&lt;title&gt;Modeling of wavefront-coded imaging systems&lt;/title&gt;

Dowski, Edward R.; Kubala, Kenneth

doi:10.1117/12.477572

Cited by 11 publications

(5 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Wavefront coding can be used to suppress aberrations in imaging systems. Focus related aberrations such as defocus 64 , spherical aberration 65 , and axial chromatic aberration 66 , as well as off-axis aberrations including coma, astigmatism 67 , Petzval curvature 126 , and fabrication and assembling errors 93 can all be suppressed by wavefront coding. DOF extension essentially comes from suppressing defocus aberration.…”

Section: Applications Of Wave Front Codingmentioning

confidence: 99%

“…Athermalization of infrared imaging systems is a typical application of wavefront coding. The optical materials of infrared optical systems (such as germanium) are very sensitive to temperature changes, which will lead to changes in the refractive index and geometry of the lens, so thermal defocus 70,126 can be easily produced. In order to ensure that the performance of the infrared imaging system is not affected by temperature, various athermalization methods are needed to eliminate thermal defocus.…”

Section: Applications Of Wave Front Codingmentioning

confidence: 99%

See 1 more Smart Citation

Point spread function engineering based on wavefront phase modulation

Zhang,

Cui,

Yue

et al. 2023

Optoelectronic Imaging and Multimedia Technology X

View full text Add to dashboard Cite

Section: Applications Of Wave Front Codingmentioning

confidence: 99%

Section: Applications Of Wave Front Codingmentioning

confidence: 99%

Point spread function engineering based on wavefront phase modulation

Zhang,

Cui,

Yue

et al. 2023

Optoelectronic Imaging and Multimedia Technology X

View full text Add to dashboard Cite

“…Wavefront Coded imaging systems use aspheric optics to form images with a special-purpose blur that create invariance to many of the optical aberrations including: spherical aberration, field curvature [2], astigmatism, chromatic aberration [3], misfocus, temperature related misfocus [4] and alignment or assembly related misfocus. Linear and/or non-linear signal processing is used to remove the blur and form the image.…”

Section: Wavefront Coded ® Systemsmentioning

confidence: 99%

Computational imaging design tools and methods

Johnson

Macon

Rauker

2004

Novel Optical Systems Design and Optimization VII

View full text Add to dashboard Cite

Systems which transform optical wavefronts into digital information for imagery or machine interpretation lack suitable design tools and methods. In Wavefront Coded® imaging systems in particular, the signal processing and the optics must be jointly considered to achieve an optimal solution. Computational imaging systems have recently been designed at CDM Optics based on human interpretation of images and guided by machine (algorithmic) interpretations. CDM is generating an integrated design package called WFCDesign™ to provide for truly joint optimization of computational imaging systems where both physical and algorithmic goals can be jointly realized with a high degree of efficiency and accuracy. WFCDesign interfaces to a multitude of commercial analysis, design, signal processing, and simulation packages, enabling joint optimization using industry-standard tools. Methods for approaching the optimization problem including merit functions and optimizer issues are discussed. An example of a computational design with Wavefront Coding™ based on a digital algorithm's performance (as opposed to strictly optical metrics such as spot size or aberration curves) is provided. An outline and discussion of the WFCDesign™ package highlights the capabilities of our flexible approach and modular architecture and provides insight into the future of computational imaging design tools.

show abstract

“…Some methods were adopted to control the image misfocus, but these methods may also increase the weight, volume and cost of the remote sensor. This paper introduces a technology named wavefront coding technology [1][2][3][4] for extending the depth of field of incoherent optical systems and mainly studies 3 kinds of phase mask design which is very important in wavefront coding system.…”

Section: Introductionmentioning

confidence: 99%

Research on the effect of phase mask to extend the depth of field of optical system

2007

View full text Add to dashboard Cite

The technique of wavefront coding can extend the depth of field of incoherent optical systems in which the design of phase mask is very important. Several designs of phase mask are proposed in this paper, the MTFs(magnitude of optical transfer function) of these methods are deduced and the figures of MTFs are compared and discussed. The simulation results are presented that MTFs are insensitive to misfocus and never to be zero which would occur in traditional incoherent optical systems. Based on subjective evaluation and quantitative simulation results, we believe that special designof phase masks is effective to expand the depth of an incoherent optical system.

show abstract

<title>Modeling of wavefront-coded imaging systems</title>

Cited by 11 publications

References 4 publications

Point spread function engineering based on wavefront phase modulation

Point spread function engineering based on wavefront phase modulation

Computational imaging design tools and methods

Research on the effect of phase mask to extend the depth of field of optical system

Contact Info

Product

Resources

About