Abstract:
A video quality adaptive coding artifact reduction system has a video quality analyzer, an artifact reducer, and a filter strength controller. The video quality analyzer employs input video quality analysis to control artifact reduction. The video quality analyzer accesses the video quality of the decoded video sequence to estimate the input video quality. The filter strength controller globally controls the filter strength of the artifact reducer based on the video quality estimate by the video quality analyzer. For low quality input video, the filter strength controller increases the artifact reduction filter strength to more efficiently reduce the artifact. For high quality input video, the filter strength controller decreases the artifact reduction filter strength to avoid blurring image detail.
Abstract:
A deodorization material composition, a manufacturing method thereof, and a deodorization method are provided. The deodorization material composition is adapted to eliminate an odor in an environment. The manufacturing method comprises providing nanoscale silver particles, nanoscale calcium particles, a nearly vacuum environment, a preset specific temperature, a medium material, and a post-treatment process, which allows the nanoscale silver particles and the nanoscale calcium particles to be alternately distributed in the medium material and thereby form a stable deodorization material composition. When the deodorization material composition is pressure sprayed into the environment, the nanoscale silver particles and the nanoscale calcium particles collide with or brush air particles to form free positive ions and negative ions respectively, which in turn react with constituents of the odor in the environment to eliminate the odor.
Abstract:
A multimedia data coding method for cell phones is provided, wherein the multimedia data coding method comprises steps as follows: First multimedia data is captured by a first cell phone, and then a coding parameter is determined by selecting a coding mode. Subsequently the multimedia data is coded according to the coding mode and the coding parameter to output a signal. The signal is then transmitted to a second cell phone.
Abstract:
A method for efficient removal of blocking artifacts in blocks of pixels forming a video image frame, without blurring image edges. First a current pixel is checked to determine whether it is a block boundary pixel. If the current pixel is a boundary pixel, then the “1-D central variance” is computed for horizontal, vertical and diagonal directions that cross the block boundary by using three pixels along a line centered at the current pixel. The “least central variance direction” is then determined by finding the direction which has minimal “1-D central variance”. Then, the current pixel is updated by replacing its value with the average value of the three pixels along the “least central variance direction”, to essentially remove undesirable blocking artifacts.
Abstract:
The present invention discloses a test method for image sharpness, which can instantly determine the sharpness of a captured image, wherein a captured image is firstly divided into multiple blocks with each block composed of multiple pixels; in each block of the captured image, the pixels having higher sharpnesses are selected, and the sharpnesses of those pixels are summed up to be the sharpness of the related block; the estimated sharpness of the captured image is also obtained similarly; and the estimated sharpness is compared with a threshold value to determine whether the captured image is sharp enough. Thereby, the present invention can test the sharpness of an image fast and correctly and inform the user of the status of the captured image and provide the user with corresponding suggestions.
Abstract:
A video noise reduction system for a set of video frames that computes a first motion signal using a current frame and multiple consecutive previous frames, computes a second motion signal using the current frame and the processed preceding frame; computes the multi-frame temporal average of the current frame and multiple consecutive previous frames; computes the recursive average of the current frame and the processed preceding frame; generates a temporal filtered signal by soft switching between the multi-frame temporal average and the recursive average based on the first motion signal; applies a spatial filter to the current frame to generate a spatial filtered signal; and combines the temporal filtered signal and the spatial filtered signal based on the second motion signal to generate a final noise reduced video output signal.
Abstract:
A kinetic energy transferring element applied to a button structure for pressing an electric switch has a curved portion, a first extended portion and a second extended portion, in which the curved portion is bridged between the first extended portion and the second extended portion. The first extended portion is served as a fulcrum of the transferring element, while the second extended portion is a free end to receive foreign application. When the user presses the second extended portion, the curved portion of the kinetic energy transferring element can protrude to touch the electric switch.
Abstract:
A method for manufacturing antibacterial polyester master batches and fibers containing nano-silver particles, the method includes the acts of: mixing a reducing agent, glycol and a silver precursor together to compose a first mixture; esterifying terephthalic acid and glycol to compose a second mixture containing block polymers; mixing the first and second mixtures to make the block polymers further polymerize to achieve a polyester liquid containing nano-silver particles; optionally, cooling the polyester liquid to solidify; and selectively, granulating the solidified polyester to obtain a polyester master batches or melting spinning the polyester to obtain polyester fibers. By reducing the silver ions during polymerizing reaction, the reduced silver particles are separated by polymerized polyester molecules so that the silver particles are evenly distributed inside the polyester master batches without coagulation.
Abstract:
A global and local statistics controlled noise reduction system in which the video image noise reduction processing is effectively adaptive to both image local structure and global noise level. A noise estimation method provides reliable global noise statistics to the noise reduction system. The noise reduction system dynamically/adaptively configures a local filter for processing each image pixel, and processes the pixel with that local filter. The filtering process of the noise reduction system is controlled by both global and local image statistics that are also computed by the system.