This paper explains intra prediction method for High Efficiency Video Coding(HEVC).Intra prediction removes correlation of adjacent samples in spatial domain.Intra predictor requires reference images which are stored ...This paper explains intra prediction method for High Efficiency Video Coding(HEVC).Intra prediction removes correlation of adjacent samples in spatial domain.Intra predictor requires reference images which are stored in external memory.Memory access is required frequently in process of intra prediction.The proposed architecture can reduce external memory access by optimized internal buffer.展开更多
Surveillance system using active tracking camera has no distance limitation of surveillance range compared to supersonic or sound sensors.However,complex motion tracking algorithm requires huge amount of computation,a...Surveillance system using active tracking camera has no distance limitation of surveillance range compared to supersonic or sound sensors.However,complex motion tracking algorithm requires huge amount of computation,and it often requires expensive DSPs or embedded processors.This paper proposes a novel motion tracking unit based on different image for fast and simple motion tracking.It uses configuration factor to avoid noise and inaccuracy.It reduces the required computation significantly,so as to be implemented on Field Programmable Gate Array(FPGAs)instead of expensive Digital Signal Processing(DSPs).It also performs calculation for motion estimation in video compression,so it can be easily combined with surveillance system with video recording functionality based on video compression.The proposed motion tracking system implemented on Xilinx Vertex-4 FPGA can process 48 frames per second,and operating frequency of motion tracking unit is 100 MHz.展开更多
基金supported by the MKE(The Ministry of Knowledge Economy),Korea,under the ITRC(Infor mation Technology Research Center)support program supervised by the NIPA(National IT Industry Promotion Agency)(NIPA-2011-C1090-1021-0010)
文摘This paper explains intra prediction method for High Efficiency Video Coding(HEVC).Intra prediction removes correlation of adjacent samples in spatial domain.Intra predictor requires reference images which are stored in external memory.Memory access is required frequently in process of intra prediction.The proposed architecture can reduce external memory access by optimized internal buffer.
基金sponsored by ETRI System Semiconductor Industry Promotion Center,Human Resource Development Project for SoC Convergence and“System IC2010”project of Korea Ministry of Knowledge Economy
基金sponsored by the MKE(The Ministry of Knowledge Economy,Korea),the ITRC(Information Technology Research Center)support program(NIPA-2009-(C1090-0902-0007))the System Semiconductor Industry Development Center,Human Resource Development Project for IT SOC Architecture
文摘Surveillance system using active tracking camera has no distance limitation of surveillance range compared to supersonic or sound sensors.However,complex motion tracking algorithm requires huge amount of computation,and it often requires expensive DSPs or embedded processors.This paper proposes a novel motion tracking unit based on different image for fast and simple motion tracking.It uses configuration factor to avoid noise and inaccuracy.It reduces the required computation significantly,so as to be implemented on Field Programmable Gate Array(FPGAs)instead of expensive Digital Signal Processing(DSPs).It also performs calculation for motion estimation in video compression,so it can be easily combined with surveillance system with video recording functionality based on video compression.The proposed motion tracking system implemented on Xilinx Vertex-4 FPGA can process 48 frames per second,and operating frequency of motion tracking unit is 100 MHz.
