发明名称 |
CONTENT-BASED ASPECT RATIO DETECTION |
摘要 |
A system for determining an aspect ratio of image content based on an analysis of the content. In an embodiment, an analyzer is configured to receive a data input corresponding to an image in a stream of images that constitute a video sequence of images. The analyzer is further configured to determine a mathematical representation of the image content based on a power spectrum analysis of vertical components of the image in comparison to a power spectrum analysis of horizontal components of the image. Based on this comparison of the vertical frequency components to the horizontal frequency components, a determination about the original aspect ratio of the image may be determined. This determination may be used by a video processor to correctly apply aspect ratio conversion for final image output. |
申请公布号 |
US2014294307(A1) |
申请公布日期 |
2014.10.02 |
申请号 |
US201313851807 |
申请日期 |
2013.03.27 |
申请人 |
STMICROELECTRONICS ASIA PACIFIC PTE, LTD. |
发明人 |
HUANG Yong;HUI Lucas |
分类号 |
G06K9/46 |
主分类号 |
G06K9/46 |
代理机构 |
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代理人 |
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主权项 |
1. A circuit, comprising:
a receiver for receiving an image having content; and a calculator for calculating an aspect ratio of the image based on the content of the received image. |
地址 |
Singapore SG |