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Featured researches published by Kozo Ezawa.


ieee global conference on consumer electronics | 2014

Depth from Defocus applied to Auto Focus

Shunsuke Yasugi; Khang Nguyen; Kozo Ezawa; Takashi Kawamura

Depth from Defocus (DFD) is known as the technology which is able to estimate depth in the scene by a monocular camera without any additive devices. Using this advantage of DFD, we improved the speed of Auto Focus (AF). To apply DFD to AF, it is necessary to capture 2 images that have a small amount of “difference in focal positions” (we call DiFP). In this paper, we show the performance of the depth estimation when the DiFP is changed, and verify that Low Pass Filter is a good solution to get robust depth.


Archive | 1995

Automatic disk change apparatus and disk tray for the apparatus

Makoto Fujita; Yasuhisa Fukushima; Goro Naoki; Yoshio Umeda; Kozo Ezawa


Archive | 1998

Disk loading device and disk cartridge

Shinichi Maeda; Akira Kurozuka; Yasuhisa Fukushima; Kozo Ezawa; Makoto Fujita; Yoshiaki Nakatsuka; Yoshiyuki Hashimoto


Archive | 2006

CLOTHING FOLDING MACHINE

Yoshito Saji; Teruyuki Takizawa; Kozo Ezawa; Masanari Mohri


Archive | 1999

Disk storage magazine and recording/reproducing apparatus

Kozo Ezawa; Teruyuki Takizawa; Shigeto Ueno


Archive | 2002

Turntable for disk storage medium and disk drive including the turntable

Kozo Ezawa; Masanao Wakikawa; Kazuo Teramae; Terumi Tatsumi


Archive | 2012

Movement control device, movement control method, and movement control circuit

Toshio Inaji; 稲治 利夫; Takeshi Shimamoto; 武史 島本; Kozo Ezawa; 江澤 弘造


Archive | 2010

IMAGE CAPTURING APPARATUS, METHOD, PROGRAM, AND CIRCUIT

Khang Nguyen; Yusuke Monobe; Kozo Ezawa; Masahiro Inata; Toshio Inaji


Archive | 2006

Power transmission member for head transfer mechanism, and disk device with the head transfer mechanism

Kozo Ezawa; Kisaburo Kurobe; Tomohiro Sasao


Archive | 2004

Optical disc drive having a traverse holder that is rotatable around an axis that is mutually different from the axis of a traverse base

Takeo Santo; Kozo Ezawa; Masahiro Inata; Yoshito Saji

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