Patent ID: 9519737
Filing Date: 2016-12-13
CPC Classification: G01J,G02B,G06F,H04N

Claim Text:
1. A computer-implemented method for designing a filter module for use in an aperture-multiplexed imaging system, wherein the aperture-multiplexed imaging system performs a predefined task, and the aperture-multiplexed imaging system comprises a sensor that captures multiplexed images of an object, the filter module positioned approximately in a conjugate plane to the sensor to provide aperture coding of the multiplexed images, the computer-implemented method comprising a computer system performing the steps of: accessing a candidate design for the filter module, the candidate design for the filter module including a candidate spatial partition of filter cells within the filter module; simulating the imaging system with the candidate filter module forming multiplexed images, wherein the multiplexed images are aperture coded by the candidate filter module; simulating refocusing of the multiplexed images; calculating a performance metric that is a function of the simulated multiplexed images and the refocused multiplexed images, wherein the performance metric is indicative of the predefined task and the predefined task is also a function of the simulated multiplexed images and the refocused multiplexed images; and iteratively modifying the candidate spatial partition of filter cells to improve the calculated performance metric; wherein all of the above steps are performed by one or more processors within the computer system.