Research Article
Hardware Design Considerations for Edge-Accelerated Stereo Correspondence Algorithms
Table 1
Features of the FPGA Prototypes.
| Feature | Fixed-support-based architecture | ADSW-based architecture |
| Adopted algorithm | SAD-based Fixed-support algorithm | Adaptive-support weight algorithm | Image size | pixels (8-bit grayscale) | pixels (24-bit RGB color images) | Disparity range | 120 | 64 | Support window size | | | Device | Virtex-5 LX110T FPGA | Virtex-5 LX110T FPGA | Frequency | 100 MHz | 155 MHz | Memory bandwidth | 32 bits/cycle | 48 bits/cycle | Processing speed | 150 fps | 30 fps |
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