Image Annotation
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Softechub Services

Capture

Product Image Captioning

Project Type: Bounding Box + Text Caption

Overview

MoonvalleyAI needed clean, attribute-rich captions to train and evaluate a vision-language model. Softechub produced consistent, brand-safe descriptions that capture the main product and key attributes to improve retrieval and classification.

Project Scope

The project involved 150,000 images across apparel, home, beauty, electronics, accessories, and grocery

  • Reviewing a large, multi-category catalog (fashion, electronics, furniture).
  • Writing two captions per image - a concise short caption and a fuller long caption in neutral, brand-safe language.
  • Categorizing each product and tagging key attributes (category, color, material, pattern, style, intended use).
  • Drawing a bounding box around the primary product and additional boxes for multi-product or lifestyle shots when needed.
  • Recording camera details for each image - view and angle (front, side, three-quarter, top-down, close-up).

Our Approach


Expert Annotators - Assembled a retail-domain team trained on product taxonomies and vision-language standards.


Guideline mastery - studied the instructions, ran a quick calibration, and kept a handy style sheet.


Complete captioning - wrote short and long captions that fully describe each product using only what is visible.


Angle capture - logged shot angles consistently with a simple, controlled vocabulary.


Thorough review - peer checks on every item plus supervisor validation to keep quality high.


Expert Annotators - Assembled a retail-domain team trained on product taxonomies and vision-language standards.

Methodology & Quality Assurance

1. Guideline Preparation: Developed clear instructions with visual examples.2. Annotation: Performed initial labeling following consistency rules.3. Review: Conducted second-pass QA, correcting omissions and refining polygon fidelity.4. Metrics: Achieved ≥99% inter-annotator agreement and maintained strict turn-around SLAs.

Screenshots of the project

Case 1

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