Selection of a 250 megapixel snapshot of a volunteer with an area illustrated in detail. Credit: Frontiers in Optics

Noticing a tiny new lesion on a skin is often the most important step in stopping melanoma. Most of us don’t obsessively examine every inch of our body on a regular basis, and even those who do may not notice a random new spot appearing on the lower back. There are already technologies that can notice the appearance of new moles between projections, but they don’t provide much resolution for a dermatologist to zoom in to examine the object more closely. This leads to an additional digital dermatoscopy, which consumes both time and costs.

skin-cancer-cameraA new gigapixel camera from Duke University can solve this problem because it allows full-body photography at a resolution of 75 microns. It works using a primary lens and 34 tiny cameras that work together to create a high-resolution image. By using software to process the images taken during each physical exam, one should be able to spot new lesions and send close-up views of them to a dermatologist for a quick examination.

The technology will be showcased for the first time at The Optical Society’s (OSA) 98th Annual Meeting, Frontiers in Optics, later this month in Tucson, Arizona.

I wonder how hair affects detection.

[Daniel Marks, one of the co-authors on the paper] pointed out that while the resolution of the gigapixel camera is not as high as that of the best dermatoscope, it is significantly better than normal photography, allows for a larger imaging area than a dermatoscope, and could be used for telemedicine, which could make routine testing available to more people, even in remote locations.

Gigapixel imaging technology is based on the design of multiscale cameras, which is part of the Defense Advanced Research Projects Agency’s program “Advanced Wide Field-of-View Architectures for Image Reconstruction and Exploitation”.

Although the camera will still have to prove its effectiveness in clinical trials before it becomes routinely available to patients, researchers have gathered enough preliminary data from a healthy volunteer to demonstrate that it has adequate resolution and the field of view necessary for it. screening for skin diseases. The next step, they say, is to test its effectiveness in the clinic.

Optical company: The skin cancer selfie …


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