optical

Images as Light Projections

On: July 15, 2020

In: AI, Algorithms, Computer Vision, Image Formation

Exposing a sensor to a light – projects points that project to all the sensor – and so all locations on the sensor see light from all the points. Aperture(small hole) – seeing light from only one point(inverted and reduced). How big should the aperture be ? until diffraction happensContinue Reading

Optical Flow Constraints

On: May 18, 2019

In: AI, Algorithms, Computer Vision

In order to compute Optical Flow there are two assumptions/constraints: Image moves in u(x cord) and v(y cord): The brightness(grayscale)/color consistency is same between the original image I ( x, y,t), and the image in I ( x+u, y+v,t+1). The change in motion is almost zero(smooth), which means that the original IContinue Reading