Image acquisition method capable of improving frame rate of CCD

• Main Authors: WANG KUILU, YANG SHAOHUA, WANG QUNSHU, GUO MINGAN, LI BINKANG, XIA JINGTAO
• Format: Patent
• Language: Chinese; English
• Published: 02.06.2010
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

The invention relates to an image acquisition method capable of improving frame rate of a CCD, which comprises the following steps: 1) taking the frame-transfer type CCD with storage function, wherein the frame-transfer type CCD comprises an image sensitive area, a storage area and a registration area; 2) carrying out exposure on the CCD, and leading the image sensitive area to generate photo-generated charges; 3) adopting the vertical a: 1 packing method to transfer a lines of the photo-generated charges of the image sensitive area from top to bottom into 1 line of pixels of the storage area under the common action of driving pulses of the image sensitive area and the driving pulses of the storage area, repeating the transfer process, carrying out parallel transfer once on the pixels of the storage area from the top to the bottom at each time of transferring a lines of the photo-generated charges, and then carrying out exposure waiting; 4) repeating the step 2) and the step 3); and 5) transferring m lines of