Kimihiro Nishio

Tsuyama National College of Technology, Tuyama, Okayama, Japan

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Publications (7)0.7 Total impact

  • Kimihiro Nishio, Takuya Yamamoto
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    ABSTRACT: We propose an analog-digital circuit for detecting the movement of an object. The proposed unit circuit is a simple structure since the digital part of the circuit is constructed with only one NOT circuit and one NOR circuit. The measured results on a constructed test circuit showed that the proposed circuit can output the pulsed voltage (motion signal) when an object moves on the circuit. We proposed and constructed the system in this study in order to track target. Since the array in the proposed circuits was introduced at the first stage of the system, the circuit for tracking the target became a simple structure. It was clear from the measured results of the test system that it can track and capture a target in the center of the input section.
    Artificial Life and Robotics 06/2011; 16(1):57-60.
  • Kimihiro Nishio, Taiki Yasuda
    Neural Information Processing - 18th International Conference, ICONIP 2011, Shanghai, China, November 13-17, 2011, Proceedings, Part III; 01/2011
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    ABSTRACT: We have proposed an analog motion detection circuit based on a biological vision system. A charge coupled device (CCD) camera was used as the input in order to obtain an input image. By using the CCD camera, it is possible to detect the movement of an object as a high-resolution image. Because the unit motion detection circuit is constructed with eight metal oxide semiconductor (MOS) transistors and one capacitor, the structure of the unit circuit is simple. The test circuit was constructed on a circuit board using discrete MOS transistors. The results from the test circuit showed that it can detect the direction of motion. The test circuit was connected to a microcomputer in a mobile robot. It was clear from the results that the motion detection circuit can control a mobile robot. Key wordsAnalog circuit–Motion detection–Image processing–Vision chip
    Artificial Life and Robotics 01/2011; 16(1):61-64.
  • Kimihiro Nishio, Takanori Tomibe
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    ABSTRACT: In this study, we propose an analog-digital circuit for sound localization based on the biological auditory system. The proposed circuit is constructed with a delay line and a comparator. The delay line was constructed with the simple analog circuits of the current mode. The NOR circuit was used as the comparator. The current mode delay line was evaluated by a simulation program with integrated circuit emphasis (SPICE). The test circuit was fabricated by discrete metal oxide semiconductor (MOS) transistors on the breadboard. The result with SPICE and the measured results of the test circuit showed that the time for transmitting a signal on the current mode delay line becomes shorter when the sound of the target is greater. When the sound of the target was small, the time taken to transmit the signal became longer. The proposed circuit for sound localization was evaluated by SPICE. The result with SPICE showed that the circuit can generate a signal to detect the position of the sound of the target. We can realize a new target-tracking system by applying this novel circuit based on the biological auditory system to a previously proposed tracking system based on the biological vision system. Key wordsSound localization-Auditory system-Tracking system-Analog circuit-Digital circuit
    Artificial Life and Robotics 12/2010; 15(3):347-350.
  • Kimihiro Nishio, Naoya Ihara, Takumi Yamasaki
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    ABSTRACT: We proposed in this study the circuit and network for detecting the approaching object based on the visual systems of the pigeon and the locust. The proposed circuit and network became simple structure. The circuit and network were evaluated by the simulation program with integrated circuit emphasis (SPICE). The circuit based on the visual system of the pigeon output the signal which is proportional to the time to collision. The circuit and network based on the locust vision system generated the signal for avoiding the collision of the object. It was clarified from the simulation results that the proposed simple circuit and network can detect the time to collision, the size and the velocity of the approaching object.
    11th International Conference on Control, Automation, Robotics and Vision, ICARCV 2010, Singapore, 7-10 December 2010, Proceedings; 01/2010
  • Kimihiro Nishio, Taiki Yasuda, Takanori Tomibe
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    ABSTRACT: In this study, we proposed a basic system using the simple analog circuit for motion detection based on the biological vision system and the mobile robot. The test circuit was fabricated on the breadboard by using discrete metal oxide semiconductor (MOS) transistors. The simulation results and the measured results of the test circuit showed that the motion detection circuit can output the motion signal. The test circuit was connected with the microcomputer introduced in the mobile robot, and the motion signal was input to the microcomputer. It was clarified from the measured results that the motion detection circuit can control the mobile robot.
    01/2009;
  • Kimihiro Nishio
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    ABSTRACT: Novel analog edge detection circuits were proposed and fabricated based on the vertebrate retina. The proposed unit circuit is constructed with one photodiode and about eight n-channel metal oxide semiconductor (MOS) transistors. The results with the simulation program with integrated circuit emphasis (SPICE) showed that the one- and two-dimensional array of proposed circuits can detect edge positions with a dynamic range of about 5 decades. The test circuit was fabricated on the breadboard using discrete MOS transistors. The measured results of the test circuit showed that the proposed circuit can detect edge positions. Under the condition that the photodiode used as the input part of the proposed unit circuit is 4,275 µm2, the fill factor of the novel circuit is expected to be about 51.7%. The advanced integrated circuit for edge detection which is characterized by a high fill factor, wide dynamic range and low power consumption can be realized by applying the proposed circuit. Keywordsedge detection-analog circuit-retina-real time image processing-vision chip
    Optical Review 01/2009; 16(5):521-525. · 0.70 Impact Factor