Method for Obtaining Image with High Speed Based on Lensless Camera

摘要

A lensless camera-based high-speed image acquisition method is disclosed. The disclosed method includes forming a Point Spread Function (PSF) using a lensless camera using a phase mask; Obtaining a raw image in which the PSF is overlapped; And restoring an image from the raw image, wherein the raw image is represented by a linear combination of the PSF, and the image restoration is performed by calculating a convolution of the PSF known in advance and combining the calculated convolution with the raw image. After setting the difference as a cost function, it is made in the direction of reducing the error. According to the disclosed method, there is an advantage in that an image can be obtained at high speed without using high-performance equipment by using a lensless camera.