检索结果-内蒙古大学图书馆

A shift-resisting public watermark system for protecting image processing software

IEEE TRANSACTIONS ON CONSUMER ELECTRONICS 2000年第3期46卷 404-414页

作者： Chen, DY Ming, OY Wu, JL Natl Taiwan Univ Dept Comp Sci & Informat Engn Commun & Multimedia Lab Taipei 10764 Taiwan

Digital watermark is a technique used to protect the ownership of images and their associated software. A useful watermark scheme should be visually imperceptible and must be robust to resist various attacks: such as JPEG compression, pixel-shifting, cropping, blurring, etc. In this paper we propose a public watermarking system to protect image processing software and images. We embed a binary image as watermark in DCT domain, and the watermarked image is imperceptible by human visual system and robust to image shifting or cropping. We use feature-based approach to synchronize the watermark positions during embedding and extracting For better image quality the more complex in a block, the more bits can be embedded Our approach doesn't need the original which applications such as real-time image for is a useful feature in watermark extraction, protecting software generated panorama images.

关键词： software protection Watermarks image processing software

来源：评论

学校读者我要写书评

暂无评论

PMAA-CeO2 nanoparticle-based paper microfluidic device with customized image processing software for antioxidant assay

引用

ANALYTICAL AND BIOANALYTICAL CHEMISTRY 2020年第29期412卷 8197-8209页

作者： Sachdev, Abhay Samanta, Pradipta Kumar, Vijayesh Garima Kandhal, Karina Matai, Ishita Cent Sci Instruments Org CSIR CSIO Ubiquitous Analyt Techn Div Chandigarh 160030 India CSIO Acad Sci & Innovat Res AcSIR Chandigarh 160030 India

Despite recent advancements in the field of microfluidic paper-based analytical devices (mu PADs), a key challenge remains in developing a simple and efficient mu PAD with customized imaging capabilities for antioxidant assays. In the present study, we report a facile approach for mu PAD fabrication through the application of transparent nail paint leading to creation of hydrophobic barriers and well-defined channels. The resultant mu PADs were then characterized through scanning electron microscopy and contact angle measurements. The resolution and functional features of the fabricated mu PAD were amenable to the intended assay. The mu PAD's impregnated poly(methacrylic acid) (PMAA)-coated cerium oxide (CeO2) nanoparticles oxidized the 3,3 ',5,5 '-tetramethylbenzidine (TMB) leading to the formation of a blue-colored charge-transfer complex. The addition of different antioxidant standard solutions resulted in a reduction in the blue color in a dose-dependent manner which could be observed visually. The color intensity of the PMAA-CeO(2)nanoparticle@TMB oxidation product was inversely proportional to the antioxidant concentration and was measured using customized in-house MATLAB-based image processing software. Importantly, PMAA-CeO(2)nanoparticle-based mu PADs demonstrated good analytical characteristics and were able to be stored for long periods without any loss of activity. Moreover, potential interferents did not pose any threat to the colorimetric signal read-out for determination of antioxidant activity. The developed method was further applied for the assessment of antioxidant activity in a variety of tea samples and performed satisfactorily in comparison with a commonly used antioxidant detection method. Collectively, the developed mu PAD-based platform holds great potential as a low-cost, convenient, portable and reliable method for pursuing various on-site antioxidant assays.

关键词： mu PAD Nail paint Cerium oxide Colorimetric Antioxidant activity image processing software

来源：评论

学校读者我要写书评

暂无评论

photoQuad: A dedicated seabed image processing software, and a comparative error analysis of four photoquadrat methods

引用

JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY 2012年 424卷 99-108页

作者： Trygonis, V. Sini, M. Univ Aegean Dept Marine Sci Fisheries Management & Fisheries Acoust Lab Mitilini 81100 Greece Univ Aegean Dept Marine Sci Marine Biodivers & Coastal Management Lab Mitilini 81100 Greece

Photographic quadrat sampling is commonly used for the study of sessile benthic communities. However, photoquadrat data handling is fragmented into several processing methods, and there is a scarcity of dedicated software tools that integrate all major analysis options. photoQuad is a new software system for advanced image processing of photographic samples, dedicated to ecological applications. The software integrates a series of methods for the extraction of species area, percentage coverage, or presence/absence information, including random point counts (RP), grid cell counts (CL), freehand regions (FH), and image segmentation-based regions (SG). These are simultaneously functional in a layer-based environment, further supported by a variety of tools for image enhancement, image calibration, automatic quadrat boundary detection, and management of user-specific species libraries. The paper documents the main features of photoQuad, and demonstrates its performance through the simultaneous application of the RP, CL, FH, and SG methods on identical datasets, and the comparison of errors in species area and coverage measurements. The simulated data used for reference are disk-shaped patches, whose area and density statistics are equivalent to three benthic species characteristic of Mediterranean coralligenous communities. The analysis indicated that measurement methods differed in area and coverage bias, as well as in their sensitivity to species size. Large patches were accurately measured by all methods in terms of mean scaled error, but CL and RP provided high error variance, and their performance deteriorated with decreasing patch size;the region-based SG and FH methods provided the lowest errors and were both robust to patch size. The image and quadrat calibration process showed no statistically significant effect on the outputs, although further analysis is needed to validate this result. Overall, photoQuad constitutes a powerful software for elaborate analysis

关键词： Coralligenous Benthic communities Coverage measurement image processing software Photoquadrat sampling Simulation

来源：评论

学校读者我要写书评

暂无评论

The application of image processing software-Photoshop in Environmental Design

The application of image processing software-Photoshop in En...

引用

Conference on PIAGENG 2010 - Photonics and Imaging for Agricultural Engineering

作者： Dong, Baohua Zhang, Chunmi Zhuo, Chen Hebei Technol Normal Coll Educ Inst Qinhuangdao Hebei Peoples R China Hebei Technol Normal Coll Art Inst Qinhuangdao Hebei Peoples R China

ISBN: (纸本)9780819482457

In the process of environmental design and creation, the design sketch holds a very important position in that it not only illuminates the design's idea and concept but also shows the design's visual effects to the client. In the field of environmental design, computer aided design has made significant improvement. Many types of specialized design software for environmental performance of the drawings and post artistic processing have been implemented. Additionally, with the use of this software, working efficiency has greatly increased and drawings have become more specific and more specialized. By analyzing the application of photoshop image processing software in environmental design and comparing and contrasting traditional hand drawing and drawing with modern technology, this essay will further explore the way for computer technology to play a bigger role in environmental design.

关键词： Environmental Design image processing software Performance Application

来源：评论

学校读者我要写书评

暂无评论

An assessment of the diagnostic criteria for sessile serrated adenoma/polyps: SSA/Ps using image processing software analysis for Ki67 immunohistochemistry

引用

DIAGNOSTIC PATHOLOGY 2012年第1期7卷 59-59页

作者： Fujimori, Yukari Fujimori, Takahiro Imura, Johji Sugai, Tamotsu Yao, Takashi Wada, Ryo Ajioka, Yoichi Ohkura, Yasuo Toyama Univ Grad Sch Med & Pharmaceut Sci Dept Diagnost Pathol Toyama 9300194 Japan Dokkyo Med Univ Sch Med Dept Surg & Mol Pathol Shimotsuga Tochigi 3210293 Japan Iwate Med Univ Sch Med Dept Pathol Div Diagnost Mol Pathol Morioka Iwate 0208505 Japan Juntendo Univ Sch Med Dept Human Pathol Tokyo 1138421 Japan Juntendo Univ Sch Med Juntendo Shizuoka Hosp Dept Pathol Shizuoka Japan Niigata Univ Grad Sch Med & Dent Sci Div Mol & Diagnost Pathol Niigata 9518510 Japan Kyorin Univ Sch Med Dept Pathol Mitaka Tokyo 1818611 Japan

Background: Serrated polyps belong to a heterogeneous group of lesions that are generally characterized morphologically. This type of lesion is thought to be the precursor of sporadic carcinomas with microsatellite instability, and probably also the precursor for CpG island-methylated microsatellite-stable carcinomas. For practical purposes, according to the 2010 WHO classification, the diagnostic criteria for sessile serrated adenomas/polyps (SSA/Ps) was established by the research project "Potential of Cancerization of Colorectal Serrated Lesions" led by the Japanese Society for Cancer of the Colon and Rectum. The aim of this study was to evaluate the validity of the morphologic characteristics established in Japan by using immunohistochemical staining for Ki-67. Methods: To calculate the target cells, 2 contiguous crypts which could be detected from the bottom of the crypt to the surface of the colorectal epithelium were selected. To validate the proliferative activity, we evaluated the percentage and the asymmetrical staining pattern of Ki67 positive cells in each individual crypt. To examine the immunoreactivity of Ki67, computer-assisted cytometrical analysis was performed. Results: SSA/Ps had a higher proliferative activity as compared to hyperplastic polyps (HPs) based on the difference in incidence of Ki67 positive cells, and the former also exhibited a significantly higher asymmetric distribution of these cells as compared to HPs, even in lesions with a diameter <10 mm. Conclusion: We conclude that assessment of the pathological findings of SSA/Ps, including crypt dilation, irregularly branching crypts, and horizontally arranged basal crypts (inverted T- and/or L-shaped crypts) is appropriate to show a significantly higher proliferative activity as compared to HPs. Further, the use of two-dimensional image analysis software is an objective and reproducible method for this type of histological examination. Virtual slides: The virtual slides for this article

关键词： Sessile serrated adenoma/ polyp Ki-67 Immunohistochemistry image processing software Morphologic characteristics

来源：评论

学校读者我要写书评

暂无评论

UAV and the comparison of image processing software

引用

INTERNATIONAL JOURNAL OF INTELLIGENT UNMANNED SYSTEMS 2017年第1期5卷 18-27页

作者： Kaimaris, Dimitris Patias, Petros Sifnaiou, Maria Aristotle Univ Thessaloniki Sch Spatial Planning & Dev Engn Thessaloniki Greece Aristotle Univ Thessaloniki Sch Rural & Surveying Engn Thessaloniki Greece

Purpose - The purpose of this paper is to discuss unmanned aerial vehicle (UAV) and the comparison of image processing software. Design/methodology/approach - images from a drone are used and processed with new digital image processing software, Imagine UAV (R) of Erdas imagine 2015 (R). The products (Digital Surface Model and ortho images) are validated with check points (CPs) measured in the field with Global Positioning System. Moreover, similar products are produced by Agisoft PhotoScan (R) software and are compared with both the products of Imagine UAV and the CPs. Findings - The results reveal that the two software tools are almost equivalent, while the accuracies of their products are similar to the accuracies of the external orientations of drone images. Originality/value - Comparison of image processing software.

关键词： UAV DSM image processing software Ortho image

来源：评论

学校读者我要写书评

暂无评论

An image-processing software package - UU and Fig for optical metrology applications

An image-processing software package - UU and Fig for optica...

引用

2nd Conference of the Optics-and-Photonics-Society-of-Singapore / International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN)

作者： Chen, Lujie Singapore Univ Technol & Design Singapore 138682 Singapore

ISBN: (纸本)9780819495679

Modern optical metrology applications are largely supported by computational methods, such as phase shifting [1], Fourier Transform [2], digital image correlation [3], camera calibration [4], etc, in which image processing is a critical and indispensable component. While it is not too difficult to obtain a wide variety of image-processing programs from the internet;few are catered for the relatively special area of optical metrology. This paper introduces an image-processing software package: UU (data processing) and Fig (data rendering) that incorporates many useful functions to process optical metrological data. The cross-platform programs UU and Fig are developed based on wxWidgets. At the time of writing, it has been tested on Windows, Linux and Mac OS. The user-interface is designed to offer precise control of the underline processing procedures in a scientific manner. The data input/output mechanism is designed to accommodate diverse file formats and to facilitate the interaction with other independent programs. In terms of robustness, although the software was initially developed for personal use, it is comparably stable and accurate to most of the commercial software of similar nature. In addition to functions for optical metrology, the software package has a rich collection of useful tools in the following areas: real-time image streaming from USB and GigE cameras, computational geometry, computer vision, fitting of data, 3D image processing, vector image processing, precision device control (rotary stage, PZT stage, etc), point cloud to surface reconstruction, volume rendering, batch processing, etc. The software package is currently used in a number of universities for teaching and research.

关键词： image processing software optical metrology UU Fig

来源：评论

学校读者我要写书评

暂无评论

A software system for laboratory experiments in image processing

引用

IEEE TRANSACTIONS ON EDUCATION 2000年第4期43卷 455-459页

作者： Robinson, JA Mem Univ Newfoundland Fac Engn & Appl Sci St Johns NF A1B 3X5 Canada

Laboratory experiments for image processing courses are usually software implementations of processing algorithms, but students of image processing come from diverse backgrounds with widely differing software experience, To avoid learning overhead, the software system should be easy to learn and use, even for those with no exposure to mathematical programming languages or object-oriented programming. The class library for image processing (CLIP) supports users with knowledge of C, by providing three C++ types with small public interfaces, including natural and efficient operator overloading. CLIP programs are compact and fast, Experience in using the system in undergraduate and graduate teaching indicates that it supports subject matter learning with little distraction from language/system learning.

关键词： C plus plus class libraries image processing education image processing software

来源：评论

学校读者我要写书评

暂无评论

Adaptation of the Remote Food Photography Method to Assess Infant Intake During Bottle-Feeding of Ready-to-Feed Formula

引用

MATERNAL AND CHILD NUTRITION 2025年第0期 e70016页

作者： Narayanan, Bhagya L. Ventura, Jonathan D. Ventura, Alison K. Calif Polytech State Univ San Luis Obispo Ctr Hlth Res Dept Kinesiol & Publ Hlth San Luis Obispo CA 93407 USA Calif Polytech State Univ San Luis Obispo Dept Comp Sci & Software Engn San Luis Obispo CA USA

Bottle-fed infants are at a higher risk for obesity, yet interventions to modify bottle-feeding patterns have shown limited success. Accurate assessment of bottle-feeding patterns is an important basis for targeted interventions. Caregiver reports are susceptible to bias, highlighting the need for more robust methods. One promising approach is the Remote Food Photography Method (RFPM), which involves analysis of digital photographs to objectively assess intake. The purpose of this study was to adapt RFPM to measure the amount of ready-to-feed formula in bottles. Research assistants took digital photographs of bottles with varying amounts of formula and assessed bottle weight to create a predictive model data set (n = 100) and an external validation data set (n = 100). image processing software was used to determine the area of formula in pixels. Formula area was regressed on actual bottle weight and the resulting regression parameters were used to calculate estimated bottle weights. Predictive models were validated by applying them to the external validation data set. Within the predictive model data set, the mean difference between estimated and actual bottle weight was equivalent within +/- 10% equivalence bounds (0.0005 g [90% CI, -0.45, 0.45]). Within the external validation data set, the mean difference between estimated and actual bottle weight was also equivalent within +/- 10% equivalence bounds (-17.0 g [90% CI, -18.85, -15.17]). Findings were similar when bottle weight was converted to calories. In sum, the present study provided preliminary evidence for the feasibility and accuracy of an adapted RFPM to assess changes in the amount and caloric content of ready-to-feed formula in bottles.

关键词： bottle-feeding dietary assessment food photography image processing software infant feeding practices rapid infant weight gain ready-to-feed formula

来源：评论

学校读者我要写书评

暂无评论

A new approach to develop a standardized method for assessment of acetylcholinesterase inhibitory activity of different extracts using HPTLC and image analysis

引用

JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES 2014年第1期955卷 50-57页

作者： Abou-Donia, Amina H. Darwish, Fikria A. Toaima, Soad M. Shawky, Eman Takla, Sarah S. Univ Alexandria Fac Pharm Dept Pharmacognosy Alexandria 21521 Egypt

A new, validated, sensitive and cheap method for preliminary quantitative evaluation of acetylcholine esterase inhibitory activity is presented. The proposed method combines HPTLC with data analysis by means of image processing software. An in-situ TLC autobiographic method was employed in which regions of the TLC plate which contain acetylcholinesterase inhibitors show up as white spots against the yellow background. Bleaching of the yellow color, caused by substances with acetylcholinesterase inhibitory activity was observed and recorded using a digital camera. imageJ, JustTLC and Sorbfil, three image processing programs were evaluated for quantitative measurements. For evaluation of the assay efficiency, acetylcholinesterase inhibitory activity of different Amaryllidaceae plant extracts was expressed as Standard Activity Coefficients (SACs), which are relative measures of the activity to the well known acetylcholinesterase inhibitor eserine. We attempted to validate the method according to the ICH guideline. Different statistical data revealed that all image analysis software are able to detect the acetylcholine esterase inhibitory activity at very low concentration levels with the imageJ program being the best of all three tested software regarding sensitivity, linearity and precision. (C) 2014 Elsevier B.V. All rights reserved.

关键词： HPTLC Autobiography Acetylcholinesterase inhibitory activity image processing software Quantitative

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：