Patent ID: 8687069

Claim:
A solid-state image device, comprising: a first substrate including a pixel unit having a plurality of pixels arranged in a matrix for outputting a pixel signal; a second substrate including at least either a motion detection unit detecting a motion amount of the pixel signal in each block including at least one or more pixels or a control unit forming on the second substrate and controlling exposure time of each block based on a result of the detection by the motion detection unit; and a connect unit connecting the pixel unit and the motion detection unit, wherein the pixel unit outputs the results of the pixel of the blocks simultaneously and parallelly thereby to output the results of the pixel of the optical image, and the motion detection unit processes the results of the pixel of the blocks outputted from the pixel unit individually to detect the motion amount for each of the blocks, wherein the motion detection unit includes an average value calculation circuit configured to cumulatively add the results of the pixel for each of the blocks in a unit of a frame to calculate an average value for each of the blocks, and an interframe difference calculation circuit for calculating an interframe difference value of the average values of each of the blocks calculated by the average value calculation circuit, the interframe difference value being a difference between, for a same block of the blocks, the average value calculated in a current frame and the average value calculated in a preceding frame, and detecting the motion amount for each of the blocks based on the corresponding interframe difference value.