Dataset

LensBench

Contains 4,800 image-instruction segmentation samples as 1,200 paired units across general, aerial, driving, and panoramic images.

Hugging Face ↗Oct 19, 2026Paper ↗Code ↗

  • cv
  • multimodal
  • referring-expression-segmentation
  • visual-grounding
  • implicit-instructions
Detailed model pipeline showing LLM backbone, mask decoder head, and token flow
Detailed model pipeline showing LLM backbone, mask decoder head, and token flow

What it is

Benchmark for instruction-conditioned image segmentation across explicit vs implicit wording, target count, and four visual domains. 4,800 image-text-mask samples organized as 1,200 human-reviewed paired units across 4 domains, crossing explicit/implicit instructions with single/multiple targets.

Key results

  • 4,800 instruction-level samples
  • 1,200 paired evaluation units across 4 domains
  • Image + English instruction + COCO RLE mask; Apache-2.0

Useful for evaluating segmentation models on explicit vs implicit referring instructions across diverse image domains.

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