Image capture method and image capture system thereof

摘要

With the aid of separating data paths for generating preview frames, for generating video frames, and for generating encoded camera frames of an image fetching system in a concurrent and mutually-independent manner, the image fetching system is free from introducing unnecessary shutter lags.

主权项

1. An image capture apparatus, comprising:
an image sensor module, configured to capture a plurality of original images in a continuous manner; an image signal processor, configured to concurrently generate a plurality of preview frames and a first plurality of camera frames from the plurality of original images; and a backend processing unit, comprising:
a preview module, configured to receive the plurality of preview frames through a first data path for display;a video processing unit, configured to encode the plurality of preview frames received through a second data path to generate a plurality of video frames in response to a video recording command;a camera buffer, configured to buffer the first plurality of camera frames received through a third data path;an image encoding unit, configured to encode the first plurality of camera frames to generate a second plurality of camera frames in response to an image capturing command; anda memory, configured to store the plurality of video frames and the second plurality of camera frames; wherein when the image capture command is received during execution of the video recording command, the video processing unit processes the plurality of preview frames to encode the plurality of video frames at the same time as the image encoding unit processes the first plurality of camera frames to encode the second plurality of camera frames; wherein the first data path, the second data path, and the third data path are operated by the image capture apparatus in parallel.