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Image display apparatus, signal processing apparatus, image processing method, and computer program product

An image display device and signal technology, applied in image communication, static indicators, standard conversion, etc., to achieve the effect of suppressing blurring, reducing blurring, and faithful playback

Inactive Publication Date: 2007-11-14
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the user has to watch content partially replaced by pseudo pixel values, which is annoying for users who want a faithful playback of the original content

Method used

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  • Image display apparatus, signal processing apparatus, image processing method, and computer program product
  • Image display apparatus, signal processing apparatus, image processing method, and computer program product
  • Image display apparatus, signal processing apparatus, image processing method, and computer program product

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Embodiment Construction

[0047] Details of an image display device, a signal processing device, an image processing method, and a computer program product according to embodiments of the present invention are described below with reference to the accompanying drawings. where descriptions are given in the following order.

[0048] 1. Fuzzy phenomenon

[0049] 2. IP conversion

[0050] 3. Device configuration and processing details

[0051] 1. Fuzzy phenomenon

[0052] The blurring phenomenon that occurs in a frame hold type display such as a liquid crystal display is first discussed below. As described above, in the frame hold type display device, there occurs a blurring phenomenon in which a moving object to be displayed appears blurred, that is, a motion blur caused by a residual image remaining on the retina. This phenomenon is discussed below with reference to FIG. 1 .

[0053] When observing a moving object in a moving picture displayed on a display, the observer smoothly follows the feature ...

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PUM

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Abstract

An image display apparatus includes the following elements. An IP converter performs signal conversion processing for converting an interlace signal into a progressive signal including information on interpolated pixels. A frame controller temporally divides an input image frame to generate a plurality of sub-frames. A high-frequency-enhanced sub-frame generator and a high-frequency-suppressed sub-frame generator perform filtering processing on the sub-frames to generate high-frequency-enhanced sub-frames and high-frequency-suppressed sub-frames, respectively. A first output controller alternately outputs the high-frequency-enhanced sub-frames and the high-frequency-suppressed sub-frames. A gain controller adjusts an output level of the sub-frames. A second output controller receives an output from the first output controller and an output from the gain controller to output an output-level-adjusted signal as a signal corresponding to the interpolated pixels and outputs an output-level non-adjusted signal as an original pixel signal. A display unit performs frame-hold-type display processing and alternately displays the high-frequency-enhanced sub-frames and the high-frequency-suppressed sub-frames.

Description

technical field [0001] The present invention generally relates to an image display device, a signal processing device, an image processing method, and a computer program product. More particularly, the present invention relates to an image display device capable of converting an interlaced signal into Interlace progressive (IP) conversion of progressive signals to reduce blurring. The invention also relates to a signal processing device, an image processing method, and a computer program product for use in an image display device. Background technique [0002] In display processing using a flat panel display (FPD) using organic electroluminescence (EL) or liquid crystal (LC), unlike a cathode ray tube (CRT) that uses dot-sequential pulses to drive the display, Execute frame hold type display. That is, in a typical FPD operation, for example, at a frame frequency of 60 Hz, the same image is continuously displayed (held) on the entire display screen during each display peri...

Claims

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Application Information

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IPC IPC(8): G09G3/36G09G3/20
CPCG09G2320/0257G09G3/20G09G2310/0229G09G2320/0261H04N7/01H04N5/208
Inventor 武昌宏小菅庄司
Owner SONY CORP