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|Title: ||The study of image processing IPs for LCD TV|
|Other Titles: ||液晶電視之影像處理IP研究|
|Authors: ||連俊宏;Lien, Chun-hung|
|Keywords: ||液晶電視;色彩調整;飽和度;影像後處理;LCD TV;Picture quality;Chromatic adjustment;High dynamic range;Post processing|
|Issue Date: ||2010-09-23 17:54:43 (UTC+8)|
|Abstract: ||在平面電視全球普及率節節攀升趨勢下，LCD TV已成為消費者第一指名購買的3C產品。而一般消費者在考慮購買前，除了品牌的形象考量外，針對硬體本身性能中，畫面呈現的整體品質是驅動消費者最主要的購買因素。故目前各大LCD TV控制晶片廠商中，皆有其各自處理畫質的核心技術。|
As the increasing share of TV market, LCD TV becomes the most popular 3C product in the minds of consumers. Besides the brand name of LCD TV, the picture quality is a very important factor to determine the purchasing decision of customer. Consequently, every corporation of LCD TV chip provider has its own picture quality processing engine. In general, the picture quality processor includes a front-end filter, deinterlacing, and post color and contrast adjustment. The work in this thesis is to propose a novel chromatic adjusting scheme of LCD TV without over-saturation, which can be implemented in hardware IP or an embedded function in TV controller SOC.
The color setting of every branded LCD TV is not the same due to the characteristic of LCD panel and the market location. Furthermore, every user may have his own favorite color setting. Therefore, a chromatic adjustment is necessary in the LCD TV controller. The traditional methods of chromatic adjustment suffer from the hardware cost and computing power, and hence it can’t not specify the exact boundary of color space. It usually causes over-saturation after chromatic adjustment and loses the color tone detail. In this thesis, a novel chromatic adjusting scheme without any over-saturation is proposed. By exactly calculating the boundary of color space, this scheme can generate the vivid colors and preserve more detail in high saturation area of an image frame. Unlike the traditional methods, the proposed scheme can be easily implemented in hardware IP which is suitable for integration in SOC.
In this work, a novel chromatic adjusting processing scheme for LCD TV is proposed. The chromatic adjusting scheme can make the picture quality more colorful after the favorite color adjustment by the user. The image frame will have no over-saturation and preserves the image detail after this color adjusting scheme. Comparing with traditional method, this scheme can be implemented in hardware, whish means it can be easily adopted in SOC chip.
|Appears in Collections:||[電機工程學系暨研究所] 學位論文|
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