Abstract: A method and system of enhancing a backlight-scaled image include a minimum perceptible luminance threshold of cone response with dim backlight being determined, and a luminance layer associated with an image being extracted. The luminance layer is decomposed into an HVS response layer and a background luminance layer for each pixel of the luminance layer. Luminance of dark pixels of the background luminance layer is boosted and compressed to a perceptible range above the minimum perceptible luminance threshold, thereby resulting in an enhanced background luminance layer. An enhanced luminance layer is generated through composition using the HVS response layer and the enhanced background luminance layer as inputs.

Abstract: A method and system of enhancing a backlight-scaled image include a minimum perceptible luminance threshold of cone response with dim backlight being determined, and a luminance layer associated with an image being extracted. The luminance layer is decomposed into an HVS response layer and a background luminance layer for each pixel of the luminance layer. Luminance of dark pixels of the background luminance layer is boosted and compressed to a perceptible range above the minimum perceptible luminance threshold, thereby resulting in an enhanced background luminance layer. An enhanced luminance layer is generated through composition using the HVS response layer and the enhanced background luminance layer as inputs.

Abstract: An image processing apparatus includes an image detector and a controller. The image detector is utilized for receiving a surrounding image, and analyzing the surrounding image to determine a user's position. The controller is coupled to the image detector, and is utilized for receiving a stereo image, and modifying the stereo image to generate a modified stereo image by at least rotating the stereo image according to the user's position.

Abstract: The invention is directed to a stereo image correction system and method. A shift unit vertically shifts one image of a stereo image pair with a shifted amount, and a depth generator generates a depth map of the shifted image pair. A high-pass filter processes the depth map to result in a filtered output, and an analysis unit determines a matching point according to the filtered outputs and the corresponding shifted amounts, wherein the shifted amount at the matching point is determined as a matched shifted amount. A compensation unit vertically shifts the image to be shifted of the stereo image pair with the matched shifted amount.

Abstract: In a method of block-based motion estimation a motion vector map is obtained by obtaining a motion vector of each macroblock (MB) in the current frame with respect to the reference frame. The motion vector of each MB in an interpolated frame is then determined according to the motion vector map.

Abstract: A memory access system and method for efficiently utilizing memory bandwidth is disclosed. A data arrangement unit arranges video data into at least a primary block and a supplemental block, which are then stored in a memory device. The video data are arranged such that the video data of the primary block stored in the memory device can be sequentially read by a device, thereby increasing efficiency in memory bandwidth usage and memory data access.

Abstract: A method of converting a frame rate of a video signal includes the steps of: receiving a pulldown film sequence existing in or converted from a sequence of successive-in-time frames of the video signal, in which the pulldown film sequence comprises a plurality of diverse original frames each having a corresponding number of duplicate frames; modifying the original frames; performing estimation of at least one motion vector associated with the modified original frames; and interpolating new frames between the modified original frames in accordance with the motion vector.

Abstract: A system and method of enhancing depth of a three-dimensional (3D) image are disclosed. A depth generator generates at least one depth map associated with an image. A depth enhancer enhances the depth map by stretching a depth histogram associated with the depth map, wherein the depth histogram is a distribution of depth levels of pixels of the image.

Abstract: The system for edge direction detection for spatial deinterlace comprises an ignored region detector and an edge direction detection unit. The ignored region detector is configured to receive a first type field of a video frame and to define a search region based on the first type field. The edge direction detection unit is configured to select an edge direction within the search region. The edge direction is associated with an interpolated pixel located on one of a plurality of second type lines of a second type field, where the search region is smaller than the first type field.

Abstract: The invention is directed to a frame rate up conversion (FRUC) system and method. A motion estimation (ME) unit is configured to generate at least one motion vector (MV) according to a frame input. A triple-line buffer based motion compensation (MC) unit is configured to generate an interpolated frame according to the MV, a reference frame and a current frame, thereby generating a frame output with a frame rate higher than a frame rate of the frame input.

Abstract: In a method of block-based motion estimation a motion vector map is obtained by obtaining a motion vector of each macroblock (MB) in the current frame with respect to the reference frame. The motion vector of each MB in an interpolated frame is then determined according to the motion vector map.

Abstract: A content-adaptive overdrive system and method, for a display panel, include a frame difference device and an overdrive device. The frame difference device generates a frame difference map according to a current frame and a previous frame. The frame difference map includes a number of flags respectively indicating similarity between corresponding pixels or blocks of the current frame and the previous frame. The overdrive device adaptively performs an overdrive function based on the frame difference map, the current frame, the previous frame and an overdrive lookup table, hence resulting in an overdrived frame.

Abstract: A method and apparatus for controlling image compression is disclosed. A current block of pixels is firstly compressed. The average pixel size of the compressed current block is averaged with an average pixel size of preceding block or blocks to obtain an average value. The compressed current block is passed as output, if the average value is not greater than a target value; otherwise a portion of the current block prior to compression is truncated and then passed as the output.

Abstract: A memory access system and method for efficiently utilizing memory bandwidth is disclosed. A data arrangement unit arranges video data into at least a primary block and a supplemental block, which are then stored in a memory device. The video data are arranged such that the video data of the primary block stored in the memory device can be sequentially read by a device, thereby increasing efficiency in memory bandwidth usage and memory data access.

Abstract: A method of converting a frame rate of a video signal includes the steps of: receiving a pulldown film sequence existing in or converted from a sequence of successive-in-time frames of the video signal, in which the pulldown film sequence comprises a plurality of diverse original frames each having a corresponding number of duplicate frames; modifying the original frames; performing estimation of at least one motion vector associated with the modified original frames; and interpolating new frames between the modified original frames in accordance with the motion vector.

Abstract: An interpolated frame generating method is provided. The interpolated frame generating method comprises the steps of: providing a first frame and a second frame; calculating a first motion vector having a first x-component with a first x-length along the x-axis and a y-component with a first y-length along the y-axis; determining the first x-length and the y-length is an odd integral number of pixels; generating a second motion vector comprising: a second x-component with a second x-length smaller than the first x-length and a second y-component with a second y-length smaller than the first y-length, wherein the second x-length and the second y-length are an integral number of pixels respectively; the direction of the second x-component and y-component is the same as the first x-component and y-component respectively; and generating an interpolated frame between the first and the second frame according to the first frame and the second motion vector.

Abstract: A packing switching system and method is disclosed. A pipelined processor processes image pixels to generate a number of bit streams. Subsequently, a packing unit packs the bit streams into packets in a way that the bit stream or streams with minimum pixel order number are packed before other bit stream or streams.

Abstract: A method of image compression and a device thereof are provided herein. First, an image having a plurality of regions is received. Next, a quantization process is performed on a specific region of the image according to a quantization value, wherein the specific region is one of the regions. Next, a first average bit rate of the specific region of the image after an encoding process is calculated. Furthermore, the quantization value of the corresponding specific region of the next received image is adjusted according to the first average bit rate of the specific region of the image. Therefore, by referring to the scene complexity of the previous image to adjust the quantization value, the compressed image quality can be enhanced and the compression ratio can be maintained a regular value without wasting bandwidth.

Abstract: A method and apparatus for controlling image compression is disclosed. A current block of pixels is firstly compressed. The average pixel size of the compressed current block is averaged with an average pixel size of preceding block or blocks to obtain an average value. The compressed current block is passed as output, if the average value is not greater than a target value; otherwise a portion of the current block prior to compression is truncated and then passed as the output.

Abstract: A de-interlace method is performed by the following process. First, edge directions of pixels surrounding a target pixel to be interpolated in an interpolating line are received, and a search range selected from the edge directions of the surrounding pixels is determined by checking a consistency of the edge directions of the surrounding pixels. Sequentially, an edge direction of the target pixel is determined based on the search range, and a pixel value of the target pixel is generated based on the edge direction of the target pixel for interpolation.