发明名称 |
WIDE DYNAMIC RANGE USING MONOCHROMATIC SENSOR |
摘要 |
A system for digital imaging in a light deficient environment includes an emitter for providing illumination with electromagnetic pulses. The system includes an image sensor that creates image data from the electromagnetic pulses. The image sensor has a plurality of subsets of differing pixels, where each of the pixels comprises a transfer gate transistor. Each transfer gate transistor in one subset of pixels is electrically connected by a TX signal. The TX signal provides global operation of transfer gate transistor (TX) per subset of pixels. The system includes a memory comprising instructions for controlling the emitter so as to pulse for a plurality of exposures that correspond to the subsets of differing pixels and instructions that coordinate the electromagnetic pulses being emitted during a blanking portion of the image sensor frame period. The system includes a processor that combines a plurality of exposures to expand dynamic range. |
申请公布号 |
US2017078548(A1) |
申请公布日期 |
2017.03.16 |
申请号 |
US201615362512 |
申请日期 |
2016.11.28 |
申请人 |
Depuy Synthes Products, Inc. |
发明人 |
Blanquart Laurent;Richardson John |
分类号 |
H04N5/232;H04N9/04;H04N5/376;H04N5/225;H04N5/235 |
主分类号 |
H04N5/232 |
代理机构 |
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代理人 |
|
主权项 |
1. A system for digital imaging in a light deficient environment comprising:
an emitter for providing illumination in electromagnetic pulses; an image sensor that is sensitive to the electromagnetic pulses and creates image data therefrom; wherein said image sensor comprises a plurality of subsets of differing pixels; wherein each of the pixels comprises a transfer gate transistor; wherein each transfer gate transistor in one subset of pixels are electrically connected together by a TX signal; wherein the TX signal provides global operation of transfer gate transistor (TX) per subset of pixels; a memory comprising instruction for controlling the emitter so as to pulse for a plurality of exposures that correspond to the subsets of differing pixels; wherein said memory further comprises instructions that coordinate the pulses to be emitted during a predefined portion of the image sensor frame period during which pulse sensitive pixels are not read; and wherein a processor combines the plurality of exposures to expand dynamic range. |
地址 |
Raynham MA US |