Apparatus and method for converting 2D image signals into 3D image signals

Abstract

Disclosed are an apparatus and method for converting 2D input image signals into 3D stereoscopic image signals and outputting the converted 3D stereoscopic image signals. According to the method of converting image signals according to an embodiment of the present inventive concept, first, motion information about a current frame that is 2D input image signals is acquired, and then a motion type of the current frame is determined using the acquired motion information. As a result of the determination, if the motion type of the current frame is a horizontal motion frame, it is determined whether the current frame is a scene change frame. If the current frame is the horizontal motion frame and is not the scene change frame, 3D output image signals are generated using a current image and a delayed image. If the current frame is not the horizontal motion frame, or if the current frame is the horizontal motion frame and the scene change frame, a depth map is applied to the current image and 3D output image signals are generated. In this case, the depth map is acquired using the horizontal boundary and a difference in a sense of depth according to a vertical location to embody a stereoscopic image.

Description

technical field [0001] The present invention relates to an apparatus for converting an image signal, and more particularly, to an apparatus and method for converting a two-dimensional image signal into a three-dimensional image signal. Background technique [0002] Recently, as three-dimensional (3D) stereoscopic images attract more attention, various stereoscopic image capturing devices and display devices are under development. A stereoscopic image signal for displaying a stereoscopic image can be obtained by capturing the stereoscopic image signal using a left and right camera pair. This method is suitable for displaying natural stereoscopic images, but requires the use of two cameras to capture the images. Additionally, there will be issues when capturing or encoding the captured left and right images, which need to address the different frame rates of the left and right images. [0003] It is also possible to acquire a stereoscopic image signal by converting a two-dim...

AI Technical Summary

Problems solved by technology

However, in this method, one frame must be selected from the previous frames as the delayed image

Therefore, various characteristics of the regions contained in a frame are not fully taken into account, such as differences in perspective perception, differences in motion orientation and / or speed of motion, or differences in brightness and color

Therefore, this method is not suitable for displaying natural and stable stereoscopic images

Images