Patent Number:
8,792,562
Title:
Moving image encoding apparatus and method for controlling the same
Abstract:
The invention provides encoded moving image data having good image quality even in a scene having a high difficulty level. A unit counts a number of pictures to determine a break between scenes. A unit encodes block by block in an inputted picture. A unit calculates a block distortion between a decoded picture and a picture before being encoded. A unit calculates a surplus encoded data amount with respect to an encoded data amount equally allocated to each scene from the encoded data amount of each picture and a preset sequence target bit rate. A target encoded data amount is calculated based on an average block distortion of a scene and the surplus encoded data amount. The encoded data amount of the first picture of a scene is compared with a threshold, and the initial parameter is corrected to determine the parameter for encoding the second and subsequent pictures.
Inventors:
Otsuka; Katsumi (Kawasaki, JP)
Assignee:
Canon Kabushiki Kaisha
International Classification:
H04N 7/12 (20060101)
Expiration Date:
7/29/12018