Tutorials Optics and Optical Images

Optics and optical images

Tutorials on optical image formation: how scene radiance becomes the irradiance arriving at the sensor. See Optics and Optical Images for the conceptual page and Tutorials for the full topic index.

Optical image basics

• t_oiIntroduction (source) Introduces the optical image object and its relationship to the scene.

• t_oiRadiance2Irradiance (source) Shows how oiCompute converts scene radiance into optical-image irradiance.

• t_oiPrinciples (source) Illustrates the principles behind the optics calculations that produce the optical image.

Wavefront and diffraction

• t_wvfOverview (source) Introduces the wavefront representation of a shift-invariant optical system and its relationship to the point spread function.

• t_wvfZernike (source) Explains the Zernike polynomial parameters used to describe wavefront aberrations.

• t_wvfMTF (source) Computes the modulation transfer function (MTF) and point spread function (PSF) from a wavefront, including the effect of defocus.

• t_opticsAiryDisk (source) Computes the Airy disk, the diffraction-limited blur of a circular aperture.

Ray trace and image-plane effects

• t_oiRTCompute (source) Runs a ray-trace optics calculation using multi-element lens data.

• t_opticsFresnel (source) Calculates Fresnel reflectance and transmission at an optical interface.

• t_opticsBarrelDistortion (source) Demonstrates removing barrel distortion from an image.

For depth-dependent effects (defocus, bokeh, light fields) and multi-element lens prescriptions beyond the planar-scene models above, see ISET3D.

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• Sensors and camera systems
• Image processing, color, metrics, and displays