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LouisDesdoigts / dLux

Differentiable optical models as parameterised neural networks in Jax using Zodiax
https://louisdesdoigts.github.io/dLux/
BSD 3-Clause "New" or "Revised" License
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Add intrapixel sensitivity map downsampling #257

Open benjaminpope opened 1 year ago

benjaminpope commented 1 year ago

In this paper there are intrapixel sensitivity maps measured for H2RG detectors in the lab, at 650-1550 nm. This isn't the wavelength range we want, and there are significant inter-pixel variations too (which we have solved in Desdoigts et al 2023a), but the intra-pixel stuff is important too if we really want to nail high angular resolution, high contrast imaging like with AMI.

We could add a version of downsample, whether as a Detector layer or a util, that instead of taking the mean of the array along the chosen axes, dots with an n by n array containing the mean intrapixel sensitivity map.

We could publish a fit to JWST data with mean intrapixel sensitivity maps inferred from data at each wavelength.

LouisDesdoigts commented 1 year ago

Oh yeah this is a really cool idea - definitely something we build and do in due course