Realtek Semiconductor Inc.

Bing-Jhe Chen

Po-Wei Chao

Ching-Hua Chang

A method and related apparatus for restraining erroneous image colors are provided for correcting pixel values of three sequential image fields of a video data while de-interlacing the video data. The method is utilized to correct the video data by detecting whether penetrations from luminance signals into chrominance signals or penetrations from chrominance signals into luminance signals occur in the video data. In embodiments of the present invention, the pixel chrominance signals of image fields with the same polarity are utilized to correct the pixel chrominance signals of another image field. Pattern matching and edge detection are utilized to determine whether penetrations from chrominance signals into luminance signals occur.

Method and apparatus for restrainng erroneous image colors

A phase detection apparatus includes: a motion detector, for determining whether an image data corresponds to a still image data; an image characteristic detector, coupled to the motion detector, for detecting a characteristic image data having cross color phenomenon when the image data corresponds to a still image data; a phase testing module, coupled to the image characteristic detector, for processing the characteristic image data according to a plurality of phases to obtain a plurality of testing results; and a phase determining module, for selecting a phase from the plurality of phases according to the plurality of testing results.

Phase detection apparatus and related phase detecting method

The present invention discloses a video processing apparatus. The video processing apparatus includes a smooth detecting module and a video processing module. The smooth detecting module categorizes a target position in a target image of a video data as a smooth position or a non-smooth position to generate a categorizing result. The video processing module performs at least one of a plurality of video processing operations upon the target position according to the categorizing result.

Video processing method and apparatus based on smooth detection

A field balancing device for balancing the lightness/color of top fields and bottom fields of an interlaced signal includes: a detection circuit for detecting a lightness/color difference between at least one portion of at least one top field of the interlaced signal and at least one portion of at least one bottom field of the interlaced signal to generate a detection result; and a processing circuit, coupled to the detection circuit, for selectively processing at least one field of the interlaced signal according to the detection result to balance the lightness/color of top fields and bottom fields of the interlaced signal.

Field balancing device and method

A system that automatically adjusts a threshold value of cross color suppression and a method thereof are disclosed. The system includes a cross color suppression unit, a statistical unit and an adjustment unit. The cross color suppression unit is for receiving input video data and searching a plurality of cross color dots thereof. According to a threshold value, the cross color suppression unit determines whether the cross color dot is static or dynamic, suppresses the static cross color dot and then generates an output video data. The method used by the present invention is, the statistical unit calculates residual cross color amount of the output video data that has been suppressed. Then, the adjustment unit compares the cross color amount of the output video data with a reference value so as to send a corresponding adjustment signal to the cross color suppression unit to adjust the threshold value.

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Miao-Li Hsien, Taiwan

Bing-Jhe Chen