Software Based Visual Aberration Correction for HMDs

Xu, Feng; Li, Dayang

doi:10.1109/vr.2018.8447557

Cited by 7 publications

(6 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Through the application of vision simulation, the presented imagery can be preprocessed with the inverse aberrations of the wearer, similar to certain vision-correcting displays. Such an enhancement of head-mounted devices eliminates the need to wear glasses, facilitating their use and further improving the convenience of users [102].…”

Section: Vision-correcting Devicesmentioning

confidence: 99%

Rendering algorithms for aberrated human vision simulation

Csoba

Kunkli

2023

Vis. Comput. Ind. Biomed. Art

View full text Add to dashboard Cite

Vision-simulated imagery―the process of generating images that mimic the human visual system―is a valuable tool with a wide spectrum of possible applications, including visual acuity measurements, personalized planning of corrective lenses and surgeries, vision-correcting displays, vision-related hardware development, and extended reality discomfort reduction. A critical property of human vision is that it is imperfect because of the highly influential wavefront aberrations that vary from person to person. This study provides an overview of the existing computational image generation techniques that properly simulate human vision in the presence of wavefront aberrations. These algorithms typically apply ray tracing with a detailed description of the simulated eye or utilize the point-spread function of the eye to perform convolution on the input image. Based on the description of the vision simulation techniques, several of their characteristic features have been evaluated and some potential application areas and research directions have been outlined.

show abstract

Section: Vision-correcting Devicesmentioning

confidence: 99%

Rendering algorithms for aberrated human vision simulation

Csoba

Kunkli

2023

Vis. Comput. Ind. Biomed. Art

View full text Add to dashboard Cite

show abstract

“…Itoh et al [12] corrects the defocus aberration for optical see-through headsets by overlaying a compensated image in the user's view. Xu et al [13] use gradient-based priors to achieve realtime visual aberration correction for VR HMDs.…”

Section: Algorithmic Prescription Correctionmentioning

confidence: 99%

“…While algorithmic approaches are better alternatives compared to hardware solutions [8][9][10][11][12][13], their performance is dictated and limited by how they process the specific display's backlight response to human eyes. In the conventional algorithmic approach, it is assumed that each color channels of RGB correspond one-to-one relation with retinal cells (see Fig.…”

Section: Introductionmentioning

confidence: 99%

ChromaCorrect: Prescription Correction in Virtual Reality Headsets through Perceptual Guidance

Akşit¹,

Güzel²,

Beyazian³

et al. 2023

Preprint

View full text Add to dashboard Cite

A large portion of today\'s world population suffers from vision impairments and wears prescription eyeglasses. However, prescription glasses causes additional bulk and discomfort when used with Virtual Reality (VR) headsets, negatively impacting the viewer\'s visual experience. In this work, we remedy the usage of prescription eyeglasses with screens by shifting the optical complexity into the software. Our proposal is a prescription-aware rendering approach for providing sharper and more immersive imagery for screens, including VR headsets. To this end, we develop a differentiable display and visual perception model encapsulating the human visual system\'s display-specific parameters, color, visual acuity, and user-specific refractive errors. Using this differentiable visual perception model, we optimize the rendered imagery in the display using gradient-descent solvers. This way, we provide prescription glasses-free sharper images for a person with vision impairments. We evaluate our approach and show significant quality and contrast improvements for users with vision impairments.

show abstract

“…Other rendering techniques exploiting the human visual system are based on contrast enhancement [59] and binocular disparity [13]. Other studies in the area of image quality and foveated rendering have focused on computational optics [37], as well as rendering of pre-corrected images [56].…”

Section: Part Iii: Recent Trends and Challenges In Distance Perceptiomentioning

confidence: 99%