Imaging apparatuses and a time of flight imaging method
摘要
說明書
The number of sensor pixel sub-image data d, may correspond to (or be equal to) the number of light emitters used to emit light and may contain or include information related to the region of the object. The number of sensor pixel sub-image data, d, may also correspond to (or be equal to) the number of number of sub-regions, s, of the object for which sensor pixel sub-image data is generated. For example, the image processing circuit 103 may be configured to determine the first and the second sub-image data based on the first and the second sensor pixel image data. By subsequently or sequentially activating different illumination units (or e.g. light emitters at different positions), the resolution of a TOF system may be increased, e.g. the resolution of a 3D image produced by the imaging apparatus 100 or a TOF system may be increased.
In some examples, the image processing circuit 103 may additionally or alternatively be configured to produce a reduced-error image of the object based on a comparison of phase information of the first sensor pixel image data and the second sensor pixel image data. For example, the image processing circuit may be configured to produce the image of the object's region based on a selection of one of the first sensor pixel image data and the second sensor pixel image data having a minimum phase value. In this way, sensor pixel image data generated by light emitters having different spatial offsets may be used to reduce multipath propagation based on the different positions of the light emitters. Images which suffer from high multipath propagation may be eliminated, or reduced, and a produced 3D image may be based on image data with minimal or reduced multipath propagation, for example.
