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Your search keyword '"Song, Jun-fang"' showing total 10 results
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10 results on '"Song, Jun-fang"'

6. Pedestrian Detection in Traffic Scene through Cascade AdaBoost Classifier and Target Tracking

Author

Song Xiang-Yu and Song Jun-Fang

Subjects
business.industry, Computer science, Pedestrian detection, Detector, Feature extraction, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Process (computing), Cascade, Feature (computer vision), Trajectory, Computer vision, AdaBoost, Artificial intelligence, business
Abstract

Pedestrian detection is an important component in an intelligent traffic monitoring system. In this paper, a real-time two-layer pedestrian classification method is presented. In the approach, firstly, several simplified geometric features are used to train the first layer pedestrian detector based on cascade AdaBoost, especially the 3D height geometric feature. Then, an improved multiple feature matching models is adopted for the tracking process and the actual motion trajectories in a 3D space are built. After that, the motion trajectories are dealt with using the linear fitting method based on subsection process to form the final subsection trajectories. Finally, the second layer pedestrian detector is applied on the subsection trajectories for the further pedestrian detection. Experimental results show that the improved method in this paper has a high correct detection rate, as well as a fast detection speed.

Published
2018

10. [Molecular Cloning of Smooth Muscle Calponin h1 in SHeep.].

Author

Yue ZJ, Song JF, Huang ZF, Liu HB, Zhu ZH, Zhang XJ, Zhang Y, Tan PP, and Ma RL

Subjects
Animals, Cloning, Molecular, DNA, Complementary genetics, Humans, Molecular Sequence Data, Muscle, Smooth, Sheep genetics, Amino Acid Sequence, Base Sequence
Abstract

It was found that the level of Calponin h1 (CaP h1) mRNA was significantly up-regulated by Estrogen in the myometrium of sheep towards the end pregnancy. Although the CaP h1 has been widely used as a reference gene to observe the changes of expression level of other genes, the full-length gene in sheep has not been obtained. With the oligo nucleotide primers according to human, mouse and pig CaP h1 mRNA, the full-length cDNA of CaP h1 was cloned by 5'- and 3'-RACE (Genbank accession number = AY327118). The cDNA was 1499bp in length and contained a complete open reading frame of 891 bp, encoding a protein of 297 amino acid residues. 5'-and 3'-UTR was 79 bp and 529bp, respectively. With PCR-SSP approaches,the genomic DNA of sheep CaP h1 was obtained .It showed that the gene has 7 exons and 6 introns, spanning over 8kb(Genbank accession number of introns : AY771807,AY771808, AY771809, AY771810.) Homologous comparison indicated that the cDNA sequences are highly conserved across the species. The highest homology was found in wild pig (92%), followed by human (88%), rat (81%), mouse (81%) and chicken (79%). The intron sequence and length showed a large variation among species (>50%).

Published
2005

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