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原稿種別: 表紙
p.
Cover1-
発行日: 1992/07/28
公開日: 2017/10/02
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原稿種別: 付録等
p.
App1-_2_
発行日: 1992/07/28
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原稿種別: 目次
p.
3-25
発行日: 1992/07/28
公開日: 2017/10/02
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鄭 且根, 相澤 清晴, 斉藤 隆弘, 羽鳥 光俊
原稿種別: 本文
p.
1-2
発行日: 1992/07/28
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This paper addresses a study on reconstruction of image signal with zero-crossings and additional information based on dyadic wavelet transform. At first, zero-crossing points are detected by using the dyadic wavelet trnsform based on the multiresolution analysis. The image signal is reconstructed with the iteration method of the projection onto convex sets. Convex sets used are obtained from the wavelet transform space and the other space which is constructed from zero-crossing points and the local extremal value between two zero-crossing points. In order to prove the proposed algorithm, simulation results are presented.
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藤原 至誠, 羽鳥 光俊
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p.
3-4
発行日: 1992/07/28
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A method of image restoration using pictures taken by several different cameras is proposed. Picture areas which are in focus are synthesized into one sharp image. This method is discussed and an edge detection algorithm which works well with this method is proposed.
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De Vriendt Johan
原稿種別: 本文
p.
5-6
発行日: 1992/07/28
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In this paper the accuracy of the second directional derivative edge detector is analyzed, and compared with the accuracy of the Laplacian edge detector. It is shown that the second directional derivative performs better than the Laplacian. The conditions under which errors are small compared to the standard deviation of the smoothing filter are obtained.
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小島 明, 岸上 順一
原稿種別: 本文
p.
7-8
発行日: 1992/07/28
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A novel motion detection for multiple objects is proposed. This method is based on the directional filtering in the spatiotemporal frequency domain by using Fast Fourier Transform. Experimental results applied to computer generated images are also described.
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的崎 健, 木本 早苗, 池口 徹
原稿種別: 本文
p.
9-10
発行日: 1992/07/28
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We recognize an object by geometical feature and its material. But, it is difficult to get the material informations from TV image. Then, we observe its 'gloss' , and analyze differences of 'gloss' with statistical value. We find difference in the distribution of satistical value, and assure existence of Gloss Map.
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小寺 宏曄, 金森 克洋, 麓 照夫
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p.
11-12
発行日: 1992/07/28
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A possibility of color image rendition from 2-color separation signals has been tried. In this paper, a spectral estimation algorithm from 2-color sigmals is discused in detail from a theoretical point of linear inverse problem. A various combinations of two color separation optics were simulated and the choice of color channels is evaluated in relation to the experimental results.
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佐伯 理宏, 神野 善行, 行武 剛, 飯田 博之
原稿種別: 本文
p.
13-14
発行日: 1992/07/28
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Chromakey Mixing is very popular effect in TV program production. However, if there is uneven signal level in background of input image, image quality of boundary part in mixed image is sacrificed. We propose new chromakey mixing method. In this method, chromakey parameters are optimized each blocks in field. And we had good results on computer simulation.
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黒野 剛弘
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p.
15-16
発行日: 1992/07/28
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This paper is presented for a technique to smooth the shape of intensity contours map by using technique of binary image frame integration. This method is useful to apply stereo images study. As the result, the stability of position data for range data requirement is obtained.
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小林 康志, 高橋 秀年, 中西 洋一郎, 畑中 義式
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p.
17-18
発行日: 1992/07/28
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This work is to develope a new method called selective measurement method (S.M.M.) in order to know how to select the special object which is predesignated by the computer. Temporal measurements of simple 3-D objects, trigomal, colum and trapezoid prism, are demonstrated in the S.M.M.
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作佐部 剛視, 木内 雄二
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p.
19-20
発行日: 1992/07/28
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This paper presents a method of personal identification using normalized definite line features of facial TV images and some experimental results. Using a mask matching together with a line comparing, good results are obtained.
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藤野 雄一, 小倉 武
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p.
21-22
発行日: 1992/07/28
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This paper proposes a new human head tracking method processed by a local spiral labeling with CAM (Content Addressable Memory). The local spiral labeling processing was proposed in order to improve one of shortcomings of a TV telephone. The labeling processing, however, needs huge processing time and memories in order to compute relations between label numbers. CAM has some functions to search and write the plural contents of the memory at the same time. It is fit for a real time labeling processing. This paper shows a labeling algorithm utilizing CAM and a example of human head tracking processing.
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佐々木 信之, 富田 龍一郎, 並川 巌, 松岡 泰助, 宮本 仁志
原稿種別: 本文
p.
23-24
発行日: 1992/07/28
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The data acuisition and analysis system for an animation display for a marathon runner is newly developed. In this paper, the method for the data acuisition and analysis of runner's motion on the graphic workstaion is described.
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並川 巌, 松岡 泰助, 宮本 仁志, 佐々木 信之
原稿種別: 本文
p.
25-26
発行日: 1992/07/28
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The animation display system for a marathon runner is newly developed. In this paper, the method for the animation display on the graphic worksation is described. About 1000 polygons are used for runner's legs and two runners are displayed simultaneously.
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八木 伸行, 福井 一夫, 榎並 和雅, 佐々木 信之, 金野 雄二, 斉藤 英貴
原稿種別: 本文
p.
27-28
発行日: 1992/07/28
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A programmable video signal processing system (HD-Picot) has been developed, which is composed of multiple homogeneous LSIed processors connected with programmable LSIed network, processes multiple Hi-Vision signals at video-rate, and carries out various image processing functions, such as convolution, geometrical transformation, noise reduction with software.
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佐々木 信之, 八木 伸行, 福井 一夫, 榎並 和雅
原稿種別: 本文
p.
29-30
発行日: 1992/07/28
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The effective use of a fast processor which works at HD rate is considered. In this study, when a fast processor is applyed to the low rate signal such as NTSC, it is shown that the multiple use of a fast processor using pipeline register with variable delay causes high efficiency.
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森本 明宏, 神野 善行, 行武 剛, 飯田 博之
原稿種別: 本文
p.
31-32
発行日: 1992/07/28
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This paper dicusses anti-aliasing filter for digital video processor. In this paper, we propose anti-aliasing filter for size reduction with rotation. We verified some effects on the computer simulation.
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明智 和幸, 小林 和正, 国分 秀樹
原稿種別: 本文
p.
33-34
発行日: 1992/07/28
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A high-speed FFT LSI for Hi-Vision has been developed, which performs real-time 64-point FFT at 80MHz data rates with 6 chips, and studied on its application to motion vector detection using a phase correlation algorithm. The simulation results show that the LSI is extremely useful for motion vector detection with small size.
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鈴木 康雄, 那須 潜思, 木幡 稔, 高木 相
原稿種別: 本文
p.
35-36
発行日: 1992/07/28
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In case of parallel operation using the optical adder/subtracter that we had proposed, the number of operation working in parallel is limited by the crosstalk between channels. So in this paper, two methods for reducing this crosstalk are studied and the experimental results about these methods are described.
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田中 覚, 柳沢 秀一, 松井 文雄, 嶋田 邦彦, 金丸 斉
原稿種別: 本文
p.
37-38
発行日: 1992/07/28
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We developed an optical memory disk using a newly synthesized organic dye for the recording layer. The disk shows the high sensitivity, and we are able to record and reproduce the NTSC composite video signals. The recording conditions are as follows. Peak recording power : 10mW, recording wavelength : 782nm, objective lens N.A. : 0.5,linear velocity : 11-18m/s.
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新井 清敬, 徳丸 春樹, 吉村 信一
原稿種別: 本文
p.
39-40
発行日: 1992/07/28
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A split type optical head employing a pair of relay lenses for the focus control is an effective way to shorten the access time; it has, however, a drawback that the write power varies in accordance with the displacement of the relay lens. We have tried to suppress the write power fluctuation by detecting the displacement using a lowpass filter which has the transfer function of the focus actuator. As a result the power fluctuation has been reduced considerably.
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小石 健二, 石田 隆, 田中 毅
原稿種別: 本文
p.
41-42
発行日: 1992/07/28
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High speed triple level laser diode servo and drive method for high transfer rate recording on the phase change optical disk is developed. Bias level and peak level of recording optical pulse until 50Mbps has been controlled with high accuracy (0.5%) and high speed settling time (3uS).
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井上 貴司, 北浦 坦, 松本 時和, 古賀 文明, 小川 伸幸, 田邊 昇
原稿種別: 本文
p.
43-44
発行日: 1992/07/28
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A new digital signal processing system for a video disc player which based on a feed forward technique has been developed. This paper describes the newly developed system.
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竹村 佳也, 井上 貴司, 古宮 成, 中嶋 健, 北浦 坦
原稿種別: 本文
p.
45-46
発行日: 1992/07/28
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This paper discusses a Hi-vision video disc system reproducing baseband video signals with 4 ch digital audio signals, which prolongs playback time up to 30 minutes per side. A high density storage method which utilizes a new signal processing technique and associated devices, with specifications, is reported.
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古宮 成, 竹村 佳也, 井上 貴司, 中嶋 健, 北浦 坦
原稿種別: 本文
p.
47-48
発行日: 1992/07/28
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This paper discusses a new signal processing method to realize an HDTV video disc system which enables long playback time. The new signal processing method with signal clamping, an AGC, and a time base corrector using a clock playback method by a liner prediction is presented.
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松井 勉
原稿種別: 本文
p.
49-50
発行日: 1992/07/28
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Hybrid disk system using magneto optical disk with ROM substrate was studied by developing two-laser optical head of different wave length (λ=670,780nm). Good eye pattern was obtained by recording and reproducing between phase-pit tracks.
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伊藤 博之, 三谷 直美, 吉田 利信, 永塚 伸太郎, 今村 力, 伊藤 雄司
原稿種別: 本文
p.
51-52
発行日: 1992/07/28
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Parallel MIG type video head using FeZrN system fine crystal magnetic film has been developed for Hi-8 VTR. Owing to high Bm and high permeability of this film, this head shows excellent electrical performance and can improve picture S/N ratio of Hi-8 VTR.
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近江 邦夫, 小貫 明男, 今田 彰子, 石井 太, 大田 俊彦, 小島 勝義, 篠崎 雅幸
原稿種別: 本文
p.
53-54
発行日: 1992/07/28
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FeAlSi laminated heads feature excellent high electrical performance because of their good magnetic characteristics and low rubbing noise, however, their reproducing output level decrease rapidly over 10MHz compared with ordinary ferrite heads. To improve this high-frequency loss, we have made laminated heads with ferrite holder and examined their performance in detail.
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前田 昭浩, 姫島 克行, 二宮 隆, 岡本 義輝
原稿種別: 本文
p.
55-56
発行日: 1992/07/28
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In order to improve the picture quality of S-VHS VTR, We have developed 11 heads system which includes laminated thin-film combination heads for SP and EP. And head width of these heads are eqaul to each track pitch. In this paper we have proved the effect of this system.
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J-C Lehureau, C. Maillot, F. Maurice
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p.
57-58
発行日: 1992/07/28
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中三川 順一, 小森 昇, 江尻 清美, 北原 淑行, 稲波 博男
原稿種別: 本文
p.
59-60
発行日: 1992/07/28
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Although a very thin magnetic layer had been believed to give high density recording characteristics, it was only very recently that such a thin layer turned available by a simultaneous double coating process. This paper reports the effect of the thickness of the very thin magnetic layer on some electromagnetic characteristics. In addition to the high output at higher frequency region, the thinner magnetic layer proved to give the narrower W_<50> as well as improved overwrite characteristics.
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鈴木 康平, 岡山 睦之, 越智 厚雄, 竹内 明弘
原稿種別: 本文
p.
61-62
発行日: 1992/07/28
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On recording FM signals with VTR, RF-emphasis is very effective to improve the SNR. In this paper, described from the viewpoint of moire, tearing, and the improvement of SNR, is an experimental study on lower side-band emphasis.
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長藤 延幸, 佐藤 啓行, 谷内田 尚司, 滝本 秀樹, 中村 勝, 猪原 尚之, 伊藤 雅俊
原稿種別: 本文
p.
63-64
発行日: 1992/07/28
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We have developed a video signal processor for UNIHI-VTR, with some new functions-Digital PLL, Noise Reducer, Auto Linearity Control, and Velocity Error Compensator. With these functions, this processor has achieved high quality picture and good stability in the playback mode, especially.
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佐々木 浩二, 中瀬 弘巳
原稿種別: 本文
p.
65-66
発行日: 1992/07/28
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We newly adopted Tracking Servo System for the Segment Recording VCR, and dveloped track-curve tracing servo (inhibiting false track for playback), and developed auto-tracking servo for a variable speed playback. As the result, falling achievment was made. 1. In interchangeable playback, highly stable RF envelope output. 2. Noise-less picture of a (*-1〜*2) times speed playback.
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西田 理史, 山口 修, 藤岡 総一郎, 岡本 博
原稿種別: 本文
p.
67-68
発行日: 1992/07/28
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Reel search system has been developed. This system composed of feedforward controller and feedback controller obtained high speed response and stability of the reel search.
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大塚 健, 安芸 慎一, 平塚 才知雄, 中瀬 弘巳
原稿種別: 本文
p.
69-70
発行日: 1992/07/28
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We newly adopted Auto-Tracking System for the Baseband HDTV Cassette Recorder (UNIHI), and developed the circuits for inhibiting false tracking and the circuits for memory control. Following achievement was made as the result. 1. Highly stable RF envelopes output in interchangeable playback. 2. Noiseless pictures in (*-1〜*2) times variable playback.
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加藤 大一郎, 笠井 春雄, 武藤 一利, 関口 卓司
原稿種別: 本文
p.
71-72
発行日: 1992/07/28
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This paper describes a new type of the head scanning mechanism for ultra thin tapes. By moving rotating heads in perpendicular to tape travel direction, helical tracks are generated on the tape. Since this mechanism gives no stress to the tapes in transversal direction, ultra thin tapes will be introduced in this transport system. An experiment using 20um track width heads has been carried out.
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中村 和幸, 守屋 正輝, 糸井 哲史
原稿種別: 本文
p.
73-74
発行日: 1992/07/28
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We made a comparison between ''Viterbi Decording for 1,7 code'' and Scrambled NRZ with actual tape transport system and cylinder assembly, and described that the former method is favorable for high-density recording system like HD-Digital VCR.
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山田 まさ子, 井戸 喜平, 井上 徹, 大西 健
原稿種別: 本文
p.
75-76
発行日: 1992/07/28
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A method of improvement of error propagations for 12-15 Modulation coding has been studied. We improved the error propagations of 12-15 Modulation coding, devising coding schemes. The bit-weight distributions of symbols are disclosed through computer simulation.
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石田 慎二, 中津 悦人, 小林 正明
原稿種別: 本文
p.
77-78
発行日: 1992/07/28
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A new quadrature amplitude modulation (QAM) recording method under optimum bias condition developed for channel coding of digital VCRs is reported here. By employing an improved coded 16QAM method, a recording density as high as 0.83μm^2/bit is accomplished by using a metal evaporated video tape.
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太田 晴夫, 小林 正明
原稿種別: 本文
p.
79-80
発行日: 1992/07/28
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A comparison of some typical recording codes for integrating detection in digital video recording is reported. The comparison is conducted by a newly developed method which is more efficient than conventional methods. The conclusion is that (1,7) RLL code is better than scrambled NRZ when the normalized linear density is greater than 2.45.
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岡本 好弘, 大沢 寿, 瀧川 喜義, 栗原 義武, 小野 和雄
原稿種別: 本文
p.
81-82
発行日: 1992/07/28
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EPR-IV system is known as the partial response (PR) system which shows an excellent performance. PR (1,1,0,-1,-1) system is proposed here and the performance is compared with that for EPR-IV system. It is shown that at a bit-error rate of 10^<-4> PR (1,1,0,-1,-1) system saves SNR by about 1.9dB compared with EPR-IV system.
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浦川 禎之
原稿種別: 本文
p.
83-84
発行日: 1992/07/28
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Several types of PRML signal detection method has been applied for high density digital magnetic recoding. In this paper, error rates of five types of PRML are computer simulated and hardware experimented. As the results, we found that each PRML has its optimum wavelength for minimum error rate.
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依田 信治, 下田 乾二, 荒川 修, 武田 均
原稿種別: 本文
p.
85-86
発行日: 1992/07/28
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This paper describes a new compression system made for Digital VCR. We studied hardwear quantity of intrafield and intraframe system for personal use, and then we desided each parameter of the compression system by a computer simulation. The system can compress data by intrafield compression from 177Mbps to 25Mbps with 13Mbits memories. We could get good results for personal use VCR, especially for camera recorders.
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近藤 和弘, 権田 亜紀子
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p.
87-88
発行日: 1992/07/28
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We propose a video coding scheme which codes HDTV signal complying with the BTA S-001 standard to a rate of under 90 Mbps. The coder features a combination of quincunx subsampling, DCT, and fixed/variable length hybrid entropy code. Preliminary tests of subjective image quality show satisfactory results.
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加藤 隆, 栗岡 辰弥, 久下 哲郎, 奥田 治雄
原稿種別: 本文
p.
89-90
発行日: 1992/07/28
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会議録・要旨集
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The degradation caused by the iteration of picture coding has been studied. Two coding methods using intra-field DCT, suitable for Hi-Vision digital VTR, were examined. One was based on JPEG and the other was the modified JPEG scheme using adaptive quantizer. As a result of the simulation, S/N and data length after second generation were almost the same as those of first generation in both methods, however, higher S/N has been obtained in the case of modified JPEG scheme.
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岩木 哲男, 田中 稔久, 山田 栄二, 奥田 徹, 笹田 泰三
原稿種別: 本文
p.
91-92
発行日: 1992/07/28
公開日: 2017/10/02
会議録・要旨集
フリー
A structure of high speed Reed-Solomon decoder developed for the digital VCR is described. The maximum data-rate of 16Mbyte/sec is realized with 4-stage pipelines and the superscalar processor on Galois field.
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高倉 英一, 山口 孝好, 安江 秀隆, 杉野 道幸, 片山 浩誠
原稿種別: 本文
p.
93-94
発行日: 1992/07/28
公開日: 2017/10/02
会議録・要旨集
フリー
We have studied on the reproduced picture quality in the variable speed mode of the digital VCR by using a bit rate reduction with a DCT. This paper describes some results obtained by a computer simulation and a data processing method to realize an acceptable reproduced picture quality in the high speed playback.
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