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A 2MPixels@30fps 24b high-dynamic-range image processing chip is fabricated in a 16nm CMOS process with a core area of 5.69mm2. This LSI integrates multiple color-filter-array (RGGB, RGB-Ir, RCCC, RCCB, and Mono) image processing into a single chip. It contains 2,067k logic gates and 628.3kB internal SRAM. Moreover, it supports multiple-exposure sensor and up to 24b/color components fusion results to achieve 2.1 x dynamic range improvements compared to single exposure results. To efficiently deliver data to the external memory, tone mapping (TM) and data-bus compression and data-bus decompression (DCDD) techniques are developed to reduce external bandwidth by 69.1 %. For automotive applications, it completes real-time image processing with 4-exposure 1920×1080 @30fps and consumes 249mW (0.98nJ/pixel) of core power dissipation at 0.65V supply voltage operating at 250MHz. The chip features are summarized in Fig. 21.3.1.

Research on creating a large, high-resolution, low-cost display system has become increasingly important due to the growing desire in many fields for bigger and better displays. The goal of this research is to build a seamless large-scale display system by tiling multiple projectors with the help of a pan-tilt-zoom camera. In order to achieve this goal, we took two tasks into consideration: geometric calibration and photometric calibration. Compared to the previous work, our method for geometric calibration is more accurate, thanks to the much higher resolution images acquired by combining several zoom-in images and doing lens correction for the camera at first. For photometric calibration, we achieve color uniformity among projectors by utilizing the same PTZ camera, which is calibrated once with a colorimeter in a factory. Furthermore, we adopted the technique of producing a high dynamic range image from several images of different exposures to increase the measurement accuracy of the camera. In our experiments, the average error of photometric measurement achieved by our method is less than the mean perceptibility tolerance. Our method has great potential for many applications that require large and high-resolution displays.

Many wall-size display systems are built to provide large-scale visualization. These systems may be quite successful for some limited applications, but are very inflexible, since these systems only have fixed display regions. This paper integrates steerable projectors whose beam can be moved under computer control onto a wall-size display system to strengthen its display ability. With the steerable projectors, the integrated display system, named Flexible Display, provide an extendable display region. This consists of a large-scale display region and several movable display regions, such that the integrated display system has great potential in the area of human-computer interaction and information visualization. This paper applies the Flexible Display to a virtual museum application to give the users fluent navigation experience. For the application, the Flexible Display provides the following functions: 1) intensity and resolution enhancement of sub-region of display wall, 2) information augmentation, and 3) “stepping user interfaces” for its viewers interacting with display wall.