Abstract: A secondary battery includes an electrode assembly having a negative electrode, a positive electrode tab protruding to a first side, a negative electrode tab protruding to a second side, and a through-hole; an upper can having a flat planar portion and a circumferential portion protruding in a vertical direction along an edge of the flat planar portion; a lower can having a flat planar portion and a circumferential portion protruding in the vertical direction along an edge of the flat planar portion; and a center pin configured to apply elastic force in the vertical direction when being inserted into the through-hole. The center pin applies the elastic force to allow the negative electrode tab to be in direct contact with the lower can and allow the positive electrode tab to be in direct contact with the upper can.

Abstract: A stereo disparity between a reference image and a search image for a reference pixel in the reference image is determined by (a) calculating a similarity measure between a reference window including a set of pixels centering on the reference pixel and each of a group of search windows in the search image which is of a same shape with the reference window and displaced from the reference window within a predetermined search range, wherein a matching pixel count, which is the number of pixels in the reference window which are similar in intensity to corresponding pixels in a search window, is used as the similarity measure between the reference window and the search window; and (b) determining a displacement between the reference window and a search window which yields a largest similarity measure as the stereo disparity for the reference pixel.