123results about How to "Increase depth of field" patented technology

A method for forming an image, implemented at least in part by a data processing apparatus, by obtaining a first image of a scene from a first subset of pixels in an image sensor array at a first f / # setting, adjusting the imaging optics that obtain light from the scene at a second f / # setting, obtaining a second image of the scene from a second subset of pixels in the image sensor array, and forming a composite image by combining image data from at least the first and second images.

The invention belongs to the technical field of microimaging and provides a method, an optical module and a system for extended field depth three-dimensional nanoscale-resolution imaging. The method comprises the following steps of 1, building the optical module having a double-helix point spread function and defocusing grating multistage imaging properties, 2, carrying out imaging of a molecule needing to be detected by the optical module to obtain a double-helix image, 3, determining a horizontal position of the molecule needing to be detected according to positions of middle points of double-helix sidelobes of the double-helix image, and 4, determining an axial position of the molecule needing to be detected according to a rotation angle of a connection line of centers of the double-helix sidelobes of the double-helix image, and the positions of the middle points of the double-helix sidelobes. Through combination of double effects of the double-helix point spread function and the defocusing grating multistage imaging, the method extends a field depth and improves a resolution ratio. The method can be used for dynamic range imaging of subcellular fractions having any depth values in a whole cell, can produce dynamic function images of multiple moving molecules, and has an important meaning for high-level understanding of a rule and a relationship between a subcellular structure and a cell function change.

A multiscale imaging system including microcameras having controllable focus, dynamic range, exposure, and magnification is disclosed. The objective lens forms a three-dimensional image field of a scene. Image regions of the image field are relayed by the microcameras onto their respective focal-plane arrays, which collectively provide a plurality of digital sub-images of the scene. The digital sub-images can then be used to form a composite digital image of the scene that can have enhanced depth-of-field, enhanced dynamic range, parallax views of the scene, or three-dimensionality.