projected

Radiometry – measurement of light (L) per unit area

On: May 10, 2019

In: AI, Autonomous Vehicles, Cars, Computer Vision, Drones

Radiance (L)- light carried by a ray from a light source. 1 Watt(W) = 1 Joule per second. A radian(r) is a measure of an angle, a steradian/ square radian[(sr) is a measure of a solid angle. e.g. In a cone it’s the amount of the radian area of the cone. IrradianceContinue Reading

Coordinate System Modeling – Perspective Projection

On: May 12, 2018

In: Uncategorized

COP center of projection on origin. Using Similar Triangles – X,Y are projected to -d*X/Z, -d*Y/Z – which is the focal length. Homogeneous coordinates enable linear multiplication,and are invariant under scale. We use them to not worry about the division of z until after the heavy math and inContinue Reading