Table 1 Comparison of representative pretrained assistive systems.

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

Model

Application

Inference speed

Accuracy

Resource usage

Notes

YOLOv3

Object Detection

Fast

Medium

High

Multi-object detection in real-time

ResNet50

Image Classification

Moderate

High

High

Accurate feature extraction

MobileNetV2

Embedded Assistive

Fast

Medium

Low

Suitable for Raspberry Pi and edge devices

BLIP / ViT-GPT2

Image Captioning

Moderate

High

Moderate

Rich semantic captions with transformer