Invention Grant
US09438812B2 Method for controlling exposure level of frame in image sensor, computer readable recording media for performing the method, and image processing system
有权
用于控制图像传感器中的帧的曝光水平的方法，用于执行该方法的计算机可读记录介质和图像处理系统
- Patent Title: Method for controlling exposure level of frame in image sensor, computer readable recording media for performing the method, and image processing system
- Patent Title (中): 用于控制图像传感器中的帧的曝光水平的方法，用于执行该方法的计算机可读记录介质和图像处理系统
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Application No.: US14332320Application Date: 2014-07-15
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Publication No.: US09438812B2Publication Date: 2016-09-06
- Inventor: Po-Fang Chen , Po-Chang Chen , Yuan-Chih Peng
- Applicant: Himax Imaging Limited
- Applicant Address: TW Tainan
- Assignee: Himax Imaging Limited
- Current Assignee: Himax Imaging Limited
- Current Assignee Address: TW Tainan
- Agent Winston Hsu; Scott Margo
- Main IPC: H04N5/235
- IPC: H04N5/235 ; H04N5/353 ; H04N5/243 ; H04N5/355 ; H04N5/378
Abstract:
A method for controlling a frame exposure level, comprising: (a) determining a second integration time for the pixel array via a desired exposure level, and determining a second analog gain and a second digital gain via a desired total gain; (b) respectively applying the second analog gain and the second digital gain to amplify at least one second light sensing signal and at least one digital light sensing signal generated from the second light sensing signal; (c) computing a desired total gain for the third frame, and determining a third analog gain and a third digital gain via the desired total gain; and (d) respectively applying the third analog gain and the third digital gain to amplify at least one third light sensing signal and at least one digital light sensing signal generated from the third light sensing signal, and applying the second integration time to the pixel array.
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