2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems最新文献_第5页

Combining Multiple Image Features to Guide Automatic Portrait Cropping for Rendering Different Aspect Ratios 结合多个图像特征来指导自动肖像裁剪以呈现不同的长宽比

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.21

Claudio S. V. C. Cavalcanti, H. Gomes, J. E. R. D. Queiroz

{"title":"Combining Multiple Image Features to Guide Automatic Portrait Cropping for Rendering Different Aspect Ratios","authors":"Claudio S. V. C. Cavalcanti, H. Gomes, J. E. R. D. Queiroz","doi":"10.1109/SITIS.2010.21","DOIUrl":"https://doi.org/10.1109/SITIS.2010.21","url":null,"abstract":"Nowadays there exists a large variety of aspect ratios used for both image rendering (e.g. print media, TV, cinema screens etc.) and image acquisition devices (e.g. still and video cameras, scanners etc.). In order to maintain the image’s original aspect ratio when adjusting for a different media, some level of cropping may be required, but the automatic zoom and crop method may not produce satisfactory results regarding image contents. This paper proposes an automatic method that analyses images and estimates the relevant content areas, avoiding distortions and main subject chopping. The analysis is performed by four feature extractors, each producing a grayscale image which indicates relevant image areas. The outputs of these extractors are then combined by means of a Genetic Algorithm (GA) optimization. Experiments involving a subjective evaluation of a set of automatically cropped images have shown that 77% of the 35 human observers considered images adjusted by the proposed approach better than or similar to the outputs of the automatic zoom and crop method.","PeriodicalId":128396,"journal":{"name":"2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128445814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

A Performance Evaluation Framework for Library Search Engines 图书馆搜索引擎的性能评估框架

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.56

M. S. Pera, Yiu-Kai Ng

{"title":"A Performance Evaluation Framework for Library Search Engines","authors":"M. S. Pera, Yiu-Kai Ng","doi":"10.1109/SITIS.2010.56","DOIUrl":"https://doi.org/10.1109/SITIS.2010.56","url":null,"abstract":"Libraries offer valuable resources to library patrons. Unfortunately, formulating library queries that match the rigid keywords chosen by the Library of Congress in library records to retrieve relevant results can be difficult. In solving this problem, we have developed a library search engine, called EnLibS, which allows library patrons to post a query Q with commonly-used words and ranks the retrieved library records according to their degrees of resemblance with Q. To evaluate the performance of EnLibS, it is imperative to conduct a thorough assessment. However, this performance evaluation cannot be conducted due to the lack of benchmark datasets and standardized metrics. To address this issue, in this paper we introduce an evaluation framework which (i) statistically determines the size of a test dataset, (ii) includes a controlled experiment that employs technically-sound approaches for calculating the ideal number of appraisers and queries to be used in the experiment, and (iii) establishes standard metrics for evaluating a library search engine. The proposed evaluation model can be applied to assess the performance of library search engines in (i) reducing the number of keyword queries that retrieve no results, (ii) obtaining high precision in retrieving and accurately ranking relevant library records, and (iii) achieving an acceptable query processing time. We present a case study in which we apply the proposed evaluation framework on the library search engine at Brigham Young University and EnLibS to assess, compare, and contrast their performance.","PeriodicalId":128396,"journal":{"name":"2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130012781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Measuring Anthropometric Data for HRTF Personalization 测量HRTF个性化的人体测量数据

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.27

Martin Rothbucher, Tim Habigt, Julian Habigt, Thomas Riedmaier, K. Diepold

{"title":"Measuring Anthropometric Data for HRTF Personalization","authors":"Martin Rothbucher, Tim Habigt, Julian Habigt, Thomas Riedmaier, K. Diepold","doi":"10.1109/SITIS.2010.27","DOIUrl":"https://doi.org/10.1109/SITIS.2010.27","url":null,"abstract":"Nowadays, multimodal human-like sensing, e.g. vision, hap tics and audition seeks to improve interaction between an operator (human) and a teleoperator (robot) in human centered robotic systems. Head Related Transfer Function (HRTF) based sound rendering techniques, which seek to create a realistic virtual auditory space for listeners, have become a prominent concept in human robot interaction. Applications that demand high quality 3D sound synthesis are usually based on measured HRTFs of listeners. Recently, researchers propose to construct a set of personalized HRTFs using multiple linear regression models between anthropometric data and measured HRTFs, which implies the existence of a training HRTF dataset together with the corresponding anthropometric data. This paper focuses on the measurement of Head-Related transfer Functions (HRTFs) and the corresponding anthropometric data of a listener. Several state-of-the-art techniques of measuring the HRTFs are described. For measuring the anthropometric data, we develop a low budget approach, which enables us to measure the anthropometry of a person within short time at a high accuracy, whereas the hardware costs for the scanning system are significantly reduced.","PeriodicalId":128396,"journal":{"name":"2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122887261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Starfruit Color Maturity Classification Using Cr as Feature 以Cr为特征的杨桃颜色成熟度分类

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.25

R. Amirulah, M. Mokji, Z. Ibrahim

引用次数: 11

Analysis of Interactions on Coordination for Design Projects 设计项目协调中的交互分析

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.62

N. Matta, Hassan Atifi, M. Sediri, Mohammed Sagdal

引用次数: 14

Car Plate Character Extraction and Recognition Using Stroke Analysis 基于笔划分析的车牌特征提取与识别

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.16

S. Setumin, U. U. Sheikh, S. Abu-Bakar

引用次数: 9

A Temporal Spatial Access Method 一种时空存取方法

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.49

A. Touir, H. Mathkour, Manan Almusallam

引用次数: 0

A Cross-disciplinary Collaborative Research Platform - Study on Qinghai Lake Joint Research Environment 一个跨学科协同研究平台——青海湖联合研究环境研究

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.44

Juan Zhao, S. Li, Jianjun Yu, Kejun Dong, Kai Nan, Baoping Yan

引用次数: 0

A Perceptually Adaptive Scheme for Image Bit-Inversion-Based Watermarks 一种基于图像位反转水印的感知自适应方案

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.29

T. Kimoto, Fumihiko Kosaka

引用次数: 1

Classifying Web Pages Using Information Extraction Patterns Preliminary Results and Findings 利用信息抽取模式对网页进行分类的初步结果和发现

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.42

Lay-Ki Soon, Sang Ho Lee

引用次数: 1