In:
Optics Letters, Optica Publishing Group, Vol. 45, No. 24 ( 2020-12-15), p. 6863-
Abstract:
In this Letter, we demonstrate the design and fabrication of a
biomimetic curved compound-eye camera (BCCEC) with a high resolution for detecting distant moving objects purpose. In contrast to
previously reported compound-eye cameras, our BCCEC has two distinct features. One is that the ommatidia of the compound eye are deployed
on a curved surface which makes a large field of view (FOV) possible. The other is that each ommatidium has a relatively large optical
entrance and long focal length so that a distant object can be imaged. To overcome the mismatch between the curved focal plane formed by the
curved compound eye and the planar focal plane of the CMOS image sensor (CIS), an optical relay subsystem is introduced between the
compound eye and the CIS. As a result, a BCCEC with 127 ommatidia in the compound eye is designed and fabricated to achieve a large FOV of
up to 98 ∘ × 98 ∘ . The experimental results show that
objects with a size of 100 mm can be clearly resolved at a distance of 25 m. The capture of the motion trajectories of a moving object is
also demonstrated, which makes it possible to detect and track the moving targets in a huge FOV for security surveillance purposes.
Type of Medium:
Online Resource
ISSN:
0146-9592
,
1539-4794
Language:
English
Publisher:
Optica Publishing Group
Publication Date:
2020
detail.hit.zdb_id:
243290-0
