Design of Image Acquisition System Based on OV6630 image sensor and DSP
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Source: China Power Grid Author: Xu Jingshu, Fu huaming
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0 Introduction
DSP is an important technology developed based on programmable ultra-large-scale integrated circuits and computer technology, the fast data collection and processing functions of
Implementation of Multiple DSP image processing and recognition systems for Marine Search and Rescue
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Source: China Power Grid Author: Bi Wenyu Zuo wenxu Bing, School of opto-electronics, Yantai University
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Introduction
Maritime search and rescue services are an important part of the national emergency rescue system and an important guarantee for national economic development. The adoption of adva
Understanding the following makes it easy to design multi-threaded applications on DSP/BIOS.
DSPs/BIOS support multiple types of threads. Each type of thread has different execution and preemptive points. The table (click to see the larger picture) lists some features of these threads.
Principles of thread SelectionThe thread selection is based on the answer to the following question: in the application, is this thread real-time (the thread must end
Original articleReprint please register source HTTP://BLOG.CSDN.NET/TOSTQObjectiverecently the teacher assigned a homework, let me use multi-core DSP to do a RANSAC image registration based on SIFT, Sift+ransac online have a lot of code, not difficult, but multi-core DSP for me, is completely blank, not only single-core DSP has not touched, Even CCS is useless. T
This is what I encountered when using DSP to implement a function, the program requires to get a character array within the specified position of the data.1. How to declare an array:There are several ways to declare an array: CharCh[4] = {'a','b','C',};//mode 1 {} also can not fill in the data Charch2[]="Multi";//Mode 2 This way of declaring the most stable in the development of DSP engineering Cha
Tsk Task Management Module
The Tsk module provides a series of functions that access and manage task objects through Tsk_handle handles. The Dsp/bios task management module runs according to the priority of the task object and switches from one task to another by switching functions.
Each task has four execution states: Run, Ready (Ready), paused (blocked), and terminated. Once a task is created, it is always in one of four states.
The
Chapter 2 fixed-point operations on DSP Chips1. Data overflow:1> overflow classification:Overflow ):Underflow)2> overflow result:Unsigned char 0 255Signed Char-128 127Unsigned int 0 65535Signed int-32768 32767Overflow moves counter-clockwise on the circle; overflow moves along the clock on the circle.Example: signed INT: 32767 + 1 =-32768;-32768-1 = 32767Unsigned char: 255 + 1 = 0; 0-1 = 2553> to avoid overflow, you can set the overflow protection fun
the CPU-level intx. (tms320f2833x SYSTEM CONTROL and interrupts REFERENCE guide)Pie Interrupt Register: PIECTRL,PIEACK,PIEIFRX3 CPU-level interruptsOnce the interrupt request reaches the CPU level, the CPU level and the INTX corresponding interrupt flag bit (IFR) is set one, if the CPU interrupt allow register (IER) or debug interrupt allow register (dbgier) and the global interrupt screen bit (INTM) is allowed, the CPU will execute the interrupt request.Registers that require manual zeroing du
Design and Implementation of DSP for aerial image compression system
[Date:]
Source: Electronic Technology Application Author: Wang yujing Gao xueqiang Yang rijie Yang Chunying
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Because aerial images provide a large amount of intuitive information, they are widely used in military reconnaissance, rescue and disaster relief, meteorological detection, and other fields. Because aerial images are remotely im
Both Quartus and NIOS are of version 9.1. Find information on the Internet that version 9.1 supports MATLAB r2008a, but does not support r2009a. Then, on the official website, we found that only DSP Builder of 9.1 SP2 is supported. After installing the software in the sequence of MATLAB and DSP Builder, we found that our license had very few IP addresses. (When installing
Definition of Segment 1. Cinit stores the initial values and constants of variables in the C program;. Const stores character constants, floating point constants, and constants declared with const in C programs;. Switch stores the switch statement in C program;. Text stores the C program code;. BSS reserves the storage space for global and static variables in the C program;. Far reserves space for global and static variables declared by far in C Programs;. Stack is a storage space reserved by th
This is actually my DSP course design, frankly speaking, a semester of the DSP course did not make me on the DSP chip to increase how much understanding, more harvest is finally know before looking like the Heavenly Book Digital signal processing is used to do what, however, this also does not have any eggs, also did not reduce my hatred of Fourier, Haha, I'm jok
I. GMSK modulation signal generation, software radio DSP implementation processTwo. Gmsk demodulation, one-bit differential demodulation, DSP implementation processThree. Based on the software radio architecture idea, has been implemented and optimized DSP, in line with the projectFour. ReferencesThe DSP realization of
When the Dsp/bios device is initialized, each bound function (Mdbinddev) that is registered to the micro-drive is invoked. Binding functions typically implement the following functions: Initializing peripherals based on configured device parameters and possible global device data, suspending the interrupt service function (ISRs), and obtaining resources such as caching, Mcbsps, Mcasps, and DMA.
If the micro-drive uses multiple external devices, the
The ISP is the abbreviation for Image Signal Processor, which is the graphics signal processor. DSP is the abbreviation of digital Signal Processor, also known as the signal processor.
The ISP typically handles output data from image sensors, such as AEC (AE control), AGC (Automatic gain control), AWB (auto white balance), color correction, Lens shading, Gamma correction, removal of bad points, Processing of auto Black level, auto white level and so o
1. Introduction
Robot visual servo system is an important research direction in the robot field. It originated in the early 1980s s and has made great progress with the development of computer technology, image processing technology, and control theory, some systems are in use. Visual servo is different from what we usually call machine vision. visual servo uses the principle of machine vision to automatically obtain and analyze images. From the directly obtained image processing feedback inform
The tms320c6678 is a 8-core DSP processor for the Keystone Architecture , with a frequency of up to 1.25 GHzper Corepac core, providing powerful fixed-point and floating-point arithmetic capabilities, At the same time the chip internal integration of multicore Navigator, RapidIO, Gigabit Ethernet and EDMA peripherals, due to the chip processing power, peripheral features rich, and on-chip integration of a large number of hardware accelerators, such as
#include #include#include#include#include#include#include/*The following three parameters are related to a specific file * cmd:file audio file * [file Pass.wav] =>> Pass.wav:RIFF (Little-endian) data, WAVE Audio, Microso FT PCM, + bit, mono 44100 Hz * 1. 16-bit * 2. Mono for the channel =1, stereo for stereo = 2 * 3. 44100HZ frequency This is what we all know, and the number of bits to capture or play audio for a second. */#defineRate 44100#defineSIZE 16#defineCHANNELS 1//1 for Mono, 2 for stere
Design NotesFingerprint identification is used in a variety of applications, including electronic access control systems, smart cards, vehicle ignition switch controls, USB memory sticks with fingerprint-controlled access, and many other applications. The digital signal processing elements in fingerprint scanner can perform complex DSP functions such as filtering, transformation, feature extraction, matching operation and other algorithms.Fingerprint
Test process 1 of FFT operation using FPU + DSP library of iisf4, stm32f4fpu
Test environment: Microcontroller: STM32F407ZGT6 IDE: keil5.255.0.0 Firmware Library version: STM32F4xx_DSP_StdPeriph_Lib_V1.4.0
Part 1: UseSource code fileUse the void arm_cfft_radix4_f32 (const arm_cfft_radix4_instance_f32 * S, float32_t * pSrc) function to perform the FFT operation.
Prepare an empty project, configure the Keil environment, and enable FPU units that can pre
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