From: Retinal status analysis method based on feature extraction and quantitative grading in OCT images
Morphological feature j | \(Th1_{j}\) | \(Th2_{j}\) | \(Th3_{j}\) | Grading conditions |
---|---|---|---|---|
\(r_{ILM},r_{RPE}\) | −0.9 | −0.5 | 0 | II |
(\(\nabla Y_{ILM}\)(P) | PA_L)(\(\nabla Y_{ILM}\)(P) | PE_L) | 20 | 8 | 3 | I |
(\(\nabla Y_{RPE}\)(P) | PA_L)(\(\nabla Y_{RPE}\)(P) | PE_L) | Â | Â | Â | Â |
(\(\nabla Y_{ILM}\)(N) | PA_R)(\(\nabla Y_{ILM}\)(N) | PE_R) | −20 | −8 | −3 | II |
(\(\nabla Y_{RPE}\)(N) | PA_R)(\(\nabla Y_{RPE}\)(N) | PE_R) | Â | Â | Â | Â |
(\(\nabla Y_{ILM} |\) Fovea) | 70 | 50 | 30 | I |
(\(\nabla Y_{RPE} |\) Fovea) | 35 | 25 | 10 | I |
\(\sigma _{ILM},\sigma _{RPE}\) | 60 | 50 | 25 | I |
\(K_{ILM},K_{RPE}\) | 8 | 5 | 3 | I |