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Source Code

Plenoptic focus calibration

Focus calibration of plenoptic camera for depth estimation. Source code for decoding lightfield images, metric calibration of the focus of a standard plenoptic camera and depth estimation [3]. The toolbox includes sample images with depth ground-truth captured with a TOF sensor. [project page]

Focus measure

Focus measure operators for autofocus and shape from focus. Implemented operators are based on different principles, such as image gradients, frequency-space analysis, and image statistics, among others. This is the implementation used in [1] .[matlab source code]

Defocus simulation

Source code for generating synthetic image sequences with different focus settings of a digital camera. This is the implementation used in [1,2] [matlab source code]

Extended depth-of-field

Source code for the generation of all-in-focus images through image fusion (focus stacking or extended depth-of-field). This is the implementation of [2]. [matlab source code]

Shape-from-focus

Efficient Matlab implementation of the shape-from-focus routine for depth estimation. This is the implementation of [1]. [matlab source code]

Defocus Sequences

Synthetic image sequences

Synthetic defocus sequences used in [2] for focus stacking. Each sequence is comprised of 30 images. The enclosed focus.mat files contain the focus distance of each image (in meters). Click image to download:

Synthetic defocus sequences used in [1] for shape-from-focus. Each sequence is comprised of 25-50 images. The enclosed data.mat files contain the focus distance of each image (in meters) and the ground truth for the depth map. Click image to download:

Real image sequences

Real defocus sequences used in [1] for shape-from-focus. Each sequence is comprised of 50-100 images captured with a Sony SNC RZ50P camera. The enclosed focus.mat files contain the focus distance of each image (in meters). Click image to download:

Real defocus sequences used in [1] for shape-from-focus. Each sequence is comprised of 51 images captured with a Logitech Orbit AF camera. The enclosed focus.mat files contain the focus distance of each image (in meters). Click image to download:

References

[1] S. Pertuz, D. Puig, M. A. Garcia, Analysis of focus measure operators in shape-from-focus, Pattern Recognition, 46(5), pp. 1415-1432, 2011. DOI:10.1016/j.patcog.2012.11.011 [pdf]

[2] S. Pertuz, D. Puig, M. A. Garcia, A. Fusiello, Generation of all-in-focus images through noise-robust selective fusion of limited depth-of-field images, IEEE Transactions on Image Processing, 22(3), pp. 1242-1251, 2013. DOI:10.1109/TIP.2012.2231087 [pdf]

[3] S. Pertuz, E. Pulido-Herrera, J. Kamarainen, Focus Model for Metric Depth Estimation in Standard Plenoptic Cameras, ISPRS ISPRS Journal of Photogrammetry and Remote Sensing (in print).