Solid-state image-pickup device having primary color and gray color filters and processing means thereof
AssigneeSony Corporation
InventorShinichiro Saito
Life of this patent
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Abstract
In a single plate type solid-state image pickup device having a color filter with primary color filters, gray filters are disposed at specific pixels of the arrangement of the primary color filters, whereby variation of the sense of resolution with respect to color can be prevented, and outline emphasis is applied to achieve an excellent image.
Claims8
A single plate type solid-state image pickup device having primary-color type color filters, characterized in that gray filters are arranged at specific pixels of the arrangement of the three primary color filters, said image pickup device further comprising means for applying carrier balance so that said gray filters have substantially the same frequency characteristic as the other three primary color filters, wherein the color arrangement of said color filters is Bayer arrangement, and green filters that are adjacent to red filters in the horizontal direction or green filters that are adjacent to blue filters in the horizontal direction are replaced by said gray filters.
A single plate type solid-state image pickup device having primary-color type color filters, characterized in that gray filters are arranged at specific pixels of the arrangement of the three primary color filters, said image pickup device further comprising means for applying carrier balance so that said gray filters have substantially the same frequency characteristic as the other three primary color filters, further comprising white balance correction means for correcting the white balance of the signal output from the carrier balance means.
A single plate type solid-state image pickup device having primary-color type color filters, characterized in that gray filters are arranged at specific pixels of the arrangement of the three primary color filters, said image pickup device further comprising means for applying carrier balance so that said gray filters have substantially the same frequency characteristic as the other three primary color filters, wherein the color arrangement of said color filters is g-stripe arrangement, and every other green filter in each column of g-stripe arranged green filters are replaced by said gray filters.
A single plate type solid-state image pickup device having red, green, blue, and gray color filters, characterized in that the gray filters are arranged at specific pixels of the arrangement of the three primary color filters, and wherein the transmissivity of the gray filter is set so that the integration value in the visible region is substantially equal to that of the green filters.
A single plate type solid-state image pickup device having red, green, blue, and gray color filters, characterized in that the gray filters are arranged at specific pixels of the arrangement of the three primary color filters, and wherein the transmissivity of the gray filter is set so that the integration value in the visible region is below that of the green filters.
Dependencies are inferred from the claim text.