YPbPr

Abstract: Color models are used for facilitating the specification of colors in a standard way. A suitable color model is associated with every application based on color space. This paper mainly focuses on the analysis of effectiveness of different color models on single image scale-up problems. Single image scale-up aims in the recovery of original image, where the input image is a blurred and down- scaled version of the original one. In order to identify the effect of different color models on scale-up of single image applications, the experiment is performed with the single image scale-up algorithm on standard image database. The performance of different color models (YCbCr, YCoCg, HSV, YUV, CIE XYZ, Photo YCC, CMYK, YIQ, CIE Lab, YPbPr) are measured by quality metric called Peak Signal to Noise Ratio (PSNR). The experimental results based on the calculated PSNR values prove that YCbCr and CMYK color models give effective results in single image scale-up application when compared with the other available color models.

Abstract: A broadcasting receiver and method for recording and reproducing a video signal in a digital recording medium are disclosed. A digital/analog broadcasting signal which is directly received via an antenna or a cable, an external video signal (e.g., a HDMI signal, a DVI signal, an YPbPr signal, a RGB signal, or a CVBS signal) input via an external terminal and a video signal having a predetermined format (e.g., 1080i, 720p, 480p, 480i, XGA, SVGA or VGA) can be recorded and a time-shift function may be performed.

Abstract: The invention discloses a video encoding unit and a realizing method thereof The video encoding unit comprises a DVI (digital visual interface) chip and the like, wherein the DVI chip and an LVDS (low-voltage differential signaling) video interface chip are connected with a first bus selective switch, the DVI chip, the LVDS video interface chip, an RGB (red, green, blue) video interface chip and a YPbPr video interface chip are connected with a CPLD (complex programmable logic device) chip, the RGB video interface chip and the YPbPr video interface chip are connected with a second bus selective switch, the first bus selective switch, the second bus selective bus, the CPLD chip and an ASIC (application specific integrated circuit) chip, and the ASIC chip is connected with a bridge connection chip The video encoding unit has the characteristics of easiness in development, low power consumption, high performance and the like, can totally meet requirements of a vehicle-mounted high-definition video recording system

Abstract: A plug-in card type multimedia demonstration matrix switcher comprises a matrix switching module and a switching control module, wherein the matrix switching module comprises a mother board with a plurality of card slots as well as a matrix switching chip fixed on the mother board, wherein the card slots on the mother board are 7 identical input card slots, two identical video output card slots and two audio output card slots; the demonstration matrix switcher further comprises 7 input signal board cards, two output video board cards and two output audio board cards; the three board cards and the three card slots are corresponding inserted; the 7 input signal board cards are one or combinations of more of HDMI (High Definition Multimedia Interface), DVI (Digital Visual Interface), VGA (Video Graphics Array), YC, YPbPr/YCbCr, CV (Computer Vision) and wireless CV input signal board cards; and the two output video board cards are one or a combination of two of HDMI, DVI and VGA output video board cards According to the invention, an output form that 7 analog and/or digital signal inputs are output through being converted into any one or two of 3 analog and/or digital signals is supported; and the input board cards and the output board cards can be randomly combined and inserted