TWI392336B - Apparatus and method for motion adaptive de-interlacing with chroma up-sampling error remover - Google Patents

Description

Dynamic adaptive deinterlacing device and method with CUE remover

The present invention relates to a device and method for detecting motion, and more particularly to a dynamic adaptive deinterlacing device and method having a chroma up-sampling error (CUE) remover.

In general, motion detection uses the difference of the target pixels in the same parity field (The Same Parity Field) to determine whether the target pixels are moving. When the difference is greater than a pre-set threshold (Threshold), it means that there is a variation in the content of the movie, so that the corresponding pixel is determined to be a moving pixel; and when the difference is less than the threshold , indicating that there is no generation of variation, and therefore, it is determined that the corresponding pixel is a still pixel.

Through the above motion detection method, the mobile information in the moving object can be obtained to provide a reference to see whether spatial interpolation or temporal interpolation (Temporal Interpolation) is used to obtain the required field data. . The difference is that the time interpolation method is used to calculate the pixel value of the area without moving objects; and the spatial interpolation method is used to calculate the pixel value of the moving object area.

On the other hand, in order to reduce the video image size, the color components in the video are usually compressed into a 4:2:0 sampling format. In particular, based on the characteristics of the human eye that are insensitive to color components, the color components in the video material are typically downsampled, leaving only part of the color information. Common downsampling formats include the 4:2:2 sampling format, the 4:1:1 sampling format, and the 4:2:0 sampling format.

Taking a pixel containing R, G, and B color components as an example, in the process of reducing the sampling by 4:2:2, the R, G, and B color components of the pixel are equivalently converted into the luminance Y and the color component U and V, and the sampling interval of the pixel color component is twice. That is, only one pixel of the color component will be sampled and used in every two pixels.

However, when the video that is compressed into the 4:2:0 sampling format is subjected to three-dimensional deinterleaving, if the color components of the corresponding pixels in the front field and the still field of the subsequent field are combined for display, A chroma up-sampling error (CUE) is generated.

FIG. 1 illustrates a chroma lifting sampling error generated when performing deinterleaving processing. Referring to FIG. 1 , when de-interlacing a progressive image having an image size of 8×8, the scan line is divided into an odd field and an even field, wherein the odd field includes a plurality of odd scan lines of the progressive field. And the even field contains a plurality of even scan lines of the progressive field, and the pixels represent a plurality of color pixels in shaded blocks. Then, when 4:2:0 downsampling is simultaneously performed on the odd field and the even field, the data of one of each of the two scanning lines is retained and sampled and used as the data of the two scanning lines. To further reduce the image size of the original field. However, when the two odd-field and even-map fields that have been downsampled are deinterleaved, the scan lines of the odd field and the scan lines of the even field are alternately sampled to restore the field. As shown in the third portion of FIG. 1, the color pixels are misplaced such that the edges of the colored regions of the restored image appear jagged.

In order to solve the above problem of chromaticity-increasing sampling error, the conventional technique utilizes a low-pass filter for lifting sampling, but this method blurs the contour of the field with significant color differences. In order to completely solve such a problem, it is necessary to replace the components of the pixels in the color field of the front field and the back field, as shown in the fourth part of FIG. In more detail, the components of the pixels in the odd field will be replaced with the components of the pixels in the next field, and the components of the pixels in the even field will be replaced with the components of the pixels in the previous field.

However, since the motion detector must use the same parity field, the dynamic adaptive deinterleaving technique processes data requiring at least three fields to accurately detect the still region and the moving region. If you want to remove the chrominance upsampling error in the input fields to facilitate motion detection, you need at least five fields of data, which will consume a lot of buffers.

The present invention provides a dynamic adaptive de-interlacing device with a chroma up-sampling error (CUE) remover that can relatively reduce the use of buffers.

The invention provides a dynamic adaptive deinterlacing method with a chroma lifting sampling error remover, which can obtain correct deinterlaced field data only based on three adjacent fields.

The invention provides a dynamic adaptive deinterlacing device with a chroma lifting sampling error remover, which comprises a motion detector, a first chroma lifting sampling error remover, and a second chroma lifting sampling error shift. A divider, a deinterlacing unit, a selector, and a merging unit. The motion detector is configured to receive data of a current field, a front field, and a back field, and determine whether a pixel between the first scan line and the third scan line in the current field is a moving pixel or Still pixels. The first chrominance up sampling error remover is configured to receive data of the current field and the front field, and remove chrominance up sampling error of one of the second scan lines in the front field, wherein the second scan line is located at the first Between the scan line and the third scan line. The second chrominance upsampling error remover is configured to receive data of the front field, the current field, and the back field, and remove chrominance up sampling errors of the first scan line and the third scan line in the current field. The deinterleaving unit is coupled to the second chrominance up sampling error remover, and configured to receive the data of the processed first scan line and the third scan line, and perform interpolation processing by using the first scan line and the third scan line A de-interlaced second scan line is obtained. The selector is coupled to the motion detector, the first chrominance upsampling error remover, and the deinterlacing unit, wherein the selector selects the first chrominance to increase the sampling error according to a motion detection result of the motion detector. The output data of the remover or the output data of the deinterleaving unit is used as the data of the second scan line. The merging unit is coupled to the second chrominance upsampling error remover and the selector for combining the first scan line output by the second chrominance up sampling error remover and the second scan line output by the selector to Output two scan lines of an output field.

In an embodiment of the present invention, the motion detector determines whether the pixel between the first scan line and the third scan line in the current field is a moving pixel or according to multiple differences between two adjacent fields. Still pixels.

In an embodiment of the invention, the motion detector determines the moving pixel or the still pixel based on the difference between the two adjacent fields.

In an embodiment of the invention, if the motion detector detects that the pixel between the first scan line and the third scan line in the current field is a still pixel, the selector selects the first chrominance to increase the sampling error removal. The output data of the device is used as the data of the second scan line.

In an embodiment of the invention, if the motion detector detects that the pixel between the first scan line and the third scan line in the current field is a moving pixel, the selector selects the output data of the deinterlacing unit as the second Scan line information.

In an embodiment of the invention, if the chrominance up sampling error of the second scan line is detected, the first chrominance up sampling error remover detects the chrominance boost sampling of the second scan line in the front field. The error is substituted for the color component of the second scan line in the front field and the color component of the first scan line or the third scan line in the current field.

In an embodiment of the invention, if the chrominance up sampling error of the first scan line is detected, the second chrominance up sample error remover detects the chrominance upsampling of the first scan line in the current field. The error is substituted for the color component of the first scan line in the current field and the color component of the previous scan line or the second scan line of the first scan line in the back image field.

In an embodiment of the invention, if the chrominance up sampling error of the third scan line is detected, the second chrominance up sample error remover detects the chrominance upsampling of the third scan line in the current field. The error is substituted for the color component of the third scan line in the current field and the color component of the next scan line of the second scan line or the third scan line in the subsequent field.

The present invention provides a dynamic adaptive deinterlacing method with a chrominance upsampling error remover that includes the following steps. First, it is determined whether a pixel between one of the first scan line and the third scan line in the current field is a moving pixel or a still pixel. Removing a chrominance up sampling error of one of the second scan lines in a previous field, and removing chrominance up sampling errors of the first scan line and the third scan line in the current field, wherein the second scan line is located Between the first scan line and the third scan line. Then, interpolation processing is performed using the first scan line and the third scan line to obtain a deinterleaved second scan line. Determining, according to a determination result of whether the pixel between the first scan line and the third scan line in the current field is a moving pixel or a still pixel, to select a second scan line having the removed chroma to increase the sampling error Or deinterlacing the data of the second scan line as the data of the second scan line. Then, the first scan line having the removed chroma upsampling error and the selected second scan line are combined to output two scan lines of an output field.

In an embodiment of the present invention, the determination result of whether the pixel between the first scan line and the third scan line in the field is a moving pixel or a still pixel is based on a plurality of differences between two adjacent fields. .

In an embodiment of the present invention, according to the determination result of whether the pixel between the first scan line and the third scan line in the current field is a moving pixel or a still pixel, the chromaticity lifting sampling with the removed color is selected. The step of the error of the second scan line or the data of the deinterlaced second scan line as the data of the second scan line includes the following steps: if the pixels of the first scan line and the third scan line in the current field are determined as For the still pixel, the data of the second scan line having the removed chroma up sampling error is selected as the data of the second scan line; on the other hand, if the first scan line and the third scan line in the current field are When the pixel is determined to be a moving pixel, the data of the second scan line that is deinterleaved is selected as the data of the second scan line.

In an embodiment of the present invention, the step of removing the chrominance up sampling error of the second scan line in the front field is: detecting the chrominance up sampling error of the second scan line in the front field, if When the chrominance up sampling error of the two scan lines is detected, the color component of the second scan line in the front field and the color component of the first scan line or the third scan line in the current picture field are replaced.

In an embodiment of the present invention, the step of removing the chrominance up sampling error of the first scan line in the current field is: detecting a chrominance up sampling error of the first scan line in the current field, if When the chroma error of a scan line is detected, the color component of the first scan line in the current field and the color component of the previous scan line or the second scan line of the first scan line in the back field are detected. Perform the replacement.

In an embodiment of the present invention, the step of removing the chrominance up sampling error of the third scan line in the current field is: detecting the chrominance up sampling error of the third scan line in the current field, if When the chrominance of the three scan lines is detected, the color component of the third scan line in the current field and the color component of the next scan line of the second scan line or the third scan line in the subsequent field are detected. Perform the replacement.

In the present invention, two chrominance up-sampling error (CUE) removers are used to remove the current gamut and the chrominance-increasing sampling error in the front field, respectively, and perform motion detection on the target scan line. The obtained motion detection result is obtained by the time interpolation method or the spatial interpolation method. Thus, the present invention can obtain correct deinterlaced field data based on only three adjacent fields and reduce the amount of buffer used.

The above described features and advantages of the present invention will be more apparent from the following description.

In general, the data used by motion adaptive de-interlacing can be obtained by spatial interpolation or temporal interpolation. In order to solve the chroma up-sampling error generated in the process of deinterlacing with a minimum of buffers, the present invention only uses the time interpolation method to replace the data of the former field with the data of the previous field and The average value of the back field data, so the use of the buffer can be relatively reduced. Further, in order to make the invention more apparent, the specific embodiments are described in detail below.

2 is a block diagram of a dynamic adaptive deinterlacing apparatus according to an embodiment of the present invention. Referring to FIG. 2, the dynamic adaptive deinterlacing apparatus 200 of the present embodiment includes a motion detector 202, a first chrominance lifting sampling error remover 204, and a second chrominance lifting sampling error remover 206. A deinterleaving unit 208, a selector 210, and a merging unit 212 are provided. Next, the functions of the respective members described above will be described in the following embodiments.

The motion detector 202 receives data of a current picture field, a front picture field, and a back picture field, and determines whether the pixels of the first scan line and the third scan line in the current picture field are moving pixels or still pixels. . Specifically, the first scan line and the third scan line are adjacent scan lines in the current field, and the second scan line between the two scan lines is transmitted through spatial interpolation or time interpolation. A target scan line is obtained. In detail, if the pixels in the second scan line are determined to be moving pixels, the data can be obtained by spatially interpolating the first scan line and the third scan line in the current picture field. On the other hand, if the pixels in the second scan line are determined to be still pixels, the data can be obtained by time-interpolating the corresponding second or scan lines in the previous or subsequent fields.

For example, FIG. 3 is a schematic diagram of a method for spatial interpolation processing and time interpolation processing using data of three adjacent fields according to an embodiment of the present invention. Referring to FIG. 3, it is assumed that a pixel P of one of the scanning lines B in the current field F_current is a designated pixel calculated by spatial interpolation or temporal interpolation. If the pixel P is determined to be a moving pixel, spatial interpolation may be employed to interpolate the pixel P1 of the scanning line A in the current field F_current and the pixel P2 of the scanning line C in the current field F_current to obtain Pixel P. Conversely, if the pixel P is determined to be a still pixel, time interpolation may be employed to compare the pixel P1 of the scanning line B in a front field F_previous and the pixel P2 of the scanning line B in a subsequent field F_next. 'Interpolation processing is performed to obtain the pixel P.

Then, according to the plurality of differences between the two adjacent fields, the motion detector 202 can determine whether the pixels of the first scan line and the third scan line in the current field are moving pixels or still pixels, wherein the motion detector The detector 202 can determine a moving pixel or a still pixel based on a plurality of differences between two adjacent fields.

In this embodiment, the data of the adjacent three fields is used to perform motion detection. However, since the dynamic adaptive deinterlacing technique requires data interpolated from a two-dimensional field or pixel data in a corresponding position in the front field (time interpolation), spatial interpolation is used. As a result, the brightness and color component data or the data of the front field should be completely correct so that the motion detector can perform the action correctly. In this way, before performing the deinterlacing operation, the chroma lifting sampling error remover needs to remove the chroma lifting sampling error in the front field, the current field, and the back field first.

In order to perform time interpolation processing, the data of the front field F_previous should be correct and the chrominance sampling error existing between them should be removed. Therefore, the first chrominance upsampling error remover 204 receives the data in the current field F_current and the front field F_previous, and further removes the chrominance up sampling error of the second scan line in the previous field F_previous. In general, the chroma lifting error in the front field F_previous is removed from the data in the previous and subsequent fields. However, the dynamic adaptive deinterlacing process only uses the data of one of the static fields in the front field. If the content of the front field F_previous is static, the data of the front field and the back field are completely the same. Thus, the next field of the previous field F_previous (ie, the current field F_current) needs to be replaced with the previous field F_previous to obtain the correct color component in the front field F_previous'.

For example, FIG. 4 is a schematic diagram of a method for removing a chrominance upsampling error of a scan line in a front field in accordance with an embodiment of the present invention. Referring to FIG. 4, it is assumed that the scanning line B in the front field F_previous is a still area. When the chroma up sampling error is removed, the scan line B in the front field F_previous is replaced with the scan line A or the scan line C in the current picture field F_current.

In order to perform a two-dimensional deinterlacing (2DDI) process, that is, spatial interpolation processing, the data in the current field F_current should be correct and the chrominance up sampling error existing therebetween should also be removed. In this embodiment, the second chrominance upsampling error remover 206 receives the data in the current field F_current and the back field F_next, and removes the first scan line and the third scan line in the current field F_current. Chromaticity increases sampling error. In detail, before the two-dimensional deinterlacing process, the erroneous color component in the current field F_current should be replaced with the color component in the front field F_previous or the back field F_next to obtain the current field F_current'. The correct color component.

In more detail, the second chrominance up sampling error remover 206 detects the chrominance up sampling error of the first scan line in the current field F_current, and if the chrominance up sampling error of the first scan line is detected, At present, the color component of the first scan line in the field F_current is replaced by the second chrominance up sample error remover 206 and the previous scan line of the first scan line in the front field F_previous or the back field F_next. Or the color component of the second scan line is replaced. In addition, the second chrominance up sampling error remover 206 also detects the chrominance up sampling error of the third scan line in the current field F_current, and if the chrominance up sampling error of the third scan line is detected, currently The color component of the third scan line in the field F_current will pass through the second chrominance up sample error remover 206 and the next line of the second scan line or the third scan line in the front field F_previous or the back field F_next The color component of the scan line is replaced.

For example, FIG. 5 is a schematic diagram of a method for removing chrominance upsampling errors of scan lines in a current field according to an embodiment of the invention. Referring to FIG. 5, it is assumed that the scanning line A and the scanning line C in the current field F_current are a still area. When the chrominance up sampling error is removed, the scan line A in the current field F_current may be replaced with the scan line D or the scan line B in the front field F_previous; or, the scan line in the back field F_next D or scan line B is replaced with each other. Further, the scanning line C in the current field F_current may be mutually replaced with the scanning line B or the scanning line E in the front field F_previous; or, the scanning line B or the scanning line E in the rear image field F_next may be replaced with each other.

In the present embodiment, the data in the current field F_current' is output from the second chrominance upsampling error remover 206 and further input to the deinterleaving unit 208 for deinterleaving. More specifically, the deinterleaving unit 208 receives the data of the processed first scan line and the third scan line in the current field F_current', and performs interpolation processing using the first scan line and the third scan line. The second scan line deinterlaced in the current field F_current' is obtained.

The selector 210 receives the movement information output by the motion detector 202, the data of the correct previous field F_previous', and the data of the current field after the two-dimensional deinterleaving process F_2DDI, and according to a movement of the motion detector 202 The result of the detection is used to adaptively select the output data of the first chrominance upsampling error remover 204 or the deinterleaving unit 208 as the data of the second scan line in the current field. In more detail, if the motion detector 202 detects that the pixel between the first scan line and the third scan line in the current field F_current is a still pixel, the selector 210 selects the first chrominance to increase the sampling error shift. The output data of the divider 204 is used as the data of the second scan line. On the other hand, if the motion detector 202 detects that the pixel between the first scan line and the third scan line in the current field F_current is a moving pixel, the selector 210 selects the output data of the deinterleaving unit 208 as the first Two scan line data.

In this embodiment, the merging unit 212 combines the first scan line output by the second chrominance up-sampling error remover 206 and the second scan line output by the selector 210 to output two scan lines of an output field. . The above deinterleaving process will be repeated until all the scan lines in the current field F_current are processed and output, and finally a substantially complete deinterlaced output field can be obtained.

It should be noted that based on the above structure of the dynamic adaptive deinterlacing device, the present invention provides a corresponding method for dynamic adaptive deinterlacing. Next, it will be further explained in the following examples.

6 is a schematic diagram of a method for performing dynamic adaptive deinterlacing processing using a chroma lifting sampling error remover according to an embodiment of the present invention. Referring to FIG. 6, when de-interlacing processing is performed on a scan line (for example, a first scan line, a second scan line, and a third scan line) of a group of three adjacent scan lines, the embodiment first removes the previous figure. The chromaticity of the second scan line in the field increases the sampling error (S602). Specifically, in step S602, the chrominance up sampling error of the second scan line in the previous field is detected, and if the detection is improved, the sampling error is increased, and the color of the second scan line in the front field is detected. The component is replaced with the color component of the first scan line or the third scan line in the current field.

Next, the chrominance up sampling error of the first scan line and the third scan line in the current field is removed (S604). Similarly, in step S604, the chrominance up sampling error of the first scan line in the current field will be detected. If the detection accuracy improves the sampling error, the color of the first scan line in the current field is detected. The component is replaced with the color component of the previous scan line or the second scan line of the first scan line in the subsequent field. In addition, the chrominance up sampling error of the third scan line in the current field will also be detected. If the detection accuracy improves the sampling error, the color component of the third scan line in the current field will be compared with the latter field. The color components of the second scan line or the next scan line of the third scan line are replaced with each other.

After removing the chromaticity increase sampling error described above, the first scan line and the third scan line in the current field are deinterleaved to obtain a deinterleaved second scan line (S606). Then, it is determined whether a plurality of pixels between the first scan line and the third scan line in the current field are moving pixels or still pixels (S608). In detail, according to the plurality of differences between the two adjacent fields, the determination result of whether the pixel between the first scan line and the third scan line in the current field is a moving pixel or a still pixel is obtained, wherein The above difference means the difference in brightness between two adjacent fields.

Thereafter, the above determination result is used to select the second scan line having the removed chrominance up sampling error or the data of the deinterleaved second scan line as the data of the second scan line for output (S610). In more detail, if the pixel between the first scan line and the third scan line in the current field is determined to be a still pixel, the data of the second scan line having the removed chrominance up sampling error is Selected as the data of the second scan line. However, if the pixel between the first scan line and the third scan line in the current field is determined to be a moving pixel, the data of the deinterleaved second scan line is selected as the data of the second scan line.

Then, the first scan line having the removed chroma up sampling error and the selected second scan line are merged to output two scan lines of an output field (S612). The deinterlacing process described above is repeated until all the scan lines in the current field are processed and output, thus finally obtaining a complete deinterlaced output field.

In summary, the present invention provides a dynamic adaptive deinterlacing device having a chroma lifting sampling error remover and a method thereof, wherein brightness of pixels in adjacent fields is used to determine a moving region and a still region, and The color components of the scan lines in adjacent fields can be replaced to remove the chrominance upsampling errors that exist between them. In this way, the correct deinterlaced field data can be obtained only by three adjacent fields, thereby reducing the use of the buffer.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

200. . . Dynamic adaptive deinterlacing device

202. . . Motion detector

204. . . First chrominance boost sampling error remover

206. . . Second chrominance boost sampling error remover

208. . . Deinterlacing unit

210. . . Selector

212. . . Merging unit

A, B, C, D, E. . . Scanning line

F_2DDI. . . Two-dimensional deinterlacing

F_current, F_current', F_next, F_previous, F_previous’. . . Field

P, P1, P1', P2, P2'. . . Pixel

S602, S604, S606, S608, S610, S612. . . step

FIG. 1 illustrates a chroma lifting sampling error generated when performing deinterleaving processing.

2 is a block diagram of a dynamic adaptive deinterlacing apparatus according to an embodiment of the present invention.

3 is a schematic diagram of a method for spatial interpolation processing and time interpolation processing using data of three adjacent fields according to an embodiment of the present invention.

4 is a schematic diagram of a method for removing a chrominance upsampling error of a scan line in a front field in accordance with an embodiment of the present invention.

FIG. 5 is a schematic diagram of a method for removing a chrominance upsampling error of a scan line in a current field according to an embodiment of the invention.

6 is a schematic diagram of a method for performing dynamic adaptive deinterlacing processing using a chroma lifting sampling error remover according to an embodiment of the present invention.

200. . . Dynamic adaptive deinterlacing device

202. . . Motion detector

204. . . First chrominance boost sampling error remover

206. . . Second chrominance boost sampling error remover

208. . . Deinterlacing unit

210. . . Selector

212. . . Merging unit

F_2DDI. . . Two-dimensional deinterlacing

F_current, F_current', F_next, F_previous, F_previous’. . . Field

Claims (16)

A dynamic adaptive deinterlacing device with a chroma lifting sampling error remover, comprising: a motion detector for receiving data of a current field, a front field and a back field, and determining the current Whether the pixel between the first scan line and the third scan line in the field is a moving pixel or a still pixel; a first chrominance up sampling error remover for receiving the current picture field and the previous picture Field data, and removing a chrominance up sampling error of one of the second scan lines in the front field, wherein the second scan line is between the first scan line and the third scan line; a second color And increasing the sampling error remover for receiving the data of the front field, the current field, and the subsequent field, and removing the color of the first scan line and the third scan line in the current field The sampling error is increased; a de-interlacing unit is coupled to the second chrominance-up sampling error remover, and configured to receive the processed data of the first scan line and the third scan line, and utilize the first scan line And the third scan line is carried out Processing to obtain a deinterlaced second scan line; a selector coupled to the motion detector, the first chroma upsampling error remover, and the deinterlacing unit, wherein the selector is based on the motion detector a motion detection result, and selecting the output data of the first chrominance up sampling error remover or the output data of the deinterleaving unit as data of the second scan line; a merging unit coupled to the second chrominance upsampling error remover and the selector for combining the first scan line output by the second chrominance upsampling error remover and the output of the selector The second scan line is to output two scan lines of an output field. The dynamic adaptive deinterlacing device with a chroma lifting sampling error remover according to claim 1, wherein the motion detector determines the current picture according to a plurality of differences between two adjacent fields. Whether the pixel between the first scan line and the third scan line in the field is a moving pixel or a still pixel. The dynamic adaptive deinterlacing device with a chroma lifting sampling error remover according to claim 2, wherein the motion detector determines a moving pixel or a still pixel according to a difference in brightness between two adjacent fields. . The dynamic adaptive deinterlacing device with a chroma lifting sampling error remover according to claim 1, wherein the motion detector detects the first scanning line in the current field and the first The pixel between the three scan lines is a still pixel, and the selector selects the output data of the first chroma up sample error remover as the data of the second scan line. The dynamic adaptive deinterlacing device with a chroma lifting sampling error remover according to claim 1, wherein the motion detector detects the first scanning line in the current field and the first The pixel between the three scan lines is a moving pixel, and the selector selects the output data of the deinterleaving unit as the data of the second scan line. A dynamic adaptive deinterlacing device having a chroma lifting sampling error remover according to claim 1, wherein the second scanning line The chrominance up sampling error is detected, and the first chrominance up sampling error remover detects a chrominance up sampling error of the second scan line in the previous field, and the The color component of the second scan line and the color component of the first scan line or the third scan line in the current field are replaced. The dynamic adaptive deinterlacing device with a chroma lifting sampling error remover according to claim 1, wherein the second chroma is improved if the chroma detection error of the first scanning line is detected. The sampling error remover detects a chrominance up sampling error of the first scan line in the current field, and a color component of the first scan line in the current field and the front or the back image The color component of the previous scan line or the second scan line of the first scan line in the field is replaced. The dynamic adaptive deinterlacing device with a chroma lifting sampling error remover according to claim 1, wherein the second chroma is improved if the chroma error of the third scan line is detected. a sampling error remover detects a chrominance up sampling error of the third scan line in the current field, and a color component of the third scan line in the current field and the front or the back image The color component of the second scan line in the field or the next scan line of the third scan line is replaced. A dynamic adaptive deinterlacing method with a chroma lifting sampling error remover, comprising: determining whether a pixel between a first scan line and a third scan line in a current field is a moving pixel or a still pixel; Remove the chrominance sampling error of one of the second scan lines in a previous field Poor, wherein the second scan line is located between the first scan line and the third scan line; removing the chrominance up sampling error of the first scan line and the third scan line in the current picture field; The first scan line and the third scan line are interpolated to obtain a deinterleaved second scan line; according to whether the pixel between the first scan line and the third scan line in the current field is a moving pixel Or a result of the determination of the still pixel to select the data of the second scan line having the removed chroma up sample error or the data of the deinterleaved second scan line as the data of the second scan line; and merge The first scan line having the removed chroma up sampling error and the selected second scan line are output to output two scan lines of an output field. The dynamic adaptive deinterleaving method with a chroma lifting sampling error remover according to claim 9, wherein the pixel between the first scanning line and the third scanning line in the current field is The result of the determination for moving pixels or still pixels is based on a plurality of differences between two adjacent fields. The dynamic adaptive deinterleaving method with a chroma lifting sampling error remover according to claim 10, wherein the pixel between the first scanning line and the third scanning line in the current field is The result of the determination for moving pixels or still pixels is based on the difference in brightness between two adjacent fields. The dynamic adaptive deinterleaving method with a chroma lifting sampling error remover according to claim 9 , wherein the pixel between the first scanning line and the third scanning line in the current field is used. Whether the result of the determination of the moving pixel or the still pixel is to select the data of the second scan line having the removed chrominance up sampling error or the data of the deinterleaved second scan line as the second scan line The step of data includes: if the pixels of the first scan line and the third scan line in the current field are determined to be still pixels, selecting the data of the second scan line having the removed chroma up sampling error as The data of the second scan line. The dynamic adaptive deinterleaving method with a chroma lifting sampling error remover according to claim 9 , wherein the pixel between the first scanning line and the third scanning line in the current field is used. Whether the result of the determination of the moving pixel or the still pixel is to select the data of the second scan line having the removed chrominance up sampling error or the data of the deinterleaved second scan line as the second scan line The step of data includes: if the pixels of the first scan line and the third scan line in the current field are determined to be moving pixels, selecting the data of the deinterleaved second scan line as the data of the second scan line. The dynamic adaptive deinterlacing method with a chroma lifting sampling error remover according to claim 9, wherein the step of removing the chroma lifting sampling error of the second scanning line in the front field includes : detecting a chrominance up sampling error of the second scan line in the previous field; and if the chrominance up sampling error of the second scan line is detected, the front The color component of the second scan line in the field and the color component of the first scan line or the third scan line in the current field are replaced. A dynamic adaptive deinterlacing method with a chroma lifting sampling error remover according to claim 9 wherein the step of removing the chrominance up sampling error of the first scan line in the current field comprises : detecting a chrominance up sampling error of the first scan line in the current field; and if the chrominance up sampling error of the first scan line is detected, the first scan line in the current field The color component and the color component of the previous scan line or the second scan line of the first scan line in the subsequent field are replaced. The dynamic adaptive deinterlacing method with a chroma lifting sampling error remover according to claim 9, wherein the step of removing the chrominance lifting sampling error of the third scanning line in the current field includes : detecting a chrominance up sampling error of the third scan line in the current field; and if the chrominance up sampling error of the third scan line is detected, the third scan line in the current field The color component and the color component of the second scan line or the next scan line of the third scan line in the subsequent field are replaced.