1. A multi-camera imaging system, comprising: a multi-lens module, comprising a multiple-lens arrangement; a multi-sensor module, comprising a multiple-sensor arrangement, wherein positions of the multiple image sensors one-by-one correspond to positions of the multiple lens; a distance adjustment unit, being a temperature compensation mechanism configured to compensate the change of focal length due to temperature, used to adjust a distance between the multi-lens module and the multi-sensor module; a position-sensing module, used to sense a displacement or a change of distance between the multi-lens module and the multi-sensor module; and an image-reconstruction parameter generating unit used to generate image reconstruction parameters for image reconstruction according to the displacement or the change of distance between the multi-lens module and the multi-sensor module.