1
Min Sub Lee: Method and apparatus for determining feature points. Daewoo Electronics, Anderson Kill & Olick P C, December 2, 1997: US05694487 (58 worldwide citation)

A method for determining feature points comprises a step for (a) providing directional gradients and a gradient magnitude for each pixel in the video frame, (b) normalizing the directional gradients by dividing the directional gradients with the gradient magnitude, (c) generating a first edge map ha ...


2
Lee Min Sub: Method and apparatus for determining feature points. Daewoo Electronics, September 25, 1996: EP0733996-A2 (1 worldwide citation)

A method for determining feature points comprises a step for (a) providing directional gradients and a gradient magnitude for each pixel in the video frame, (b) normalizing the directional gradients by dividing the directional gradients with the gradient magnitude, (c) generating a first edge map ha ...


3
Min Sub Lee: Method and apparatus for determining feature points. Daewoo Electronics, JIAN WEI, October 22, 1996: CN95105460

A method for determining feature points comprises a step for (a) providing directional gradients and a gradient magnitude for each pixel in the video frame, (b) normalizing the directional gradients by dividing the directional gradients with the gradient magnitude, (c) generating a first edge map ha ...