1
Jin Hun Kim: Method and apparatus for encoding a motion vector of a binary shape signal. Daewoo Electronics, Pennie & Edmonds, June 5, 2001: US06243418 (78 worldwide citation)

An apparatus encodes a video signal composed of texture information and shape information by selectively using a progressive and an interlaced coding technique. The shape information is divided into a multiplicity of BABs of M×N pixels having one of a first and a second binary values and the texture ...


2
Jin Hun Kim: Polygonal approximation method and apparatus for use in a contour encoding system. Daewoo Electronics, Pennie & Edmonds, November 2, 1999: US05978512 (52 worldwide citation)

An apparatus polygonally approximates a contour of an object expressed in a digital video signal. First of all, the apparatus determines a pair of vertices on the contour. Then, a line segment connecting the pair of vertices is generated and widened to thereby produce a band segment. And, a contour ...


3
Jin Hun Kim: Method and apparatus for concealing errors in a transmitted video signal. Daewoo Electronics, Anderson Kill & Olick P C, August 10, 1999: US05936674 (41 worldwide citation)

For concealing channel errors in an image signal divided into a multiplicity of blocks of M.times.N pixels, M and N being positive integers, a lost region is detected, wherein the lost region is of a polygonal form having a plurality of sides and includes one or more connected lost blocks, each lost ...


4
Jin Hun Kim: Method and apparatus for compensating errors in a transmitted video signal. Daewoo Electronics, Anderson Kill & Olick P C, June 15, 1999: US05912707 (35 worldwide citation)

An error concealment method first detects a lost block in a reconstructed current frame and then extracts pixel values and motion vectors corresponding to neighboring blocks of the lost block. Thereafter, a motion variance of the motion vectors corresponding to the neighboring blocks of the lost blo ...


5
Jin Hun Kim: Method for encoding a contour of an object in a video signal by using a contour motion estimation technique. Daewoo Electronics, Anderson Kill & Olick P C, June 3, 1997: US05635986 (34 worldwide citation)

A method for encoding a contour of an object predicts a current contour by using a current and a reconstructed previous contours and generates the motion vector representing a displacement between the reconstructed previous and the predicted current contours. A matched contour between the predicted ...


6
Jin Hun Kim: Method and apparatus for encoding a video signal of a contour of an object. Daewoo Electronics, Pennie & Edmonds, May 26, 1998: US05757971 (32 worldwide citation)

A method for encoding a video signal of a current contour of an object based on a previous contour thereof determines a multiple number of first vertex points on the current contour and maps the first vertex points onto the previous contour to thereby provide second vertex points of said multiple nu ...


7
Jin Hun Kim: Contour approximation method for representing a contour of an object. Daewoo Electronics, Anderson Kill & Olick P C, June 30, 1998: US05774595 (29 worldwide citation)

A contour approximation method accurately reconstructs a contour of an object by adding an extra vertex to the complex contour segment based on a curvature of the pixels on the contour image. The target pixel having the largest curvature as the extra vertex is selected.


8
Jin Hun Kim: Method and apparatus for correcting errors in a transmitted video signal. Daewoo Electronics, Pennie & Edmonds, May 12, 1998: US05751361 (26 worldwide citation)

An apparatus for use in a video signal decoding system for concealing errors in a video signal first detects a lost block in the video signal, the lost block having errors, and then provides pixel values of neighboring blocks for the lost block in the video signal based on information for the lost b ...


9
Jin Hun Kim: Method for rectifying channel errors in an image signal transmitted from a block-based encoder. Daewoo Electronics, Anderson Kill & Olick P C, November 24, 1998: US05841477 (24 worldwide citation)

A method, for use in an image signal decoding system, for concealing errors in an image signal transmitted in a block-by-block compressed form, the decoding system including a decoding circuit for decoding the transmitted image signal into a decoded image signal on a block-by-block basis and detecti ...


10
Jin Hun Kim: Method of tracing a contour of an object based on background information of the object. Daewoo Electronics, Anderson Kill & Olick P C, August 3, 1999: US05933529 (22 worldwide citation)

A method for tracing a contour of an object in an image of a video signal, the image including object pixels and background pixels, indexes each of the background pixels; detects contour pixels; groups the contour pixels to thereby provide one or more groups of contour pixels, each contour pixel in ...