"Kobe University YONEDA Naru and his team could adapt their setup to construct a microscope that can record a holographic movie through a light-scattering object — a mouse skull to be precise." (Interesting engineering, Tiny 1-pixel camera films holographic 3D movies beyond visible light, through objects)
In this text, the "camera" includes digital image-remastering tools from DMD to a computer that creates the image. So, the computer and AI are part of this system.
Single- or one-pixel imaging systems are strange but effective ways to observe small structures. The single- or one-pixel CCD systems can make 3D images of small objects. The size of the pixel determines the camera's accuracy. Small pixels give higher accuracy. The thing that makes this kind of system effective in nanotechnology is that the observation system itself doesn't transfer energy to the object. And that doesn't bring artifacts, or non-controlled effects to the system.
The tiny one-pixel camera can be a new and powerful alternative to CCD cameras. The one-pixel camera uses only one pixel to make images of 3D structures. The size of that pixel determines the accuracy of the camera. The system uses singe-pixel imaging which is one version of computer imaging.
The large pixel means that the system is less accurate than a system with a small pixel. And if the system uses a one-pixel version of the megapixel-class CCD camera. It can make images of tiny 3D structures.
"Schematic of a single-pixel camera using a DMD. The transmitted light (white) from the sample (blue) is modulated by the DMD and collected by a single-pixel detector. (Wikipedia, Single-pixel imaging)
A 3D single-pixel imaging.
"A pulsed laser uniformly illuminates a DMD, used to provide structured illumination onto a scene, and the back-scattered light is collected onto a photodiode. The measured light intensities are used in a 3D reconstruction algorithm to reconstruct both depth and reflectivity images." (InterestingEnginering, Tiny 1-pixel camera films holographic 3D movies beyond visible light, through objects)
The system requires a digital micromirror device, DMD, and mirror systems that aim light at the system. The system requires light. And that means it brings a little bit of extra energy to the system. However, the need for energy is much lower than in the scanning systems.
In that kind of system, the developer must only separate one pixel from the CCD chip. When a one-pixel camera makes images, it just scans the surface. The pixel moves back and forth. Or that pixel can be at rotational toboggan, which allows it to move fast. The system can turn that pixel from one direction into another.
Making the image of the object. When we think about the ball-shaped system there is a possibility that when the scanner moves around the axle there is a switch that cuts electricity from the pixel, when it's in a certain direction. The system can have three positions. The small-area photographing, and 180 and 360 degrees scanning images.
The other version is the system where the CCD camera's pixels are connected separately with the microchip. Then the system just connects the pixels to the computer one by one. That gives the system the ability to do virtual movement.
That is possible if the CCD camera's pixels are connected to the computer separately so the system can transform the CCD chip into a one-pixel camera. In that kind of system, the system benefits the CCD chip's ability to handle every pixel as an independently operating camera.
https://interestingengineering.com/innovation/1-pixel-camera-films-holographic-3d-movies
https://www.nature.com/articles/ncomms12010
https://en.wikipedia.org/wiki/Single-pixel_imaging
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