2016 International Image Processing, Applications and Systems (IPAS)最新文献

Fast motion estimation for HEVC video coding HEVC视频编码的快速运动估计

2016 International Image Processing, Applications and Systems (IPAS) Pub Date : 2016-11-05 DOI: 10.1109/IPAS.2016.7880120

Randa Khemiri, N. Bahri, Fatma Belghith, F. Sayadi, Mohamed Atri, N. Masmoudi

引用次数: 13

Statistical analysis of intra prediction in HEVC video encoder HEVC视频编码器帧内预测的统计分析

2016 International Image Processing, Applications and Systems (IPAS) Pub Date : 2016-11-01 DOI: 10.1109/IPAS.2016.7880122

Ons Bougacha, H. Kibeya, N. Belhadj, M. A. B. Ayed, N. Masmoudi

引用次数: 2

Dominant and minor sum and difference histograms for texture description 纹理描述的主次和差直方图

2016 International Image Processing, Applications and Systems (IPAS) Pub Date : 2016-11-01 DOI: 10.1109/IPAS.2016.7880136

Faten Sandid, A. Douik

引用次数: 5

FPGA implementation of improved binarizer design for context-based adaptive binary arithmetic coder FPGA实现改进的基于上下文的自适应二进制算术编码器的二进制化设计

2016 International Image Processing, Applications and Systems (IPAS) Pub Date : 2016-11-01 DOI: 10.1109/IPAS.2016.7880123

Nihel Neji, M. Jridi, A. Alfalou, N. Masmoudi

{"title":"FPGA implementation of improved binarizer design for context-based adaptive binary arithmetic coder","authors":"Nihel Neji, M. Jridi, A. Alfalou, N. Masmoudi","doi":"10.1109/IPAS.2016.7880123","DOIUrl":"https://doi.org/10.1109/IPAS.2016.7880123","url":null,"abstract":"New and modern video encoders employ the CABAC (Context-Based Adaptive Binary Arithmetic Coding) to allow a high compression and/or improved video quality. CABAC is composed of three main blocks which are binarizer, context modeler and binary arithmetic coder block. Since the binarizer block is used in the beginning of the encoder process, the whole performance of CABAC depends a lot on the design of the binarizer. In this paper, we propose an efficient implementation of this block. The novelty of the proposed design with respect to existing ones is that it takes advantages of new entropy coding's characteristics. The strength of the propose binarizer is that it allows the binarization with the seven methods indicated in the coding standard. Moreover, the proposed design can be integrated into CABAC module of the encoder to generate the bins of the Syntax Elements (SE). One uniquely interesting feature of the proposed design is that it could be configured for multi-standard (HEVC/H264) scenario. The proposed architecture is found to offer many advantages in terms of hardware complexity, regularity and modularity. Experimental results obtained from Xilinx Spartan 6 FPGA implementation show the advantage of the proposed method. More particularly, the proposed architecture consumes about 376 slices and able to process at 287 MHz.","PeriodicalId":283737,"journal":{"name":"2016 International Image Processing, Applications and Systems (IPAS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132512410","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: 4

Reduction in CABAC encoding time of the HEVC 减少HEVC的CABAC编码时间

2016 International Image Processing, Applications and Systems (IPAS) Pub Date : 2016-11-01 DOI: 10.1109/IPAS.2016.7880140

S. Charfi, Nihel Neji, F. Kammoun, N. Masmoudi

引用次数: 2

Breast masses diagnosis using supervised approaches 使用监督方法诊断乳腺肿块

2016 International Image Processing, Applications and Systems (IPAS) Pub Date : 2016-11-01 DOI: 10.1109/IPAS.2016.7880134

H. Boulehmi, H. Mahersia, K. Hamrouni

{"title":"Breast masses diagnosis using supervised approaches","authors":"H. Boulehmi, H. Mahersia, K. Hamrouni","doi":"10.1109/IPAS.2016.7880134","DOIUrl":"https://doi.org/10.1109/IPAS.2016.7880134","url":null,"abstract":"Computer Aided Diagnosis (CAD) is usually used to assist radiologists while interpreting mammograms and help them improving breast cancer diagnosis accuracy at earlier stages. One of the main breast cancer early indicators is the presence of masses. CAD systems main target is to detect eventual masses from digital mammograms characterize them and evaluate their malignancy. In this paper, we introduce a new approach of breast masses diagnosis on digital mammograms, which begins with a preprocessing step where artifacts and pectoral muscle are removed and then the contrast is enhanced. The second step consists on segmenting breast masses, using Generalized Gaussian Density (GGD) estimation and a Bayesian backpropagation neural network. The last step is masses characterization using a combination of morphologic and textural features which are exploited to classify the segmented masses into benign and malignant classes, using a neuro-fuzzy system (ANFIS). The proposed CAD system was tested on the MIAS database and masses' detection rate has reached 97.08% with the GGD analysis and bayesian back-propagation neural network. 97% of these detected masses were correctly classified with an ANFIS system.","PeriodicalId":283737,"journal":{"name":"2016 International Image Processing, Applications and Systems (IPAS)","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115594651","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: 3

Efficient implementation of a real-time lane departure warning system 有效实施车道偏离实时预警系统

2016 International Image Processing, Applications and Systems (IPAS) Pub Date : 2016-11-01 DOI: 10.1109/IPAS.2016.7880072

Yassin Kortli, M. Marzougui, Mohamed Atri

{"title":"Efficient implementation of a real-time lane departure warning system","authors":"Yassin Kortli, M. Marzougui, Mohamed Atri","doi":"10.1109/IPAS.2016.7880072","DOIUrl":"https://doi.org/10.1109/IPAS.2016.7880072","url":null,"abstract":"Because of the increasing number of population of vehicles, the road traffic accidents are becoming more and more serious in recent years. Hence, improving driver assistance systems for security has become an important area of research. This paper presents a robust lane detection and tracking system based on monocular vision. We use the Lane Departure Warning (LDW) systems to detect the position of the vehicle with respect to the lane boundary. An algorithm to detect the road lane marking and to control the direction of the vehicle is proposed. Our work consists in establishing a Region Of Interest (ROI) of the road images, data pre-processing using the Gaussian filter and then apply the Canny edge detector to enhance lane boundaries. A method to extract lane boundaries based on color information and image segmentation by using the histogram threshold, Hough transform is proposed, and the current vehicle position is obtained. In such a case, we can decide if the vehicle is doing lane departure used on the vehicle's position, the system sends a warning message to the driver. Our proposed algorithm works accurately with various lighting conditions as well as on different road types.","PeriodicalId":283737,"journal":{"name":"2016 International Image Processing, Applications and Systems (IPAS)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114626419","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: 16

A FPGA-based implementation of JPEG encoder 基于fpga的JPEG编码器实现

2016 International Image Processing, Applications and Systems (IPAS) Pub Date : 2016-11-01 DOI: 10.1109/IPAS.2016.7880066

Wadhah Ayadi, W. Elhamzi, Mohamed Atri

引用次数: 1

EMD method for automatic ECG fiducial points detection 用于自动检测心电图靶标点的 EMD 方法

2016 International Image Processing, Applications and Systems (IPAS) Pub Date : 2016-11-01 DOI: 10.1109/IPAS.2016.7880064

Dhouha Rezgui, Z. Lachiri

引用次数: 4

An optimized and unified architecture design for H.265/HEVC 1-D inverse core transform H.265/HEVC 1-D反核变换优化统一架构设计

2016 International Image Processing, Applications and Systems (IPAS) Pub Date : 2016-11-01 DOI: 10.1109/IPAS.2016.7880144

Ahmed Kammoun, Fatma Belghith, H. Loukil, N. Masmoudi

引用次数: 4