共查询到20条相似文献,搜索用时 15 毫秒
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计算机图形图像处理技术日益成熟,已经实现了在多个行业领域中广泛应用,为了加深对其认识的和理解,本文主要介绍了计算机图形学和图形图像处理的基本概念,基本工作原理,主要应用领域以及所进行计算机图形学与图形图像处理的技巧、技术等. 相似文献
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Murino V. Trucco A. 《Proceedings of the IEEE. Institute of Electrical and Electronics Engineers》2000,88(12):1903-1948
Underwater exploration is becoming more and more important for many applications involving physical, biological, geological, archaeological, and industrial issues. This paper aims at surveying the up-to-date advances in acoustic acquisition systems and data processing techniques, especially focusing on three-dimensional (3-D) short-range imaging for scene reconstruction and understanding. In fact, the advent of smarter and more efficient imaging systems has allowed the generation of good quality high-resolution images and the related design of proper techniques for underwater scene understanding. The term acoustic vision is introduced to generally describe all data processing (especially image processing) methods devoted to the interpretation of a scene. Since acoustics is also used for medical applications, a short overview of the related systems for biomedical acoustic image for motion is provided. The final goal of the paper is to establish the state of-the art of the techniques and algorithms for acoustic image generation and processing, providing technical details and results for the most promising techniques, and pointing out the potential capabilities of this technology for underwater scene understanding 相似文献
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Stephen J. Carey David R. W. Barr Bin Wang Alexey Lopich Piotr Dudek 《Analog Integrated Circuits and Signal Processing》2013,77(3):385-399
A prototype vision chip has been designed that incorporates a 20 × 64 array of processing elements on a 31 μm pitch. Each processor element includes 14 bits of digital memory in addition to seven analogue registers. Digital operands include NOR and NOT with operations of diffusion, subtraction, inversion and squaring available in the analogue domain. The cells of the array can be configured as an asynchronous propagation network allowing operations such as flood filling to occur with times of ~1 μs across the array. Exploiting this feature allows the chip to recognise the difference between closed and open shapes at 30,000 frames per second. The chip is fabricated in 0.18 μm CMOS technology. 相似文献
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《现代电子技术》2017,(19):98-101
提出基于改进约束最小二乘原理的可视化软件对远程模糊图像进行清晰化处理。首先,利用改进约束最小二乘法对图像进行去模糊处理,基于图像和噪声的随机性,寻找一个使统计误差达到最小的估计函数,进行反卷积运算后将生成的矩阵规则化,运用循环矩阵分解技术获取规则化后的去模糊图像;其次,利用改进Retinex滤波算法对图像采取增强处理,基于图像分为亮度图像和反射图像的特性,通过运用改进图像增强法对去模糊图像进行高斯平滑获取亮度图像后,即可获得反射图像;最后,采用高斯卷积函数对去模糊图像进行局部处理后可获得动态范围压缩良好的清晰图像。实验结果证明,通过运用该方法对远程图像实现了清晰化处理。 相似文献
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计算机图像处理技术是近年来新兴起来的一门技术,其强大的图形图像处理功能使其在包括绘画领域的多个领域内有着十分广发的应用。将计算机图像处理技术应用于油画创作中,成为当前美术绘画中的创作手法之一。本文在介绍计算机图像处理技术的基础上,对这一技术在油画创作中的应用进行了分析。 相似文献
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图像平滑处理方法的比较研究 总被引:3,自引:0,他引:3
图像平滑处理在数字图像处理中有着重要的作用。系统分析目前具有代表性的图像平滑处理方法,并用MATLAB7.0软件实现了各种算法。实验结果表明,各种方法均有各自的优缺点和适用条件,在做图像平滑处理之前,应对图像进行分析,针对图像的特点和应用需求选用合适的方法。 相似文献
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A. Beghdadi M.-C. Larabi A. Bouzerdoum K.M. Iftekharuddin 《Signal Processing: Image Communication》2013,28(8):811-831
Perceptual approaches have been widely used in many areas of visual information processing. This paper presents an overview of perceptual based approaches for image enhancement, segmentation and coding. The paper also provides a brief review of image quality assessment (IQA) methods, which are used to evaluate the performance of visual information processing techniques. The intent of this paper is not to review all the relevant works that have appeared in the literature, but rather to focus on few topics that have been extensively researched and developed over the past few decades. The goal is to present a perspective as broad as possible on this actively evolving domain due to relevant advances in vision research and signal processing. Therefore, for each topic, we identify the main contributions of perceptual approaches and their limitations, and outline how perceptual vision has influenced current state-of-the-art techniques in image enhancement, segmentation, coding and visual information quality assessment. 相似文献
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随着计算机科学技术的发展,计算机图形学已经成为现代计算机应用科学的一们重要学科,在社会各个领域计算机图形图像处理技术得到了广泛的应用.本文对计算机图形学的发展以及研究内容进行描述,对图形图像系统组成和基本内容进行了研究,对计算机图形学中图形图像处理应用的关键技术进行了研究. 相似文献