Event-Driven Vision Sensor With In-Pixel Spatial Contrast Computation Capabilities and On-Chip AER Sequencer
Spatial contrast (SC) detection is a fundamental task in computer vision, crucial for simplifying images at an early stage. However, this process typically demands significant power and processing resources. In this paper, we present a novel 128 × 128 pixel asynchronous vision sensor designed to com...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/410016 |
| Acceso en línea: | http://hdl.handle.net/10261/410016 https://api.elsevier.com/content/abstract/scopus_id/85218747902 |
| Access Level: | acceso abierto |
| Palabra clave: | AER Asynchronous Edge detector Image Spatial contrast Vision sensor |
| Sumario: | Spatial contrast (SC) detection is a fundamental task in computer vision, crucial for simplifying images at an early stage. However, this process typically demands significant power and processing resources. In this paper, we present a novel 128 × 128 pixel asynchronous vision sensor designed to compute SC, thereby eliminating the need to transmit and process intensity frames externally. The sensor is fabricated using 180 nm CMOS technology, with a pixel pitch of 28 × 26 µm2 . Each pixel provides temporal information relative to its four adjacent pixels to compute the temporal contrast, transmitting data asynchronously. An integrated on-chip Address-EventRepresentation (AER) sequencer efficiently manages pixel events, reducing latency requirements on the processing unit. Additionally, the sensor is capable of performing standard imaging operations. Various methods for SC computation are discussed, along with their implementation within the sensor |
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