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Chia-Kai Liang
Chia-Kai Liang, Fengshan City TW
| Patent application number | Description | Published |
|---|---|---|
| 20110074804 | SELECTION OF A REGION - An apparatus includes means for receiving input indicating a selection point; generating a set of paths originating from said selection point; determining an influence value for each point on a path to generate an influence map; and applying said influence map to an image. | 03-31-2011 |
| 20110074809 | ACCESS TO CONTROL OF MULTIPLE EDITING EFFECTS - An apparatus includes means for associating a first editing effect with a first editing direction; means for associating a second editing effect with a second editing direction; means for receiving an editing input indicating an input direction and an input length; means for determining an editing degree according to a corresponding length of said input length in an editing direction by extracting a component corresponding to the input in the editing direction; and means for applying said associated editing effect in a degree according to the editing degree to an image. | 03-31-2011 |
Chia-Kai Liang, Taipei TW
| Patent application number | Description | Published |
|---|---|---|
| 20090096878 | Digital image stabilization method - A digital image stabilization method that integrates a digital stabilization device and a digital video encoder is disclosed. The digital stabilization device comprises a determining module for determining background regions, a comparison module for calculating motion vectors, and an adjustment module for adjusting jerky image motion in frames. When there are frame jiggles, the motion vector between an I frame and a P frame is used for motion estimation to get a first motion vector and also define a background region of the P frame. Next, a second motion vector of a B frame is calculated according to the background region to adjust jerky motion of the P frame and the B frame for stabilization. The next P frame then uses the background region of the preceding P frame as its background region. | 04-16-2009 |
| 20090184915 | LOW-BACKLIGHT IMAGE VISIBILITY ENHANCEMENT METHOD AND SYSTEM - A low-backlight image visibility enhancement method and system is proposed for integration to a backlit type of display unit, such as active matrix LCD (Liquid Crystal Display). The proposed method and system firstly converts the image of each video frame into a brightness-based grayscale image; then decomposes the grayscale image into a low-pass base layer and a high-pass detail layer; and then performs a brightness compensation for the base-layer image and a contrast enhancement for the detail-layer image; and finally combines the two image layers into one single image and performs color conversion to the combined image. The resulted image is then used for display on the display unit. This feature allows the display unit to use a low level of backlight to save electrical power consumption while nevertheless allow the image to be displayed with good visibility. | 07-23-2009 |
| 20100135585 | Method and Apparatus of Tile-based Belief Propagation - A method and apparatus of tile-based belief propagation are disclosed. An image is split into a number of tiles. Messages are iteratively generated within each of the tiles based on the messages from neighboring pixels to the tile at a previous iteration, wherein each message represents information of a state of the pixel. The generated messages for sending out of the tiles are stored. Labels are then determined based on the stored messages, wherein each label represents the state of the pixel. | 06-03-2010 |
| 20110026910 | PHOTOMETRIC CALIBRATION METHOD AND DEVICE - A photometric calibration method includes: obtaining a target image and a reference image by a light field camera and transforming the reference image into a revised target image corresponding to the target image; calculating a photometric calibration ratio according to a function for correlating the target image and the revised target image by using a numerical algorithm; and the intensity of the target image is divided by the photometric calibration ratio to obtain a calibrated target image. A light field of a scene is formed by all of the calibrated target image so as to improve the quality of the light field. | 02-03-2011 |
| 20110141353 | METHOD OF REALISM ASSESSMENT OF AN IMAGE COMPOSITE - In a method of realism assessment of an image composite, the foreground and the background are transformed into a color space, such as YCbCr, followed by projecting the foreground and the background to a subspace represented by the axes representing chromatic information. The image composite is assessed in the projected subspace, according to linearity of color distributions of the foreground/the background, or according to distance between the color distributions of the foreground/the background and a center of the transformed color space. | 06-16-2011 |
Chia-Kai Liang, Hsin-Chu City TW
| Patent application number | Description | Published |
|---|---|---|
| 20090226047 | Apparatus and Method of Processing Image and Human Face Detection System using the smae - An image processing apparatus includes a first register, a second register and an adder. The second register reads a number of pixels from a sub-window image in turn. The adder adds the pixels in the second register and stored values in the first register to output a number of adding calculation values. The adding calculation values are returned to the first register and are saved as stored values. In addition, the present invention relates to an image processing method and a human face detection system using the above image processing apparatus. | 09-10-2009 |
Chia-Kai Liang, Hsin-Chu TW
| Patent application number | Description | Published |
|---|---|---|
| 20090129694 | METHOD AND APPARATUS THEREOF FOR ENHANCING DIGITAL IMAGE - A method and an apparatus thereof for enhancing a digital image. The method includes the steps of: capturing a pixel data block; determining a searching region and a reference window with the pixel data block serving as a center; dividing the searching region into compared windows each having a size equal to a size of the reference window; sequentially comparing the compared windows to the reference window to determine corresponding weighting values according to compared results; multiplying calculated blocks in the compared windows by the corresponding weighting values of the blocks to obtain weighted blocks; accumulating the weighted blocks to obtain a summed pixel data block; accumulating the weighting values to obtain a summed weighting value; and normalizing the summed pixel data block according to the summed weighting value to obtain an image-enhanced pixel data block. | 05-21-2009 |
Chia-Kai Liang, Tainan City TW
| Patent application number | Description | Published |
|---|---|---|
| 20110285701 | Stereo-Matching Processor Using Belief Propagation - In accordance with at least some embodiments of the present disclosure, a processor for performing stereo matching of a first image and a second image is described. The processor may include a first pipeline stage configured to generate data costs associated with a first tile selected from the first image, wherein the data costs is generated based on pixels in the first tile and corresponding pixels in the second image. The processor may include a second pipeline stage configured to generate disparity values associated with the first tile and an outbound message from the first tile to one of neighboring tiles in the first image, wherein the disparity values and the outbound message are generated based on the data costs and inbound messages from the neighboring tiles to the first tile. The processor may further include a third pipeline stage configured to store the disparity values and the outbound message in a memory, wherein the outbound message is used by the second pipeline stage as one of the inbound messages during processing of a second tile selected from the first image. | 11-24-2011 |