A growing number of screening applications require the automated monitoring of cell populations including cell segmentation, tracking, and measurement. Due to the highthroughput and low-dose nature of such screens, resulting images can suffer from microscope defocusing effects and low contrastto-noise ratios, which can lead to failed segmentation and tracking. We have previously presented gener...

Speckle photography can be used to monitor deformations of solid surfaces. Its measuring characteristics, such as range or lateral resolution, depend heavily on the optical recording and illumination setup. I show how, by the addition of two suitably perforated masks, the effective optical aperture of the system may vary from point to point of the surface, accordingly adapting the range and res...

This paper presented a view interpolation method for reconstructing intermediate all-in-focus images between defocused stereo images of a scene consisting of two depths. In the presented method, the novel view can be reconstructed as a sum of the filtered stereo images. The reconstruction filter was derived as a stable and linear space-invariant one; thus the presented method does not require r...

In this paper we propose a new method for estimating depth using a fusion of defocus and stereo, that relaxes the assumption of a pinhole model of the camera. It avoids the correspondence problem of stereo. Main advantage of this algorithm is simultaneous recovery of depth and image restoration. The depth (blur or disparity) in the scene and the intensity process in the focused image are indivi...

Optical modeling suggests that levels of retinal defocus routinely caused by presbyopia should produce phase reversals (spurious resolution−SR) for spatial frequencies in the 2 cycles/letter range known to be critical for reading. Simulations show that such reversals can have a decisive impact on character legibility, and that correcting only this feature of defocused images (by re-reversing co...