Streaming an image through the eye: The retina seen as a dithered scalable image coder
Khaled Masmoudi, Marc Antonini, Pierre Kornprobst

TL;DR
This paper introduces a biologically inspired scalable image coder modeled after the mammalian retina, incorporating time-dependent processing and retinal noise as a dither signal to enhance perceptual features and decoding efficiency.
Contribution
It presents a novel retina-inspired image coder that mimics retinal processing and introduces retinal noise modeling to improve perceptual quality and interpret non-determinism.
Findings
Retinal-inspired coder ensures implicit scalability and bit allocation.
Dither noise whitens reconstruction error and decorrelates it from input.
Faster recognition of image details during decoding.
Abstract
We propose the design of an original scalable image coder/decoder that is inspired from the mammalians retina. Our coder accounts for the time-dependent and also nondeterministic behavior of the actual retina. The present work brings two main contributions: As a first step, (i) we design a deterministic image coder mimicking most of the retinal processing stages and then (ii) we introduce a retinal noise in the coding process, that we model here as a dither signal, to gain interesting perceptual features. Regarding our first contribution, our main source of inspiration will be the biologically plausible model of the retina called Virtual Retina. The main novelty of this coder is to show that the time-dependent behavior of the retina cells could ensure, in an implicit way, scalability and bit allocation. Regarding our second contribution, we reconsider the inner layers of the retina. We…
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Taxonomy
TopicsCCD and CMOS Imaging Sensors · Cell Image Analysis Techniques · Retinal Development and Disorders
