QUALITY-DRIVEN DYNAMIC FREQUENCY SCALING FOR ENERGY OPTIMIZATION OF SMART CAMERA SYSTEMS

    公开(公告)号:US20190204892A1

    公开(公告)日:2019-07-04

    申请号:US15856528

    申请日:2017-12-28

    Abstract: A smart camera system including an image sensor and a controller is presented. The image sensor generates video data that is initially at a bit rate of a pre-determined bit rate value. The controller is coupled to the image sensor to transmit the video data. The controller includes a processor operating at a clock rate of a first frequency. The processor is coupled to memory, the memory including instructions, which when executed by the controller causes the smart camera system to perform operations. The operations include dynamically scaling the clock rate of the processor to an adjustment frequency in response to receiving an input to change the bit rate of the video data. The adjustment frequency for the clock rate of the processor based, at least in part, on the input bit rate value. The operations further include changing the bit rate to the input bit rate value. The input bit rate value being different than the pre-determined bit rate value and the first frequency being different than the adjustment frequency.

    Quality-driven dynamic frequency scaling for energy optimization of smart camera systems

    公开(公告)号:US10739838B2

    公开(公告)日:2020-08-11

    申请号:US15856528

    申请日:2017-12-28

    Abstract: A smart camera system including an image sensor and a controller is presented. The image sensor generates video data that is initially at a bit rate of a pre-determined bit rate value. The controller is coupled to the image sensor to transmit the video data. The controller includes a processor operating at a clock rate of a first frequency. The processor is coupled to memory, the memory including instructions, which when executed by the controller causes the smart camera system to perform operations. The operations include dynamically scaling the clock rate of the processor to an adjustment frequency in response to receiving an input to change the bit rate of the video data. The adjustment frequency for the clock rate of the processor based, at least in part, on the input bit rate value. The operations further include changing the bit rate to the input bit rate value. The input bit rate value being different than the pre-determined bit rate value and the first frequency being different than the adjustment frequency.

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