MTF testingMastercard

Resolution and MTF testing are critical in constructing the proper lens specifications. At FISBA, we specialize in metrology and are committed to delivering products that have undergone rigorous testing to ensure they meet the highest quality and performance requirements. To learn more about our metrology capabilities visit this page: Metrology & Test. Our highly experienced engineers and precision assembly teams use industry-standard test methods and can design and build custom solutions to meet your unique needs. Talk to an expert to get a conversation started.

Tojkar wrote: (...) I love the old lo-fi monitors, which curves the picture due to their physical properties, but I equally hate the black borders and corners. I was trying to modify some existing shaders which has the fisheye effect included, but I never managed to succeed. That being said... (...)

Modulation transfer function

brussell wrote: Martigen wrote: Does it handle multiple 'huds' - i.e difference between a main menu or an in-game inventory? I imagine it depends on the layout of the hud and recognised pixels. Yes. In short: HudDetected == (Hud1Pixel1 && Hud1Pixel2) || (Hud2Pixel1 && Hud2Pixel2 && Hud2Pixel3 && ...) || ...

LensMTF

Nanoxo wrote: I'm absolutely loving the effect that this shader had in most of my games while playing in a triple monitor setup, it almost disables the famous "triple screen fish eye effect" perception , but the problem is that the section in the center of the screen (the central monitor) looks a little pixellated and the visibility gets reduced as this section gets "zoomed in". Would it be possible to add a slider to lower the effect intensity linearly from the edges to the center of the screen, in a way that we can keep the same intensity of the effect near the screen edges, but lower the effect intensity near the screen center.

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In the past, when sensors only offered at most 640 pixels, it was easy to make an imaging lens that could outperform the camera’s sensor. Today, with pixel sizes less than 1 micron,  pixel count on sensors have significantly increased —sensors now regularly have over six million pixels. To keep up with this technological advancement and provide superior image quality, lens performance must increase, and measuring how well a lens performs requires the correct metrology. This is where resolution and modulation transfer function (MTF) testing comes in.

Martigen wrote: brussell wrote: Martigen wrote: Does it handle multiple 'huds' - i.e difference between a main menu or an in-game inventory? I imagine it depends on the layout of the hud and recognised pixels. Yes. In short: HudDetected == (Hud1Pixel1 && Hud1Pixel2) || (Hud2Pixel1 && Hud2Pixel2 && Hud2Pixel3 && ...) || ... Nice! Where's the shader?

MTF

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MTF testing is the measurement of the ability of optical systems to transfer various levels of detail from an object to an image. Performance is measured in terms of contrast (the intensity difference between the image’s black and white regions) and accounts for real-world factors like optical blurring.

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An MTF test bench’s calculations are contrasted as a function of spatial frequency within a two-, or three-dimensional coordinate system. This function reveals how well-resolved an object is based on its size.

FOV and focal length

Read on to learn more about MTF testing, its benefits, common methods of evaluating lens resolution, and MTF and resolution testing components.

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Fu-Bama wrote: Just released update 2.2.6 adds new ui_category feature from ReShade 3.2.2 and anti-aliasing of image borders. Available here github.com/crosire/reshade-shaders

ImageJMTF

Marty McFly wrote: Is the precise data from the second diagram available somewhere? Would make for an interesting colored vignette filter. Is the the measured difference unidirectional or is it different in top/bottom/left/right? EDIT: Voldemort's binocular vision cone is broader no nose blocking the view

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Martigen wrote: Does it handle multiple 'huds' - i.e difference between a main menu or an in-game inventory? I imagine it depends on the layout of the hud and recognised pixels.

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Since the introduction of linear system analyses to the optics field, demand for higher quality, higher resolution optical systems has increased. Designers and metrology scientists have turned to modulation transfer function (MTF) testing as a standardized method of optical system characterization.