Dictionary

defocus en · NOUN

Pronunciation

• /diːˈfəʊkəs/ (UK)
• /diˈfoʊkəs/ (General-American)

Etymology

Etymology tree Proto-Indo-European *de Proto-Indo-European *-h₁ Proto-Indo-European *déh₁ Proto-Italic *dē Latin dē Latin dē-der. English de- English focus English defocus From de- + focus.

Meanings

1. (uncountable) The process of going out of focus.
2. (uncountable) The distance by which the focal point is in front of (positive defocus) or beyond (negative defocus) the image or target surface.
   • Fundamental to the concept of recovering the depth by measuring defocus is the relationship between the focused and the defocused images of a scene. 2012, Subhasis Chaudhuri, A. N. Rajagopalan, Depth From Defocus: A Real Aperture Imaging Approach, page 16:

defocus en · VERB

Pronunciation

• /diːˈfəʊkəs/ (UK)
• /diˈfoʊkəs/ (General-American)

Etymology

Etymology tree Proto-Indo-European *de Proto-Indo-European *-h₁ Proto-Indo-European *déh₁ Proto-Italic *dē Latin dē Latin dē-der. English de- English focus English defocus From de- + focus.

Meanings

1. (transitive) To cause (a lens, or a beam of light or particles, etc.) to be out of focus.

Forms