Patent application number | Description | Published |
20090174788 | IMAGE PROCESSING APPARATUS, CONTROL METHOD, AND COMPUTER-READABLE STORAGE MEDIUM - An image processing apparatus that enables to make a periodic noise in a captured image less noticeable without making the whole construction thereof complicated. An image pick up unit accumulates electric charges corresponding to an optical image of a target object and transfers the accumulated electric charges, and also reads them out as image signals. A control unit drives the image pick up unit to read out the image signals consecutively from the image pick up unit in a field-by-field base in such a manner so as to make the horizontal cycle of each field different from one another. | 07-09-2009 |
20090278970 | IMAGE SENSING APPARATUS AND CONTROL METHOD THEREFOR, AND IMAGE PROCESSING APPARATUS AND REDUCTION METHOD - An image sensing apparatus has an image sensor including two-dimensionally arranged photoelectric conversion elements, a VCCD for transferring in a vertical direction electric charge accumulated in the photoelectric conversion elements, and a HCCD for transferring in a horizontal direction the electric charge transferred from the VCCD, the image sensor for carrying out transfer of electric charge by the VCCD during transfer of electric charge by the HCCD; a noise reduction unit for reducing noise including noise caused by driving the VCCD from an image signal output from the HCCD; and a control unit for controlling whether or not noise reduction is to be carried out based on at least one of the sensitivity, shutter speed, and temperature of the image sensor. | 11-12-2009 |
20100053380 | IMAGE SENSING APPARATUS AND CONTROL METHOD THEREFOR - A period of periodical noise caused by a period of a drive signal of a CMOS sensor and a period of a signal generated by driving of a circuit other than the CMOS sensor is acquired, and a length of a horizontal blanking period is adjusted so that one horizontal period of a drive signal of the CMOS sensor becomes an integer multiple of the periodical noise period. Then, column noise is detected from an image signal read out by driving the CMOS sensor with a drive signal based on one horizontal period after the adjustment and the detected column noise is subtracted from the image signal. | 03-04-2010 |
20100253803 | IMAGE PICKUP APPARATUS - An image pickup apparatus that can reduce power consumption of the image pickup apparatus, and take high-definition moving images at high speed without bringing about decreases in recordable time and the number of still images taken. An image pickup processing unit is operated in a plurality of operation modes, and has an image pickup device and a plurality of processing units that process image pickup signals outputted from the image pickup device. An interval control circuit causes the image pickup processing unit to switch between a standby ON state and a standby OFF state in predetermined timing. A control signal is outputted to the interval control unit according to an operation mode of the image pickup processing unit. When the image pickup processing unit lies in a predetermined operation mode, a control signal for causing the interval control circuit to perform the switching is outputted to the interval control circuit. | 10-07-2010 |
20110013855 | IMAGE PROCESSING APPARATUS - An image processing apparatus includes a first noise removal unit which removes noise from a pixel signal when a level of the signal falls outside a range defined by first and second threshold levels, a cyclic calculation unit which makes a cyclic calculation based on weighted averaging between signals on an identical column with respect to the signal in which the noise is removed by the first noise removal unit, a column offset detection unit which detects a column offset component for each column based on the calculation result, and a second noise removal unit which performs a noise removal operation with respect to a signal on the identical column using the previously calculated cyclic calculation result when a difference between the previously calculated cyclic calculation value and the current pixel signal value falls outside a range defined by third and fourth threshold levels. | 01-20-2011 |
20110176040 | IMAGE SENSING APPARATUS AND CONTROL METHOD THEREFOR - An image sensing apparatus includes an image sensing unit that performs image sensing by converting incoming light into electrical signals, a control unit that controls driving of the image sensing unit so as to read out the electrical signals by each area of a plurality of areas of the image sensing unit, and a signal processing unit that processes the electrical signals read out by each of the plurality of areas. The control unit varies a horizontal cycle that drives the image sensing unit for each of the plurality of areas. | 07-21-2011 |
20110317039 | IMAGE PICKUP APPARATUS AND CONTROL METHOD THEREFOR - An image pickup apparatus capable of improving a conversion speed of column parallel A/D converters, while preventing a gradation representation of image pickup signals from becoming rough. The image pickup apparatus includes a CMOS sensor having A/D converters provided on output sides of column amplifiers for respective columns of two-dimensionally arranged pixels. The A/D converters have a first operation mode in which they operate with a first number of conversion bits and at a first conversion speed and a second operation mode in which they operate with a second number of conversion bits and at a second conversion speed. A signal processing circuit adds together plural pieces of two-dimensionally arranged pixel data output from the A/D converter that operate in the second operation mode, thereby expanding the number of gradation bits of the pixel data from the second number of conversion bits. | 12-29-2011 |
20130070127 | IMAGE PICKUP APPARATUS - An image pickup apparatus that can reduce power consumption of the image pickup apparatus, and take high-definition moving images at high speed without bringing about decreases in recordable time and the number of still images taken. An image pickup processing unit is operated in a plurality of operation modes, and has an image pickup device and a plurality of processing units that process image pickup signals outputted from the image pickup device. An interval control circuit causes the image pickup processing unit to switch between a standby ON state and a standby OFF state in predetermined timing. A control signal is outputted to the interval control unit according to an operation mode of the image pickup processing unit. When the image pickup processing unit lies in a predetermined operation mode, a control signal for causing the interval control circuit to perform the switching is outputted to the interval control circuit. | 03-21-2013 |