Q. 如何正確地選擇適合的CCTV？

►答：

FOV = sensor size/倍率

Pixel size = sensor size/解析度

1 Pixel精度= FOV H(or V)/解析度or 1 Pixel精度= Pixel /倍率

範例：

解析度: 659x494, sensor size: 4.88x3.66mm, 倍率: 2X

FOV = sensor size /倍率= 4.88/2 = 2.44

Pixel size = sensor size /解析度= 4.88/659 = 0.0074mm = 7.4μm

1 Pixel精度= FOV H (or V) /解析度or 1 Pixel精度= Pixel /倍率

1 Pixel精度= 2.44/659= 0.0037mm= 3.7μm or 1 Pixel精度= 7.4/2= 3.7μm