Table 8 For performance metrics results.

From: AI-powered BlindSpot VisionGuide system on raspberry Pi for enhancing independence of visually impaired users

Metric

Result

Caption Accuracy (BLEU ~ proxy)

92.5%

Inference Time (end-to-end)

4.5 s per image (avg., CPU)

Model Load Time (initial run)

 ~ 12 s

RAM Usage (peak during run)

 ~ 820 MB

TTS Response Latency

 ~ 0.5 s

Offline Functionality

Supported after initial model caching