Title:
NOISE FILTERING FOR DYNAMIC VISION SENSOR
Document Type and Number:
WIPO Patent Application WO/2023/092798
Kind Code:
A1
Abstract:
Disclosed in the present invention are a noise filtering apparatus and method for a dynamic vision sensor (DVS), and a chip, an event-driven vision apparatus and an electronic device. In order to meet multi-dimensional requirements of a noise reduction solution for power consumption, a delay, storage resources, computing resources, a noise reduction effect, a noise type application range, a hardware implementation difficulty, etc., a shift register in the present invention aggregates global space domain information and global time domain information, or collects the latest time domain information by means of the space domain, and finally determines, on the basis of the clustering of the space domain information and the time domain information, whether an event that is generated by a DVS is a noise event. While an excellent noise reduction performance is achieved, due to the advantages of parallel and simple calculation, no dependence on DVS resolution, etc., the present invention has significant advantages in terms of the plurality of dimensions. The present invention is particularly suitable for performing noise reduction on a pulse event that is generated by a DVS, and an input pulse event of a brain-like chip.
Inventors:
KE LINGYUN (CN)
QIAO NING (CN)
ZENG WEITAO (CN)
WANG MIN (CN)
KE ZHENG (CN)
ZHOU KAI (CN)
REN YUDI (CN)
ZHANG LIN (CN)
FAN JIANJUN (CN)
YU JUNJUN (CN)
WANG JUN (CN)
GONG XIWEN (CN)
QIAO NING (CN)
ZENG WEITAO (CN)
WANG MIN (CN)
KE ZHENG (CN)
ZHOU KAI (CN)
REN YUDI (CN)
ZHANG LIN (CN)
FAN JIANJUN (CN)
YU JUNJUN (CN)
WANG JUN (CN)
GONG XIWEN (CN)
Application Number:
PCT/CN2021/141813
Publication Date:
June 01, 2023
Filing Date:
December 27, 2021
Export Citation:
Assignee:
CHENGDU SYNSENSE TECH CO LTD (CN)
SHENZHEN SYNSENSE TECH CO LTD (CN)
SHANGHAI SYNSENSE TECH CO LTD (CN)
SHENZHEN SYNSENSE TECH CO LTD (CN)
SHANGHAI SYNSENSE TECH CO LTD (CN)
International Classes:
H04N5/217
Foreign References:
| CN113408671A | 2021-09-17 | |||
| CN112232356A | 2021-01-15 | |||
| CN111031266A | 2020-04-17 | |||
| CN111064865A | 2020-04-24 | |||
| CN111770290A | 2020-10-13 | |||
| US10892012B2 | 2021-01-12 |
Attorney, Agent or Firm:
PURPLEVINE INTELLECTUAL PROPERTY (SHENZHEN) CO., LTD. (CN)
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