JP2014165676A5 - - Google Patents

Claims (17)

  The effective pixel based on the number of pixels for each row that outputs a signal value larger than the first determination value among the output signals of the effective pixel portion of the imaging device having a plurality of pixels and the output signal of the light-shielding pixel portion of the imaging device. A signal processing apparatus comprising correction means for correcting the output signal of each section for each row. First comparison means for comparing an output signal of an effective pixel portion of an image sensor having a plurality of pixels with the first determination value;
Counting means for counting, for each row, the number of pixels that output a signal value larger than the first determination value based on a comparison result by the first comparison means;
2. The signal according to claim 1, wherein the correction unit corrects the output signal of the effective pixel unit for each row based on the output signal of the light-shielding pixel unit of the image sensor and the counting result of the counting unit. Processing equipment.   Second comparison means for comparing the counting result by the counting means with a second determination value is provided, and the correction means corrects the output signal of the effective pixel unit based on the comparison result by the second comparison means. The signal processing apparatus according to claim 2, wherein:   Third comparison means for comparing a counting result by the counting means with a second determination value and a third determination value, and the correction means, based on the comparison result by the third comparison means, the effective pixel The signal processing apparatus according to claim 2, wherein an output signal of the unit is corrected. Wherein the correction means includes a switching means for switching the gain, and multiplying means for multiplying the gain switched output signal and said switching means of said light-shielded pixel portion of each row, the multiplication by the multiplication means which is calculated for each row 2. Subtracting means for subtracting the result from the output signal of the effective pixel portion of each row, and performing correction by subtracting the subtraction result from the output signal of the effective pixel portion of each row. 5. The signal processing device according to any one of 4 above. The signal processing apparatus according to claim 2, wherein the counting unit considers continuity in a horizontal direction of pixels that output a signal value larger than the first determination value. The signal processing apparatus according to claim 2, wherein the counting unit considers continuity in a vertical direction of pixels that output a signal value larger than the first determination value.   The signal processing apparatus according to claim 1, wherein the first determination value is switchable according to ISO sensitivity at the time of shooting.   The signal processing apparatus according to claim 1, wherein the first determination value can be switched according to an output for each color of the subject.   The signal processing apparatus according to claim 1, wherein the first determination value can be switched according to an incident position of a high-luminance subject.   The signal processing apparatus according to claim 2, wherein the second determination value can be switched according to ISO sensitivity at the time of shooting.   The signal processing apparatus according to claim 3, wherein the second determination value is switchable according to an output for each color of the subject.   The signal processing apparatus according to claim 3, wherein the second determination value can be switched according to an incident position of a high-luminance subject.   The signal processing apparatus according to claim 5, wherein the gain is switchable according to ISO sensitivity at the time of shooting.   55. The signal processing apparatus according to claim 54, wherein the gain can be switched according to an output for each color of a subject.   The signal processing apparatus according to claim 5, wherein the gain can be switched according to an incident position of a high-luminance subject.   An imaging device comprising: an imaging device having a plurality of pixels; and the signal processing device according to claim 1.