensor to external device through USB 2.0 and a compressed still image is stored at external pseudo SRAM through SRAM interface. And proposed core can communicate parameters of encoding type with other host by I2C. The proposed architecture was implemented with VHDL and verified for the functions with Synopsys and Modelsim. The encoder proposed in this paper was fabricated in process of 0.18μ of Hynix semiconductor Inc.

• 社団法人電子情報通信学会の論文
• 2005-06-01

著者

• CHONG Jong-Wha

  Department of Electronics and Computer Engineering, Hanyang University

• Chong Jong‐wha

  Hanyang University

• Chong Jong-wha

  Department Of Electronics Engineering Hanyang University

• Chong Jong-wha

  Department Of Electronics And Computer Engineering Hanyang University

• Min Kyeong-yuk

  Department Of Electronics Engineering Hanyang University

• CHONG Jong-wha

  Department of Elec. & Comp. Engineering, Hanyang University

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