With the analysis among 9,150 patents, we discovered top 457 key players by total patent application. Nippon Telegraph & Telephone Corp., StradVision, Inc., NEC Corp. are dominant in this area. They take 13.65% of the total patent filing.  
Nippon Telegraph & Telephone Corp.
Tokyo-to, Japan
Patent: 483
Tokyo-to, Japan
Patent: 371
Tokyo-to, Japan
Patent: 326
Tokyo-to, Japan
Patent: 192
Tokyo-to, Japan
Patent: 131
Samsung Electronics Co., Ltd.
Mitsubishi Electric Corp.
Tokyo-to, Japan
Patent: 123
Yamanashi-ken, Japan
Patent: 103
Tokyo-to, Japan
Patent: 101
With the analysis among 313 patents, we discovered top 123 start-ups by total patent application. Beijing Baidu Netcom Science & Technology Co., Ltd., Preferred Networks Corp., Bryte, Inc. are active in this area.  
Beijing Baidu Netcom Science & Technology Co., Ltd.
Beijing Shi, China
Patent: 48
Tokyo-to, Japan
Patent: 31
California, United States
Patent: 10
Hangzhou Hyperchain Technologies Co., Ltd.
Zhejiang Sheng, China
Patent: 8
Pinpoint Predictive, Inc.
California, United States
Patent: 5
Gyeonggi-do, South Korea
Patent: 5
Matrixtime Robotics (Shanghai) Co., Ltd.
Shanghai Shi, China
Patent: 5
With the analysis among related 8,589 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing StradVision, Inc., Nippon Telegraph & Telephone Corp., Fujitsu Ltd. take 10.87% of patent filing during this period.  
Nippon Telegraph & Telephone Corp.
Tokyo-to, Japan
Patent: 325
Tokyo-to, Japan
Patent: 221
Tokyo-to, Japan
Patent: 214
Mitsubishi Electric Corp.
Tokyo-to, Japan
Patent: 92
Tokyo-to, Japan
Patent: 86
Zhejiang Sheng, China
Patent: 80
Beijing Shi, China
Patent: 77
Baden-Württemberg, Germany
Patent: 66
Kyoto-fu, Japan
Patent: 65
With the analysis among related 8,589 patents in last 5 years, we discover 253 new entrants. Sikelin Group Co., Ltd, Alipay (Hangzhou) Information Technology Co., Ltd., Shenzhen Qianhai Webank Co. Ltd. are the most active new entrants in this area.  
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Patent: 36
Alipay (Hangzhou) Information Technology Co., Ltd.
Zhejiang Sheng, China
Patent: 35
Shenzhen Qianhai Webank Co. Ltd.
Guangdong Sheng, China
Patent: 29
Ping An Technology (Shenzhen) Co., Ltd.
Guangdong Sheng, China
Patent: 25
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Patent: 20
Kanagawa-ken, Japan
Patent: 16
Tokyo-to, Japan
Patent: 15
Canon Medical Systems Corp.
Tochigi-ken, Japan
Patent: 13
Douyin Vision (Beijing) Co., Ltd.
Beijing Shi, China
Patent: 13
Taiwan Province, China
Patent: 12
With the analysis among 3,762 patents, we discovered top 281 universities and scientific research institutions by total patent application. Tsinghua University, Zhejiang University, Korea Advanced Institute of Science & Technology are dominant in this area. They take 7.39% of the total patent filing.  
Beijing Shi, China
Patent: 104
Zhejiang Sheng, China
Patent: 101
Korea Advanced Institute of Science & Technology
University of Electronic Science & Technology of China
Sichuan Sheng, China
Patent: 60
Nanjing University of Posts & Telecommunications
Jiangsu Sheng, China
Patent: 59
Guangdong Sheng, China
Patent: 52
Beijing Shi, China
Patent: 51
Beijing University of Technology
Beijing Shi, China
Patent: 49
Beijing University of Posts & Telecommunications
Beijing Shi, China
Patent: 49
Beijing Institute of Technology
Beijing Shi, China
Patent: 48