The design of compressed memory system for depth data in 3D rendering processors

Woo-Chan Park; Duk-Ki Yoon; Dong-Seok Kim; Hong-Sik Kim; Jin-Hong Park; Woo-Nam Jeong; Tack-Don Han

doi:10.1587/elex.7.1622

LETTER

The design of compressed memory system for depth data in 3D rendering processors

Woo-Chan Park, Duk-Ki Yoon, Dong-Seok Kim, Hong-Sik Kim, Jin-Hong Park, Woo-Nam Jeong, Tack-Don Han

Author information

Keywords: graphics processor, memory system, compression

JOURNAL FREE ACCESS

2010 Volume 7 Issue 21 Pages 1622-1628

DOI https://doi.org/10.1587/elex.7.1622

Details

Abstract

We propose an effective compressed memory system to address bandwidth problem of depth data for low-power 3D rendering processors. The proposed memory system performs on-the-fly compression for depth data to be stored into external memory. If the compression rate meets or exceeds a selected threshold value, then the compressed depth data are stored into internal SRAM; otherwise the original depth data are stored into external DRAM. Experimental simulation results show that the proposed memory system could reduces the external DRAM usage by about 82%.

Corresponding author

Register with J-STAGE for free!