130 results about "Deinterlacing" patented technology

A method for deinterlacing interlaced video using a graphics processor includes receiving at least one instruction for a 2D / 3D engine to facilitate creation of an adaptively deinterlaced frame image from at least a first interlaced field. The method also includes performing, by the 2D / 3D engine, at least a portion of adaptive deinterlacing based on at least the first interlaced field, in response to the at least one instruction to produce at least a portion of the adaptively deinterlaced frame image. Once the information is deinterlaced, the method includes retrieving, by a graphics processor display engine, the stored adaptively deinterlaced frame image generated by the 2D / 3D engine, for display on one or more display devices. The method also includes issuing 2D / 3D instructions to the 2D / 3D engine to carry out deinterlacing of lines of video data from interlaced fields. This may be done, for example, by another processing device, such as a host CPU, or any other suitable processing device.

A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) determining a protection condition by performing a static check on the picture in a region around a location interlaced with a first field of the picture, (B) calculating an interpolated sample at the location by temporal averaging the first field with a second field in response to the protection condition indicating significant vertical activity and (C) calculating the interpolated sample at the location by spatial filtering the first field in response to the protection condition indicating insignificant vertical activity.

A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) generating a plurality of primary scores by searching along a plurality of primary angles for an edge in the picture proximate a location interlaced with a field of the picture, (B) generating a plurality of neighbor scores by searching for the edge along a plurality of neighbor angles proximate a particular angle of the primary angles corresponding to a particular score of the primary scores having a best value and (C) identifying a best score from a group of scores consisting of the particular score and the neighbor scores to generate an interpolated sample at the location.

An adaptive filter calculates a target pixel from an interlaced video signal. The video signal comprises a plurality of frames, each of which comprises an even and an odd field. The filter comprises a quantized motion calculator and a filter selector. The quantized motion calculator estimates an amount of motion about the target pixel. The filter selector selects a filter in accordance with the estimated amount of motion. The filter applies a first weighting factor to a plurality of current field pixels and a second weighting factor to a plurality of previous field pixels for creating the target pixel.

A method for deinterlacing interlaced video using a graphics processor includes receiving at least one instruction for a 2D / 3D engine to facilitate creation of an adaptively deinterlaced frame image from at least a first interlaced field. The method also includes performing, by the 2D / 3D engine, at least a portion of adaptive deinterlacing based on at least the first interlaced field, in response to the at least one instruction to produce at least a portion of the adaptively deinterlaced frame image. Once the information is deinterlaced, the method includes retrieving, by a graphics processor display engine, the stored adaptively deinterlaced frame image generated by the 2D / 3D engine, for display on one or more display devices. The method also includes issuing 2D / 3D instructions to the 2D / 3D engine to carry out deinterlacing of lines of video data from interlaced fields. This may be done, for example, by another processing device, such as a host CPU, or any other suitable processing device.

The present invention relates to a deinterlacing device and method for converting a video signal of an interlaced scan format into a video signal of a progressive scan format. The deinterlacing method including the steps of: measuring an edge gradient from a series of pixels provided in an upper scan line and a series of pixels provided in a lower scan line with reference to a pixel to be interpolated; determining an interpolation method on the basis of the measured edge gradient; calculating a difference value for each of pixel pair combinations, each of the pixel pair combinations having at least one pixel pair, the pixel pair having two pixels each one from each of the upper and lower scan lines with reference to the pixel to be interpolated, each of the pixel pair combinations having the pixel pairs that are adjacent to one another, the pixel pair combinations having different directions from one another; determining an edge direction on the basis of a direction of the pixel pair combination having the smallest difference value; and performing an interpolation for the pixel depending on the determined interpolation method and the determined edge direction.

A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) determining a protection condition by performing a static check on the picture in a region around a location interlaced with a first field of the picture, (B) calculating an interpolated sample at the location by temporal averaging the first field with a second field in response to the protection condition indicating significant vertical activity and (C) calculating the interpolated sample at the location by spatial filtering the first field in response to the protection condition indicating insignificant vertical activity.

There is provided an image signal deinterlacing apparatus for converting an interlaced scanning image into a progressive scanning image. The deinterlacing apparatus includes: an intra-field pixel processing unit for detecting a face area and a to-be-interpolated data within a field by using pixels of a field disposed before two field from a current field; a motion value generating unit for detecting first to third motion values and first and second motion degree values; a history control unit for detecting a history value; a fast image processing unit for detecting a fast motion image; a film image processing unit for detecting a film image and a caption area and determining a to-be-interpolated field data; a still image processing unit for accumulating the first motion value and the second motion degree value to detect a still image; an inter-field noise image processing unit for detecting an adjacent inter-field noise image; a motion boundary maintenance image processing unit for detecting a motion boundary maintenance image; and a synthesizing unit for selectively interpolating the intra-field to-be-interpolated data, the before-one-field inter-field data and the before-three-field inter-field data according to the detection result.

A deinterlacing apparatus and method use a buffer unit having a previous field buffer, a current field buffer, and a next field buffer to store, sequentially, individual fields of an image signal; calculate a Sum of Absolute Difference (SAD) value of a predetermined search region unit with reference to a next field stored in the next field buffer and a previous field stored in the previous field buffer; determine whether the predetermined search region is a still region and whether a source of the image signal is a film based on the SAD value; uses a 3D interpolation unit to output adaptively a temporal interpolation value and a spatial interpolation value based on motion information; and adaptively select a deinterlacing result based on the previous field, the next field, and an output of the 3D interpolation unit according to a signal outputted from the still region / film mode detection unit.

A video apparatus is provided with automatic deinterlacing and inverse telecine pre-filtering capability to automatically analyze the frames of the video to determine at least whether the video is one of telecine, non-telecine progressive and non-telecine interlaced formatted, and to automatically reformat the video into a non-telecine progressive format if the video is determined to be one of telecine and non-telecine interlaced formatted.

Adaptive deinterlacing of interlaced video to generate a progressive frame on a per pixel basis. Two consecutive fields of interlaced video are converted into a frame of progressive video. One of the fields is replicated to generate half the lines in the progressive frame. Each of the pixels in the other half of the progressive frame are generated pixel-by-pixel. For a given output position of the pixel in the other half of the progressive frame, a correlation is estimated between the corresponding pixel in the non-replicated field and at least one vertically adjacent pixel of the replicated field, and optionally one or more vertically adjacent pixels in the non-replicated fields. Also, three consecutive input fields of interlaced video may be converted into two output fields of interlaced video on a per pixel basis taking into consideration differences in the consecutive input fields.

An apparatus and method of motion-compensation adaptive deinterlacing. The method includes detecting whether an input image is a still image using information regarding the input image stored in a memory, estimating a motion of a pixel to be interpolated when the input image is not a still image, and interpolating the pixel to be interpolated using one of using pixel values of previous and next fields with respect to a reference field including the pixel to be interpolated when the input image is the still image, the estimated motion information when the input image is not the still image and has no vertical fast motion, and pixel values of the reference field when the input image has a vertical fast motion.

An apparatus and method of motion-compensation adaptive deinterlacing. The method includes detecting whether an input image is a still image using information regarding the input image stored in a memory, estimating a motion of a pixel to be interpolated when the input image is not a still image, and interpolating the pixel to be interpolated using one of using pixel values of previous and next fields with respect to a reference field including the pixel to be interpolated when the input image is the still image, the estimated motion information when the input image is not the still image and has no vertical fast motion, and pixel values of the reference field when the input image has a vertical fast motion.

A method for deinterlacing video includes constructing a temporary frame of deinterlaced video based on a first (i.e., current) field of interlaced video, wherein the temporary frame includes pixels in lines of the temporary frame associated with the first field of interlaced video, placeholder pixels in identified areas of motion in lines of the frame associated with a missing field of interlaced video, and pixels from an opposite field of polarity of interlaced video in areas without motion. The method further includes replacing the placeholder pixels in the identified areas of motion with pixels interpolated using an edge direction interpolation scheme based on pixels in the first field of interlaced video, resulting in a reconstructed frame. In one example, a motion adaptive interpolator may construct the temporary frame, and an edge directional interpolator may generate the reconstructed / deinterlaced the frame.

A method and apparatus for deinterlacing a picture is disclosed. The method generally includes the steps of (A) calculating a plurality of differences among a plurality of current samples from a current field of the picture, the differences being calculated along a plurality of line segments at a plurality of angles proximate a particular position between two field lines from the current filed, (B) generating a first sample at the particular position by vertical filtering the current field in response to the differences indicating that the particular position is a non-edge position in the picture and (C) generating a second sample at the particular position by directional filtering the current field in response to the differences indicating that the particular position is an edge position in the picture.

A system and method that determine a portion of video data with relevant information about that video to be used in statistical calculations associated with the video. The method may comprise determining the starting line and ending line of the portion of video data with the relevant information. The remaining portion of the video data may comprise information that may contain no statistical information. The remaining portion may be a vertical blanking interval.

Herein described are at least a system and a method of more effectively detecting and correcting irregularities when performing an inverse telecine deinterlacing of pull-down video. These irregularities may be caused by editing of the video, which when left undetected, may result in displaying video of unacceptable quality. In a representative embodiment, the method determines a first pixel luminance of an absent pixel using a luminance generated from one or more first present pixels, determines a second pixel luminance of the absent pixel using a luminance generated from one or more second present pixels, and determines a first luminance approximation for the absent pixel. In a representative embodiment, the system comprises a memory, a software resident in the memory, and a processor used to execute the software, such that executing the software performs the inverse telecine deinterlacing to result in an improve displayed video image quality.

A method for performing motion compensated video spatial up-conversion on video. The horizontal samples in successive fields are first interpolated using a spatial interpolation technique. This is followed by interpolating the corresponding vertical samples using a motion compensated deinterlacing technique. Such techniques can include an adaptively recursive motion compensated video spatial up-conversion or an adaptively recursive motion compensated video spatial up-conversion using a generalized sampling theorem. The present invention can be used to convert video captured on a mobile device, such as a mobile telephone, so that it can be subsequently and adequately displayed on a television.

An adaptive filter calculates a target pixel from an interlaced video signal. The video signal comprises a plurality of frames, each of which comprises an even and an odd field. The filter comprises a quantized motion calculator and a filter selector. The quantized motion calculator estimates an amount of motion about the target pixel. The filter selector selects a filter in accordance with the estimated amount of motion. The filter applies a first weighting factor to a plurality of current field pixels and a second weighting factor to a plurality of previous field pixels for creating the target pixel.

A method and system for deinterlacing an interlaced video stream is presented. The method and system determines whether an interlaced video stream is a normal mode video stream or a converted mode video stream. Converted mode video streams, which are interlaced video streams created from an original progressive video stream, are deinterlaced using converted mode deinterlacing, which involves merging two fields to form a frame. Normal mode interlaced video streams are deinterlaced using normal mode deinterlacing, which involves converting a field into a frame using line repeating or some form of interpolation to generate the missing scan lines.

An adaptive filter calculates a target pixel from an interlaced video signal. The video signal comprises a plurality of frames, each of which comprises an even and an odd field. The filter comprises a quantized motion calculator and a filter selector. The quantized motion calculator estimates an amount of motion about the target pixel. The filter selector selects a filter in accordance with the estimated amount of motion. The filter applies a first weighting factor to a plurality of current field pixels and a second weighting factor to a plurality of previous field pixels for creating the target pixel.

The present invention relates to a deinterlacing device and method for converting a video signal of an interlaced scan format into a video signal of a progressive scan format. The deinterlacing method including the steps of: measuring an edge gradient from a series of pixels provided in an upper scan line and a series of pixels provided in a lower scan line with reference to a pixel to be interpolated; determining an interpolation method on the basis of the measured edge gradient; calculating a difference value for each of pixel pair combinations, each of the pixel pair combinations having at least one pixel pair, the pixel pair having two pixels each one from each of the upper and lower scan lines with reference to the pixel to be interpolated, each of the pixel pair combinations having the pixel pairs that are adjacent to one another, the pixel pair combinations having different directions from one another; determining an edge direction on the basis of a direction of the pixel pair combination having the smallest difference value; and performing an interpolation for the pixel depending on the determined interpolation method and the determined edge direction.

A video apparatus is provided with automatic deinterlacing and inverse telecine pre-filtering capability to automatically analyze the frames of the video to determine at least whether the video is one of telecine, non-telecine progressive and non-telecine interlaced formatted, and to automatically reformat the video into a non-telecine progressive format if the video is determined to be one of telecine and non-telecine interlaced formatted.

A method of deinterlacing includes generating a deinterlaced display frame including a reference field of lines of display pixels of a first parity and a generated field of lines of display pixels of a second parity. A frame motion map is generated which includes bits representing a presence of motion or an absence of motion at the display pixels of the reference and generated fields. Testing is performed for the presence of motion or the absence of motion at a selected display pixel of the reference field utilizing the frame motion map. In response to detecting a presence of motion at the selected display pixel of the referenced field, replacing a pixel value corresponding to the selected display pixel with a pixel value generated by interpolating between display pixel values corresponding to neighboring display pixels in the generated field.

A deinterlacing apparatus and method use a buffer unit having a previous field buffer, a current field buffer, and a next field buffer to store, sequentially, individual fields of an image signal; calculate a Sum of Absolute Difference (SAD) value of a predetermined search region unit with reference to a next field stored in the next field buffer and a previous field stored in the previous field buffer; determine whether the predetermined search region is a still region and whether a source of the image signal is a film based on the SAD value; uses a 3D interpolation unit to output adaptively a temporal interpolation value and a spatial interpolation value based on motion information; and adaptively select a deinterlacing result based on the previous field, the next field, and an output of the 3D interpolation unit according to a signal outputted from the still region / film mode detection unit.

A method and system for deinterlacing an interlaced video stream is presented. The method and system determines whether an interlaced video stream is a normal mode video stream or a converted mode video stream. Converted mode video streams, which are interlaced video streams created from an original progressive video stream, are deinterlaced using converted mode deinterlacing, which involves merging two fields to form a frame. Normal mode interlaced video streams are deinterlaced using normal mode deinterlacing, which involves converting a field into a frame using line repeating or some form of interpolation to generate the missing scan lines.

This invention discloses a system for realizing SOC of a mobile terminal baseband including: a MCU core unit, a storage unit, built-in software DSP and an exterior interface unit, in which, the exterior interface unit provides software interfaces and hardware interfaces for interacting between users and mobile terminals, the MCU core unit controls I / O of data and provides system time clock reference and real time synchronous primary standard, the sorftware DSP realizes RF process, modulation / demodulation, code / decode, channel balance, interlacing / deinterlacing, spectrum spead / de-spread, cipher / de-cipher, timing, synchronization, digital signal process of storage combination pieces, exterior and multimedia interfaces, I / O of phones and multimedia images and storing data by a storage unit of baseband SOC, which can reduce hardware and specific hardware devices of a system.

A video image deinterlacing apparatus includes intrafield and interfield processors therein. The intrafield processor is responsive to field data (e.g., sequence of video image fields) depicting a time-varying video image. The intrafield processor is configured to determine edge and edge steepness characteristics for a plurality of omitted pixels within fields of the time-varying video image. The interfield processor, which is also responsive to the field data, is configured to identify pixels possessing time-invariant properties.