All issues
Predecessor
21.21
Displaying 1-11 of 11 articles from this issue
- |<
- <
- 1
- >
- >|
-
Article type: Cover
Pages Cover1-
Published: March 14, 1997
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (15K) -
Article type: Index
Pages Toc1-
Published: March 14, 1997
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (58K) -
Yoichi Mizutani, Toshiharu Kobayashi, Akibiro Kikuchi, Hirohumi Murase ...Article type: Article
Pages 1-5
Published: March 14, 1997
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWe have developed a digital still camera (DSF-F1) using 330-K pixels progressive scan CCD image sensor. In this System, the main features are following that one is the primary color camera signal process making good use of progressive scan CCD, the other is the memory controller with many functions, for example, real time monitoring function and JPEG I/F etc.View full abstractDownload PDF (477K) -
Tetsuya Kuno, Hiroaki Sugiura, Yoshinori Kakuta, Narihiro Matoba, Shos ...Article type: Article
Pages 7-12
Published: March 14, 1997
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSToday, people can easily transmit visual images with development of an information-oriented society, especially as the Internet spreads worldwide. Digital Still Cameras (DSC) have attracted a great deal of public attention as input tools for images. However, conventional DSC are only an extension of compact cameras using 35 mm film, and are not compact enough for easy portability to take photos, anytime and everywhere. For the purpose of offering a high portable DSC, we have developed cardsized digital still cameras (CDSC). It is a portable size (62×107×8.5 (12.3) mm) and has flash memory which storages 15 pictures. We have also developed an original software for CDSC which has new signal processing to offer high quality pictures.View full abstractDownload PDF (611K) -
Masuhiro Shouji, Yukio Ichikawa, Tomoyosi Koizumi, Hiroki Katono, Take ...Article type: Article
Pages 13-18
Published: March 14, 1997
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSFor downsizing of video camera optics, we developed an unprecedented optical filter (UCFD) having the combinatorial functions as luminous efficiency filter (LEF) and optical low pass filter (OLPF), which was made of synthetic resin. This filter had the trapezoidal grating cross section on the surface of the LEF. The light transmittance and the optical low pass function of the UCFD with 1 mm thickness were same as those of the device composed of quartz OLPF and the glass LEF, which had more than 3 mm thickness. In this presentation, the characteristics and the production process of the UCFD are discussed.View full abstractDownload PDF (572K) -
Makoto YOSHIDA, Keijiro UMEHARA, Masaaki SASAKI, Yoshiaki NISHIMURA, S ...Article type: Article
Pages 19-24
Published: March 14, 1997
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSA compact, low-cost, low-power one-chip camera is one of key devices of the new multimedia products. This paper presents a compressed digital output CMOS image sensor for a one-chip digital camera. The implemented chip contains a 128×128 pixel sensor, 8-channel parallel read-out circuits, an analog 2-dimensional discrete cosine transform (2-D DCT) processor and an adaptive analog-to-digital converter/quantizer. The implemented analog 2-D DCT processor LSI is actually used for image encoding test using standard images. The maximum PSNR of the reconstructed image is 34 [dB].View full abstractDownload PDF (916K) -
Keiji Mabuchi, Eiji Oba, Yoshinori Iida, Nobuo Nakamura, Hiroki MiuraArticle type: Article
Pages 25-30
Published: March 14, 1997
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSCell circuit and pattern layout for CMOS image sensor was studied in view of minimizing cell area. Capacitor address cell and 1 transistor 1 capacitor cell can be designed other than conventional transistor address cell. We estimated theoretical minimum cell size for each types of cell and applied this result to realize 5.6μm cell by 0.6μm design rule. Then 330k pixel VGA format CMOS image sensor could be fabricated in 1/4 inch optical format and good reproduced image was obtained with 700mV of saturation level and 1mVp-p of fixed pattern noise.View full abstractDownload PDF (900K) -
S. Kawai, K. Hatano, S. Suwazono, F. Futamura, D. Shohji, S. Katoh, Y. ...Article type: Article
Pages 31-36
Published: March 14, 1997
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSA IM-pixel progressive-scan interline-transfer CCD (IT-CCD) image sensor has been developed. The number of effective pixels is 1024 (H)×1024 (V) and its unit-pixel size is 10μm square. The device has two H-CCDs, located at the upper and lower of the image area. In the device, progressive scanning provides a 1024×1024 resolution image at 30 frame/sec. The device also can be operated in a 512×512 progressive scan at 60 frame/sec by combining the charges in each of two by two pixels. Furthermore, the device can perform a 1024×1024 interlace scan at 60 field/sec. The two H-CCD structure makes it possible to obtain a upside-down image without image processing. The variety of operation modes are attractive for many kinds of industrial, medical and scientific applications.View full abstractDownload PDF (654K) -
Shigeru Hosokai, Tetsuo Nomoto, Toshihiko Isokawa, Ryouji Hyuga, Shini ...Article type: Article
Pages 37-42
Published: March 14, 1997
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSA 4M-pixel Charge Modulation Device (CMD) image sensor with pixel size of 7.5×7.5μm^2 has been developed. The sensor has three readout modes that are a full, a skip and a block modes. A 4M-Pixel image is obtained in the full modes, while an arbitrary window-of-interest can be read out in the block modes. The skip mode reads every 4th pixel in both horizantal and vertical directions. The frame rate can be raised in the skip and the block modes. The sensor also has a capability of lowering the dark current generation during the integration time.View full abstractDownload PDF (785K) -
M. Furumiya, S. Suwazono, M. Morimoto, Y. Nakashiba, Y. Kawakami, T. N ...Article type: Article
Pages 43-48
Published: March 14, 1997
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSA 2/3 inch 1.3M pixel progressive scan interline transfer CCD (IT-CCD) image sensor has been developed for video and digital still cameras. A square pixel of 6.7 μm×6.7μm and active pixels of 1308 (H) ×1032 (V) are adopted. This sensor can be operated up to 30 frame/s with progressive scan at 49 MHz operation in horizontal CCD (H-CCD). An 8-phase driving in vertical CCD (V-CCD) enables a variety of operation, such as a 1050 line progressive scan, a 1049 line interlaced scan and a 525 line interlaced scan.View full abstractDownload PDF (1106K) -
Article type: Appendix
Pages App1-
Published: March 14, 1997
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (77K)
- |<
- <
- 1
- >
- >|