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Yuji Kiuchi
1997 Volume 51 Issue 2 Pages
138-143
Published: February 20, 1997
Released on J-STAGE: March 14, 2011
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Highly Sensitive Camera Tubes
Kenkichi Tanioka
1997 Volume 51 Issue 2 Pages
144-146
Published: February 20, 1997
Released on J-STAGE: March 14, 2011
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Takao Kuroda
1997 Volume 51 Issue 2 Pages
147-149
Published: February 20, 1997
Released on J-STAGE: August 17, 2011
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Yoshitsugu Yanagi, Hiroshi Noguchi
1997 Volume 51 Issue 2 Pages
150-155
Published: February 20, 1997
Released on J-STAGE: March 14, 2011
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Nobukazu Teranishi, Naoki Oda
1997 Volume 51 Issue 2 Pages
156-161
Published: February 20, 1997
Released on J-STAGE: March 14, 2011
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Katsuyuki Kinoshita, Kazuaki Okumura
1997 Volume 51 Issue 2 Pages
162-167
Published: February 20, 1997
Released on J-STAGE: August 17, 2011
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Nuclear Power Station
Motohico Kimura
1997 Volume 51 Issue 2 Pages
168-173
Published: February 20, 1997
Released on J-STAGE: March 14, 2011
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Communication Interface
Seiichiro Hangai
1997 Volume 51 Issue 2 Pages
174-182
Published: February 20, 1997
Released on J-STAGE: March 14, 2011
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Toru Wakahara
1997 Volume 51 Issue 2 Pages
183-186
Published: February 20, 1997
Released on J-STAGE: March 14, 2011
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Tomohisa Ishida, Tadao Isogai, Toshikazu Yoneyama, Masahiro Juen, Tsun ...
1997 Volume 51 Issue 2 Pages
211-218
Published: February 20, 1997
Released on J-STAGE: March 14, 2011
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This paper introduces a new device architecture suitable for obtaining a large format, high resolution, and high performance image sensor. Each pixel in the sensor comprises a buried photodiode and a junction field effect transistor, for signal charge generation and amplificaion, respectively. A 1.6 M pixel image sensor was constructed with source follower amplifiers and correlated double sampling circuits for signal readout. The image sensor exhibited high-sensitivity, low-noise, and high-protection capabilities for blooming and smear. The fundamental characteristics-sensitivity of 2 V/lx·s, dynamic range of 75 dB, noise equivalent exposure of 9.2×10
-5lx·s, and a dark FPN level of -66 dB were achieved.
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Nobuo Nakamura, Natsue Sakaguchi, Yoshitaka Egawa, Shinji Ohsawa, Yuki ...
1997 Volume 51 Issue 2 Pages
219-227
Published: February 20, 1997
Released on J-STAGE: March 14, 2011
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Three kinds of operations for a STACK-CCD of a 2/3-in 2 million-pixel high-definition-television (HDTV) imager to expand its dynamic range and a S/N ratio are proposed and evaluated. A high-light signal suppression operation, knee control operation, can expand the dynamic range up to 90 dB without a fixed-pattern noise for the STACK-CCD imager. A small signal reset (SSR) operation reduces the random noise generated in the storage diode (SD) from 30 electrons to 26 electrons. The fixed-pattern noise generated in the SD is also suppressed by up to 10 electrons by the accumulation operation and a surrounding channel stop region. Using these operations, the dynamic range of 90 dB, the S/N ratio of 54 dB can be obtained for the 2/3-in 2 million-pixel STACK-CCD imager with the incomplete-transfer type storage-diode.
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Atsushi Morimura, Takeo Azuma, Kenya Uornori
1997 Volume 51 Issue 2 Pages
228-232
Published: February 20, 1997
Released on J-STAGE: March 14, 2011
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We have developed a wide-dynamic-range image processing technology that compresses video signal level while preserving image contrast. Applying this technology to wide-dynamic-range images improves the contrast of the images which are displayed on a conventional display. In this paper we discuss the S/N ratio of wide-dynamic-range images which are synthesized from two different exposure-time images. In order to display wide-dynamic-range images on conventional displays with high contrast, we propose video signal expression which is not in proportion to luminance. This new expression of video signal is obtained from the divided region and edge base histogram equalization process.
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Kazuhiro Sato
1997 Volume 51 Issue 2 Pages
235-240
Published: February 20, 1997
Released on J-STAGE: March 14, 2011
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Solid-state television cameras have a major problem in that synchronous noises appear in their video output. The authors have found that these noises are produced by the horizontal frequency pulses in a synchronising signal generating circuit. This paper presents a new type of synchronising signal generater which reduces noise by using a shift register as the horizontal counter.
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Kazuhiko Ueda, Yuichi Takagi, Hajime Ohke, Michio Koyama, Yukinobu Wat ...
1997 Volume 51 Issue 2 Pages
241-247
Published: February 20, 1997
Released on J-STAGE: March 14, 2011
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The CCD imaging unit described in this paper consists of a one-eye case, a CCD imaging chip, some peripheral circuits die-bonded with a ceramic base, and an optical lens attached to the CCD imaging chip. To provide digital CCD raw data outputs, the imaging unit requires only a power supply unit and some input synchronizing signals. The imaging unit has many possible uses because it is extremely small and thin (17.5×17.5×9.8 mm) and does not require any specific optical or electrical adjustment. It can be used in such things as personal-computers, personal digital assistants.
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Masahiko Tomikawa, Hidefumi Okada, Akio Kobayashi, Hirotsugu Murashima
1997 Volume 51 Issue 2 Pages
248-255
Published: February 20, 1997
Released on J-STAGE: March 14, 2011
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A High-speed image recording system with an effective slow-motion play back function has been developed. Although high-speed recording devices have been in use professionally, there have been no such products for consumer use. Our system can capture images at quadruple the speed of a normal consumer VCR. Images taken with our camera are quarter the size of ones taken with a standard camera. The camera connects four high speed captured pictures to form one standard picture and output it in a form that is usable by any normal consumer VCR. We used a normal consumer digital VCR to play back the high-speed images.
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Ryohei Miyagawa, Takeo Kanade
1997 Volume 51 Issue 2 Pages
256-262
Published: February 20, 1997
Released on J-STAGE: March 14, 2011
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Temporal computation in an image sensor by charge-domain processing is a very interesting concept. We have realized this concept as a multi-integration time photoreceptor. The sensor can select one of the multiple integration times according to the incident light intensity. It then has a dynamic range 128 times as large that of a single-integration time. The sensor has two outputs i. e., a photo-intensity output and a integration-time output. The two outputs have a wide-range photo-conversion characteristics.
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Takeyasu Sakai, Takashi Matsumoto
1997 Volume 51 Issue 2 Pages
263-269
Published: February 20, 1997
Released on J-STAGE: August 17, 2011
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A parallel architecture is proposed for fast spatial filtering operations using floating gate transistors with differential inputs and feedback. Arbitrary signed convolutions can be performed in a completely parallel manner with the proposed architecture. Only one terminal is required for the feedback which is capable of suppressing the distortions caused by active elements. This architecture is also suitable for other operations including DFT/DCT. In particular, if 2D-DCT is implemented with this architecture together with an array of photosensors, an image compression sensor can be developed.
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Kiyoharu Aizawa, Yuichirou Egi, Takayuki Hamamoto, Mitsutoshi Hatori, ...
1997 Volume 51 Issue 2 Pages
270-273
Published: February 20, 1997
Released on J-STAGE: March 14, 2011
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Takayuki Hamamoto, Kiyoharu Aizawa, Mitsutoshi Hatori
1997 Volume 51 Issue 2 Pages
274-276
Published: February 20, 1997
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Takayuki Hamamoto, Kiyoharu Aizawa, Mitsutoshi Hatori
1997 Volume 51 Issue 2 Pages
277-279
Published: February 20, 1997
Released on J-STAGE: March 14, 2011
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Shogo Tokai, Jun-ichiro Toriwaki, Ken-ichi Anjyo
1997 Volume 51 Issue 2 Pages
280-286
Published: February 20, 1997
Released on J-STAGE: August 17, 2011
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