High-speed shooting device of digital still camera

摘要

The present invention relates to a high-speed photographing apparatus for a digital still camera capable of high-speed continuous photographing by variably selecting the size of an image to be captured.;Conventional digital still cameras have a problem in that continuous high-speed shooting is difficult because the image capture on-size is fixed in ASIC and the time required for compression takes a long time according to the use of JPEG.;In order to solve this problem, the present invention provides an imaging apparatus comprising: an imaging tube for converting an optical signal of a subject through a lens unit into an imaging image signal; An interrelated sampling and gain controller for sampling a captured image signal of an area of each screen captured from an image pickup tube, controlling the gain to convert it into a luminance signal, and outputting it as a digital signal; A digital signal processor for processing the digital signal obtained through the correlation sampling and gain control and outputting the digital signal as a video signal; An image capturing unit capturing a digital image signal processed by the digital signal processing unit at a predetermined one of a plurality of captured image sizes; A first memory unit for storing an image captured by the image capture unit; A compression unit for compressing the captured image read from the first memory unit at a predetermined compression rate; A second memory unit for storing the compressed image captured by the compression unit; And a control unit for controlling the capturing operation of the image capturing unit by selecting one of the continuous capturing mode and the arbitrary one of the captured image sizes corresponding to the continuous shutter key input.