Fig. 1. Data processing flow chart of the RPCA algorithm employed to reduce speckle noise in OCT images

Fig. 2. Signal plots describing the one-dimensional depth information of the green lines corresponding to the original image and denoised image. (a) Original image; (b) signal plots describing the one-dimensional depth information of the original image; (c) denoised image; (d) signal plots describing the one-dimensional depth information of the denoised image

Fig. 3. Selected regional markings for quantitative analysis of image quality. (a) Original image; (b) denoised image

Fig. 4. Effect comparison of original image and denoised images processed by two algorithms. (a) Original image; (b) denoised image processed by PNLM algorithm; (c) denoised image processed by RPCA algorithm

Table 1. Quantitative analysis results of original image and denoised images processed by two algorithms