We investigated how observers' control of the stimulus change affects temporal aspects of visual perception. We compared the flash-lag effects for motion (Experiment 1) and for luminance (Experiment 2) under several conditions that differed in the degree of the observers' control of change in a stimulus. The flash-lag effect was salient if the observers passively viewed the automatic change in ...

FlashTM is undergoing an explosive growth and has become a prevailing media format on the Web. Unfortunately, no research effort has been dedicated to the retrieval of Flash movies based on content, which is essential to the utilization of the enormous Flash resource. In this paper, we conduct a close investigation of Flash movies and reveal that a typical movie is semantically characterized by...

The flash-lag effect refers to the phenomenon where a flash of a stationary stimulus presented adjacent to a moving stimulus appears to lag behind it. We investigated whether the flash-lag effect affected the tilt aftereffect using two sets of vertical gratings for a flash and a moving stimulus that created a specific orientation when aligned with a specific temporal offset. Our results show th...

This paper presents a set of models dedicated to describe a flash storage subsystem structure, functions, performance and power consumption behaviors. These models cover a large range of today's NAND flash memory applications. They are designed to be implemented in simulation tools allowing to estimate and compare performance and power consumption of I/O requests on flash memory based storage s...

In this paper, we present an iterative improvement of the guided image filter for flash/no-flash photography. The guided filter [8] utilizes a guide image to enhance a corrupted input image as similarly done in the joint bilateral filter [3, 12]. The guided filter has proved to be effective for such applications as high dynamic range compression, image matting, haze removal, and flash/no-flash ...

Abstract. Satellite (Lightning Imaging Sensor) based lightning flash grid (0.5 x 0.5) data over the land mass areas of the Indian region covering between 8-30N for a period of 4 years (1998-2001) have been analyzed to examine their geographical, annual, interannual and diurnal distribution. An attempt has been made to obtain IC:CG ratio. Result of this study demonstrates that there exists latit...

Flash memory shows promise for use in storage devices for mobile computers. However, flash memory cannot be overwritten unless erased in advance. Erase operations are slow that usually decrease system performance, and consume power. For power conservation, better system performance, and longer flash memory lifetime, system support for erasure management is necessary. In this report, a non-updat...

In flash storage, an FTL is a complex piece of code that resides completely inside the storage device and is provided by the manufacturer. Its principal virtue is providing interoperability with conventional HDDs. However, this virtue is also its biggest impediment in reaching the full performance of the underlying flash storage. We propose to refactor the flash storage architecture so that it ...

Flash memory is gaining great popularity in both embedded and enterprise systems. Compared to legacy hard drives, flash devices get rid of mechanical components and significantly improve performance. However, flash memory is not merely a faster storage media, and its characteristics provide opportunities of new storage system designs. In this paper, we summarize disruptive techniques on flash s...

In embedded systems, NAND flash memory is typically used as a storage medium because of its non-volatility, fast access time and solid-state shock resistance. However, it suffers from out-place-update, limited erase cycles and page based read/write operations. Flash file systems such as JFFS2 and YAFFS, allocate memory spaces using LFS (Log-structured File System) to solve these problems. Becau...