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In order to get an efficient image representation, we introduce a new locally adaptive Hadamard transform, called Easy Block Hadamard Transform (EBHT). EBHT is a type of directional Hadamard transform, which can be adapted to the image geometry in each block. Firstly, the image is divided into eight equal-sized squares and the adaptive directional Hadamard filter is employed to get the low-pass data...
To satisfy performance of time registration, some of multi-sensor registration algorithms are discussed and a least square fitting method based on sliding window is proposed. The polynomial curve is fitted in each sliding window of registration time around using least square. And then, the value of registration time is calculated in this curve to implement aligning the sensor data in time. Compared...
The capacity of Flash on-board is generally small, the data will be lost after SDRAM power-down, and they can not easily transfer the data to a computer. In order to meet with large-capacity storage needs in the image processing system, this paper uses CF card as removable storage media. It mainly introduces the working principle of CF (Compact Flash) cards and the principle of FAT16 file system,...
CCD image usually has a huge amount of data with high-resolution, therefore it is difficult to capture and browse the image real-timely in real project. In the traditional capture and transportation systems, we usually first capture and store the image into storage medium, then read out the CCD data for browse later, but this method is not good for diagnosis and debugging real-timely. For eliminating...
A single identification model can not guarantee the reliability of the real target recognition in theory, which makes the adaptability can not meet the needs of multi-tasking in the electro-optical imaging identification and tracking system. There is the limitation that single-DSP + FPGA can only realize a relatively simple single-mode image-processing software. The paper combined with targets real-time...
The data exchange capacity among each processing units was a key factor in performance of multiprocessor parallel system. Parallel interconnection based on master-slave architecture constrained by several factors could not be further increased bandwidth. However, high-speed serial interconnect based on point-to-point architecture could achieve greater bandwidth. This paper presented a new multi-processor...
In order to solve an intra-system interface for chip-to-chip and board-to-board communications and meet the explosive demand for higher bandwidth and more efficient signal processing and data transmission in typical embedded system, here is an active demand that adopting a new system interconnect technology to ensure that bus performance continues to increase. The RapidIO is proposed in the paper...
In order to store massive image data in real-time system, a high performance Serial Advanced Technology Attachment (SATA) controller is proposed in this paper. RocketIO GTX transceiver realizes physical layer of SATA protocol. Link layer and transport layers are implemented in VHDL with programmable logic resources. Application layer is developed on POWERPC440 embedded in Xilinx Virtex-5 FPGA. The...
In order to increase transfer rate and enhance performance in mass data transmission and storage in real time system, a high performance Serial Advanced Technology Attachment generation 2(SATA II) host controller is proposed in this paper. This paper presents how to improve the hardware performance in course of implementation and validation. The controller was designed using VHDL and developed in...
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