中国科学院机构知识库网格系统: 检索

Revealing subtle vegetation productivity dynamics in China via a reference-based framework 期刊论文 OAI收割
GISCIENCE & REMOTE SENSING, 2026, 卷号: 63, 期号: 1, 页码: 2617775
作者: Zhang, Shuyi; Ci, Mengyao; Zhang, Rui; Tang, Hanxin; Jin, Ziwen

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收藏 | 浏览/下载：1/0 | 提交时间：2026/02/09

Reference-based gross primary production long-term dynamics ecological zones human activity zones

Neural texture transfer assisted video coding with adaptive up-sampling 期刊论文 OAI收割
SIGNAL PROCESSING-IMAGE COMMUNICATION, 2022, 卷号: 107, 页码: 10
作者: Yu, Li; Chang, Wenshuai; Quan, Weize; Xiao, Jimin; Yan, Dong-Ming

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收藏 | 浏览/下载：67/0 | 提交时间：2022/07/25

High-efficiency video coding (HEVC) Reference-based super-resolution Low bitrate Video compression Deep learning Machine learning

Estimating land evapotranspiration from potential evapotranspiration constrained by soil water at daily scale 期刊论文 OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2022, 卷号: 834, 页码: 14
作者: Liu, Zhaofei

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收藏 | 浏览/下载：66/0 | 提交时间：2022/09/21

Actual evapotranspiration Eddy covariance observation Temperature based potential evapotranspiration Reference evapotranspiration Daily evapotranspiration Complementary relationship

Estimating land evapotranspiration from potential evapotranspiration constrained by soil water at daily scale 期刊论文 OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2022, 卷号: 834, 页码: 14
作者: Liu, Zhaofei

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收藏 | 浏览/下载：58/0 | 提交时间：2022/09/21

Actual evapotranspiration Eddy covariance observation Temperature based potential evapotranspiration Reference evapotranspiration Daily evapotranspiration Complementary relationship

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收藏 | 浏览/下载：71/0 | 提交时间：2020/05/19

Potential evapotranspiration Reference crop evapotranspiration temperature-based radiation-based combination-based

A Local Image Enhancement Method Based on Adjacent Pixel Gray Order-preserving Principle 会议论文 OAI收割
5th International Symposium on Photoelectronic Detection and Imaging (ISPDI) - Infrared Imaging and Applications, Beijing, June 25-27, 2013
作者: Fan XP(范晓鹏); Cai TF(蔡铁峰); Zhu F(朱枫)

收藏 | 浏览/下载：76/0 | 提交时间：2013/12/26

The paper is committed in local image enhancement. At first, the authors propose an adjacent pixel gray order-preserving principle. Adjacent pixel gray order-preserving principle is the basement of local enhancement method which ensures that there is no distortion in processed image. And then, the authors propose an iterative algorithm, which could stretch gray-scale difference of adjacent pixels in premise of not changing gray magnitude relationship between adjacent pixels. At last, the authors propose a totally reference image quality assessment method based on adjacent pixel gray order-preserving principle. According to this quality assessment method, the authors made a set of comparative experiments with local histogram equalization and method. Experimental results show that the proposed enhancement method can get higher score and provide better visual effects, fully demonstrating its effectiveness. According to this quality assessment method, the proposed method shows a good effectiveness, through experimental results and comparison with local histogram equalization method.

Study on the difference between turfy soil and normal peat soil in China (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Vibration, Structural Engineering and Measurement, ICVSEM2011, October 21, 2011 - October 23, 2011, Shanghai, China
作者: Nie L.

收藏 | 浏览/下载：63/0 | 提交时间：2013/03/25

As the special soil turfy soil and peat soil in China contained some similar properties with high void ratio high water content high organic content etc. But turfy soil also had properties which difference from peat soil. In this paper based on the formation of the cause and geological environment and geomorphologic characteristics of geological in the quaternary took the typical and widespread turfy soil and peat soil regions for example systematically discussed the material composition and macroscopic and microcosmic structural features put further research on the physical chemistry mechanical characteristics. Then the come to the conclusion that the essential reason for difference between turfy soil and peat soil were decomposition degree and organic content. The result that worse engineering properties such as higher the moisture content porosity compressibility internal cohesion and the lower specific weight consolidation coefficient and permeability were due to the lower decomposition degree and higher organic content of turfy soil than peat soil. It can provide reference to the practical projects of turfy soil to distinguish peat soil according to this characteristic. (2012) Trans Tech Publications.

Research of software re-injection technology for aerospace camera controller in-orbit (EI CONFERENCE) 会议论文 OAI收割
2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China
Xu W.

收藏 | 浏览/下载：45/0 | 提交时间：2013/03/25

For the factors of increased of tasks enhancements of functions and improvement of integrity and complexity in aerospace camera application system has raised high and long-term in-orbit autonomy and reliability requirements on camera controller. Based on an actual project application background this paper has put forward a design method of new high reliability aerospace camera controller in-orbit software reinjection instruction sequence which use TSC695F as kernel CPU and process flow of bootstrap receive cache checkout and storage update data. Finally combined with specific test module for camera controller software re-injection the validity of the software re-injection method raised here has been verified. Still here gives out reference codes of update data package which generated by the ground. 2012 IEEE.

Image quality assessment based on gradient complex matrix (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Systems and Informatics, ICSAI 2012, May 19, 2012 - May 20, 2012, Yantai, China
作者: Wang Y.; Wang Y.; Wang Y.; Wang Y.; Wang Y.

收藏 | 浏览/下载：41/0 | 提交时间：2013/03/25

An image quality assessment model based on gradient complex matrix is proposed. The vertical and horizontal gradient information of grayscale image is calculated. Complex number is used to construct the measuring matrix. Singular value decomposition is performed in order to obtain the main structure information of the image. The singular value feature vectors of the image gradient complex matrices corresponding to the reference image and the distorted image are used to measure the structural similarity of the two images. PSNR is taken as a tool to evaluate the gradient distribution similarity. Their properties are analyzed by using LIVE database and nonlinearity regression function. 2012 IEEE.

Research on energy characteristics of aerospace relay mirror system (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
Liu C.; Zhong X.; Piao Y.; Jin G.

收藏 | 浏览/下载：55/0 | 提交时间：2013/03/25

Aerospace Relay Mirror System (ARMS) as a new concept weapon used in reflection of High Energy Laser (HEL) in space is studied. It extends the attacking range of Ground Based Laser (GBL) weapons enormously. Relevant researches have been carried out for many years. The structures and operating theory of the entire system consists of ground-based high energy laser weapon and space-based relay mirror. The main work of this study is focused on the analysis of relay mirror energy characteristics to deduce the relationship among the attacking range of weapon and diameter of ARMS and target irradiance. Calculation examples are also given. The results proved the strong points and feasibility of ARMS theoretically further. It is summarized that more importance should be attached to ARMS development. The results given in this paper can be reference of an actual ARMS system to some extends. 2011 IEEE.