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**131 854 resultados para test background em vídeos**

Retro tv test pattern please stand by broadcast signal. waiting screen vintage television. 4k animation video

00:10

TV colour bars test card screen. SMPTE Television Color Test Calibration Bars. Test card. SMPTE color bars. Graphic for footage video and 1Khz Sine Wave

00:28

Cartoon style word quiz time with a sunburst background

00:05

Please stand by screen display featuring a tv test pattern with please stand by message. Suitable for indicating waiting times in presentations. 4k looping

00:10

Blue futuristic chemical structural formulas Health care and science Medical innovation loop background design. Geometric abstract background with hexagons. Medicine, science and technology.

00:20

Vintage television test pattern overlay with colorful bars and glitch effect moving vertically with hand drawn scribbles creating analog distortion seamless loop animation

00:15

4k stock| . Static color simple noise. Error video glitch. Bad damage interface. No signal stock animation. Video no signal test pattern on TV screen; colorful flickering.

00:10

Quiz Neon Line Animation with option selection on black background

00:20

Laboratory technician writing notes on a clipboard while holding a test tube with blue liquid, with test tubes rack and microscope in background, in a medical research laboratory

00:15

no signal glitch screen VHS Color Bars Glitch Animation with Analog Distortion Retro Broadcast Test Screen for Vintage Video and Motion Graphics

00:10

Please stand by screen with color bars pattern background with static noise

00:05

Scientist hands with microscope close-up shot in the laboratory

00:13

Math equations motion overlay animation with symbols and graphs floating randomly with alpha matte. 4K animated formula overlay for creative thinking, math visualization, and background effect.

00:23

Quiz Neon Line Animation with option selection on black background Quiz Animation template, question and test menu choice quiz show question and answers with option.

00:10

Hantavirus blood test tube doctor hands blue gloves white medical coat background stethoscope healthcare diagnostics clinical laboratory analysis concept of healthcare, medicine, science

00:08

Bright RGB color changing animated background for screen test

00:12

Television turn on and off. Vintage switch on, turn off television. Led Tv on and off. Lcd Tv on and off effect on black background

00:12

Medical concept of a heartbeat waveform fading to a flatline on black background representing.neon heart cardiogram animation on black background. heartbeat and pulse neon glowing 4k video .

00:10

hand of scientist with test tube and flask in medical chemistry lab blue banner background

00:22

Digital security shield with binary code and abstract technology background

00:05

math equation handwriting calculation loop animation overlay effect isolated on green screen background

00:12

Scientist with gloves injecting liquid sample into a plastic gradient lab for test

00:09

Medical professional in blue gloves handling a feces sample test tube isolated on a white background

00:08

Scientist holding glowing test tube in laboratory with equipment in background

00:10

Eye Scan Futuristic Biometric Security Iris Recognition, Blue Eyes, Technology, Vision, Scanning, Authentication, Identity Verification. Eye Iris Digital Abstract Technology Artificial Intelligence

00:21

LCA, Life cycle assessment concept on the transparent background. Carbon footprint evaluation and environmental impact assessment related to product value chains. Motion graphics of life cycle idea.

00:15

Hands in blue gloves hold a test tube containing a yellow liquid, showcasing a close-up view of the sample in a laboratory setting with blurred background elements

00:08

A Demo button on a clear projection ,Blue wave digital data flow. Seamless loop technology network background concept . Futuristic digital technology data connection symbols on a deep cyan color

00:10

Medium shot of a treadmill in an outpatient cardiac testing area with focused monitoring equipment and blurred background highlighting stress test setup.

00:06

Pool water test kit in hands measuring ph and chlorine levels, close up of chemical analysis during private swimming pool maintenance, turquoise water background

00:22

focused Asian researcher in lab coat studies brain scans on monitor with one showing activity hot spots Lab equipment including microscope and beakers with blue liquid is blurred in the background

00:10

Please Stand By - Retro Television Test Pattern with Static and Glitch Effect.

00:10

Student hand writing exam paper in classroom with blurred background and warm natural lighting

00:06

Glitch static on the tv, no signal preview on the tv 4K resolution video

00:10

Neon ecg line animation video on black background. Heart beat. Electrocardiogram. One pulse line. ECG heartbeat monitor, ECG monitor, Heart beating and pumping, medical abstract animation.

00:06

Interactive quiz neon line animation with multiple choice options on black background for challenge game template.

00:10

Red circle animated marker hand-drawn highlighter elements. Hand-drawn oval animation, Hand-drawn red circle highlight with transparent background.

00:08

Question mark neon sign light on black background. neon question mark frame for quizzes and FAQs. Neon , question and test menu choice quiz show question and answers. quiz trivia game competition.

00:10

Macro Shot of Eye Pupil Opening with Beautiful Blue Iris. Zoom in to an Infinite Black Background and Zoom out to Macro Close up. Healthy Eyesight concept.

00:09

Stressed student clutching head during a difficult exam in a classroom. Anxious young man struggling with a test while a teacher walks in the background. Academic pressure and failure concept

00:06

Abstract blue lights animated on a dark background. abstraction neon Lines moving up screen with black background.

00:10

Digital X ray visualization of a human hand skeleton showing inflamed red joints against a black background

00:10

Animated 'Quiz Time' Pop Art Text Bubble - Vibrant Comic Explosion with Retro Rays Background

00:08

Diabetes. Digital glucometer, apple, test strips, dumbbell, stethoscope and sneakers on blue background, closeup. Camera moving in

00:09

Retro Television Test Pattern with "Please Stand By" Message

00:10

Scientist in blue glove holding small vial with yellow liquid sample next to rack of test tubes in laboratory setting, 4k video

00:10

Growing Stock Market Chart - Abstract Animation Loop. Economical growth in financial industry. Rising prices of corporate shares animated background. Business bullish market financial concept

00:08

doctor or laboratory technician in medical gloves holding blood test tube against background of analysis samples in clinical laboratory healthcare concept copy space

00:10

A confident business leader stands in the foreground, exuding professionalism, while a diverse group of colleagues engages thoughtfully in the background within a modern office environment.

00:10

Vintage television signal error display. Retro color bars static broadcast screen. Television test pattern no signal broadcast interference static screen glitch abstract background.

00:10

Microscopic view of glowing blue cells and particles floating in a dark blue background with a shallow depth of field.

00:08

math equation handwriting loop animation on black background

00:12

gloved hand in lab coat holds vial with bright fuchsia liquid Blurred laboratory background shows test tubes and other glassware indicating scientific research in progress

00:10

The Devil tempted and tested Jesus Christ in the desert. Bible scene theme concept.

00:08

A female scientist holds scientific laboratory test tubes for blood analysis in her hands. Clinic doctor, medical technician conducts laboratory testing of blood samples.

00:18

Slow motion young man scientist with glasses and protective gloves looking under the microscope holds a tube in the laboratory. Medicine, biotechnology, chemistry. On background colleague walking

00:13

Hand-drawn red circle marker animation, Hand-drawn red circle highlight animation isolated transparent background in 4k alpha channel.

00:05

Retro Analog TV Glitch Background. Distorted No Signal Screen Error, White Noise Static, Flickering Color Bars Test Pattern Animation 4k video animation seamless loop

00:10

One-minute black and white retro TV test pattern with countdown timer in center. Perfect for broadcasters and streamers countdown.

01:00

White Smoke is Slowly Moving. Gray smoke on a black background slowly dissipates and disappears from the screen

00:30

Close up of a scientist holding a hantavirus blood test tube on a white background

00:13

Morning atmosphere in the classroom with a blackboard, wooden tables and chairs. Seamless 4K looping timelapse video animation background

00:12

Question and test menu choice quiz show question and answers with option. Quiz Neon Line Animation with option selection on black background.

00:10

Laboratory Scene with Medical Professional Holding Blood Sample in Test Tube with Row of Samples in Background Under Soft Lighting

00:10

Laboratory technician wearing gloves carefully picking a test tube with blue liquid from a rack full of samples, with a microscope in the background

00:16

silk fabric, beige pastel color forms beautiful folds in air in slow motion, texture of woven weave soft folds, ripples delicate silks slowly moving, background, test, image for fashion luxury design

00:24

Gloved hand holding blood sample tube for urology problem diagnosis, medical laboratory analysis and healthcare concept, sterile equipment, clinical test, hospital background, clinical analysis

00:05

Macro shot of fine air bubbles rising in water in glass test tube on black background. Effervescent tablet aspirin. The medicine concept, health care, treatment. Slow motion. High quality FullHD

00:21

Close up woman cupping hand to ear listening carefully

00:05

Asian people scientist in lab coat and protective gloves working with test tubes with mix liquids, with microscope and other test tubes in the background in laboratory.

00:24

Close up of test tubes with red and blue liquid in a laboratory setting.

00:08

A doctor carefully examines a virtual x-ray projection with focused attention. The integration of advanced technology in medical diagnostics. Generative AI.

00:09

Anatomical heart with glowing pulse monitor and abstract futuristic background

00:05

Clear liquid being added to a test tube.

00:10

Science and nature concept, green laboratory with test tubes

00:12

A curling stone with a red handle sits on a white ice surface with two brooms on either side, surrounded by people in the background

00:08

AI generated faceless scientist hand holding test tube defocused digital DNA graphics background cancer research concept biomarker detection visualization future medical

00:10

Math, mathematics, science, physics formula equation handwritten text loop animation black and white background

00:12

no signal old TV background. Television screen error. color bars technical problems, white noise. TV Distortion and Flickering Animation. Distorted TV Test Pattern Glitch: Retro Analog Static Noise

00:10

Quiz time animation effect steel impact on background 4k video

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Closeup of quantum computer chip testing with microprobes on a dark circuit board, 4k video

00:10

Please Stand By text on the retro TV screen, no signal, silence, The classic TV static pattern. used when the network is experiencing technical difficulties in the middle of a broadcast.

00:10

Stethoscope on Patient's Chest. Symbolizes medical examination, trust, and primary care.

00:05

Close up view of young child opening mouth wide showing inside oral cavity, expressive facial detail for dentistry examination concept, pediatric health care checkup and clean white background portrai

00:06

Doctor hand in blue medical glove holding glass vial with blood and Anemia tag. Laboratory close-up of hematology test sample for disease diagnosis. Healthcare and medicine concept

00:10

no signal glitch screen VHS Color Bars Glitch Animation with Analog Distortion Retro Broadcast Test Screen for Vintage Video and Motion Graphics

00:10

White laboratory mouse on gloved hand with test tubes in background, scientific research and medical study

00:10

Administration Management Software for Workflow Testing and Process Analysis. Interface Elements and Programming Options on a Computer Screen. Software Development Tool for Debugging and Configuration

00:13

Person taking online survey on laptop at desk in office background

00:05

Positive pregnancy test results with colorful pills on background showing medical concept of family planning

00:10

Doctor monitors a shirtless man performing an exercise stress test on a treadmill in a medical lab

00:08

Green check mark, red cross mark Animation. Animated checklist signs, approval badge. Flat and modern checkmark transparent background

00:30

Dynamic cell research under microscope in modern lab setting, envisioning medical breakthrough with cutting edge technology and scientific discovery

00:05

Broadcast Test Card With 59-Second Countdown For Technical Breaks. Color television test pattern with Please Stand By text and countdown timer from 00:59 to 00:00 seconds.

01:00

Technical difficulties retro vintage tv screen test pattern broadcast. 4k video

00:10

Glowing Solution: Close-up of a laboratory test tube filled with a shimmering liquid and bubbles. Emphasizing the fusion of scientific exploration and aesthetic beauty.

00:10

Intelligent testing and repair of circuit boards.High-tech and industrial automation.

00:19

Soil sample analysis in test tubes for agricultural research

00:05

Glass test tubes with liquid on white background.

00:12

Close-up view of assorted wine corks in various textures and colors, showcasing the unique characteristics of cork material, camera zooms in for detailed examination

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