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IVA Intelligent Video Analysis

1

Intelligent Video Analysis from Bosch

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Разработки по видеоанализу из других рынков

Например оборонные приложения, а также автомобильный рынок (DRIVING ASSISTANCE)

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Что такое видеоаналитика?

BOSCH IVA это система – «помощник» оператора.Привлечение внимания оператора в нужный момент!

IVA превращает камеры в «виртуальную службу безопасности»

Цель – привлечь внимание оператора в нужный момент, а такжеСократить время поиска интересующих событий в архиве.

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ФАКТ

Некоторые исследования показывают оператор способен пропустить до 95% событий только лишь после 22 минут непреывного мониторинга.

И это при наблюдении только за одним монитором.

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IVA – это математические программные алгоритмы

В короткой технической демонстрации постараемся разобраться . В возможностях аналитики Также важным моментом являются существующие ограничения.

Далеко не все маркетинговые обещания реалистичны. Итак….

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Аналитика работает непосредственно в камере

Intro

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Why not centralized VCA processing Мощный процессор (dual

core)

Легче разработка

Единая точка отказа

Сервис (higher TCO)

Вирусы

Потребление электроэнергии

Высокая нагрузка на сервер

…

Почему Бош выбирает децентрализованную аналитику

Intro

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What IVA can do:Loitering Object stay within a configured area for a configured time.Idle object After a defined time and its idle state displayed; Later the view is learned as new background.Removed object Identify a change in the formerly learned background Follow Route Identify when an object is following an expected pathLine Crossing(s) Alarm when an object crosses a (set of) line(s).Color Alarm when an object fits the Color specificationsHead detection Distinguish between a human being and non human

object

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Face detection /Head Tracker

9

Detection of faces on objects by adaptive color and shape of the human head Optimizing Object Specification – Human! Optimizing Forensic Search for “find all faces in the latest hour”

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Flow detection – an additional algorithm

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Specifically designed for crowded environments Can for example detect movement against the general direction of a crowd

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11ST-PRM/EU Gerard Otterspeer/Ruud Toonders | 10/05/2009 | © Robert Bosch GmbH 2009. All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.

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What VCA can’t do

Detect pick pocketingDetect pick pocketing Detect drugs usageDetect drugs usage

Detect intruders when visually limited

Detect intruders when visually limited Find the concealed weaponFind the concealed weapon

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Два основных приложения видеоаналитики

Собственно видеонаблюдение Быстрый поиск в архиве –

Forensic Search

Способ Обработка «на борту» Калибровка передача и сохранение метаданных

Видеоаналитика Бош

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VCA sensor

Live viewing and alarming

Storage and retrieval “forensics”

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Process Flow

Video Content

Description(VCD)

Rec. eng.

USB/CFiSCSI/VRM

MetadataVideo

+

RuleEngine

CalibrationRules/Tasks

PlaybackPlayback

Sensitive area Min / max obj size

Config ManagerConfig Manager

Metadata

CalibrationRules/Tasks

RuleEngine

AL 1

AL 8

Motion alarm+

Metadata

BVMSBVMS

# 2 System Architecture

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Метаданные для интеллектуального поиска в архиве

Метаданные с учетом Чувствительной области и

мин/макс размера объекта

В программе Archive player возможен интеллектуальный поиск в архиве.

Непрерывная запись

# 2 System Architecture

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Калибровка может быть выполнена в Conf Manager или в IE

Конфигурация/Калибровка

#3 Configuration

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Калибровка Наша задача настроить следующие параметры

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Настройки калибровки могут быть проверены.

Калибровка

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Калибровка: Углы наклона и поворота

2m

Camera elevation

angle

2m

Camera elevation

angle

Camera elevation

Angle

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Глобальные настройки

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Sensitive area Чем больше чувствительная область – тем больше загрузка ЦП Большее количество задач также повышает загрузку ЦП.

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СтатистикаВ случае если

видеокамера откалибрована, гистограмма будет

Соответствовать реальным размерам объектов в поле зрения камеры.

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Каждая камера поддерживает максимум 8 задач. Событие или задача привязаны к примитивам: -линия, поле, маршрут.

Configuration of Tasks

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Алгоритм стабилизации изображении

Максимум ~16 пикселей на 4CIF. (~ 2.25%)

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Low-pass filter на видео входе Позволяет сгладить слишком зашумленное видео Эффективно для сглаживания

Изображение с шумом

standardcamera image quality

# 4 Best experiences and Facts

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Два важных замечания:1. Вы можете оптимизировать

видеосигнал для .

2. Стабилизация видео облегчает работу аналитики, но не убирает «дрожание» картинки при просмотре!

without Image Stabilisation with Image Stabilisation

# 4 Best experiences and Facts

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Детектирование скорости

Достаточно неточно

Точность существенно выше

# 4 Best experiences and Facts

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Тень – часть детектируемого объекта

# 4 Best experiences and Facts

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Forensic Search

Bosch IVA предлагает революционный функционал интеллектуального поиска в архиве.

Эта опция экономит очень много времени и усилий. Возможно детектирование событий, реакция на которые не была

настроена изначально.

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BOSCH Intelligent Video Analysis IVA

Спасибо!