Definition

1. Noun:
   • Iconometer: A specialized optical instrument used in surveying and photography to measure distances or to determine the scale of objects within a photograph by using a known reference dimension.

Usage Examples

• Noun:
  • Nhà khảo sát sử dụng ảnh kế để tính toán khoảng cách từ ảnh chụp trên không. (The surveyor used an iconometer to calculate distances from the aerial photograph.)
  • Ảnh kế là một công cụ hữu ích trong ngành trắc địa ảnh. (The iconometer is a useful tool in the field of photogrammetry.)

Advanced Usage

• The term "ảnh kế" is a technical, historical term. In modern practice, its functions have largely been superseded by digital photogrammetric software and advanced surveying equipment.

Variants and Related Words

• Máy đo ảnh: Photogrammetric instrument.
• Dụng cụ trắc địa ảnh: Photogrammetric surveying tool.

Synonyms

• Iconometer: The direct English equivalent.
• Photo scale measurer: A descriptive synonym.
• Photogrammetric ruler: A tool for measuring photo scales.

Related Terms

• Trắc địa ảnh (Photogrammetry): The science of making measurements from photographs, the field in which an ảnh kế is used.
• Bản đồ ảnh (Photomap): A type of map produced using photogrammetric techniques.