Technical Documentation

Vaydr builds privacy gear for a world where surveillance runs on algorithms, not human observers. Modern systems don’t “see” faces or bodies the way people do. They measure geometry, symmetry, shading, reflectivity and heat across several bands of light. Vaydr products are designed to interfere with those inputs.

Part I: How modern facial recognition works

Most facial recognition systems rely on three kinds of input.

Geometry

The system measures the distances between facial landmarks: eye spacing, nose width and length, jawline shape and brow structure. Together these form a mathematical model of your face.

Symmetry

Human faces are highly symmetrical. Algorithms check for balanced landmark placement and consistent ratios on both sides of the face. The more symmetry they detect, the higher the confidence score.

Shading and reflectivity

This is the part most people miss. Facial recognition doesn’t rely on visible light alone. Many cameras also use infrared, and especially near-infrared (NIR) illumination. They emit NIR light and measure how it reflects off skin, bone and soft tissue, which improves accuracy even in low light.

Why hats and ordinary sunglasses help, but aren’t enough

Hats and sunglasses lower recognition accuracy by breaking up facial geometry, hiding landmarks and adding shadow. But most sunglasses only filter visible light. Under infrared illumination the face still reflects NIR light, algorithms can rebuild facial geometry from that data, and the eyes are exposed to the camera even though the lenses look dark to a person. That’s why ordinary sunglasses often fall short against modern systems.

Part II: The GLX lens

Why both visible and near-infrared light matter

To meaningfully interfere with facial recognition, eyewear has to affect both visible-light cues and near-infrared reflectivity. The GLX lens is designed to do both.

Near-infrared: the critical range

The most important band for modern facial recognition is near-infrared, roughly 780 to 1,400 nanometers. It’s invisible to the human eye, widely used by security cameras, and rarely filtered by consumer eyewear.

GLX uses selective wavelength filtering. It reduces near-infrared transmission through the lens, changes visible-light contrast and shading around the eyes, and makes facial landmarks less consistent from frame to frame. It filters specific wavelengths rather than blocking all light, so vision stays clear enough for everyday wear.

The numbers (lens averages): 99%+ of near-infrared light filtered, 99%+ of UV filtered, 15% of visible light transmitted, Z87+ impact rating. The filtering is in the lens material, not a coating. How the GLX lens works

The result is a face that’s less consistent, less symmetrical and harder to model for many consumer-grade recognition systems. GLX lenses also filter UV and blue light.

Best practices for Vaydr eyewear

Gear works best when paired with habits:

  • Wear the glasses fully seated on your face.
  • Add a hat or brim when you can.
  • Avoid standing directly under fixed cameras, and limit long periods standing still in view.
  • Be mindful of your head angle and posture.

Vaydr eyewear is designed for everyday civilian environments, not advanced or government-grade systems.

Part III: Thermal surveillance

Why thermal matters

Thermal imaging is getting cheaper, smaller and easier to buy. What was once limited to military and industrial use is now available to civilians, security teams and private operators. Thermal cameras don’t see faces. They see heat contrast, which makes thermal one of the fastest-growing privacy concerns.

Two layers of detection

Effective thermal concealment has to address two things.

Visible detection. If a person is easy to see, thermal concealment alone isn’t enough. The Kalyx Cover uses Vaydr’s own Prairiebrush camouflage to break up outlines, match natural terrain and reduce visual contrast.

Thermal detection. Thermal cameras detect heat transfer, not objects. The Kalyx Cover’s layered construction creates an internal air gap that slows and spreads heat, reducing clean thermal outlines. Heat isn’t eliminated. It’s spread out and softened, which makes detection harder under certain conditions.

Getting more from the cover

  • Put natural foliage between the cover and the surroundings.
  • Avoid direct contact with warm ground.
  • Keep movement to a minimum.
  • Give heat time to even out.

Layering matters.

Field use: basic rigging and setup

These techniques are for civilian preparedness and concealment, not combat or illegal activity.

Quick shelter setup

Tie the corners off to branches or stakes. Leave airflow underneath and small ventilation gaps, and don’t wrap the cover tightly against your body.

Knot basics

Use an overhand knot for quick tie-offs, and a bowline or trucker’s hitch for lines under tension. Avoid compressing the cover’s layers.

Fast field folding

  1. Lay the cover flat.
  2. Fold it lengthwise into thirds.
  3. Fold again to the width you want.
  4. Roll it tightly from one end.
  5. Secure it with an elastic cord or strap.

Folding this way protects the layers and makes it faster to redeploy.

What Vaydr is, and isn’t

Vaydr is: privacy-enhancing gear, designed to reduce detection confidence, built for civilian use, and most effective as part of a layered approach.

Vaydr is not: a guarantee of invisibility, military or law-enforcement equipment, a substitute for awareness and good habits, or effective against every surveillance system.

Surveillance is evolving quickly. Vaydr exists to help people understand how they’re seen and reduce unnecessary exposure. Privacy isn’t about hiding from the world. It’s about choosing when and how you’re seen.