Show HN: Wave-based non-line-of-sight computational imaging in Julia

Re:Show HN: Wave-based non-line-of-sight computational imagi... by gugagore on Wednesday August 28, 2019 @02:59AM (#20817531)

Averaging N images should (roughly?) make the noise go down by sqrt(N), so long as you don't introduce more sources of noise during collection. So the camera would have to be still, or the images registered to a common perspective.

[ Parent | on HN ]

Re:Show HN: Wave-based non-line-of-sight computational imagi... by londons_explore on Wednesday August 28, 2019 @05:12AM (#20818115)

The camera or subject can move, and as long as the movements are known then the reconstruction is still perfect.

High end mobile phone cameras take hundreds of shots over a second or more to reduce noise, and rely on the fact they can estimate movement of things in the frame with optical flow and a gyroscope.

[ Parent | on HN ]

Re:Show HN: Wave-based non-line-of-sight computational imagi... by gugagore on Thursday August 29, 2019 @12:19PM (#20830884)

This is what I meant by "registration", for the case when the subject isn't changing.

[ Parent | on HN ]