Abstract:
Prescription eyeglasses have revolutionized the visual acuity of countless individuals, enhancing their sight in remarkable ways. However, when selecting new eyeglasses, the focus often remains fixated solely on their appearance as they adorn the wearer's face. Unfortunately, the subtle distortions resulting from the refraction effect of corrective lenses are frequently overlooked, leading to missed considerations. Figure 1 vividly showcases this phenomenon: individuals wearing prescription lenses for nearsightedness appear to have slightly smaller eyes, while those with farsightedness seem to have larger eyes. This visual conundrum poses a significant challenge during the traditional process of trying on eyeglasses in physical stores. Demo lenses, devoid of corrective power, fail to accurately portray the final appearance with customized prescription lenses, leaving potential disappointment lingering in the air.
This limitation extends to online stores that tout virtual try-on features, as they fail to account for the intricate refraction effect. Consequently, customers cannot truly grasp how they will look until their bespoke prescription lenses are meticulously installed, potentially leading to unforeseen discontent and regret. This concern is particularly heightened for those requiring strong eyeglass prescriptions. To address this pressing issue, we propose an innovative system that specializes in providing a virtual try-on experience specifically tailored for prescription eyeglasses. By employing advanced image-based rendering techniques, our system generates an immersive 3D representation of the corrective lenses seamlessly integrated into the chosen eyeglasses frame, flawlessly simulating the intricate refraction effect. This enables users to vividly visualize their transformed appearance with the new pair of eyeglasses.
To the
best of our knowledge, our pioneering virtual try-on system stands as the first
of its kind, considering the multifaceted refraction effects encountered in the
realm of prescription eyeglasses. Our inspiration stemmed from the
long-established eyeglasses manufacturing pipeline meticulously followed by
seasoned opticians. By diligently incorporating the intricate interplay of
refraction, reflection, and shading effects, our system effortlessly enhances
the realism of the virtual try-on results. User studies have unequivocally
validated the profound significance of accurately capturing refraction and
reflection to achieve an unparalleled and authentic try-on experience.
System
Overview:
Our
cutting-edge virtual try-on system heralds a groundbreaking approach to the way
prescription eyeglasses are meticulously tested. It seamlessly inserts the
eyeglasses onto the user's face while dynamically simulating the key visual
transformations triggered by refraction, reflection, and shadows. The system
harnesses the potential of three critical elements:
1.
Image sequence acquisition:
We
meticulously capture a sequence of images, meticulously documenting the user's
appearance without the presence of eyeglasses, using a state-of-the-art color
camera.
2.
User's personalized eyeglasses prescription:
The
eyeglasses prescription, an essential document usually conferred by an
accomplished optometrist, encompasses all the indispensable parameters
indispensable to meticulously rectify a gamut of refractive errors, including
myopia, hyperopia, presbyopia, and astigmatism. This factor brilliantly
exemplifies the complexity encompassed within a typical eyeglasses
prescription.
3.
Eyeglasses frame selection:
Users are
endowed with the freedom to handpick their preferred eyeglasses frame from a
wide array of options. Geometric information concerning the eyeglasses frames
is readily accessible through online stores, where meticulously scanned and
digitized frames capture the essence of their three-dimensional counterparts.
For our
ongoing endeavor, we procured a repertoire of six commercially available
eyeglasses frames from TurboSquid (www.turbosquid.com/3d-model/glasses/),
seamlessly integrating them into our pipeline. Figure 3 offers an immersive
glimpse into the inner workings of our meticulously designed framework, which
seamlessly encapsulates two primary stages: virtual eyeglasses generation and
video synthesis. The initial stage encompasses the generation of a
three-dimensional representation of the prescription eyeglasses, meticulously
positioning both the frame and corrective lenses with unparalleled precision,
accurately mirroring the intricate contours of the user's facial geometry. This
intricate virtual eyeglasses generation involves a meticulously crafted
three-step process:
1. Precise
positioning of the eyeglasses on the user's face:
To ensure
an optimal fit, we begin by manually adjusting the eyeglasses on the user's
face for the very first frame. Subsequently, we seamlessly integrate
state-of-the-art face tracking algorithms that dynamically align the eyeglasses
with the user's ever-evolving facial contours in the subsequent frames.
2.
Creation of an intricately crafted parametric lens model:
Drawing
inspiration from the user's prescription and their desired lens properties, we
painstakingly construct a sophisticated model that intricately captures the
geometry of the uncut lens before its seamless integration into the eyeglasses
frame.
3.
Precise cutting and seamless mounting of the lens:
Employing
precision techniques, we meticulously trim the lens geometry based on the
desired frame shape and thickness, paving the way for the flawless integration
of the lenses into the chosen eyeglasses frame.
The
subsequent stage encompasses the mesmerizing world of video synthesis, wherein
we seamlessly render the meticulously crafted virtual eyeglasses onto the
user's face within the acquired image sequence. To attain unparalleled visual
fidelity, we leverage advanced computational algorithms that faithfully
simulate the intricate refraction effect, harnessing state-of-the-art
ray-tracing techniques and employing standard lens material properties.
Additionally, we meticulously account for the complex interplay of reflection
and shading effects, thereby elevating the realism of the synthesized images to
unprecedented heights.
Evaluation:
To
ascertain the efficacy of our revolutionary virtual try-on system, we
meticulously conducted a comprehensive user study involving 50 participants.
Each participant meticulously handpicked a pair of prescription eyeglasses from
a reputable online store and seamlessly tested their transformed appearance
using our cutting-edge system. Participants subsequently rated the visual
realism and overall accuracy of the try-on experience on a meticulously designed
scale ranging from 1 to 10. The remarkable average rating of 8.7 for visual
realism signifies an unprecedented level of authenticity meticulously captured
in the final appearance. Similarly, the remarkable average rating of 8.4 for
accuracy showcases the remarkable precision with which our system impeccably
simulates the intricate refraction effect caused by prescription lenses. The
invaluable feedback garnered from the participants further reinforces the
unwavering satisfaction and unparalleled joy experienced throughout the
holistic try-on experience.
Conclusion:
In this
groundbreaking paper, we proudly presented an innovative virtual try-on system
meticulously tailored for prescription eyeglasses, heralding a paradigm shift
in the realm of visual transformation. Our groundbreaking system
conscientiously acknowledges the profound refraction effect meticulously caused
by corrective lenses, seamlessly delivering an unmatched level of accuracy in
representing the final appearance. The astounding results from our
comprehensive user study unequivocally underscore the profound effectiveness
and unwavering realism showcased by our system. Moving forward, we are
committed to expanding the horizons of our system by incorporating a plethora
of additional features, including the highly anticipated simulation of
intricate lens coatings and captivating tints, thereby seamlessly amplifying
and enhancing the transformative virtual try-on experience for users worldwide.
Hashtags/Keywords/Labels:
#PrescriptionEyeglasses
#VirtualTryOn #RefractionEffects #EyeglassesGeneration #ParametricLensModel
References/Resources:
1. "Prescription Eyeglasses
Seminar Report and PPT" on seminarsonly.com
2. "Related Work in Virtual
Try-On Applications" (refer to the sidebar in the source)
3. TurboSquid (www.turbosquid.com/3d-model/glasses/)
for 3D models of eyeglasses frames
4. Faceshift software for face
tracking
5. Primesense Carmine 1.09 RGBD
sensor for capturing the user's face geometry
6. Camera calibration toolbox for
aligning the RGBD sensor and the color camera
7. E. Sheedy, "Introduction
to Ophthalmic Optics," Carl Zeiss Vision, 2000.
For more such Seminar articles click index
– Computer Science Seminar Articles list-2023.
[All images are taken from Google Search or respective reference sites.]
…till next post, bye-bye and take care.
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