3 research outputs found
Π’Π΅Π»Π΅Π²ΠΈΠ·ΠΈΠΎΠ½Π½Π°Ρ ΠΊΠ°ΠΌΠ΅ΡΠ° Π²ΠΈΠ΄ΠΈΠΌΠΎΠ³ΠΎ ΠΈ Π±Π»ΠΈΠΆΠ½Π΅Π³ΠΎ ΠΈΠ½ΡΡΠ°ΠΊΡΠ°ΡΠ½ΠΎΠ³ΠΎ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½ΠΎΠ²
Variants of design of a multispectral TV camera of visible and near infrared (RGB&NIR) of ranges are considered. The test bench of single image sensor RGB&NIR-camera is developed. The review of the most perspective applications of com.pact RGB&NIR-camera is carried out.Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ Π²Π°ΡΠΈΠ°Π½ΡΡ ΠΏΠΎΡΡΡΠΎΠ΅Π½ΠΈΡ ΠΌΡΠ»ΡΡΠΈΡΠΏΠ΅ΠΊΡΡΠ°Π»ΡΠ½ΠΎΠΉ ΡΠ΅Π»Π΅Π²ΠΈΠ·ΠΈΠΎΠ½Π½ΠΎΠΉ ΠΊΠ°ΠΌΠ΅ΡΡ Π²ΠΈΠ΄ΠΈΠΌΠΎΠ³ΠΎ ΠΈ Π±Π»ΠΈΠΆΠ½Π΅Π³ΠΎ ΠΈΠ½ΡΡΠ°ΠΊΡΠ°ΡΠ½ΠΎΠ³ΠΎ (RGB&NIR) Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½ΠΎΠ². Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½ ΠΌΠ°ΠΊΠ΅Ρ ΠΎΠ΄Π½ΠΎΠΌΠ°ΡΡΠΈΡΠ½ΠΎΠΉ RGB&NIR-ΠΊΠ°ΠΌΠ΅ΡΡ. ΠΡΠΎΠ²Π΅Π΄Π΅Π½ ΠΎΠ±Π·ΠΎΡ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΡΡ
ΠΎΠ±Π»Π°ΡΡΠ΅ΠΉ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΊΠΎΠΌΠΏΠ°ΠΊΡΠ½ΡΡ
RGB&NIR-ΠΊΠ°ΠΌΠ΅Ρ
Spectral Characterization of a Prototype SFA Camera for Joint Visible and NIR Acquisition
Multispectral acquisition improves machine vision since it permits capturing more information on object surface properties than color imaging. The concept of spectral filter arrays has been developed recently and allows multispectral single shot acquisition with a compact camera design. Due to filter manufacturing difficulties, there was, up to recently, no system available for a large span of spectrum, i.e., visible and Near Infra-Red acquisition. This article presents the achievement of a prototype of camera that captures seven visible and one near infra-red bands on the same sensor chip. A calibration is proposed to characterize the sensor, and images are captured. Data are provided as supplementary material for further analysis and simulations. This opens a new range of applications in security, robotics, automotive and medical fields
High Dynamic Range Spectral Imaging Pipeline For Multispectral Filter Array Cameras
Spectral filter arrays imaging exhibits a strong similarity with color filter arrays. This permits
us to embed this technology in practical vision systems with little adaptation of the existing
solutions. In this communication, we define an imaging pipeline that permits high dynamic range
(HDR)-spectral imaging, which is extended from color filter arrays. We propose an implementation
of this pipeline on a prototype sensor and evaluate the quality of our implementation results on
real data with objective metrics and visual examples. We demonstrate that we reduce noise, and, in
particular we solve the problem of noise generated by the lack o