Lg Electronics Inc.

Soongsil University

Seong-Soo Lee

Yoo-jin Choi

Young-Gie Kim

Jong-Bae Lee

Dong-Hoon Yi

Jeong-Suk Yoon

Su-Uk Choe

Yie-Bin Kim

Jei-Hun Lee

Seung-Min Baek

Sang-Ik Na

An inverse transform method and apparatus for a video codec are disclosed. The inverse transformer can include: a first inverse transform unit configured to perform an inverse transform operation on an even column portion of a 2n&#xd7;2n block or an n&#xd7;n block sharing inverse transform coefficients; and a second inverse transform unit configured to store coefficients according to a first input mode and a second input mode and configured to select coefficients according to input mode and multiply the selected coefficients with an input value to perform an inverse transform of an odd column portion of a 2n&#xd7;2n block or an n&#xd7;n block.

Inverse transform method and apparatus for video codec

Disclosed are a mobile robot with a single camera capable of performing a cleaning process with respect to surroundings, and capable of more precisely making a 3D map of the surroundings including a plurality of feature points, and a method for recognizing 3D surroundings of the same. According to the method, images of the surroundings are captured, and a preset number of particles with respect to feature points of a first image are projected to a second image based on matching information of feature points extracted from the two images sequentially captured, thereby extracting 3D information of the surroundings.

Mobile robot with single camera and method for recognizing 3D surroundings of the same

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Seoul, South Korea

Seong-Soo Lee