scholarly journals A Motion Image Pose Contour Extraction Method Based on B-Spline Wavelet

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Chen chen ◽  
Daohui Bi
Keyword(s):  
Heuristic Search ◽  
Extraction Method ◽  
Extraction Time ◽  
Contour Extraction ◽  
Wavelet Theory ◽  
Spline Wavelet ◽  
B Spline ◽  
Moving Images ◽  
Heuristic Search Method ◽  
Neural Network Technology

In order to improve the accuracy of traditional motion image pose contour extraction and shorten the extraction time, a motion image pose contour extraction method based on B-spline wavelet is proposed. Moving images are acquired through the visual system, the information fusion process is used to perform statistical analysis on the images containing motion information, the location of the motion area is determined, convolutional neural network technology is used to preprocess the initial motion image pose contour, and B-spline wavelet theory is used. The preprocessed motion image pose contour is detected, combined with the heuristic search method to obtain the pose contour points, and the motion image pose contour extraction is completed. The simulation results show that the proposed method has higher accuracy and shorter extraction time in extracting motion image pose contours.

Multiscale Products in B-spline Wavelet Domain: A New Method for Short Exon Detection

2018 ◽  
Vol 13 (5) ◽  
pp. 553-563 ◽  
Author(s):  
Xiaolei Zhang ◽  
Guishan Zhang ◽  
Yangjiang Yu ◽  
Guocheng Pan ◽  
Haitao Deng ◽  
...  
Keyword(s):  
New Method ◽  
Wavelet Domain ◽  
Spline Wavelet ◽  
B Spline ◽  
Short Exon ◽  
Multiscale Products

Study on Gasoline Combustion Dust with ASE and HPLC

2013 ◽  
Vol 750-752 ◽  
pp. 1852-1854
Author(s):  
Shu Jun Liu ◽  
Kun Feng ◽  
Hao Nan Xu ◽  
Ying Wang
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Solvent Extraction ◽  
Extraction Method ◽  
High Performance ◽  
Accelerated Solvent Extraction ◽  
Extraction Time ◽  
Efficient Extraction ◽  
Optimum Extraction

The gasoline combustion dusts was analyzed by accelerated solvent extraction-high performance liquid chromatography(ASE-HPLC) in this paper. The optimum extraction conditions were that extraction time was 30min, temperature was 120°C and the pressure was 100Mpa. It is a efficient extraction method for a laboratory to quickly extract gasoline combustion dust samples.

Method of Recognition and Feature Rapid Extraction about Multi-Objective Rounds Based on Rotating Scanning

2012 ◽  
Vol 152-154 ◽  
pp. 1840-1845
Author(s):  
Dao Hua Lu ◽  
Song Lian Xie ◽  
Jia Wang
Keyword(s):  
Hough Transform ◽  
Extraction Method ◽  
Contour Extraction ◽  
Transform Method ◽  
Scanning Method ◽  
Multi Objective ◽  
Rapid Extraction

To achieve the target features quick extraction, this paper uses a contour extraction method based on contour mark and outline of rotating scan target filling. It mainly introduces the principle and algorithm of Rand-omized Hough Transform method and rotating scanning method, uses a workpiece as an example to illustrate it with experiment.

Temperature Subarea Contour Extraction Method of Laser Deposition Shaping Layer Infrared Picture

Applied laser ◽  
2014 ◽  
Vol 34 (5) ◽  
pp. 415-421
Author(s):  
卞宏友 Bian Hongyou ◽  
范钦春 Fan Qinchun ◽  
李英 Li Ying ◽  
杨光 Yang Guang ◽  
王维 Wang Wei ◽  
...  
Keyword(s):  
Extraction Method ◽  
Laser Deposition ◽  
Contour Extraction

scholarly journals Optimization of Ultrasound-Assisted Extraction of Antioxidant Polyphenols from the Seed Coats of Red Sword Bean (Canavalia gladiate (Jacq.) DC.)

Antioxidants ◽  
2019 ◽  
Vol 8 (7) ◽  
pp. 200 ◽  
Author(s):  
Yue Zhou ◽  
Xiao-Yu Xu ◽  
Ren-You Gan ◽  
Jie Zheng ◽  
Ya Li ◽  
...  
Keyword(s):  
Extraction Method ◽  
Natural Antioxidants ◽  
Extraction Time ◽  
Antioxidant Compounds ◽  
Extraction Temperature ◽  
Ultrasound Assisted Extraction ◽  
Solid Ratio ◽  
Assisted Extraction ◽  
Ultrasound Assisted ◽  
Seed Coats

The seed coat of red sword bean (Canavalia gladiata (Jacq.) DC.) is rich in antioxidant polyphenols. It is often discarded as a byproduct with the consumption of red sword bean, since it is very thick and not consumed by people. The aim of this study was to develop an ultrasound-assisted extraction method to extract natural antioxidants from the seed coats. The extraction process was optimized by using response surface methodology. After the single-factor experiments, three key factors, including ethanol concentration, liquid/solid ratio, and extraction time, were selected and their interactions were studied using a central composite design. The optimal extraction condition was 60.2% hydroethanol, a liquid/solid ratio of 29.3 mL/g, an extraction time of 18.4 min, an extraction temperature of 50 °C, and ultrasound power of 400 W. Under the optimal conditions, antioxidant activity of the extract was 755.98 ± 10.23 μmol Trolox/g dry weight (DW), much higher than that from maceration (558.77 ± 14.42 μmol Trolox/g DW) or Soxhlet extraction (479.81 ± 12.75 μmol Trolox/g DW). In addition, the main antioxidant compounds in the extract were identified and quantified by high-performance liquid chromatography–diode array detection–tandem mass spectrometry (HPLC–DAD–MS/MS). The concentrations of digalloyl hexoside, methyl gallate, gallic acid, trigalloyl hexoside, and digallic acid were 15.30 ± 0.98, 8.85 ± 0.51, 8.76 ± 0.36, 4.27 ± 0.21, and 2.89 ± 0.13 mg/g DW. This study provides an efficient and green extraction method for the extraction of natural antioxidants from the bean coat of red sword bean. The extract of antioxidants might be added into functional foods or nutraceuticals with potential beneficial functions.

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