Implementing Intelligence on Silicon Using Neuron-Like Functional MOS Transistors. - Tadashi Shibata; Koji Kotani; Takeo Yamashita; Hiroshi Ishii 005; Hideo Kosaka; Tadahiro Ohmi (NIPS, 1993)

CMOS charge-transfer preamplifier for offset-fluctuation cancellation in low-power A/D converters. - Koji Kotani; Tadashi Shibata; Tadahiro Ohmi (IEEE J. Solid State Circuits, 1998)

Association hardware for intelligent electronic systems. - Tadahiro Ohmi; Tadashi Shibata; Koji Kotani; Tsutomu Nakai; Akira Nakada; Ning Mei Yu; Masahiro Konda; Tatsuo Morimoto; Yuichiro Yamashita (Syst. Comput. Jpn., 1999)

A fast search method of speaker identification for large population using pre-selection and hierarchical matching. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (INTERSPEECH, 2000)

A parallel vector-quantization processor eliminating redundant calculations for real-time motion picture compression. - Toshiyuki Nozawa; Masahiro Konda; Masanori Fujibayashi; Makoto Imai; Koji Kotani; Shigetoshi Sugawa; Tadahiro Ohmi (IEEE J. Solid State Circuits, 2000)

New paradigm of silicon technology. - Tadahiro Ohmi; Shigetoshi Sugawa; Koji Kotani; Masaki Hirayama; Akihiro Morimoto (Proc. IEEE, 2001)

Face recognition using vector quantization histogram method. - Koji Kotani; Feifei Lee; Qiu Chen; Tadahiro Ohmi (ICIP (2), 2002)

A hierarchical fast encoding algorithm for vector quantization with PSNR equivalent to full search. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (ISCAS (1), 2002)

A still image encoder based on adaptive resolution vector quantization employing needless calculation elimination architecture. - Masanori Fujibayashi; Toshiyuki Nozawa; Takahiro Nakayama; Kenji Mochizuki; Koji Kotani; Shigetoshi Sugawa; Tadahiro Ohmi (ASP-DAC, 2003)

Still image compression method based on adaptive block segmentation vector quantization technique. - Takahiro Nakayama; Koji Takeuchi; Masahiro Konda; Koji Kotani; Tadahiro Ohmi (ICIP (2), 2003)

Adaptive resolution vector quantization technique and basic codebook design method for compound image compression. - Takahiro Nakayama; Masahiro Konda; Koji Takeuchi; Koji Kotani; Tadahiro Ohmi (ICME, 2003)

A fast full search equivalent encoding method for vector quantization by using appropriate features. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (ICME, 2003)

A Fast Encoding Method for Vector Quantization Based on 2-Pixel-Merging Sum Pyramid Data Structure. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2003)

A still-image encoder based on adaptive resolution vector quantization featuring needless calculation elimination architecture. - Masanori Fujibayashi; Toshiyuki Nozawa; Takahiro Nakayama; Kenji Mochizuki; Masahiro Konda; Koji Kotani; Shigetoshi Sugawa; Tadahiro Ohmi (IEEE J. Solid State Circuits, 2003)

A small-area high-performance 512-point 2-dimensional FFT single-chip processor. - Naoto Miyamoto; Leo Karnan; Kazuyuki Maruo; Koji Kotani; Tadahiro Ohmi (ASP-DAC, 2004)

The flexible processor an approach for single-chip hardware emulation by dynamic reconfiguration. - Takeshi Ohkawa; Toshiyuki Nozawa; Masanori Fujibayashi; Naoto Miyamoto; Leo Karnan; Soichiro Kita; Koji Kotani; Tadahiro Ohmi (ASP-DAC, 2004)

An image recognition processor using dynamically reconfigurable ALU. - Naoto Miyamoto; Koji Kotani; Kazuyuki Maruo; Tadahiro Ohmi (CICC, 2004)

A fast search method for vector quantization using 2-pixel-merging sum pyramid in recursive way. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (EUSIPCO, 2004)

An approach to realize time-sharing of flip-flops in time-multiplexed FPGAs. - Md. Ashfaquzzaman Khan; Naoto Miyamoto; Takeshi Ohkawa; Amir Jamak; Soichiro Kita; Koji Kotani; Tadahiro Ohmi (FPT, 2004)

A memory-efficient fast encoding method for vector quantization using 2-pixel-merging sum pyramid. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (ICASSP (3), 2004)

Improved fast search method for vector quantization using discrete walsh transform. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (ICIP, 2004)

An improved fast encoding method for vector quantization based on memory-efficient data structure. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (ICME, 2004)

A Dynamically-Reconfigurable Image Recognition Processor. - Kazuyuki Maruo; Masayoshi Ichikawa; Naoto Miyamoto; Leo Karnan; Takahiro J. Yamaguchi; Koji Kotani; Tadahiro Ohmi (IPDPS, 2004)

Robust Face Detection Combined Skin Color Features, Template Matching and VQ Histogram Method in Practical Environments. - Qiu Chen; Koji Kotani; Yoshiyuki Taniguchi; Zhibin Pan; Tadahiro Ohmi (Intell. Autom. Soft Comput., 2004)

Still Image Compression with Adaptive Resolution Vector Quantization Technique. - Takahiro Nakayama; Masahiro Konda; Koji Takeuchi; Koji Kotani; Tadahiro Ohmi (Intell. Autom. Soft Comput., 2004)

Face Recognition Algorithm using Vector Quantization Codebook Space Information Processing. - Tadahiro Ohmi; Koji Kotani; Qiu Chen; Feifei Lee (Intell. Autom. Soft Comput., 2004)

A Fast Encoding Method for Vector Quantization by using Multi Euclidean Distance Estimations. - Zhibin Pan; Tadahiro Ohmi; Koji Kotani (Intell. Autom. Soft Comput., 2004)

An Improved Fast Encoding Algorithm for Vector Quantization Using 2-Pixel-Merging Sum Pyramid and Manhattan-Distance-First Check. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (IEICE Trans. Inf. Syst., 2004)

An improved fast encoding algorithm for vector quantization using 2-pixel-merging sum pyramid data structure. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (Pattern Recognit. Lett., 2004)

An improved full-search-equivalent vector quantization method using the law of cosines. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (IEEE Signal Process. Lett., 2004)

A unified projection method for fast search of vector quantization. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (IEEE Signal Process. Lett., 2004)

Practical charge-transfer amplifier design architectures for low-power flash A/D converters. - William J. Marble; Koji Kotani; Craig S. Petrie (IEEE Trans. Circuits Syst. I Regul. Pap., 2004)

Fast encoding method for image vector quantization by using partial sum concept in Walsh domain. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (EUSIPCO, 2005)

Fast Encoding Method for Vector Quantization Based on a New Mixed Pyramid Data Structure. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (ICASSP (2), 2005)

Enhanced fast encoding method for vector quantization by finding an optimally-ordered Walsh transform kernel. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (ICIP (1), 2005)

Fast Search Method for Image Vector Quantization Based on Equal-Average Equal-Variance and Partial Sum Concept. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (ICME, 2005)

Improved fast encoding method for vector quantization based on subvector technique. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (ISCAS (6), 2005)

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. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (IEICE Trans. Inf. Syst., 2005)

A 3.7×3.7mm2 310.9mW 105.2msec 512×512-Pixel Phase-Only Correlation Processor. - Naoto Miyamoto; Koji Kotani; Tadahiro Ohmi (J. Robotics Mechatronics, 2005)

A generalized multiple projection axes method for fast encoding of vector quantization. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (Pattern Recognit. Lett., 2005)

Recursive computation method for fast encoding of vector quantization based on 2-pixel-merging sum pyramid data structure. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (Pattern Recognit. Lett., 2005)

Fast encoding method for vector quantization using modified L2-norm pyramid. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (IEEE Signal Process. Lett., 2005)

Constructing Better Partial Sums Based on Energy-Maximum Criterion for Fast Encoding of VQ. - Zhibin Pan; Tadahiro Ohmi; Koji Kotani (APCCAS, 2006)

Fast encoding method for vector quantization based on sorting elements of codewords to adaptively constructing subvectors. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (ISCAS, 2006)

Region-Division Vector Quantization Histogram Method for Human Face Recognition. - Koji Kotani; Qiu Chen; Feifei Lee; Tadahiro Ohmi (Intell. Autom. Soft Comput., 2006)

Still Image Compression with Mean-Residual Domain Adaptive Resolution Vector Quantization Technique. - Takahiro Nakayama; Masahiro Konda; Koji Takeuchi; Koji Kotani; Tadahiro Ohmi (Intell. Autom. Soft Comput., 2006)

Image Scrambling Method for Information Distribution Via Vector Quantization Codebook Processing. - Takahiro Nakayama; Koji Takeuchi; Masahiro Konda; Koji Kotani; Tadahiro Ohmi (Intell. Autom. Soft Comput., 2006)

An Efficient Method of Constructing L1-Type Norm Feature to Estimate Euclidean Distance for Fast Vector Quantization. - Zhibin Pan; Tadahiro Ohmi; Koji Kotani (Intell. Autom. Soft Comput., 2006)

Post-Processing Method for Vector Quantization to Achieve a Higher PSNR and Nearly Constant Bit Rate. - Zhibin Pan; Tadahiro Ohmi; Koji Kotani (Intell. Autom. Soft Comput., 2006)

Comments on: Novel full-search schemes for speeding up image coding using vector quantization. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (J. Vis. Commun. Image Represent., 2006)

Improved the-law-of-cosines-based fast search method for vector quantization by updating angular information. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (Pattern Recognit. Lett., 2006)

Improving Execution Speed of FPGA using Dynamically Reconfigurable Technique. - Roel Pantonial; Md. Ashfaquzzaman Khan; Naoto Miyamoto; Koji Kotani; Shigetoshi Sugawa; Tadahiro Ohmi (ASP-DAC, 2007)

Improved fast encoding method of vector quantization based on dynamic element reordering for codewords. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (ECCTD, 2007)

Fast Encoding Method of Vector Quantization Based on Optimal Subvector Partition. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (DSP, 2007)

Characteristics of Nano-Grating N-Channel MOSFETs for Improved Current Drivability. - Xiaoli Zhu; Shin-Ichiro Kuroki; Koji Kotani; Hideharu Shido; Masatoshi Fukuda; Yasuyoshi Mishima; Takashi Ito (IEICE Trans. Electron., 2007)

Scale-Invariant Feature Extraction by VQ-Based Local Image Descriptor. - Qiu Chen; Koji Kotani; Feifei Lee; Tadahiro Ohmi (CIMCA/IAWTIC/ISE, 2008)

Fast Search Algorithm for Short Video Clips from Large Video Database Using a Novel Histogram Feature. - Feifei Lee; Koji Kotani; Qiu Chen; Tadahiro Ohmi (CIMCA/IAWTIC/ISE, 2008)

Fast search method for vector quantization by simultaneously using two subvectors. - Zhibin Pan; Koji Kotani; Tadahiro Ohmi (ICME, 2008)

Shot change detection using a novel histogram feature in compressed video. - Feifei Lee; Koji Kotani; Qiu Chen; Tadahiro Ohmi (IEICE Electron. Express, 2008)

Self-Vth-Cancellation High-Efficiency CMOS Rectifier Circuit for UHF RFIDs. - Koji Kotani; Takashi Ito (IEICE Trans. Electron., 2009)

High-Efficiency Differential-Drive CMOS Rectifier for UHF RFIDs. - Koji Kotani; Atsushi Sasaki; Takashi Ito (IEEE J. Solid State Circuits, 2009)

A WiMAX turbo decoder with tailbiting BIP architecture. - Hiroaki Arai; Naoto Miyamoto; Koji Kotani; Hisanori Fujisawa; Takashi Ito (ASP-DAC, 2010)

Feature facial image recognition using VQ histogram in the DCT domain. - Qiu Chen; Koji Kotani; Feifei Lee; Tadahiro Ohmi (ICDIP, 2010)

Fast and efficient search for MPEG-4 video using adjacent pixel intensity difference quantization histogram feature. - Feifei Lee; Koji Kotani; Qiu Chen; Tadahiro Ohmi (ICDIP, 2010)

Highly Reliable and Drivability-Enhanced MOS Transistors with Rounded Nanograting Channels. - Takashi Ito; Xiaoli Zhu; Shin-Ichiro Kuroki; Koji Kotani (IEICE Trans. Electron., 2010)

A Codebook Design Method for Robust VQ-Based Face Recognition Algorithm. - Qiu Chen; Koji Kotani; Feifei Lee; Tadahiro Ohmi (J. Softw. Eng. Appl., 2010)

An Improved Face Recognition Algorithm Using Quantized DCT Coefficients. - Qiu Chen; Koji Kotani; Feifei Lee; Tadahiro Ohmi (SITIS, 2011)

A Robust Face Recognition Algorithm Using Markov Stationary Features and Adjacent Pixel Intensity Difference Quantization Histogram. - Feifei Lee; Koji Kotani; Qiu Chen; Tadahiro Ohmi (SITIS, 2011)

Highly efficient CMOS rectifier assisted by symmetric and voltage-boost PV-cell structures for synergistic ambient energy harvesting. - Koji Kotani (CICC, 2013)

Face Recognition Using Markov Stationary Features and Vector Quantization Histogram. - Qiu Chen; Koji Kotani; Feifei Lee; Tadahiro Ohmi (CSE, 2014)

A Photovoltaic-Assisted CMOS Rectifier for Synergistic Energy Harvesting from Ambient Radio Waves. - Koji Kotani; Takumi Bando; Yuki Sasaki (IEICE Trans. Electron., 2014)

Efficiency Improvement in Photovoltaic-Assisted CMOS Rectifier with Symmetric and Voltage-Boost PV-Cells. - Koji Kotani (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2015)

Face Recognition Using Multiple Histogram Features in Spatial and Frequency Domains. - Qiu Chen; Koji Kotani; Feifei Lee (SITIS, 2016)

Improved multiple histogram-based features for robust face recognition. - Qiu Chen; Feifei Lee; Koji Kotani (CISP-BMEI, 2017)

Video copy detection using histogram based spatio-temporal features. - Feifei Lee; Junjie Zhao; Koji Kotani; Qiu Chen (CISP-BMEI, 2017)

Photovoltaic-Assisted Self-Vth-Cancellation CMOS RF Rectifier for Wide Power Range Operation. - Ren Usami; Takao Komiyama; Yasunori Chonan; Hiroyuki Yamaguchi; Koji Kotani (A-SSCC, 2018)

RF Rectifier Absolute Figure of Merit Based on Relative Comparison with Reference Rectifier. - Koji Kotani; Shota Inoue; Takao Komiyama; Yasunori Chonan; Hiroyuki Yamaguchi (ISCAS, 2019)

Pedestrian as Points: An Improved Anchor-Free Method for Center-Based Pedestrian Detection. - Jiawei Cai; Feifei Lee; Shuai Yang; Chaowei Lin; Hanqing Chen 001; Koji Kotani; Qiu Chen (IEEE Access, 2020)

RS-CapsNet: An Advanced Capsule Network. - Shuai Yang; Feifei Lee; Ran Miao; Jiawei Cai; Lu Chen; Wei Yao 009; Koji Kotani; Qiu Chen (IEEE Access, 2020)

Photovoltaic-assisted self-Vth-cancellation CMOS rectifier for synergistic RF energy harvesting. - Ren Usami; Takao Komiyama; Yasunori Chonan; Hiroyuki Yamaguchi; Koji Kotani (IEICE Electron. Express, 2020)

Scene recognition: A comprehensive survey. - Lin Xie; Feifei Lee; Li Liu 010; Koji Kotani; Qiu Chen (Pattern Recognit., 2020)

NAEM: Noisy Attention Exploration Module for Deep Reinforcement Learning. - Zhenwen Cai; Feifei Lee; Chunyan Hu; Koji Kotani; Qiu Chen (IEEE Access, 2021)