J.B. Ra

Weight value initialization for improving training speed in the backpropagation network

Yuseok Kim, J.B. Ra · 1991 · 56 citations

Artificial Intelligence, Engineering, Machine Learning +20

Spine needle biopsy simulator using visual and force feedback

J.B. Ra, Sung-Min Kwon, J.K. Kim et al. · Computer Aided Surgery · 2002 · 39 citations · Full text

Adaptive learning method in self-organizing map for edge preserving vector quantization

Yuseok Kim, J.B. Ra · IEEE Transactions on Neural Networks · 1995 · 24 citations

Vector Quantization, Image Analysis, Engineering +14

An adaptive perceptual quantization algorithm for video coding

Kangwook Chun, Kyoung Won Lim, Haeun Cho et al. · IEEE Transactions on Consumer Electronics · 1993 · 23 citations

Macroblock Characteristics, Subjective Quality, Image Analysis +11

An improved block matching algorithm based on successive refinement of motion vector candidates

Kangwook Chun, J.B. Ra · Signal Processing Image Communication · 1994 · 18 citations

Motion Detection, Image Analysis, Successive Refinement +8