| 摘要 |
The imager includes a frame transfer image array 22 having a plurality of image cells, the image cells accumulating charge in response to input light and arranged in a plurality of image rows and image columns, odd numbered ones of the image rows constituting a first field and even numbered ones of the image rows constituting a second field; and a memory array 24 having a plurality of memory cells arranged in a plurality of memory rows and memory columns for storing charge from the image array 22, wherein, in a first mode, charge in the first field and the second field is transferred to the memory array 24 from the image array, and, in a second mode, charge in the first field is summed with charge in the second field in the image array 22 before being transferred to the memory array 24.
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