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2020 – today
- 2021
[j40]Zhenwen Cai
, Feifei Lee, Chunyan Hu, Koji Kotani, Qiu Chen:
NAEM: Noisy Attention Exploration Module for Deep Reinforcement Learning. IEEE Access 9: 154600-154611 (2021)- 2020
- [j39]Shuai Yang, Feifei Lee, Ran Miao, Jiawei Cai, Lu Chen, Wei Yao, Koji Kotani, Qiu Chen:
RS-CapsNet: An Advanced Capsule Network. IEEE Access 8: 85007-85018 (2020) - [j38]Jiawei Cai, Feifei Lee, Shuai Yang, Chaowei Lin, Hanqing Chen, Koji Kotani, Qiu Chen:
Pedestrian as Points: An Improved Anchor-Free Method for Center-Based Pedestrian Detection. IEEE Access 8: 179666-179677 (2020) - [j37]Ren Usami, Takao Komiyama, Yasunori Chonan, Hiroyuki Yamaguchi, Koji Kotani:
Photovoltaic-assisted self-Vth-cancellation CMOS rectifier for synergistic RF energy harvesting. IEICE Electron. Express 17(13): 20200186 (2020) - [j36]Lin Xie, Feifei Lee, Li Liu, Koji Kotani, Qiu Chen:
Scene recognition: A comprehensive survey. Pattern Recognit. 102: 107205 (2020)
2010 – 2019
- 2019
- [c44]Koji Kotani, Shota Inoue, Takao Komiyama, Yasunori Chonan, Hiroyuki Yamaguchi:
RF Rectifier Absolute Figure of Merit Based on Relative Comparison with Reference Rectifier. ISCAS 2019: 1-4 - 2018
- [c43]Ren Usami, Takao Komiyama, Yasunori Chonan, Hiroyuki Yamaguchi, Koji Kotani:
Photovoltaic-Assisted Self-Vth-Cancellation CMOS RF Rectifier for Wide Power Range Operation. A-SSCC 2018: 115-118 - 2017
- [c42]Qiu Chen, Feifei Lee, Koji Kotani:
Improved multiple histogram-based features for robust face recognition. CISP-BMEI 2017: 1-6 - [c41]Feifei Lee, Junjie Zhao, Koji Kotani, Qiu Chen:
Video copy detection using histogram based spatio-temporal features. CISP-BMEI 2017: 1-5 - 2016
- [c40]Qiu Chen, Koji Kotani, Feifei Lee:
Face Recognition Using Multiple Histogram Features in Spatial and Frequency Domains. SITIS 2016: 204-208 - 2015
- [j35]Koji Kotani:
Efficiency Improvement in Photovoltaic-Assisted CMOS Rectifier with Symmetric and Voltage-Boost PV-Cells. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 98-A(2): 500-507 (2015) - 2014
- [j34]Koji Kotani, Takumi Bando, Yuki Sasaki:
A Photovoltaic-Assisted CMOS Rectifier for Synergistic Energy Harvesting from Ambient Radio Waves. IEICE Trans. Electron. 97-C(4): 245-252 (2014) - [c39]Qiu Chen, Koji Kotani, Feifei Lee, Tadahiro Ohmi:
Face Recognition Using Markov Stationary Features and Vector Quantization Histogram. CSE 2014: 1934-1938 - 2013
- [c38]Koji Kotani:
Highly efficient CMOS rectifier assisted by symmetric and voltage-boost PV-cell structures for synergistic ambient energy harvesting. CICC 2013: 1-4 - 2011
- [c37]Qiu Chen, Koji Kotani, Feifei Lee, Tadahiro Ohmi:
An Improved Face Recognition Algorithm Using Quantized DCT Coefficients. SITIS 2011: 329-333 - [c36]Feifei Lee, Koji Kotani, Qiu Chen, Tadahiro Ohmi:
A Robust Face Recognition Algorithm Using Markov Stationary Features and Adjacent Pixel Intensity Difference Quantization Histogram. SITIS 2011: 334-339 - 2010
- [j33]Takashi Ito, Xiaoli Zhu, Shin-Ichiro Kuroki, Koji Kotani:
Highly Reliable and Drivability-Enhanced MOS Transistors with Rounded Nanograting Channels. IEICE Trans. Electron. 93-C(11): 1638-1644 (2010) - [j32]Qiu Chen, Koji Kotani, Feifei Lee, Tadahiro Ohmi:
A Codebook Design Method for Robust VQ-Based Face Recognition Algorithm. J. Softw. Eng. Appl. 3(2): 119-124 (2010) - [c35]Hiroaki Arai, Naoto Miyamoto, Koji Kotani, Hisanori Fujisawa, Takashi Ito:
A WiMAX turbo decoder with tailbiting BIP architecture. ASP-DAC 2010: 371-372 - [c34]Qiu Chen, Koji Kotani, Feifei Lee, Tadahiro Ohmi:
Feature facial image recognition using VQ histogram in the DCT domain. ICDIP 2010: 75460J - [c33]Feifei Lee, Koji Kotani, Qiu Chen, Tadahiro Ohmi:
Fast and efficient search for MPEG-4 video using adjacent pixel intensity difference quantization histogram feature. ICDIP 2010: 75460K
2000 – 2009
- 2009
- [j31]Koji Kotani, Takashi Ito:
Self-Vth-Cancellation High-Efficiency CMOS Rectifier Circuit for UHF RFIDs. IEICE Trans. Electron. 92-C(1): 153-160 (2009) - [j30]Koji Kotani, Atsushi Sasaki, Takashi Ito:
High-Efficiency Differential-Drive CMOS Rectifier for UHF RFIDs. IEEE J. Solid State Circuits 44(11): 3011-3018 (2009) - 2008
- [j29]Feifei Lee, Koji Kotani, Qiu Chen, Tadahiro Ohmi:
Shot change detection using a novel histogram feature in compressed video. IEICE Electron. Express 5(14): 503-509 (2008) - [c32]Qiu Chen, Koji Kotani, Feifei Lee, Tadahiro Ohmi:
Scale-Invariant Feature Extraction by VQ-Based Local Image Descriptor. CIMCA/IAWTIC/ISE 2008: 1217-1222 - [c31]Feifei Lee, Koji Kotani, Qiu Chen, Tadahiro Ohmi:
Fast Search Algorithm for Short Video Clips from Large Video Database Using a Novel Histogram Feature. CIMCA/IAWTIC/ISE 2008: 1223-1227 - [c30]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
Fast search method for vector quantization by simultaneously using two subvectors. ICME 2008: 729-732 - 2007
- [j28]Xiaoli Zhu, Shin-Ichiro Kuroki, Koji Kotani, Hideharu Shido, Masatoshi Fukuda, Yasuyoshi Mishima, Takashi Ito:
Characteristics of Nano-Grating N-Channel MOSFETs for Improved Current Drivability. IEICE Trans. Electron. 90-C(9): 1830-1836 (2007) - [c29]Roel Pantonial, Md. Ashfaquzzaman Khan, Naoto Miyamoto, Koji Kotani, Shigetoshi Sugawa, Tadahiro Ohmi:
Improving Execution Speed of FPGA using Dynamically Reconfigurable Technique. ASP-DAC 2007: 108-109 - [c28]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
Improved fast encoding method of vector quantization based on dynamic element reordering for codewords. ECCTD 2007: 404-407 - [c27]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
Fast Encoding Method of Vector Quantization Based on Optimal Subvector Partition. DSP 2007: 415-418 - 2006
- [j27]Takahiro Nakayama, Masahiro Konda, Koji Takeuchi, Koji Kotani, Tadahiro Ohmi:
Still Image Compression with Mean-Residual Domain Adaptive Resolution Vector Quantization Technique. Intell. Autom. Soft Comput. 12(3): 231-243 (2006) - [j26]Takahiro Nakayama, Koji Takeuchi, Masahiro Konda, Koji Kotani, Tadahiro Ohmi:
Image Scrambling Method for Information Distribution Via Vector Quantization Codebook Processing. Intell. Autom. Soft Comput. 12(3): 245-256 (2006) - [j25]Koji Kotani, Qiu Chen, Feifei Lee, Tadahiro Ohmi:
Region-Division Vector Quantization Histogram Method for Human Face Recognition. Intell. Autom. Soft Comput. 12(3): 257-268 (2006) - [j24]Zhibin Pan, Tadahiro Ohmi, Koji Kotani:
An Efficient Method of Constructing L1-Type Norm Feature to Estimate Euclidean Distance for Fast Vector Quantization. Intell. Autom. Soft Comput. 12(3): 269-274 (2006) - [j23]Zhibin Pan, Tadahiro Ohmi, Koji Kotani:
Post-Processing Method for Vector Quantization to Achieve a Higher PSNR and Nearly Constant Bit Rate. Intell. Autom. Soft Comput. 12(3): 275-281 (2006) - [j22]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
Comments on: Novel full-search schemes for speeding up image coding using vector quantization. J. Vis. Commun. Image Represent. 17(3): 573-580 (2006) - [j21]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
Improved the-law-of-cosines-based fast search method for vector quantization by updating angular information. Pattern Recognit. Lett. 27(6): 688-695 (2006) - [c26]Zhibin Pan, Tadahiro Ohmi, Koji Kotani:
Constructing Better Partial Sums Based on Energy-Maximum Criterion for Fast Encoding of VQ. APCCAS 2006: 1563-1566 - [c25]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
Fast encoding method for vector quantization based on sorting elements of codewords to adaptively constructing subvectors. ISCAS 2006 - 2005
- [j20]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
Performance Comparison between Equal-Average Equal-Variance Equal-Norm Nearest Neighbor Search (EEENNS) Method and Improved Equal-Average Equal-Variance Nearest Neighbor Search (IEENNS) Method for Fast Encoding of Vector Quantization. IEICE Trans. Inf. Syst. 88-D(9): 2218-2222 (2005) - [j19]Naoto Miyamoto, Koji Kotani, Tadahiro Ohmi:
A 3.7×3.7mm2 310.9mW 105.2msec 512×512-Pixel Phase-Only Correlation Processor. J. Robotics Mechatronics 17(4): 395-400 (2005) - [j18]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
A generalized multiple projection axes method for fast encoding of vector quantization. Pattern Recognit. Lett. 26(9): 1316-1326 (2005) - [j17]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
Recursive computation method for fast encoding of vector quantization based on 2-pixel-merging sum pyramid data structure. Pattern Recognit. Lett. 26(11): 1684-1690 (2005) - [j16]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
Fast encoding method for vector quantization using modified L2-norm pyramid. IEEE Signal Process. Lett. 12(9): 609-612 (2005) - [c24]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
Fast encoding method for image vector quantization by using partial sum concept in Walsh domain. EUSIPCO 2005: 1-4 - [c23]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
Fast Encoding Method for Vector Quantization Based on a New Mixed Pyramid Data Structure. ICASSP (2) 2005: 397-400 - [c22]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
Enhanced fast encoding method for vector quantization by finding an optimally-ordered Walsh transform kernel. ICIP (1) 2005: 573-576 - [c21]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
Fast Search Method for Image Vector Quantization Based on Equal-Average Equal-Variance and Partial Sum Concept. ICME 2005: 1440-1443 - [c20]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
Improved fast encoding method for vector quantization based on subvector technique. ISCAS (6) 2005: 6332-6335 - 2004
- [j15]Tadahiro Ohmi, Koji Kotani, Qiu Chen, Feifei Lee:
Face Recognition Algorithm using Vector Quantization Codebook Space Information Processing. Intell. Autom. Soft Comput. 10(2): 129-142 (2004) - [j14]Qiu Chen, Koji Kotani, Yoshiyuki Taniguchi, Zhibin Pan, Tadahiro Ohmi:
Robust Face Detection Combined Skin Color Features, Template Matching and VQ Histogram Method in Practical Environments. Intell. Autom. Soft Comput. 10(2): 143-153 (2004) - [j13]Takahiro Nakayama, Masahiro Konda, Koji Takeuchi, Koji Kotani, Tadahiro Ohmi:
Still Image Compression with Adaptive Resolution Vector Quantization Technique. Intell. Autom. Soft Comput. 10(2): 155-165 (2004) - [j12]Zhibin Pan, Tadahiro Ohmi, Koji Kotani:
A Fast Encoding Method for Vector Quantization by using Multi Euclidean Distance Estimations. Intell. Autom. Soft Comput. 10(2): 167-174 (2004) - [j11]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
An Improved Fast Encoding Algorithm for Vector Quantization Using 2-Pixel-Merging Sum Pyramid and Manhattan-Distance-First Check. IEICE Trans. Inf. Syst. 87-D(2): 494-499 (2004) - [j10]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
An improved fast encoding algorithm for vector quantization using 2-pixel-merging sum pyramid data structure. Pattern Recognit. Lett. 25(4): 459-468 (2004) - [j9]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
An improved full-search-equivalent vector quantization method using the law of cosines. IEEE Signal Process. Lett. 11(2): 247-250 (2004) - [j8]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
A unified projection method for fast search of vector quantization. IEEE Signal Process. Lett. 11(7): 637-640 (2004) - [j7]William J. Marble, Koji Kotani, Craig S. Petrie:
Practical charge-transfer amplifier design architectures for low-power flash A/D converters. IEEE Trans. Circuits Syst. I Regul. Pap. 51-I(11): 2157-2164 (2004) - [c19]Naoto Miyamoto, Leo Karnan, Kazuyuki Maruo, Koji Kotani, Tadahiro Ohmi:
A small-area high-performance 512-point 2-dimensional FFT single-chip processor. ASP-DAC 2004: 537-538 - [c18]Takeshi Ohkawa, Toshiyuki Nozawa, Masanori Fujibayashi, Naoto Miyamoto, Leo Karnan, Soichiro Kita, Koji Kotani, Tadahiro Ohmi:
The flexible processor an approach for single-chip hardware emulation by dynamic reconfiguration. ASP-DAC 2004: 557-558 - [c17]Naoto Miyamoto, Koji Kotani, Kazuyuki Maruo, Tadahiro Ohmi:
An image recognition processor using dynamically reconfigurable ALU. CICC 2004: 599-602 - [c16]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
A fast search method for vector quantization using 2-pixel-merging sum pyramid in recursive way. EUSIPCO 2004: 1309-1312 - [c15]Md. Ashfaquzzaman Khan, Naoto Miyamoto, Takeshi Ohkawa, Amir Jamak, Soichiro Kita, Koji Kotani, Tadahiro Ohmi:
An approach to realize time-sharing of flip-flops in time-multiplexed FPGAs. FPT 2004: 351-354 - [c14]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
A memory-efficient fast encoding method for vector quantization using 2-pixel-merging sum pyramid. ICASSP (3) 2004: 669-672 - [c13]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
Improved fast search method for vector quantization using discrete walsh transform. ICIP 2004: 3177-3180 - [c12]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
An improved fast encoding method for vector quantization based on memory-efficient data structure. ICME 2004: 1119-1122 - [c11]Kazuyuki Maruo, Masayoshi Ichikawa, Naoto Miyamoto, Leo Karnan, Takahiro J. Yamaguchi, Koji Kotani, Tadahiro Ohmi:
A Dynamically-Reconfigurable Image Recognition Processor. IPDPS 2004 - 2003
- [j6]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
A Fast Encoding Method for Vector Quantization Based on 2-Pixel-Merging Sum Pyramid Data Structure. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 86-A(9): 2419-2423 (2003) - [j5]Masanori Fujibayashi, Toshiyuki Nozawa, Takahiro Nakayama, Kenji Mochizuki, Masahiro Konda, Koji Kotani, Shigetoshi Sugawa, Tadahiro Ohmi:
A still-image encoder based on adaptive resolution vector quantization featuring needless calculation elimination architecture. IEEE J. Solid State Circuits 38(5): 726-733 (2003) - [c10]Masanori Fujibayashi, Toshiyuki Nozawa, Takahiro Nakayama, Kenji Mochizuki, Koji Kotani, Shigetoshi Sugawa, Tadahiro Ohmi:
A still image encoder based on adaptive resolution vector quantization employing needless calculation elimination architecture. ASP-DAC 2003: 567-568 - [c9]Naoto Miyamoto, Leo Karnan, Kazuyuki Maruo, Koji Kotani, Tadahiro Ohmi:
A small-area high performance 512-point 2-dimensional FFT single-chip processor. ESSCIRC 2003: 603-606 - [c8]Takahiro Nakayama, Koji Takeuchi, Masahiro Konda, Koji Kotani, Tadahiro Ohmi:
Still image compression method based on adaptive block segmentation vector quantization technique. ICIP (2) 2003: 275-278 - [c7]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
A fast full search equivalent encoding method for vector quantization by using appropriate features. ICME 2003: 261-264 - [c6]Takahiro Nakayama, Masahiro Konda, Koji Takeuchi, Koji Kotani, Tadahiro Ohmi:
Adaptive resolution vector quantization technique and basic codebook design method for compound image compression. ICME 2003: 549-552 - [c5]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
A post-processing method for vector quantization to achieve higher PSNR and nearly constant bit rate. ISCAS (2) 2003: 436-439 - 2002
- [c4]Koji Kotani, Feifei Lee, Qiu Chen, Tadahiro Ohmi:
Face recognition using vector quantization histogram method. ICIP (2) 2002: 105-108 - [c3]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
A hierarchical fast encoding algorithm for vector quantization with PSNR equivalent to full search. ISCAS (1) 2002: 797-800 - 2001
- [j4]Tadahiro Ohmi, Shigetoshi Sugawa, Koji Kotani, Masaki Hirayama, Akihiro Morimoto:
New paradigm of silicon technology. Proc. IEEE 89(3): 394-412 (2001) - 2000
- [j3]Toshiyuki Nozawa, Masahiro Konda, Masanori Fujibayashi, Makoto Imai, Koji Kotani, Shigetoshi Sugawa, Tadahiro Ohmi:
A parallel vector-quantization processor eliminating redundant calculations for real-time motion picture compression. IEEE J. Solid State Circuits 35(11): 1744-1750 (2000) - [c2]Zhibin Pan, Koji Kotani, Tadahiro Ohmi:
A fast search method of speaker identification for large population using pre-selection and hierarchical matching. INTERSPEECH 2000: 290-293
1990 – 1999
- 1999
- [j2]Tadahiro Ohmi, Tadashi Shibata, Koji Kotani, Tsutomu Nakai, Akira Nakada, Ning Mei Yu, Masahiro Konda, Tatsuo Morimoto, Yuichiro Yamashita:
Association hardware for intelligent electronic systems. Syst. Comput. Jpn. 30(12): 52-62 (1999) - 1998
- [j1]Koji Kotani, Tadashi Shibata, Tadahiro Ohmi:
CMOS charge-transfer preamplifier for offset-fluctuation cancellation in low-power A/D converters. IEEE J. Solid State Circuits 33(5): 762-769 (1998) - 1993
- [c1]Tadashi Shibata, Koji Kotani, Takeo Yamashita, Hiroshi Ishii, Hideo Kosaka, Tadahiro Ohmi:
Implementing Intelligence on Silicon Using Neuron-Like Functional MOS Transistors. NIPS 1993: 919-926
Coauthor Index
[c39] [c37] [c36] [j32] [c34] [c33] [j29] [c32] [c31] [c30] [c29] [c28] [c27] [j27] [j26] [j25] [j24] [j23] [j22] [j21] [c26] [c25] [j20] [j19] [j18] [j17] [j16] [c24] [c23] [c22] [c21] [c20] [j15] [j14] [j13] [j12] [j11] [j10] [j9] [j8] [c19] [c18] [c17] [c16] [c15] [c14] [c13] [c12] [c11] [j6] [j5] [c10] [c9] [c8] [c7] [c6] [c5] [c4] [c3] [j4] [j3] [c2] [j2] [j1] [c1]
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