Imaging Unit And System and image sensor unit

The invention provides an imaging unit and system and an image sensor unit. The imaging unit includes: a light source configured to perform spot scanning along a scanning line by projecting a series of light spots toward a surface of an object; and an image sensor unit comprising a pixel array, forming an image plane, wherein the pixel array includes at least one row of pixels forming at least a portion of an epipolar line of the scan line, each of the at least one row of pixels configured to generate a pixel-specific output in response to detecting a light spot of the series of light spots reflected from a surface of the object; and at least one timestamp generator, each of the at least one timestamp generator being associated with a corresponding column of pixels of the at least one row,wherein each of the at least one timestamp generator is configured to generate a pixel-specific timestamp value for a pixel-specific output of pixels of the corresponding column. 提供一种成像单元、系统以及图像传感器单元。所述成像单元包括：光源，被配置为通过朝向对象的表