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A horizontal parallax table-top floating image system with freeform optical film structure 一种具有自由曲面光学薄膜结构的水平视差桌面浮动成像系统
SPIE Commercial + Scientific Sensing and Imaging Pub Date : 2016-06-01 DOI: 10.1117/12.2229400
Ping‐Yen Chou, Yi-Pai Huang, Chien-Chung Liao, Chuan-Chung Chang, Fu-Ming Chuang, Chao-Hsu Tsai
{"title":"A horizontal parallax table-top floating image system with freeform optical film structure","authors":"Ping‐Yen Chou, Yi-Pai Huang, Chien-Chung Liao, Chuan-Chung Chang, Fu-Ming Chuang, Chao-Hsu Tsai","doi":"10.1117/12.2229400","DOIUrl":"https://doi.org/10.1117/12.2229400","url":null,"abstract":"In this paper, a new structure of horizontal parallax light field 3D floating image display system was proposed. The structure consists of pico-projectors, Fresnel lens, micro-lens array and sub-lens array with freeform shape. By the functions of optical components, each light field of projectors could be controlled as a fan ray, which has high directivity in horizontal and wide scattered angle in vertical. Furthermore, according to the reverse light tracing and integral image display technique, horizontal parallax floating 3D could be demonstrated in the system. Simulated results show that the proposed 3D display structure has a good image quality and the crosstalk is also limited below 22.9%. Compared with other 3D technologies, this structure could have more benefits, including displaying real high resolution floating image, unnecessary of physical hardware on the image plane, scalability of large size system, without the noise from spinning component, and so on.","PeriodicalId":299313,"journal":{"name":"SPIE Commercial + Scientific Sensing and Imaging","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121024525","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: 1
Three-dimensional far-infrared imaging by using perspective thermal images 三维远红外成像采用透视热成像
SPIE Commercial + Scientific Sensing and Imaging Pub Date : 2016-06-01 DOI: 10.1117/12.2229522
D. Barada
{"title":"Three-dimensional far-infrared imaging by using perspective thermal images","authors":"D. Barada","doi":"10.1117/12.2229522","DOIUrl":"https://doi.org/10.1117/12.2229522","url":null,"abstract":"This paper proposes a method to obtain three-dimensional thermal radiation distribution. In the method, multiple oblique projection thermal images are obtained by moving a target object and three-dimensional thermal radiation distribution is reconstructed based on projection-slice theorem. In experiment, incandescent light bulbs or a plant is used as a sample object. The three-dimensional position measured is coincided with actual position and the principle is experimentally verified.","PeriodicalId":299313,"journal":{"name":"SPIE Commercial + Scientific Sensing and Imaging","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129103133","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
Display of travelling 3D scenes from single integral-imaging capture 显示旅行3D场景从单一的积分成像捕获
SPIE Commercial + Scientific Sensing and Imaging Pub Date : 2016-06-01 DOI: 10.1117/12.2222999
M. Martínez-Corral, A. Dorado, Seokmin Hong, J. Sola-Pikabea, G. Saavedra
{"title":"Display of travelling 3D scenes from single integral-imaging capture","authors":"M. Martínez-Corral, A. Dorado, Seokmin Hong, J. Sola-Pikabea, G. Saavedra","doi":"10.1117/12.2222999","DOIUrl":"https://doi.org/10.1117/12.2222999","url":null,"abstract":"Integral imaging (InI) is a 3D auto-stereoscopic technique that captures and displays 3D images. We present a method for easily projecting the information recorded with this technique by transforming the integral image into a plenoptic image, as well as choosing, at will, the field of view (FOV) and the focused plane of the displayed plenoptic image. Furthermore, with this method we can generate a sequence of images that simulates a camera travelling through the scene from a single integral image. The application of this method permits to improve the quality of 3D display images and videos.","PeriodicalId":299313,"journal":{"name":"SPIE Commercial + Scientific Sensing and Imaging","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129281733","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
Full-color holographic 3D imaging system using color optical scanning holography 全彩色全息三维成像系统采用彩色光学扫描全息
SPIE Commercial + Scientific Sensing and Imaging Pub Date : 2016-06-01 DOI: 10.1117/12.2229511
Hayan Kim, You Seok Kim, Taegeun Kim
{"title":"Full-color holographic 3D imaging system using color optical scanning holography","authors":"Hayan Kim, You Seok Kim, Taegeun Kim","doi":"10.1117/12.2229511","DOIUrl":"https://doi.org/10.1117/12.2229511","url":null,"abstract":"We propose a full-color holographic three-dimensional imaging system that composes a recording stage, a transmission and processing stage and reconstruction stage. In recording stage, color optical scanning holography (OSH) records the complex RGB holograms of an object. In transmission and processing stage, the recorded complex RGB holograms are transmitted to the reconstruction stage after conversion to off-axis RGB holograms. In reconstruction stage, the off-axis RGB holograms are reconstructed optically.","PeriodicalId":299313,"journal":{"name":"SPIE Commercial + Scientific Sensing and Imaging","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115063250","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
Increasing the depth of field in Multiview 3D images 增加多视图3D图像的景深
SPIE Commercial + Scientific Sensing and Imaging Pub Date : 2016-06-01 DOI: 10.1117/12.2229346
Beom-Ryeol Lee, J. Son, S. Yano, Ilkwon Jung
{"title":"Increasing the depth of field in Multiview 3D images","authors":"Beom-Ryeol Lee, J. Son, S. Yano, Ilkwon Jung","doi":"10.1117/12.2229346","DOIUrl":"https://doi.org/10.1117/12.2229346","url":null,"abstract":"A super-multiview condition simulator which can project up to four different view images to each eye is introduced. This simulator with the image having both disparity and perspective informs that the depth of field (DOF) will be extended to more than the default DOF values as the number of simultaneously but separately projected different view images to each eye increase. The DOF range can be extended to near 2 diopters with the four simultaneous view images. However, the DOF value increments are not prominent as the image with both disparity and perspective with the image with disparity only.","PeriodicalId":299313,"journal":{"name":"SPIE Commercial + Scientific Sensing and Imaging","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115064535","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
Full-color 3D display using binary phase modulation and speckle reduction 全彩色3D显示使用二进制相位调制和斑点减少
SPIE Commercial + Scientific Sensing and Imaging Pub Date : 2016-06-01 DOI: 10.1117/12.2229153
O. Matoba, K. Masuda, Syo Harada, K. Nitta
{"title":"Full-color 3D display using binary phase modulation and speckle reduction","authors":"O. Matoba, K. Masuda, Syo Harada, K. Nitta","doi":"10.1117/12.2229153","DOIUrl":"https://doi.org/10.1117/12.2229153","url":null,"abstract":"One of the 3D display systems for full-color reconstruction by using binary phase modulation is presented. The improvement of reconstructed objects is achieved by optimizing the binary phase modulation and accumulating the speckle patterns by changing the random phase distributions. The binary phase pattern is optimized by the modified Frenel ping-pong algorithm. Numerical and experimental demonstrations of full color reconstruction are presented.","PeriodicalId":299313,"journal":{"name":"SPIE Commercial + Scientific Sensing and Imaging","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129934710","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: 2
Use of display technologies for augmented reality enhancement 使用显示技术增强现实
SPIE Commercial + Scientific Sensing and Imaging Pub Date : 2016-06-01 DOI: 10.1117/12.2229044
K. Harding
{"title":"Use of display technologies for augmented reality enhancement","authors":"K. Harding","doi":"10.1117/12.2229044","DOIUrl":"https://doi.org/10.1117/12.2229044","url":null,"abstract":"Augmented reality (AR) is seen as an important tool for the future of user interfaces as well as training applications. An important application area for AR is expected to be in the digitization of training and worker instructions used in the Brilliant Factory environment. The transition of work instructions methods from printed pages in a book or taped to a machine to virtual simulations is a long step with many challenges along the way. A variety of augmented reality tools are being explored today for industrial applications that range from simple programmable projections in the work space to 3D displays and head mounted gear. This paper will review where some of these tool are today and some of the pros and cons being considered for the future worker environment.","PeriodicalId":299313,"journal":{"name":"SPIE Commercial + Scientific Sensing and Imaging","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125673124","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
Random phase-free computer holography and its applications 随机无相计算机全息术及其应用
SPIE Commercial + Scientific Sensing and Imaging Pub Date : 2016-06-01 DOI: 10.1117/12.2229729
T. Shimobaba, T. Kakue, T. Ito
{"title":"Random phase-free computer holography and its applications","authors":"T. Shimobaba, T. Kakue, T. Ito","doi":"10.1117/12.2229729","DOIUrl":"https://doi.org/10.1117/12.2229729","url":null,"abstract":"Random phase is required in computer-generated hologram (CGH) to widely diffuse object light and to avoid its concentration on the CGH; however, the random phase causes considerable speckle noise in the reconstructed image and degrades the image quality. We introduce a simple and computationally inexpensive method that improves the image quality and reduces the speckle noise by multiplying the object light with the designed convergence light. We furthermore propose the improved method of the designed convergence light with iterative method to reduce ringing artifacts. Subsequently, as the application, a lensless zoomable holographic projection is introduced.","PeriodicalId":299313,"journal":{"name":"SPIE Commercial + Scientific Sensing and Imaging","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131294310","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: 2
Comparison of the impact of different key types on ease of imaging and printing for replica key production 比较不同类型的钥匙对复制钥匙的成像和打印方便性的影响
SPIE Commercial + Scientific Sensing and Imaging Pub Date : 2016-06-01 DOI: 10.1117/12.2225183
J. Straub
{"title":"Comparison of the impact of different key types on ease of imaging and printing for replica key production","authors":"J. Straub","doi":"10.1117/12.2225183","DOIUrl":"https://doi.org/10.1117/12.2225183","url":null,"abstract":"Three-dimensional printing and scanning can be used to replicate keys. This is problematic due to the vast number of keyed locks installed and the effort required to convert these to a more resistant technology. This paper considers whether certain types of keys / locks may be more resistant to 3D scanning and printing. Data is collected and analyzed to determine whether a set of common features exist between keys that are more or less resistant to 3D scanning and printing-based duplication. Based on this analysis, the short, medium term and long term viability of keyed locks is considered.","PeriodicalId":299313,"journal":{"name":"SPIE Commercial + Scientific Sensing and Imaging","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115533206","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: 2
A study on the effects of RGB-D database scale and quality on depth analogy performance RGB-D数据库规模和质量对深度类比性能影响的研究
SPIE Commercial + Scientific Sensing and Imaging Pub Date : 2016-06-01 DOI: 10.1117/12.2229600
Sunok Kim, Youngjung Kim, K. Sohn
{"title":"A study on the effects of RGB-D database scale and quality on depth analogy performance","authors":"Sunok Kim, Youngjung Kim, K. Sohn","doi":"10.1117/12.2229600","DOIUrl":"https://doi.org/10.1117/12.2229600","url":null,"abstract":"In the past few years, depth estimation from a single image has received increased attentions due to its wide applicability in image and video understanding. For realizing these tasks, many approaches have been developed for estimating depth from a single image based on various depth cues such as shading, motion, etc. However, they failed to estimate plausible depth map when input color image is derived from different category in training images. To alleviate these problems, data-driven approaches have been popularly developed by leveraging the discriminative power of a large scale RGB-D database. These approaches assume that there exists appearance- depth correlation in natural scenes. However, this assumption is likely to be ambiguous when local image regions have similar appearance but different geometric placement within the scene. Recently, a depth analogy (DA) has been developed by using the correlation between color image and depth gradient. DA addresses depth ambiguity problem effectively and shows reliable performance. However, no experiments are conducted to investigate the relationship between database scale and the quality of the estimated depth map. In this paper, we extensively examine the effects of database scale and quality on the performance of DA method. In order to compare the quality of DA, we collect a large scale RGB-D database using Microsoft Kinect v1 and Kinect v2 on indoor and ZED stereo camera on outdoor environments. Since the depth map obtained by Kinect v2 has high quality compared to that of Kinect v1, the depth maps from the database from Kinect v2 are more reliable. It represents that the high quality and large scale RGB-D database guarantees the high quality of the depth estimation. The experimental results show that the high quality and large scale training database leads high quality estimated depth map in both indoor and outdoor scenes.","PeriodicalId":299313,"journal":{"name":"SPIE Commercial + Scientific Sensing and Imaging","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126422446","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: 1
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